CN106402371B - A kind of mode switch control method of transfer gear, apparatus and system - Google Patents
A kind of mode switch control method of transfer gear, apparatus and system Download PDFInfo
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- CN106402371B CN106402371B CN201510450450.5A CN201510450450A CN106402371B CN 106402371 B CN106402371 B CN 106402371B CN 201510450450 A CN201510450450 A CN 201510450450A CN 106402371 B CN106402371 B CN 106402371B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 230
- 230000007935 neutral effect Effects 0.000 claims abstract description 146
- 230000006641 stabilisation Effects 0.000 claims description 98
- 230000007704 transition Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 206010052804 Drug tolerance Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000026781 habituation Effects 0.000 description 2
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- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe ; Circumventing or fixing failures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe ; Circumventing or fixing failures
- F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe ; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
- F16H2061/1216—Display or indication of detected failures
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The present invention provides a kind of mode switch control methods of transfer gear, apparatus and system, it is related to automobile technical field, for solving to lead to transfer gear because transmission shift lever cuts out neutral gear when transfer gear carries out 4L pattern switching there is a phenomenon where beat tooth.The mode switch control method of transfer gear of the present invention include: when and meanwhile meet user's request transfer gear made to carry out 4L pattern switching and transfer gear and carrying out pattern switching and when transmission shift lever is in neutral gear, making instruction of the speed changer not to transfer gear output torque；When meeting transmission shift lever simultaneously and be in neutral gear and transfer gear and complete pattern switching, sending speed changer makes speed changer to the instruction of transfer gear output torque.By the present invention in that speed changer carries out 4L pattern switching Shi Buxiang transfer gear output torque in transfer gear, preventing transfer gear, there is a phenomenon where beat tooth.When carrying out 4L pattern switching, there is a phenomenon where beat tooth for preventing transfer gear by the present invention.
Description
Technical field
The present invention relates to automobile technical field, in particular to a kind of mode switch control method of transfer gear, device and it is
System.
Background technique
Transfer gear is the significant components of automobile dynamic system, its main function is by the power distribution of dynamical system output
To forward and backward drive shaft, automobile four-wheel driving is realized.Transfer gear generally includes speed driving modes and low speed driving mode, high speed
Drive mode includes high speed 4 wheel driven mode (hereinafter referred to as 4H mode), two drive mode (2H mode) of high speed, low speed driving mode packet
Include low speed 4 wheel driven mode (hereinafter referred to as 4L mode), wherein when transfer gear is in 4L mode, transfer gear output can be improved
Torque, so that automobile smooth-ride under more complex road conditions, improves the kinetic stability of automobile；And when running car is relatively flat
When under suitable road conditions, then transfer gear can be made to be under speed driving modes, so that automobile speed with higher.Therefore, lead to
Crossing makes transfer gear carry out pattern switching, can improve kinetic stability of the vehicle under different road conditions, and can improve vehicle
Fuel economy and travel safety.
When above-mentioned transfer gear carries out 4L pattern switching, even if transfer gear is cut or cuts out 4L mode, in order to make transfer
Device can go on smoothly 4L pattern switching, and automobile must satisfy that transmission shift lever is in neutral gear (N grades) and speed is less than 5km/h
Condition.However, the required time is longer (generally requiring 5s~7s) when due to transfer gear progress 4L pattern switching, work as transfer
When device does not complete 4L pattern switching, transmission shift lever is cut out neutral gear (N grades) by user, at this point, passing to transfer by speed changer
The limit that the torque of device can be able to bear beyond the gear in transfer gear, so as to cause transfer gear, there is a phenomenon where beat tooth.
Summary of the invention
In view of this, the present invention is directed to propose a kind of mode switch control method of transfer gear, with solve when transfer gear into
When row 4L pattern switching, leads to transfer gear because transmission shift lever cuts out neutral gear there is a phenomenon where beat tooth.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of mode switch control method of transfer gear, comprising:
Obtaining user's request makes whether the information of transfer gear progress pattern switching, the transfer gear are carrying out pattern switching
Information and transmission shift lever locating for gear information；
Make whether the information of the transfer gear progress pattern switching, the transfer gear are carrying out mode according to user's request
The information of gear locating for the information of switching and the transmission shift lever judges whether to meet simultaneously: user's request makes described
Transfer gear carries out 4L pattern switching, and the transfer gear is carrying out pattern switching, and the transmission shift lever is in neutral gear；
The transfer gear progress 4L pattern switching, the transfer gear is set to carry out mode and cut when meeting user's request simultaneously
It changes, when the transmission shift lever is in these three conditions of neutral gear, makes the speed changer not to the transfer gear output torque；
Whether the information and the transfer gear for obtaining gear locating for the transmission shift lever complete pattern switching
Information；
Whether pattern switching is completed according to the information of gear locating for the transmission shift lever and the transfer gear
Information judges whether to meet simultaneously: the transmission shift lever is in neutral gear, and the transfer gear completes pattern switching；
When meeting simultaneously, the transmission shift lever is in neutral gear, the transfer gear completes the two conditions of pattern switching
When, make the speed changer to the transfer gear output torque.
Further, the transfer gear is made to carry out 4L pattern switching, the transfer gear when meeting user's request simultaneously
When progress pattern switching, the transmission shift lever are in these three conditions of neutral gear, make the speed changer not to the transfer gear
After output torque, the mode switch control method of the transfer gear further include:
The information of gear locating for the transmission shift lever is obtained, and judges whether the transmission shift lever cuts out sky
Gear；
When the transmission shift lever cuts out neutral gear, the combination instrument assembly into automobile sends the invalid letter of gear
Number, so that the combination instrument assembly is shown image information warning and/or makes a sound information warning；
The information of gear locating for the transmission shift lever is obtained, and judges whether the transmission shift lever cuts sky
Gear；
When the transmission shift lever cuts neutral gear, Xiang Suoshu combination instrument assembly sends the effective signal of gear, makes
The combination instrument assembly closes image information warning and/or sound information warning.
Further, the transfer gear is made to carry out 4L pattern switching, the transfer gear when meeting user's request simultaneously
When progress pattern switching, the transmission shift lever are in these three conditions of neutral gear, make the speed changer not to the transfer gear
After output torque, the mode switch control method of the transfer gear further include:
The information of gear locating for the transmission shift lever is obtained, and judges whether the transmission shift lever cuts out sky
Gear；
When the transmission shift lever cuts out neutral gear, the invalid letter of gear is sent to the body electronics systems stabilisation of automobile
Number, so that the body electronics systems stabilisation is obtained the gradient on road surface locating for automobile and judges that the gradient on road surface locating for automobile is
It is no to be more than or equal to 6%；
When the gradient on the road surface locating for the automobile is more than or equal to 6%, brake the body electronics systems stabilisation row pressure maintaining；
The information of gear locating for the transmission shift lever is obtained, and judges whether the transmission shift lever cuts sky
Gear；
When the transmission shift lever cuts neutral gear, Xiang Suoshu body electronics systems stabilisation sends gear and effectively believes
Number, so that the body electronics systems stabilisation is kept pressure maintaining braking 1s~2s backed off after random pressure maintaining braking.
Further, when the gradient on the road surface locating for the automobile is more than or equal to 6%, hold the body electronics systems stabilisation
Before row pressure maintaining braking, the body electronics systems stabilisation is set to obtain the state of the electronic parking control system of automobile, and judge
Whether the electronic parking control system is activated；When the electronic parking control system is activated, make the body electronics
Systems stabilisation does not execute pressure maintaining braking；
When the gradient on the road surface locating for the automobile is more than or equal to 6%, the body electronics systems stabilisation is made to execute pressure maintaining system
Before dynamic, the body electronics systems stabilisation is set to obtain the state of the brake pedal of automobile, and whether judge the brake pedal
It is operated；When the brake pedal is operated, the body electronics systems stabilisation is made not execute pressure maintaining braking.
In the mode switch control method of transfer gear provided by the invention, sky is in when meeting transmission shift lever simultaneously
When gear, user's request make transfer gear progress 4L pattern switching, transfer gear carry out these three conditions of pattern switching, then make speed change
Device is not to transfer gear output torque；Make speed changer not to after the instruction of transfer gear output torque, when meeting shift of transmission simultaneously
When bar is in neutral gear, transfer gear completes the two conditions of pattern switching, then make speed changer to transfer gear output torque.Therefore, make
Speed changer is not to after transfer gear output torque, when transmission shift lever is cut out neutral gear by user, due to not receiving at this time point
The information of pattern switching is completed in dynamic device, and because making the instruction of shift of transmission without sending to speed changer, speed changer is still within
Not to the state of transfer gear output torque so that transfer gear carries out 4L pattern switching in the state that zero torque inputs, because without
It will appear the case where speed changer passes to the limit that the torque of transfer gear is able to bear beyond the gear in transfer gear, so as to
The generation for beating tooth phenomenon is generated to avoid transfer gear.
Another object of the present invention is to provide a kind of mode transition controller of transfer gear, with solve when transfer gear into
When row 4L pattern switching, leads to transfer gear because transmission shift lever cuts out neutral gear there is a phenomenon where beat tooth.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of mode transition controller of transfer gear, comprising:
Module is obtained, makes whether just transfer gear carries out the information of pattern switching, the transfer gear for obtaining user's request
The information of the gear locating for the information and transmission shift lever for carrying out pattern switching；And whether the transfer gear completes mould
The information of formula switching；
Control module, user's request for being obtained according to the acquisition module make the transfer gear carry out pattern switching
Information, the transfer gear whether carrying out pattern switching information and the transmission shift lever locating for gear letter
Breath judges whether to meet simultaneously: user's request makes the transfer gear carry out 4L pattern switching, and the transfer gear is carrying out mould
Formula switching, and the transmission shift lever is in neutral gear；And
The transfer gear progress 4L pattern switching, the transfer gear is set to carry out mode and cut when meeting user's request simultaneously
It changes, when the transmission shift lever is in neutral gear, makes speed changer not to the transfer gear output torque；And
The information of gear locating for the transmission shift lever obtained according to the acquisition module and the transfer gear
The information for whether completing pattern switching judges whether to meet simultaneously: the transmission shift lever is in neutral gear, and the transfer gear
Complete pattern switching；And
When simultaneously meet the transmission shift lever be in neutral gear, the transfer gear completion pattern switching when, make the change
Fast device is to the transfer gear output torque.
Further, the transfer gear is made to carry out 4L pattern switching, the transfer gear when meeting user's request simultaneously
When progress pattern switching, the transmission shift lever are in these three conditions of neutral gear, make the speed changer not to the transfer gear
After output torque, shelves locating for the transmission shift lever that the control module is also used to be obtained according to the acquisition module
The information of position judges whether the transmission shift lever cuts out neutral gear；And
When the transmission shift lever cuts out neutral gear, the combination instrument assembly into automobile sends the invalid letter of gear
Number, so that the combination instrument assembly is shown image information warning and/or makes a sound information warning；And
The information of gear locating for the transmission shift lever obtained according to the acquisition module judges the speed changer
Whether gear lever cuts neutral gear；And
When the transmission shift lever cuts neutral gear, Xiang Suoshu combination instrument assembly sends the effective signal of gear, makes institute
It states combination instrument assembly and closes image information warning and/or sound information warning.
Further, the transfer gear is made to carry out 4L pattern switching, the transfer gear when meeting user's request simultaneously
When progress pattern switching, the transmission shift lever are in these three conditions of neutral gear, make the speed changer not to the transfer gear
After output torque, shelves locating for the transmission shift lever that the control module is also used to be obtained according to the acquisition module
The information of position judges whether the transmission shift lever cuts out neutral gear；And
When the transmission shift lever cuts out neutral gear, the invalid letter of gear is sent to the body electronics systems stabilisation of automobile
Number, so that the body electronics systems stabilisation is obtained the gradient on road surface locating for automobile and judges that the gradient on road surface locating for automobile is
It is no to be more than or equal to 6%；And
When the gradient on the road surface locating for the automobile is more than or equal to 6%, brake the body electronics systems stabilisation row pressure maintaining；
And
The information of gear locating for the transmission shift lever obtained according to the acquisition module judges the speed changer
Whether gear lever cuts neutral gear；And
When the transmission shift lever cuts neutral gear, Xiang Suoshu body electronics systems stabilisation sends gear and effectively believes
Number, so that the body electronics systems stabilisation is kept pressure maintaining braking 1s~2s backed off after random pressure maintaining braking.
The mode switch control method of the mode transition controller of the transfer gear and above-mentioned transfer gear is relative to existing
Advantage possessed by technology is identical, and details are not described herein.
Another object of the present invention, which also resides in, provides a kind of mode switching control system of transfer gear, to solve to work as transfer gear
When carrying out 4L pattern switching, leads to transfer gear because transmission shift lever cuts out neutral gear there is a phenomenon where beat tooth.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of mode switching control system of transfer gear, comprising:
Transfer gear electronic control unit makes transfer gear carry out the information of pattern switching, the transfer gear for obtaining user's request
Whether the information and the transfer gear that are whether carrying out pattern switching complete the information of pattern switching；
Transmission shift lever point valve, for obtaining the information of gear locating for transmission shift lever；
Speed changer electronic control unit connects with the transfer gear electronic control unit and transmission shift lever position valve signal respectively
It connects, for being made according to user's request, the transfer gear carries out the information of pattern switching, whether the transfer gear is carrying out mode
The information of gear locating for the information and transmission shift lever of switching judges whether to meet simultaneously: user's request makes described point
Dynamic device carries out 4L pattern switching, and the transfer gear is carrying out pattern switching, and the transmission shift lever is in neutral gear；And
The transfer gear progress 4L pattern switching, the transfer gear is set to carry out mode and cut when meeting user's request simultaneously
It changes, when the transmission shift lever is in neutral gear, makes speed changer not to the transfer gear output torque；And
Whether pattern switching is completed according to the information of gear locating for the transmission shift lever and the transfer gear
Information judges whether to meet simultaneously: the transmission shift lever is in neutral gear, and the transfer gear completes pattern switching；And
When simultaneously meet the transmission shift lever be in neutral gear, the transfer gear completion pattern switching when, make the change
Fast device is to the transfer gear output torque.
Further, the mode switching control system of the transfer gear further includes combination instrument assembly, the combination instrument
Assembly is connect with the transmission control unit signal；
The transfer gear progress 4L pattern switching, the transfer gear is set to carry out mode and cut when meeting user's request simultaneously
It changes, when the transmission shift lever is in these three conditions of neutral gear, the speed changer electronic control unit makes the speed changer not to institute
After stating transfer gear output torque, the information of speed changer electronic control unit gear according to locating for the transmission shift lever is sentenced
Whether the transmission shift lever that breaks cuts out neutral gear；
When the transmission shift lever cuts out neutral gear, the speed changer electronic control unit is sent to the combination instrument assembly
The invalid signal of gear makes the combination instrument assembly show image information warning and/or makes a sound information warning；
The information of speed changer electronic control unit gear according to locating for the transmission shift lever judges the speed changer
Whether gear lever cuts neutral gear；
When the transmission shift lever cuts neutral gear, the speed changer electronic control unit sends shelves to the combination instrument assembly
The effective signal in position, makes the combination instrument assembly close image information warning and/or sound information warning.
Further, the mode switching control system of the transfer gear further includes body electronics systems stabilisation, the vehicle body
Electric stabilizing system is connect with the speed changer electronic control unit signal；
The transfer gear progress 4L pattern switching, the transfer gear is set to carry out mode and cut when meeting user's request simultaneously
It changes, when the transmission shift lever is in these three conditions of neutral gear, the speed changer electronic control unit makes the speed changer not to institute
After stating transfer gear output torque, the information of speed changer electronic control unit gear according to locating for the transmission shift lever is sentenced
Whether the transmission shift lever that breaks cuts out neutral gear；
When the transmission shift lever cuts out neutral gear, the speed changer electronic control unit is to the body electronics systems stabilisation
The invalid signal of gear is sent, the body electronics systems stabilisation is made to obtain the gradient on road surface locating for automobile and judges automobile institute
Whether the gradient on the road surface at place is more than or equal to 6%；
When the gradient on the road surface locating for the automobile is more than or equal to 6%, the body electronics systems stabilisation executes pressure maintaining braking；
The information of speed changer electronic control unit gear according to locating for the transmission shift lever judges the speed changer
Whether gear lever cuts neutral gear；
When the transmission shift lever cuts neutral gear, the speed changer electronic control unit is to the body electronics systems stabilisation
The effective signal of gear is sent, the body electronics systems stabilisation keeps pressure maintaining braking 1s~2s backed off after random pressure maintaining braking.
The mode transition controller of the mode switching control system of the transfer gear and above-mentioned transfer gear is relative to existing
Advantage possessed by technology is identical, and details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of the mode switch control method of transfer gear provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the mode switch control method of another transfer gear provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the mode transition controller of transfer gear provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the mode switching control system of transfer gear provided in an embodiment of the present invention.
10- acquisition module, 20- control module,
30- speed changer electronic control unit, 40- transfer gear electronic control unit,
50 transmission shift lever point valves, 60- combination instrument assembly,
70- body electronics systems stabilisation.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to Fig. 1, the mode switch control method of transfer gear provided in an embodiment of the present invention includes:
Step 101, acquisition user's request make whether the information of transfer gear progress pattern switching, transfer gear are carrying out mode
The information of gear locating for the information and transmission shift lever of switching；
Step 102 makes whether the information of transfer gear progress pattern switching, transfer gear are carrying out mode according to user's request
The information of gear locating for the information and transmission shift lever of switching judges whether to meet simultaneously: user request make transfer gear into
Row 4L pattern switching, and transfer gear is carrying out pattern switching, and transmission shift lever is in neutral gear；
Step 103 is carrying out mode and is cutting when meeting user's request simultaneously transfer gear is made to carry out 4L pattern switching, transfer gear
It changes, when transmission shift lever is in these three conditions of neutral gear, makes speed changer not to transfer gear output torque；
Whether step 104, the information for obtaining gear locating for transmission shift lever and transfer gear complete pattern switching
Information；
Whether step 105, the information of the gear according to locating for transmission shift lever and transfer gear complete pattern switching
Information judges whether to meet simultaneously: transmission shift lever is in neutral gear, and transfer gear completes pattern switching；
Step 106, when meeting simultaneously, transmission shift lever is in neutral gear, transfer gear completes the two conditions of pattern switching
When, make speed changer to transfer gear output torque.
For example, so that transfer gear cuts 4L mode to illustrate the detailed process of the embodiment of the present invention: user, which issues, to be made
Transfer gear cuts the request of 4L mode, and transmission shift lever is cut neutral gear；Transfer gear electronic control unit (Torque On
Demand, TOD) request for making transfer gear incision 4L mode that user issues is received, and transfer gear is cut to transfer gear transmission
User's request is cutting the information of transfer gear incision 4L mode and transfer gear by the instruction of 4L mode, transfer gear electronic control unit
The information of 4L mode is sent to speed changer electronic control unit (Transmission Control Unit, TCU)；The automatically controlled list of speed changer
Member, which receives user's request that transfer gear electronic control unit is sent, makes the information of transfer gear incision 4L mode and transfer gear cut 4L
The information of mode, and obtain the information of gear locating for transmission shift lever；Speed changer electronic control unit judges according to above- mentioned information
Whether meet simultaneously: transmission shift lever is in neutral gear and user's request makes transfer gear incision 4L mode and transfer gear is being cut
Enter 4L mode, if it is judged that be it is yes, speed changer electronic control unit to speed changer transmission forbids speed changer to transfer gear export turn round
The instruction of square makes speed changer not to transfer gear output torque even if speed changer keeps neutral position state.
After speed changer electronic control unit sends the instruction for forbidding gearbox output torque to speed changer, the inspection of transfer gear electronic control unit
The information whether transfer gear completes incision 4L mode is surveyed, and the information whether transfer gear completes incision 4L mode is passed into speed change
Device electronic control unit；Speed changer electronic control unit receives the letter whether transfer gear that transfer gear electronic control unit is sent completes incision 4L mode
Breath, and obtain the information of gear locating for transmission shift lever；Whether speed changer electronic control unit completes incision 4L according to transfer gear
The information of gear locating for the information and transmission shift lever of mode judges whether to meet simultaneously: transmission shift lever is in sky
Gear and transfer gear complete incision 4L mode, when judging result be it is yes, speed changer electronic control unit to speed changer send make speed changer to
The instruction of transfer gear output torque, at this point, can make automobile under 4L mode after transmission shift lever is cut driving gear by user
Traveling.
Above-mentioned example lists the control method for making transfer gear incision 4L mode, and transfer gear is made to cut out 4L mould if necessary
Formula, control method are similar to the transfer gear incision control method of 4L mode is made.
From the foregoing, it will be observed that in the mode switch control method of transfer gear provided in an embodiment of the present invention, when meeting speed change simultaneously
Device gear lever is in neutral gear, user's request make transfer gear carry out 4L pattern switching, transfer gear carrying out pattern switching these three
When condition, then make speed changer not to transfer gear output torque；Make speed changer not to after the instruction of transfer gear output torque, when simultaneously
Meet transmission shift lever be in neutral gear, transfer gear complete the two conditions of pattern switching when, then make speed changer defeated to transfer gear
Torque out.Therefore, make speed changer not to after transfer gear output torque, when transmission shift lever is cut out neutral gear by user, due to
Do not receive the information that pattern switching is completed in transfer gear at this time, because making the instruction of shift of transmission without sending to speed changer,
Speed changer is still within not to the state of transfer gear output torque, so that transfer gear carries out 4L mould in the state that zero torque inputs
Formula switching, the limit that the torque because passing to transfer gear without speed changer is able to bear beyond the gear in transfer gear
The case where, so as to avoid transfer gear generation from playing the generation of tooth phenomenon.
In addition, speed changer does not convey torque to transfer gear since transfer gear is during carrying out 4L pattern switching, so that
Transfer gear does not have torque input, thus transfer gear can be made to carry out 4L pattern switching under zero torque input state, makes score
Dynamic device will not influence transfer gear because there is the input of torque when carrying out 4L pattern switching and carry out 4L pattern switching, to make transfer
Device smoothly carries out 4L pattern switching；Furthermore with the lockable mechanism that connect with transmission shift lever is set in the prior art, to prevent
Only transmission shift lever cuts out neutral gear when transfer gear carries out 4L pattern switching and compares, transfer gear provided in an embodiment of the present invention
Mode switch control method no setting is required mechanical structure, thus the development difficulty and development cost of automobile can be reduced, simultaneously also
It can prevent from impacting the 4L pattern switching of transfer gear due to mechanical structure breaks down.
In the above-described embodiments, in order to further make transfer gear go on smoothly 4L pattern switching, referring to Fig. 2, ought be simultaneously
Meeting user's request makes transfer gear progress 4L pattern switching, transfer gear carry out pattern switching, transmission shift lever in sky
When keeping off these three conditions, make speed changer not to after transfer gear output torque, the mode switch control method of the transfer gear is also
Include:
Step 201, the information for obtaining gear locating for transmission shift lever, and judge whether transmission shift lever cuts out sky
Gear；
Step 202, the combination instrument assembly (Instrument when transmission shift lever cuts out neutral gear, into automobile
Panel, IP) the invalid signal of gear is sent, so that combination instrument assembly is shown image information warning and/or makes a sound warning letter
Breath；
Step 203, the information for obtaining gear locating for transmission shift lever, and judge whether transmission shift lever cuts sky
Gear；
Step 204, when transmission shift lever cut neutral gear when, to combination instrument assembly send the effective signal of gear, make
Combination instrument assembly closes image information warning and/or sound information warning.
When it is implemented, when transfer gear does not complete 4L pattern switching, when detecting that user cuts out transmission shift lever
The information of neutral gear then sends the invalid signal of gear to combination instrument assembly；Combination instrument assembly receives the invalid signal of gear
Afterwards, by showing image information warning on display panel and/or making a sound information warning by loudspeaker, remind user that will become
Fast device gear lever cuts neutral gear again；When the information for detecting user for transmission shift lever and cutting again neutral gear, Xiang Zuhe instrument
Table assembly send the effective signal of gear, combination instrument assembly receive the effective signal of gear after, close image information warning and/
Or sound information warning.Image information warning may include " current gear is invalid ", also may include " transfer gear 4L pattern switching
In, N grades are please returned immediately " etc..The frequency of sound information warning can be 1Hz.
Image information warning is shown by combination instrument assembly and/or makes a sound information warning, to remind user that will become
Fast device gear lever cuts neutral gear again, can prevent from making the 4L pattern switching of transfer gear because transmission shift lever cuts out neutral gear
At influence, so that transfer gear further be made to go on smoothly 4L pattern switching.
It is noted that can only pass through display panel after combination instrument assembly receives gear invalid signal
It shows image information warning, information warning only can be made a sound by loudspeaker, can also be shown simultaneously by display panel
Image information warning makes a sound information warning by loudspeaker.Preferably, when to receive gear invalid for combination instrument assembly
After signal, while image information warning is shown by display panel, information warning is made a sound by loudspeaker.Sound warning letter
The sending of breath, not by shift of transmission due to can preventing the image information warning shown by user not to be noted display panel
Bar cuts neutral gear, to the 4L mode of transfer gear due to further prevent because of user cutting neutral gear again in time not by transmission shift lever
Switching impacts.
It is complete in transfer gear when automobile stop on road surface of the gradient greater than 6%, to be made to transfer gear progress 4L pattern switching
Before 4L pattern switching, transmission shift lever is cut out neutral gear by user, for example, transmission shift lever is cut into driving gear, this
When operated due to habituation, user may unclamp brake pedal or parking brake, thus may result in that automobile slips by slope shows
As therefore, in embodiments of the present invention, please continue to refer to Fig. 2, cutting transfer gear progress 4L mode when meeting user's request simultaneously
It changes, when transfer gear is carrying out pattern switching, transmission shift lever is in these three conditions of neutral gear, makes speed changer not to transfer gear
After output torque, the mode switch control method of the transfer gear further include:
Step 301, the information for obtaining gear locating for transmission shift lever, and judge whether transmission shift lever cuts out sky
Gear；
Step 302, when transmission shift lever cuts out neutral gear, to the body electronics systems stabilisation (Electronic of automobile
Stability Program, ESP) the invalid signal of gear is sent, so that body electronics systems stabilisation is obtained road surface locating for automobile
The gradient and judge whether the gradient on road surface locating for automobile is more than or equal to 6%；
When step 303, the gradient on the road surface locating for the automobile are more than or equal to 6%, body electronics systems stabilisation is made to execute guarantor
Compacting is dynamic；
Step 304, the information for obtaining gear locating for transmission shift lever, and judge whether transmission shift lever cuts sky
Gear；
Step 305, when transmission shift lever cut neutral gear when, to body electronics systems stabilisation send gear effectively believe
Number, so that body electronics systems stabilisation is kept pressure maintaining braking 1s~2s backed off after random pressure maintaining braking.
When it is implemented, when detecting user for transmission shift lever and cutting out the information of neutral gear, then it is steady to body electronics
Determine system and send the invalid signal of gear, after body electronics systems stabilisation receives the invalid signal of gear, body electronics is stablized
The information of the gradient on system road surface according to locating for the automobile that Slope Transducer detects judges the slope on the road surface that automobile is presently in
Whether degree is more than or equal to 6%, if the gradient on road surface is more than or equal to 6%, body electronics systems stabilisation executes pressure maintaining braking, so that vapour
Vehicle steadily rests on road surface；When transmission shift lever is cut neutral gear under prompting of the user in combination instrument assembly, due to
Brake pedal can be stepped on or start parking brake by habituation operation, user, then send gear to body electronics systems stabilisation at this time
Effective information, after body electronics systems stabilisation receives the effective information of gear, body electronics systems stabilisation keeps pressure maintaining system
Pressure maintaining braking is exited after dynamic 1s~2s again.Detection unit for detecting the information of the gradient on road surface can be Slope Transducer,
It is also possible to yaw-rate sensor.
When automobile stop on road surface of the gradient more than or equal to 6%, to be made to transfer gear progress 4L pattern switching, the present invention
Embodiment rests in the gradient and is more than or equal to 6% with making vehicle steadily by making body electronics systems stabilisation execute pressure maintaining braking
On road surface, thus can prevent because transfer gear complete 4L pattern switching before user by transmission shift lever cut out neutral gear and pine
It opens brake pedal or parking brake and leads to automobile there is a phenomenon where slip by slope.
In addition, user is by transmission shift lever switchback neutral gear, and after brake pedal or starting parking brake, due to automobile
Braking system needs certain response time, thus to body electronics systems stabilisation send the effective signal of gear after, make
Body electronics systems stabilisation exits before pressure maintaining braking, so that body electronics systems stabilisation is kept pressure maintaining braking 1s~2s, can give
Braking system is given there are the sufficient response time, prevents from causing automobile to be sent out because body electronics stability series exit pressure maintaining braking suddenly
Raw the phenomenon that slipping by slope, to improve the travel safety of automobile.
It is worth noting that in the above-described embodiments, before transfer gear completes 4L pattern switching, when detecting that user will
After transmission shift lever cuts out neutral gear, while the invalid letter of gear is sent to combination instrument assembly and body electronics systems stabilisation
Breath makes combination instrument assembly show image information warning and makes a sound information warning, makes body electronics systems stabilisation in the gradient
Pressure maintaining braking is executed on road surface more than or equal to 6%.To remind user that transmission shift lever is cut neutral gear again, and prevent vapour
There is a phenomenon where slip by slope on road surface of the gradient more than or equal to 6% for vehicle；When detecting that user cuts transmission shift lever again
After neutral gear, then the effective information of gear is sent to combination instrument assembly and body electronics systems stabilisation simultaneously, keep combination instrument total
At closing image information warning and sound information warning, and body electronics systems stabilisation is made to exit pressure maintaining braking.Respectively to combination
When instrument assembly and body electronics systems stabilisation send that gear is invalid or gear effective information, it can be gear is invalid or shelves
The effective information in position is transmitted directly to combination instrument assembly and body electronics systems stabilisation respectively, is also possible to by controlling general ability
Domain network (Controller Area Network, CAN network) is invalid by gear or the effective information of gear is sent respectively to group
Close instrument assembly and body electronics systems stabilisation, i.e., it is gear is invalid or the effective information of gear is broadcasted, combination instrument assembly and
Body electronics systems stabilisation distinguishes that image processor gear is invalid or the effective information of gear.
In the above-described embodiments, when the gradient on the road surface locating for the automobile is more than or equal to 6%, make body electronics systems stabilisation
Before executing pressure maintaining braking, body electronics systems stabilisation is made to obtain the electronic parking control system (Electrical of automobile
Parking Brake, EPB) state, and judge whether electronic parking control system is activated；Work as electronic parking control system
When being activated, body electronics systems stabilisation is made not execute pressure maintaining braking.For example, body electronics systems stabilisation is executing pressure maintaining
Before braking, body electronics systems stabilisation obtains the state of electronic parking control system first, and judges electronic parking control system
Whether system is activated, if electronic parking control system is activated, i.e., automobile has been braked, thus showing of will not slipping by slope of automobile
As then body electronics systems stabilisation need not execute pressure maintaining braking.Electronic parking control system is the mechanical parking brake of electronization, can be with
For electronics parking brake or automatic parking system, for having for the automobile of mechanical parking brake, when body electronics systems stabilisation judges
Learn that mechanical parking brake is pulled up, i.e., parking brake starts, then body electronics systems stabilisation does not execute pressure maintaining braking.
In the above-described embodiments, when the gradient on the road surface locating for the automobile is more than or equal to 6%, make body electronics systems stabilisation
Before executing pressure maintaining braking, body electronics systems stabilisation is set to obtain the state of the brake pedal of automobile, and judge that brake pedal is
It is no to be operated；When brake pedal is operated, body electronics systems stabilisation is made not execute pressure maintaining braking.For example, vehicle body electricity
For sub- systems stabilisation before executing pressure maintaining braking, body electronics systems stabilisation obtains the state of brake pedal first, and judges to make
Whether dynamic pedal is operated, if brake pedal is operated, i.e., automobile has been braked, thus automobile will not slip by slope phenomenon, vehicle
Body electric stabilizing system need not then execute pressure maintaining braking.
For body electronics systems stabilisation before executing pressure maintaining braking, body electronics systems stabilisation can first obtain electronic parking
The state of control system, and judge whether electronic parking control system is activated, body electronics systems stabilisation can also be obtained first
The state of brake pedal, and judge whether brake pedal is operated.
It is worth pointing out to be, when the gradient on the road surface locating for the automobile is more than or equal to 6%, holds body electronics systems stabilisation
After row pressure maintaining braking, and body electronics systems stabilisation does not receive the effective signal of gear of speed changer electronic control unit transmission,
So that body electronics systems stabilisation is obtained the state of brake pedal, and judges whether brake pedal is operated；When brake pedal quilt
When stepping on, i.e., automobile is braked, then body electronics systems stabilisation is made to exit pressure maintaining braking.
Referring to Fig. 3, the embodiment of the present invention also provides a kind of mode transition controller of transfer gear, comprising:
Module 10 is obtained, makes whether transfer gear carries out the information of pattern switching, transfer gear for obtaining user's request
The information of gear locating for the information and transmission shift lever of progress pattern switching；And whether transfer gear completes pattern switching
Information；
Control module 20, the letter for making transfer gear carry out pattern switching according to user's request that module 10 obtains is obtained
Breath, transfer gear whether carrying out pattern switching information and transmission shift lever locating for the information of gear judge whether
Meet simultaneously: user's request makes transfer gear carry out 4L pattern switching, and transfer gear is carrying out pattern switching, and shift of transmission
Bar is in neutral gear；And
Transfer gear progress 4L pattern switching, transfer gear is set to carry out pattern switching, speed change when meeting user's request simultaneously
When device gear lever is in neutral gear, make speed changer not to transfer gear output torque；And
Whether mould is completed according to the information and transfer gear that obtain gear locating for the transmission shift lever that module 10 obtains
The information of formula switching judges whether to meet simultaneously: transmission shift lever is in neutral gear, and transfer gear completes pattern switching；And
When simultaneously meet transmission shift lever be in neutral gear, transfer gear completion pattern switching when, make speed changer to transfer gear
Output torque.
Using the mode transition controller of above-mentioned transfer gear, 4L mode initiatively can be carried out in transfer gear to speed changer
State when switching is controlled, thus can prevent from carrying out gear shift operation when transfer gear carries out 4L pattern switching because of speed changer
And make speed changer to transfer gear output torque, to prevent from being greater than in transfer gear because of speed changer to the torque that transfer gear exports
The limit that gear is able to bear and lead to transfer gear there is a phenomenon where beat tooth.
Preferably, in the mode transition controller of above-mentioned transfer gear, when simultaneously meet user request make transfer gear into
When row 4L pattern switching, transfer gear are carrying out pattern switching, transmission shift lever is in these three conditions of neutral gear, make speed changer
Not to after transfer gear output torque, control module 20 is also used to according to obtaining locating for the transmission shift lever that module 10 obtains
The information of gear judges whether transmission shift lever cuts out neutral gear；And
When transmission shift lever cuts out neutral gear, the combination instrument assembly into automobile sends the invalid signal of gear, makes
Combination instrument assembly shows image information warning and/or makes a sound information warning；And
Whether transmission shift lever is judged according to the information for obtaining gear locating for the transmission shift lever that module 10 obtains
Cut neutral gear；And
When transmission shift lever incision neutral gear, the effective signal of gear is sent to combination instrument assembly, keeps combination instrument total
At closing image information warning and/or sound information warning.
Preferably, it is carrying out mode and is cutting when meeting user's request simultaneously transfer gear is made to carry out 4L pattern switching, transfer gear
It changes, when transmission shift lever is in these three conditions of neutral gear, makes speed changer not to after transfer gear output torque, control module 20
It is also used to judge whether transmission shift lever is cut according to the information for obtaining gear locating for the transmission shift lever that module 10 obtains
Neutral gear out；And
When transmission shift lever cuts out neutral gear, the invalid signal of gear is sent to the body electronics systems stabilisation of automobile,
So that body electronics systems stabilisation is obtained the gradient on road surface locating for automobile and judges whether the gradient on road surface locating for automobile is greater than
Equal to 6%；And
When the gradient on the road surface locating for the automobile is more than or equal to 6%, body electronics systems stabilisation is made to execute pressure maintaining braking；And
Whether transmission shift lever is judged according to the information for obtaining gear locating for the transmission shift lever that module 10 obtains
Cut neutral gear；And
When transmission shift lever cuts neutral gear, the effective signal of gear is sent to body electronics systems stabilisation, makes vehicle body
Electric stabilizing system keeps pressure maintaining braking 1s~2s backed off after random pressure maintaining braking.
The method that above-mentioned offer may be implemented in the mode transition controller of transfer gear provided in an embodiment of the present invention is implemented
Example, concrete function realize the explanation referred in embodiment of the method, and details are not described herein.
Referring to Fig. 4, the embodiment of the present invention additionally provides a kind of mode switching control system of transfer gear simultaneously, comprising:
Transfer gear electronic control unit 40 makes the information of transfer gear progress pattern switching, transfer gear be for obtaining user's request
Whether the no information for carrying out pattern switching and transfer gear complete the information of pattern switching；
Transmission shift lever point valve 50, for obtaining the information of gear locating for transmission shift lever；
Speed changer electronic control unit 30 connects with transfer gear electronic control unit 40 and 50 signal of transmission shift lever point valve respectively
It connects, for requesting the letter for making the information of transfer gear progress pattern switching, transfer gear whether carry out pattern switching according to user
The information of gear locating for breath and transmission shift lever judges whether to meet simultaneously: user's request makes transfer gear carry out 4L mould
Formula switching, and transfer gear is carrying out pattern switching, and transmission shift lever is in neutral gear；And
Transfer gear progress 4L pattern switching, transfer gear is set to carry out pattern switching, speed change when meeting user's request simultaneously
When device gear lever is in neutral gear, make speed changer not to transfer gear output torque；And
Whether the information and transfer gear of the gear according to locating for transmission shift lever complete the information judgement of pattern switching
Whether meet simultaneously: transmission shift lever is in neutral gear, and transfer gear completes pattern switching；And
When simultaneously meet transmission shift lever be in neutral gear, transfer gear completion pattern switching when, make speed changer to transfer gear
Output torque.
Using the mode switching control system of above-mentioned transfer gear, 4L mode initiatively can be carried out in transfer gear to speed changer
State when switching is controlled, thus can prevent from carrying out gear shift operation when transfer gear carries out 4L pattern switching because of speed changer
And make speed changer to transfer gear output torque, to prevent from being greater than in transfer gear because of speed changer to the torque that transfer gear exports
The limit that gear is able to bear and lead to transfer gear there is a phenomenon where beat tooth.
Preferably, the mode switching control system of transfer gear provided by the above embodiment further includes combination instrument assembly 60,
Combination instrument assembly 60 is connect with transmission control unit signal；
Transfer gear progress 4L pattern switching, transfer gear is set to carry out pattern switching, speed change when meeting user's request simultaneously
When device gear lever is in these three conditions of neutral gear, speed changer electronic control unit 30 makes speed changer not to after transfer gear output torque,
The information of the gear according to locating for transmission shift lever of speed changer electronic control unit 30 judges whether transmission shift lever cuts out neutral gear；
When transmission shift lever cuts out neutral gear, speed changer electronic control unit 30 is invalid to the transmission gear of combination instrument assembly 60
Signal, so that combination instrument assembly 60 is shown image information warning and/or is made a sound information warning；
Whether the information of the gear according to locating for transmission shift lever of speed changer electronic control unit 30 judges transmission shift lever
Cut neutral gear；
When transmission shift lever cuts neutral gear, speed changer electronic control unit 30 is effective to the transmission gear of combination instrument assembly 60
Signal makes combination instrument assembly 60 close image information warning and/or sound information warning.
Preferably, the mode switching control system of above-mentioned transfer gear further includes body electronics systems stabilisation 70, body electronics
Systems stabilisation 70 is connect with 30 signal of speed changer electronic control unit；
Transfer gear progress 4L pattern switching, transfer gear is set to carry out pattern switching, speed change when meeting user's request simultaneously
When device gear lever is in these three conditions of neutral gear, speed changer electronic control unit 30 makes speed changer not to after transfer gear output torque,
The information of the gear according to locating for transmission shift lever of speed changer electronic control unit 30 judges whether transmission shift lever cuts out neutral gear；
When transmission shift lever cuts out neutral gear, speed changer electronic control unit 30 sends gear to body electronics systems stabilisation 70
Invalid signal makes body electronics systems stabilisation 70 obtain the gradient on road surface locating for automobile and judges road surface locating for automobile
Whether the gradient is more than or equal to 6%；
When the gradient on the road surface locating for the automobile is more than or equal to 6%, body electronics systems stabilisation 70 executes pressure maintaining braking；
Whether the information of the gear according to locating for transmission shift lever of speed changer electronic control unit 30 judges transmission shift lever
Cut neutral gear；
When transmission shift lever cuts neutral gear, speed changer electronic control unit 30 sends gear to body electronics systems stabilisation 70
Effective signal, body electronics systems stabilisation 70 keep pressure maintaining braking 1s~2s backed off after random pressure maintaining braking.
The method that above-mentioned offer may be implemented in the mode switching control system of transfer gear provided in an embodiment of the present invention is implemented
Example, concrete function realize the explanation referred in embodiment of the method, and details are not described herein.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of mode switch control method of transfer gear characterized by comprising
Obtain the letter that user's request makes the information of transfer gear progress pattern switching, the transfer gear whether carry out pattern switching
The information of gear locating for breath and transmission shift lever；
Make whether the information of the transfer gear progress pattern switching, the transfer gear are carrying out pattern switching according to user's request
Information and the transmission shift lever locating for the information of gear judge whether to meet simultaneously: user's request makes the transfer
Device carries out low speed 4 wheel driven pattern switching, and the transfer gear is carrying out pattern switching, and the transmission shift lever is in sky
Gear；
The transfer gear progress low speed 4 wheel driven pattern switching, the transfer gear is set to carry out mode when meeting user's request simultaneously
When switching, the transmission shift lever are in these three conditions of neutral gear, make the speed changer not to the transfer gear output torque；
The information of gear locating for the transmission shift lever is obtained, and judges whether the transmission shift lever cuts out neutral gear；
When the transmission shift lever cuts out neutral gear, the invalid signal of gear is sent to the body electronics systems stabilisation of automobile, makes institute
Body electronics systems stabilisation is stated to obtain the gradient on road surface locating for automobile and judge whether the gradient on road surface locating for automobile is greater than
Equal to 6%；When the gradient on the road surface locating for the automobile is more than or equal to 6%, brake the body electronics systems stabilisation row pressure maintaining；
The information of gear locating for the transmission shift lever is obtained, and judges whether the transmission shift lever cuts neutral gear；
When the transmission shift lever cuts neutral gear, Xiang Suoshu body electronics systems stabilisation sends the effective signal of gear, makes described
Body electronics systems stabilisation keeps pressure maintaining braking 1s~2s backed off after random pressure maintaining braking；
Whether the information and the transfer gear that obtain gear locating for the transmission shift lever complete the letter of pattern switching
Breath；
The information of pattern switching whether is completed according to the information of gear locating for the transmission shift lever and the transfer gear
Judge whether to meet simultaneously: the transmission shift lever is in neutral gear, and the transfer gear completes pattern switching；
When simultaneously meet the transmission shift lever be in neutral gear, the transfer gear completion the two conditions of pattern switching when, make
The speed changer is to the transfer gear output torque.
2. the mode switch control method of transfer gear according to claim 1, which is characterized in that asked when meeting user simultaneously
Asking makes the transfer gear progress low speed 4 wheel driven pattern switching, the transfer gear carry out pattern switching, the shift of transmission
When bar is in these three conditions of neutral gear, make the speed changer not to after the transfer gear output torque, the mould of the transfer gear
Formula method for handover control further include:
The information of gear locating for the transmission shift lever is obtained, and judges whether the transmission shift lever cuts out neutral gear；
When the transmission shift lever cuts out neutral gear, the combination instrument assembly into automobile sends the invalid signal of gear, makes
The combination instrument assembly shows image information warning and/or makes a sound information warning；
The information of gear locating for the transmission shift lever is obtained, and judges whether the transmission shift lever cuts neutral gear；
When the transmission shift lever cuts neutral gear, Xiang Suoshu combination instrument assembly sends the effective signal of gear, makes described
Combination instrument assembly closes image information warning and/or sound information warning.
3. the mode switch control method of transfer gear according to claim 1, which is characterized in that
When the gradient on the road surface locating for the automobile is more than or equal to 6%, so that the body electronics systems stabilisation is executed pressure maintaining and brake it
Before, so that the body electronics systems stabilisation is obtained the state of the electronic parking control system of automobile, and judge the electronic parking
Whether control system is activated；When the electronic parking control system is activated, hold the body electronics systems stabilisation not
Row pressure maintaining braking；
When the gradient on the road surface locating for the automobile is more than or equal to 6%, so that the body electronics systems stabilisation is executed pressure maintaining and brake it
Before, so that the body electronics systems stabilisation is obtained the state of the brake pedal of automobile, and judge whether the brake pedal is stepped on
Under；When the brake pedal is operated, the body electronics systems stabilisation is made not execute pressure maintaining braking.
4. a kind of mode transition controller of transfer gear characterized by comprising
It obtains module (10), makes whether just transfer gear carries out the information of pattern switching, the transfer gear for obtaining user's request
The information of the gear locating for the information and transmission shift lever for carrying out pattern switching；And whether the transfer gear completes mould
The information of formula switching；
Control module (20), user's request for being obtained according to acquisition module (10) cut the transfer gear progress mode
The information changed, the transfer gear whether carrying out pattern switching information and the transmission shift lever locating for gear
Information judge whether to meet simultaneously: user's request makes the transfer gear carry out low speed 4 wheel driven pattern switching, and the transfer gear
Pattern switching is being carried out, and the transmission shift lever is in neutral gear；And
The transfer gear progress low speed 4 wheel driven pattern switching, the transfer gear is set to carry out mode when meeting user's request simultaneously
When switching, the transmission shift lever are in neutral gear, make speed changer not to the transfer gear output torque；
Shelves locating for the transmission shift lever that the control module (20) is also used to be obtained according to acquisition module (10)
The information of position judges whether the transmission shift lever cuts out neutral gear；And
When the transmission shift lever cuts out neutral gear, the invalid signal of gear is sent to the body electronics systems stabilisation of automobile,
So that the body electronics systems stabilisation is obtained the gradient on road surface locating for automobile and judge road surface locating for automobile the gradient whether
More than or equal to 6%；And
When the gradient on the road surface locating for the automobile is more than or equal to 6%, brake the body electronics systems stabilisation row pressure maintaining；And
The information of gear locating for the transmission shift lever obtained according to acquisition module (10) judges the speed changer
Whether gear lever cuts neutral gear；And
When the transmission shift lever cuts neutral gear, Xiang Suoshu body electronics systems stabilisation sends the effective signal of gear, makes
The body electronics systems stabilisation keeps pressure maintaining braking 1s~2s backed off after random pressure maintaining braking；And
The information of gear locating for the transmission shift lever obtained according to acquisition module (10) and the transfer gear
The information for whether completing pattern switching judges whether to meet simultaneously: the transmission shift lever is in neutral gear, and the transfer gear
Complete pattern switching；And
When simultaneously meet the transmission shift lever be in neutral gear, the transfer gear completion pattern switching when, make the speed changer
To the transfer gear output torque.
5. the mode transition controller of transfer gear according to claim 4, which is characterized in that
The transfer gear progress low speed 4 wheel driven pattern switching, the transfer gear is set to carry out mode when meeting user's request simultaneously
When switching, the transmission shift lever are in these three conditions of neutral gear, make the speed changer not to the transfer gear output torque
Later, shelves locating for the transmission shift lever that the control module (20) is also used to be obtained according to acquisition module (10)
The information of position judges whether the transmission shift lever cuts out neutral gear；And
When the transmission shift lever cuts out neutral gear, the combination instrument assembly into automobile sends the invalid signal of gear, makes
The combination instrument assembly shows image information warning and/or makes a sound information warning；And
The information of gear locating for the transmission shift lever obtained according to acquisition module (10) judges the speed changer
Whether gear lever cuts neutral gear；And
When the transmission shift lever cuts neutral gear, Xiang Suoshu combination instrument assembly sends the effective signal of gear, makes described group
It closes instrument assembly and closes image information warning and/or sound information warning.
6. a kind of mode switching control system of transfer gear characterized by comprising
Transfer gear electronic control unit (40) makes transfer gear carry out the information of pattern switching, the transfer gear for obtaining user's request
Whether the information and the transfer gear that are whether carrying out pattern switching complete the information of pattern switching；
Transmission shift lever point valve (50), for obtaining the information of gear locating for transmission shift lever；
Speed changer electronic control unit (30), respectively with the transfer gear electronic control unit (40) and the transmission shift lever point valve
(50) signal connects, for making whether just the transfer gear carries out the information of pattern switching, the transfer gear according to user's request
The information of the gear locating for the information and transmission shift lever for carrying out pattern switching judges whether to meet simultaneously: user asks
Asking makes the transfer gear carry out low speed 4 wheel driven pattern switching, and the transfer gear is carrying out pattern switching, and the speed changer
Gear lever is in neutral gear；And
The transfer gear progress low speed 4 wheel driven pattern switching, the transfer gear is set to carry out mode when meeting user's request simultaneously
When switching, the transmission shift lever are in neutral gear, make speed changer not to the transfer gear output torque；And
The information of pattern switching whether is completed according to the information of gear locating for the transmission shift lever and the transfer gear
Judge whether to meet simultaneously: the transmission shift lever is in neutral gear, and the transfer gear completes pattern switching；And
When simultaneously meet the transmission shift lever be in neutral gear, the transfer gear completion pattern switching when, make the speed changer
To the transfer gear output torque；
The mode switching control system of the transfer gear further includes body electronics systems stabilisation (70), the body electronics stability series
System (70) is connect with speed changer electronic control unit (30) signal；
The transfer gear progress low speed 4 wheel driven pattern switching, the transfer gear is set to carry out mode when meeting user's request simultaneously
When switching, the transmission shift lever are in these three conditions of neutral gear, the speed changer electronic control unit (30) makes the speed changer
Not to after the transfer gear output torque, speed changer electronic control unit (30) shelves according to locating for the transmission shift lever
The information of position judges whether the transmission shift lever cuts out neutral gear；
When the transmission shift lever cuts out neutral gear, speed changer electronic control unit (30) the Xiang Suoshu body electronics systems stabilisation
(70) the invalid signal of gear is sent, the body electronics systems stabilisation (70) is made to obtain the gradient on road surface locating for automobile and is sentenced
Whether the gradient on road surface locating for vehicle of cutting steam is more than or equal to 6%；
When the gradient on the road surface locating for the automobile is more than or equal to 6%, the body electronics systems stabilisation (70) executes pressure maintaining braking；
The information of speed changer electronic control unit (30) gear according to locating for the transmission shift lever judges the speed changer
Whether gear lever cuts neutral gear；
When the transmission shift lever cuts neutral gear, speed changer electronic control unit (30) the Xiang Suoshu body electronics systems stabilisation
(70) the effective signal of gear is sent, the body electronics systems stabilisation (70) keeps pressure maintaining to brake 1s~2s backed off after random pressure maintaining system
It is dynamic.
7. the mode switching control system of transfer gear according to claim 6, which is characterized in that the mode of the transfer gear
Handover control system further includes combination instrument assembly (60), the combination instrument assembly (60) and the speed changer electronic control unit
(30) signal connects；
The transfer gear progress low speed 4 wheel driven pattern switching, the transfer gear is set to carry out mode when meeting user's request simultaneously
When switching, the transmission shift lever are in these three conditions of neutral gear, the speed changer electronic control unit (30) makes the speed changer
Not to after the transfer gear output torque, speed changer electronic control unit (30) shelves according to locating for the transmission shift lever
The information of position judges whether the transmission shift lever cuts out neutral gear；
When the transmission shift lever cuts out neutral gear, speed changer electronic control unit (30) the Xiang Suoshu combination instrument assembly (60)
The invalid signal of gear is sent, so that the combination instrument assembly (60) is shown image information warning and/or makes a sound warning letter
Breath；
The information of speed changer electronic control unit (30) gear according to locating for the transmission shift lever judges the speed changer
Whether gear lever cuts neutral gear；
When the transmission shift lever cuts neutral gear, speed changer electronic control unit (30) Xiang Suoshu combination instrument assembly (60) hair
It send gear effective signal, the combination instrument assembly (60) is made to close image information warning and/or sound information warning.
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| CN107725757B (en) * | 2017-10-10 | 2019-05-07 | 安徽江淮汽车集团股份有限公司 | A kind of transfer gear shift control system |
| CN109367534B (en) * | 2018-10-15 | 2020-12-08 | 北京汽车集团越野车有限公司 | Electronic parking control method and device |
| CN113819233A (en) * | 2020-12-03 | 2021-12-21 | 长城汽车股份有限公司 | Automatic transmission of vehicle, control method and device of transfer case |
| CN114688241B (en) * | 2020-12-28 | 2023-07-18 | 长城汽车股份有限公司 | Control method and device and vehicle |
| CN114562557B (en) * | 2021-03-02 | 2024-05-14 | 长城汽车股份有限公司 | Transfer case mode switching control method and system |
| CN114962624B (en) * | 2021-07-20 | 2024-08-09 | 长城汽车股份有限公司 | Transfer case control method and device, storage medium, electronic equipment and vehicle |
| CN115703466A (en) | 2021-08-09 | 2023-02-17 | 长城汽车股份有限公司 | Four-wheel drive slope-parking control method, device and system and vehicle |
| CN115046001B (en) * | 2021-09-22 | 2023-09-15 | 长城汽车股份有限公司 | Transfer case control method and device, storage medium and vehicle |
| CN114087359B (en) * | 2021-09-29 | 2024-01-09 | 岚图汽车科技有限公司 | Device and method for switching modes of timely four-wheel drive system of automobile |
| CN115031017B (en) * | 2021-11-19 | 2023-10-27 | 长城汽车股份有限公司 | Transfer case 4L mode switching control method and device and vehicle |
| CN114954282A (en) * | 2022-05-12 | 2022-08-30 | 三一汽车制造有限公司 | Power switching control method, device and system and working machine |
| CN115199740B (en) * | 2022-05-20 | 2023-06-16 | 北京博格华纳汽车传动器有限公司 | Automatic switching method, device, equipment and medium for driving mode |
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| CN1333146A (en) * | 2000-08-08 | 2002-01-30 | 易通公司 | Automatic transfer case control for hand shifting transmission system |
| CN1421337A (en) * | 2001-11-28 | 2003-06-04 | 现代自动车株式会社 | Gearshift of automatic transfer mechanism |
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| CN106402371A (en) | 2017-02-15 |
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