CN209257867U - Double-motor double planetary row multi-mode electromechanical coupling transmission device - Google Patents

Abstract

The utility model discloses a kind of double electric machine double row planetary gear multi-mode electromechanical coupling transmission devices, CHS system schema remote with section's power compared to Toyota's THS system schema, the utility model can both realize that input power shunted by the open or close of clutch C1, it can realize that hybrid power shunts again, it gathers around there are two types of mixed dynamic eCVT mode, can get higher transmission efficiency by two kinds of mixed dynamic pattern switchings.It is compared with general Voltec 2 generation organization plan, the utility model more a pure electric vehicle gear, pure electric vehicles 2 keep off smaller speed ratio and can reduce the peak speed of motor E1 or increase the max. speed under the pure electricity traveling of vehicle.In addition, two motors are arranged in planetary gear set the same side, structure is more compact.

Description

Double-motor double planetary row multi-mode electromechanical coupling transmission device

technical field

The utility model relates to an automobile power transmission device, in particular to a multi-mode electromechanical coupling transmission device with double motors and planetary rows.

Background technique

The technical solution described in the patent number CN 101992679 B is different from the solution of the utility model in the connection mode and mode type of the planetary row components. Patent No. CN 101992679 B can only realize compound power splitting, but the utility model scheme can also realize input power splitting in addition to compound power splitting.

Utility model content

The purpose of the utility model is to provide a dual-motor dual-planet row multi-mode electromechanical coupling transmission device to solve the above-mentioned technical problems existing in the prior art.

In the dual-motor dual-planet row multi-mode electromechanical coupling transmission device provided by the utility model, the engine is connected to the first rotating shaft, the first planetary row sun gear is located on the third rotating shaft, the planet carrier is located on the first rotating shaft, and the ring gear is located on the second rotating shaft. On the four rotating shafts, the second planetary row sun gear is located on the sixth rotating shaft, the planetary carrier is located on the fourth rotating shaft, the ring gear is located on the fifth rotating shaft, the first brake connects the first rotating shaft and the box, and the second brake connecting the sixth rotating shaft to the box body, a first clutch connecting the sixth rotating shaft to the third rotating shaft, a first motor connected to the fifth rotating shaft, a second motor connected to the third rotating shaft, The pinion gear of the first fixed axis gear set is located on the fourth rotating shaft, the large gear is located on the seventh rotating shaft, and transmits power from the input shaft system to the parallel shaft system, and the pinion gear of the second fixed axis gear set is located on the seventh rotating shaft On the top, the large gear is located on the second rotating shaft, which transmits the power from the parallel shaft system to the output shaft system, and the differential is located on the second rotating shaft.

Further, the first motor is placed on a parallel shaft through a fixed shaft gear set.

Further, the second motor is placed on a parallel shaft through a fixed shaft gear set.

Further, a third brake is also included, and the third brake connects the fifth rotating shaft and the box body.

Further, a second clutch is further included, and the second clutch connects the first rotating shaft and the third rotating shaft.

Further, it also includes a third clutch, the third clutch and the second clutch form a dual clutch module, the third clutch interrupts the first rotating shaft, and the interrupting rotating shaft is connected to the engine side as the first A rotating shaft that connects the planetary carrier on the first rotating shaft and the first brake side is an eighth rotating shaft, and the third clutch connects the first rotating shaft and the eighth rotating shaft.

The dual-motor dual-planet row multi-mode electromechanical coupling transmission device provided by the utility model has the following advantages:

Compared with Toyota THS system scheme (input power split) and Corun CHS system scheme (compound power split), the utility model can realize both input power split and compound power split by opening or closing the clutch C1, namely There are two hybrid eCVT modes, and higher transmission efficiency can be obtained by switching between the two hybrid modes.

Compared with the general Voltec 2nd generation structure scheme, the utility model has an additional pure electric gear, and the smaller speed ratio of the pure electric second gear can reduce the peak speed of the motor E1 or increase the maximum speed of the vehicle under pure electric driving. In addition, the two motors are arranged on the same side of the planetary gear set, so the structure is more compact.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is a schematic structural diagram of a multi-mode electromechanical coupling transmission device with dual motors and dual planetary rows provided by Embodiment 1 of the present utility model.

Fig. 2 is the longitudinal layout of the dual-motor, dual-planetary row multi-mode electromechanical coupling transmission device provided by Embodiment 1 of the utility model.

Fig. 3 is a multi-mode electromechanical coupling transmission device with dual motors and planetary rows provided by the second embodiment of the utility model.

Fig. 4 is a multi-mode electromechanical coupling transmission device with dual motors and planetary rows provided by the third embodiment of the utility model.

Fig. 5 is a multi-mode electromechanical coupling transmission device with dual motors and planetary rows provided in Embodiment 4 of the present utility model.

Fig. 6 is the multi-mode electromechanical coupling transmission device provided by the fifth embodiment of the utility model with two motors and two planetary rows.

Fig. 7 is a multi-mode electromechanical coupling transmission device with dual motors and planetary rows provided in Embodiment 6 of the present utility model.

Fig. 8 is the scheme of the pure electric 3-speed transmission mechanism provided by Embodiment 7 of the present utility model.

Reference signs: 1-first rotating shaft; 3-third rotating shaft; 4-fourth rotating shaft; 6-sixth rotating shaft; 5-fifth rotating shaft; B1-first brake; B2-second brake; C1-first Clutch; E1-first motor; E2-second motor; 7-seventh rotating shaft; 2-second rotating shaft; B3-third brake; C2-second clutch; C3-third clutch; 8-eighth rotating shaft.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Embodiment one:

Figure 1 is a schematic structural view of the dual-motor dual planetary row multi-mode electromechanical coupling transmission device provided by Embodiment 1 of the utility model; as shown in Figure 1, the engine is connected to the first rotating shaft 1, and the first planetary row sun gear is located on the third rotating shaft 3, the planet carrier is located on the first rotating shaft 1, the ring gear is located on the fourth rotating shaft 4, the second planetary sun gear is located on the sixth rotating shaft 6, the planet carrier is located on the fourth rotating shaft 4, and the ring gear is located on On the fifth rotating shaft 5, the first brake B1 connects the first rotating shaft 1 and the casing, the second brake B2 connects the sixth rotating shaft 6 and the casing, and the first clutch C1 connects the sixth rotating shaft 6 and the casing. The third rotating shaft 3, the first motor E1 is connected to the fifth rotating shaft 5, the second motor E2 is connected to the third rotating shaft 3, the pinion of the first fixed axis gear set is located on the fourth rotating shaft 4, The large gear is located on the seventh rotating shaft 7, and the power is transmitted from the input shaft system to the parallel shaft system. The pinion gear of the second fixed axis gear set is located on the seventh rotating shaft 7, and the large gear is located on the second rotating shaft 2, and the power is transmitted from the The parallel shafting is transmitted to the output shafting and the differential is located on said second rotating shaft 2 .

The dual-motor dual planetary row multi-mode electromechanical coupling transmission device of the present application can realize the following working modes.

(1) Pure electric first gear mode (EV1): the first clutch C1 is engaged, the first brake B1 is engaged for braking, and the second brake B2 is opened. The first motor E1 drives the vehicle alone or the first motor E1 and the second motor E2 jointly drive the vehicle. Engine does not run. In this mode, the reverse gear can be realized through the reverse rotation of the two motors.

(2) Pure electric 2nd gear mode (EV2): the first clutch C1 is opened, the first brake B1 is engaged for braking (when the first motor E1 and the second motor E2 are driven by dual motors) or no load (the first motor E1 alone driving), the second brake B2 is engaged. The first motor E1 drives the vehicle alone or the first motor E1 and the second motor E2 jointly drive the vehicle. Engine does not run. In this mode, the reverse gear can be realized through the reverse rotation of the two motors.

(3) Low-speed hybrid mode (HEV1): the first clutch C1 is opened, the first brake B1 is opened (the first rotating shaft 1 overruns), and the second brake B2 is engaged. The first motor E1 outputs power to drive the vehicle, and the second motor E2 generates power. The output power of the engine is divided by the first planetary gear set, part of which is transmitted to the wheel end to drive the vehicle, and part of it is transmitted to the second motor E2 to drive the second motor E2 to generate electricity, that is, the input power is divided. In this mode, the second electric motor E2 can realize stepless speed regulation for the engine, that is, this mode is eCVT mode.

(4) Fixed speed ratio mode 1 (FR): the first clutch C1 is engaged, the first brake B1 is opened (the first rotating shaft 1 overruns), and the second brake B2 is engaged. At this moment, the speed ratio between the first rotating shaft 1 and the second rotating shaft 2 connected to the engine is fixed. The rotational speed of the second electric machine E2 is 0, neither output power nor generate electricity. The output power of the engine can be used to drive the vehicle in its entirety, or part of it can be used to drive the vehicle and part of it to drive the first motor E1 to generate electricity. The first motor E1 can also be combined with the engine to jointly drive the vehicle. In the fixed speed ratio mode, the speed ratio between the first rotating shaft 1 and the fourth rotating shaft 4 is less than 1.

(5) High-speed hybrid mode (HEV2): the first clutch C1 is engaged, the first brake B1 is opened (the first rotating shaft 1 overruns), and the second brake B2 is opened. At this time, the engine, the first motor E1 and the second motor E2 can realize four-axis compound power splitting. The output power of the engine partially drives the vehicle, and partially generates power through the second motor E2. The output power of the first motor E1 drives the vehicle to run. In this mode, if the output of the battery pack and the power of the motor controller allow, the combined output power of the engine, the first motor E1 and the second motor E2 can also be used to drive the vehicle. At this time, the engine speed can be continuously and steplessly adjusted through the first electric motor E1 or the second electric motor E2, which is also the eCVT mode.

(6) Engine starting mode: the second motor E2 of the utility model solution can directly output torque to start the engine.

(7) Parking power generation mode: when the car is in the parking state, the seventh rotating shaft 7 or the fourth rotating shaft 4 of the structure is locked by the parking lock mechanism, and the second brake B2 and the first brake B1 are opened. The output power of the engine is transmitted to the second electric motor E2 through the first planetary row to generate electricity and be used for charging the battery pack. If the first clutch C1 is engaged, part of the output power of the engine can continue to be transmitted to the first motor E1 through the second planetary row, that is, the first motor E1 and the second motor E2 can simultaneously generate electricity and be used for charging the battery pack.

(8) Braking energy recovery mode: When the vehicle goes downhill or brakes, its reduced kinetic energy is transmitted to the first motor E1 through the second planetary row, and the first motor E1 outputs braking torque to generate power and supply it to the battery pack Charging; if the first clutch C1 is engaged, the second motor E2 can also combine with the first motor E1 to output braking torque to generate electricity and charge the battery pack.

Specifically, the first brake B1 is a one-way brake.

Specifically, the second brake B2 is a wet multi-plate brake.

Specifically, the first clutch C1 is a wet multi-plate clutch.

It should be noted that, in the solution of the utility model, the structural forms of the first brake B1, the second brake B2, and the first clutch C1 are not limited to the one-way brake/clutch and wet multi-plate clutch/brake referred to herein. All other forms of clutches/brakes, such as synchronizers, tooth clutches, selectable one-way clutches, etc., all belong to the protection category of the present utility model as long as they follow the connection mode between the components of the utility model.

As shown in Figure 2, the vertical arrangement form of the dual-motor dual-planetary row multi-mode electromechanical coupling transmission device provided by the first embodiment of the utility model, as long as the structure between the components of the planetary row, the dual motors and the engine of the utility model is followed Connection methods all belong to the protection category of the present utility model.

Embodiment two:

Fig. 3 is the dual-motor dual planetary row multi-mode electromechanical coupling transmission device provided by the second embodiment of the utility model. On the basis of the first embodiment and Fig. 1, the dual-motor dual planetary row multi-mode electromechanical coupling transmission provided by the second embodiment device, the first motor E1 is placed on the parallel shaft through the fixed shaft gear set.

Embodiment three:

Figure 4 shows the dual-motor, dual-planetary row, multi-mode electromechanical coupling transmission device provided by Embodiment 3 of the present utility model. On the basis of Embodiment 1 and Figure 1, the dual-motor, dual-planetary row, multi-mode electromechanical coupling transmission device provided by Embodiment 3 device, the second motor E2 is placed on the parallel shaft through the fixed shaft gear set.

Embodiment four:

Figure 5 shows the dual-motor, dual-planetary row, multi-mode electromechanical coupling transmission device provided in Embodiment 4 of the present utility model. On the basis of Embodiment 1 and Figure 1, the dual-motor, dual-planetary row, multi-mode electromechanical coupling transmission device provided in Embodiment 4 The device adds the third brake B3, connects the fifth rotating shaft 5 and the box, and adds the following working mode on the basis of the working mode of the first embodiment:

Parking power generation mode 2: the second brake B2 and the third brake B3 are engaged, the first clutch C1 is disengaged, and the first brake B1 is disengaged. In this mode, the second brake B2 and the third brake B3 engage and lock the fourth rotating shaft 4, that is, the output end is locked, and the output power of the engine can be transmitted to the second motor E2 through the first planetary row to generate electricity and be used for the battery pack Charge. This parking power generation mode does not need to use the parking lock mechanism to lock the seventh rotating shaft 7 or the fourth rotating shaft 4 .

Fixed speed ratio mode 2: the third brake B3 and the first clutch C1 are engaged, the first brake B1 is turned on, and the second brake B2 is turned on. In this mode, the rotational speed of the first electric motor E1 is 0, neither output power nor generate electricity. The output power of the engine can be used to drive the vehicle in its entirety, or partly to drive the vehicle and partly to drive the second motor E2 to generate electricity. The second motor E2 can also be combined with the engine to jointly drive the vehicle. In the fixed speed ratio mode, the speed ratio between the first rotating shaft 1 and the fourth rotating shaft 4 is greater than 1.

Embodiment five:

Figure 6 shows the dual-motor, dual-planetary row, multi-mode electromechanical coupling transmission device provided in Embodiment 5 of the present utility model. On the basis of Embodiment 1 and Figure 1, the dual-motor, dual-planetary row, multi-mode electromechanical coupling transmission device provided in Embodiment 5 For the device, the second clutch C2 is added to connect the first rotating shaft 1 and the third rotating shaft 3, and the following working mode is added on the basis of the first embodiment:

Fixed speed ratio mode 3: the second clutch C2 and the first clutch C1 are engaged, and the first brake B1 and the second brake B2 are opened. At this time, the first planetary row and the second planetary row rotate as a whole, and all components of the two planetary rows rotate at the same speed , that is, the first rotating shaft 1, the third rotating shaft 3, the fourth rotating shaft 4, the fifth rotating shaft 5, and the sixth rotating shaft 6 rotate at the same speed. At this time, the speed ratio between the first rotating shaft 1 and the fourth rotating shaft 4 is equal to 1. In this mode, the engine can directly drive the vehicle alone; it can also drive the vehicle together with the first motor E1 and the second motor E2; it can also output part of the power to the second motor E2 to generate power, and part of it can be combined with the output power of the first motor E1 Drive the vehicle together.

Fixed speed ratio mode 4: the second clutch C2 and the second brake B2 are engaged, the first clutch C1 and the second brake B2 are opened, and the first planetary row rotates as a whole, that is, the first rotating shaft 1, the third rotating shaft 3, the fourth Rotating shaft 4 rotates at the same speed. At this time, the speed ratio between the first rotating shaft 1 and the fourth rotating shaft 4 is equal to 1. The difference from the fixed speed ratio mode 3 is that the sixth rotating shaft 6 is braked by the second brake B2 with a rotational speed of 0, and the rotational speed of the first electric motor E1 (that is, the rotational speed of the fifth rotational shaft 5 ) is higher than the engine rotational speed. In this mode, the engine can directly drive the vehicle alone; it can also drive the vehicle together with the first motor E1 and the second motor E2; it can also output part of the power to the second motor E2 to generate power, and part of it can be combined with the output power of the first motor E1 Drive the vehicle together.

Embodiment six:

Figure 7 shows the dual-motor, dual-planetary row multi-mode electromechanical coupling transmission device provided in Embodiment 6 of the present utility model. On the basis of Embodiment 5 and Figure 6, the dual-motor dual-planetary row multi-mode electromechanical coupling transmission provided in Embodiment 6 The device adds a third clutch C3, the third clutch C3 and the second clutch C2 form a dual clutch module, the third clutch C3 interrupts the first rotating shaft 1, and the interrupting rotating shaft is connected to the engine side as The first rotating shaft 1, connecting the planet carrier on the first rotating shaft 1 and the side of the first brake B1 is the eighth rotating shaft 8, and the third clutch C3 connects the first rotating shaft 1 and the second rotating shaft 8 Eight reels 8.

On the basis of the working mode of Embodiment 5, the following working modes are added:

Series hybrid mode: the second clutch C2 and the second brake B2 are engaged, and the first brake B1, the first clutch C1 and the third clutch C3 are disengaged. At this moment, all the output power of the engine is used to generate electricity for the second electric motor E2, and the output power of the first electric motor E1 drives the vehicle to run. The engine speed torque is decoupled from the output speed torque.

Embodiment seven:

Figure 8 is the pure electric 3-speed transmission mechanism scheme provided by Embodiment 7 of the present utility model. Based on the connection method between the first planetary row and the second planetary row in Embodiment 1, the scheme of Embodiment 1 can be expanded into a pure electric 3-speed transmission mechanism. Gearbox scheme. As shown in Figure 8, the first planetary planetary carrier is located on the first rotating shaft 1, connected to the drive motor, and is the power input end; the first planetary gear ring gear is located on the fourth rotating shaft 4, and the power is output from the fourth rotating shaft 4 to the parallel Shafting up to the wheels; the first planetary sun gear is located on the third shaft 3. The second planetary sun gear is also located on the third rotating shaft 3 ; the second planetary planetary carrier is located on the fourth rotating shaft 4 ; the second planetary ring gear is located on the fifth rotating shaft 5 . The first brake B1 connects the fifth rotating shaft 5 and the casing, and the second brake B2 connects the third rotating shaft 3 and the casing. The first clutch C1 connects the fourth rotating shaft 4 and the third rotating shaft 3. The first brake B1 is engaged in the first gear, and the first clutch C1 and the second brake B2 are opened; the first clutch C1 is engaged in the second gear, and the first brake B1 and the second brake are engaged. B2 is open; the third gear second brake B2 is engaged, the first brake B1 and the first clutch C1 are open.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (6)

1. a kind of double electric machine double row planetary gear multi-mode electromechanical coupling transmission device, which is characterized in that engine and first rotating shaft phase Even, the first planet row sun gear is located in third shaft, and planet carrier is located in the first rotating shaft, and gear ring is located at the 4th shaft On, the second planet row sun gear is located in the 6th shaft, and planet carrier is located in the 4th shaft, and gear ring is located at the 5th shaft On, the first brake connects the first rotating shaft and cabinet, and second brake connects the 6th shaft and the cabinet, and first Clutch connects the 6th shaft and the third shaft, and first motor is connected with the 5th shaft, the second motor and institute It states third shaft to be connected, the first fixed axis gear group pinion gear is located in the 4th shaft, and gear wheel is located in the 7th shaft, will Power is transferred to parallel axis system by input shafting, and the second fixed axis gear group pinion gear is located in the 7th shaft, gear wheel position In in the second shaft, power is transferred to output shafting by parallel axis system, differential mechanism is located in second shaft.

2. double electric machine double row planetary gear multi-mode electromechanical coupling transmission device according to claim 1, which is characterized in that described First motor is placed in parallel axes by fixed axis gear group.

3. double electric machine double row planetary gear multi-mode electromechanical coupling transmission device according to claim 1, which is characterized in that described Second motor is placed in parallel axes by fixed axis gear group.

4. double electric machine double row planetary gear multi-mode electromechanical coupling transmission device according to claim 1, which is characterized in that also wrap Third brake is included, the third brake connects the 5th shaft and the cabinet.

5. double electric machine double row planetary gear multi-mode electromechanical coupling transmission device according to claim 1, which is characterized in that also wrap Second clutch is included, the second clutch connects the first rotating shaft and the third shaft.

6. double electric machine double row planetary gear multi-mode electromechanical coupling transmission device according to claim 5, which is characterized in that also wrap Third clutch is included, the third clutch and the second clutch form dual clutch module, and the third clutch will The first rotating shaft interrupts, and interrupting shaft connection engine side is the first rotating shaft, and connection is located in the first rotating shaft The planet carrier and first brake side are eight revolution axis, and the third clutch connects the first rotating shaft and described the Eight revolution axis.