CN119590423A - Vehicle control method, controller, vehicle and program product - Google Patents
Vehicle control method, controller, vehicle and program product Download PDFInfo
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- CN119590423A CN119590423A CN202411756308.9A CN202411756308A CN119590423A CN 119590423 A CN119590423 A CN 119590423A CN 202411756308 A CN202411756308 A CN 202411756308A CN 119590423 A CN119590423 A CN 119590423A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/30—Wheel torque
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
本公开涉及一种车辆控制方法、控制器、车辆及程序产品，涉及车辆控制技术领域，可使车辆在复杂工况中的能耗保持最优。该方法包括：确定车辆的踏板状态以及车辆在预设周期的百公里电耗；当百公里电耗大于预设百公里电耗阈值时，根据百公里电耗和预设百公里电耗阈值，确定百公里电耗比值，并根据车辆的踏板状态和平均加速度信息，确定速度比值，其中，平均加速度信息包括在预设周期内车辆处于加速状态的第一平均加速度或车辆处于减速状态的第二平均加速度；根据百公里电耗比值和速度比值，确定扭矩调节系数；根据扭矩调节系数和车辆的请求扭矩，得到目标扭矩，并控制车辆以目标扭矩运行。
The present disclosure relates to a vehicle control method, a controller, a vehicle and a program product, and relates to the field of vehicle control technology, which can keep the energy consumption of the vehicle optimal in complex working conditions. The method includes: determining the pedal state of the vehicle and the 100-kilometer power consumption of the vehicle in a preset period; when the 100-kilometer power consumption is greater than the preset 100-kilometer power consumption threshold, determining the 100-kilometer power consumption ratio according to the 100-kilometer power consumption and the preset 100-kilometer power consumption threshold, and determining the speed ratio according to the pedal state of the vehicle and the average acceleration information, wherein the average acceleration information includes the first average acceleration of the vehicle in an accelerating state or the second average acceleration of the vehicle in a decelerating state in the preset period; determining the torque adjustment coefficient according to the 100-kilometer power consumption ratio and the speed ratio; obtaining the target torque according to the torque adjustment coefficient and the requested torque of the vehicle, and controlling the vehicle to run at the target torque.
Description
Technical Field
The present disclosure relates to the field of vehicle control technology, and in particular, to a vehicle control method, a controller, a vehicle, and a program product.
Background
At present, a plurality of driving modes, such as a power mode, an economic mode and a common mode, are arranged on a vehicle, different driving modes are adapted to different working conditions, the working conditions in the actual driving process are complex, a single driving mode cannot be completely adapted, and the energy consumption of the vehicle in the complex working conditions cannot be guaranteed to be optimal.
Disclosure of Invention
In order to solve the deficiencies of the prior art, the present disclosure provides a vehicle control method, a controller, a vehicle and a program product.
To achieve the above object, in a first aspect, the present disclosure provides a vehicle control method including:
determining the pedal state of a vehicle and hundred kilometer electricity consumption of the vehicle in a preset period;
when the hundred kilometers of electricity consumption is larger than a preset hundred kilometers of electricity consumption threshold, determining a hundred kilometers of electricity consumption ratio according to the hundred kilometers of electricity consumption and the preset hundred kilometers of electricity consumption threshold, and determining a speed ratio according to pedal state and average acceleration information of the vehicle, wherein the average acceleration information comprises first average acceleration of the vehicle in an acceleration state or second average acceleration of the vehicle in a deceleration state in the preset period;
Determining a torque adjustment coefficient according to the hundred kilometer electricity consumption ratio and the speed ratio;
And obtaining a target torque according to the torque adjustment coefficient and the request torque of the vehicle, and controlling the vehicle to run at the target torque.
In a second aspect, the present disclosure provides a controller comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the method of the first aspect.
In a third aspect, the present disclosure provides a vehicle comprising a processor according to the second aspect.
In a fourth aspect, the present disclosure provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of the first aspect.
In a fifth aspect, the present disclosure provides a computer program product comprising a computer program which, when executed by a processor, implements the method of the first aspect.
According to the technical scheme, when the hundred kilometer electricity consumption of the vehicle is larger than the preset hundred kilometer electricity consumption threshold, the torque adjustment coefficient is determined according to the determined hundred kilometer electricity consumption ratio and the speed ratio, the target torque is obtained according to the torque adjustment coefficient and the requested torque of the vehicle, the vehicle is controlled to run with the target torque, the energy consumption level of the vehicle under the current working condition is optimized, calibration data under different driving modes are replaced through the control strategy, any driving mode can adapt to diversified requirements of different users, and therefore complex working conditions in the driving process are adapted, and the vehicle type is not limited.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
Fig. 1 is a flowchart illustrating a vehicle control method according to an exemplary embodiment of the present disclosure.
Fig. 2 is a schematic diagram of a vehicle control method according to an exemplary embodiment of the present disclosure.
Fig. 3 is another flowchart of a vehicle control method according to an exemplary embodiment of the present disclosure.
Fig. 4 is a block diagram of a controller according to an exemplary embodiment of the present disclosure.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
As mentioned in the introduction, vehicles are provided with a plurality of driving modes, the different driving modes usually being distinguished by different calibration data. For example, the power mode can exert extremely-actuated force performance, the normal mode is slightly weaker than the power mode, the power performance is greatly reduced in the economic mode, and the energy recovery is enhanced. Which mode the vehicle is using under different conditions is determined by the user. There are also vehicles that do not distinguish between driving modes, with the power performance and energy recovery of the vehicle set manually by the user.
However, the inventor can select a proper driving mode according to the current working condition due to different calibration data corresponding to different driving modes, namely, the performance difference of the vehicle in different driving modes is distinguished through different calibration data, the working condition in the actual driving process is complex, the adaptable working condition of a single driving mode is limited, and the energy consumption of the vehicle in the complex working condition cannot be kept optimal.
In view of the foregoing, the present disclosure provides a vehicle control method, a controller, a vehicle, and a program product, which can maintain the energy consumption of the vehicle in a complex working condition to be optimal.
Fig. 1 is a flowchart illustrating a vehicle control method according to an exemplary embodiment of the present disclosure. The method can be used for intelligent equipment such as vehicle-mounted controllers and the like. As shown in fig. 1, the method may include the steps of:
in step S101, a pedal state of the vehicle and a hundred kilometer power consumption of the vehicle over a preset period are determined.
It is worth to say that hundred kilometers of electricity consumption under the same working condition can be calculated according to the battery power change and the driving mileage of the vehicle under the working condition. Specifically, the method can be determined by the following calculation formula:
,
wherein, Representing hundred kilometer electricity consumption, kWh/100km,The change of the electric quantity of the battery is characterized, kWh,And representing the change km of the driving mileage.
In step S102, when the electricity consumption of hundred kilometers is greater than the preset electricity consumption threshold of hundred kilometers, determining a electricity consumption ratio of hundred kilometers according to the electricity consumption of hundred kilometers and the preset electricity consumption threshold of hundred kilometers, and determining a speed ratio according to a pedal state and average acceleration information of the vehicle, wherein the average acceleration information comprises a first average acceleration of the vehicle in an acceleration state or a second average acceleration of the vehicle in a deceleration state in the preset period.
It is worth to say that the parameters influencing the energy consumption of the vehicle are different in different driving scenarios. For example, in suburban road driving, the vehicle generally runs at medium and high speed, fluctuation of acceleration and deceleration is small in the running process, and the vehicle is in a gentle state, and correspondingly, average acceleration and average deceleration are low, namely, in suburban road driving, the energy consumption of the vehicle is influenced by hundred kilometers of electricity consumption. In the urban road driving process, the vehicle generally runs at a low speed, frequent acceleration and deceleration can occur in the running process, namely the fluctuation of acceleration and deceleration is large, correspondingly, the average acceleration and the average deceleration are high, if the power is reduced, the driving experience of a user is poor, namely in the urban road driving process, the energy consumption of the vehicle is influenced by the speed of the vehicle. Therefore, the vehicle is controlled by combining hundred kilometers of electricity consumption and vehicle speed in the embodiment of the disclosure, and the energy consumption is reduced as much as possible while the necessary power performance of the vehicle is maintained.
It should be noted that the preset hundred kilometer power consumption thresholds corresponding to the vehicles in different driving modes may be the same or different. For example, the preset hundred kilometer electricity consumption thresholds of the vehicle in the sport mode and the snow mode are the same, and the preset hundred kilometer electricity consumption thresholds of the vehicle in the sport mode and the economic mode are different. The preset hundred kilometer electricity consumption threshold values of the vehicle in different driving modes can be obtained through the whole vehicle controller when the vehicle is in the driving mode, and can also be preset according to the driving requirements of a user, and the method is not limited.
In step S103, a torque adjustment coefficient is determined based on the hundred kilometer electricity consumption ratio and the speed ratio.
In step S104, a target torque is obtained based on the torque adjustment coefficient and the requested torque of the vehicle, and the vehicle is controlled to run at the target torque.
It is worth noting that calibration data for the vehicle in different driving modes includes, but is not limited to, hundred kilometers of electricity consumption and vehicle speed. Taking the calibration data as hundred kilometer electricity consumption and the speed of the vehicle as examples, the hundred kilometer electricity consumption and the speed of the existing vehicle in different modes are respectively preset with corresponding thresholds. Under actual road conditions, the current hundred kilometers of electricity consumption and/or the vehicle speed of the vehicle in the driving mode may exceed the corresponding threshold value, so that the vehicle is wasted in energy and the diversified demands of users cannot be met. In the embodiment of the disclosure, the comparison result of the hundred kilometer electricity consumption of the vehicle in different driving modes and the corresponding preset hundred kilometer electricity consumption threshold is taken as a trigger condition, and when the hundred kilometer electricity consumption of the vehicle in the driving modes exceeds the corresponding preset hundred kilometer electricity consumption threshold, a torque adjustment strategy is triggered to respectively perform scale factor processing on the hundred kilometer electricity consumption and the vehicle speed of the vehicle in the driving modes, so that the hundred kilometer electricity consumption and the vehicle speed of the vehicle in the driving modes are reduced, and different driving conditions are self-adapted.
According to the method and the device, the torque adjustment coefficient is determined according to the determined hundred kilometer electricity consumption ratio and the speed ratio, the target torque is obtained according to the torque adjustment coefficient and the requested torque of the vehicle, dynamic adjustment of the requested torque is achieved by combining the hundred kilometer electricity consumption ratio and the speed ratio, actual requirements of the vehicle can be matched more accurately, waste of energy is avoided, accordingly, the energy consumption level of the vehicle is optimized, and the energy utilization rate is improved. The vehicle is controlled to run according to the optimized target torque, so that the vehicle can reduce energy consumption, hundred kilometers of electricity consumption and realize energy conservation and emission reduction while maintaining necessary power performance, the strategy can flexibly adjust the request torque of the vehicle according to different driving conditions and driving habits, the adaptability is strong, the diversified demands of different users can be met, the complex working conditions in the driving process are adapted, and the vehicle is not limited by vehicle types.
In order to facilitate a better understanding of the vehicle control method provided by the present disclosure by those skilled in the art, the steps of the method are described in detail below.
It should be noted that, because the vehicle is in the driving state or the braking state at the same time, and the corresponding torque adjustment strategies in the two different states are different, the speed ratio is embodied, and therefore, specific parameters of the average acceleration information for determining the speed ratio in the different states of the vehicle are different, specifically, the first average acceleration of the vehicle in the accelerating state within the preset duration, or the second average acceleration of the vehicle in the decelerating state within the preset duration.
In a possible embodiment, the average acceleration information of the vehicle during the preset time period may be determined by:
Acquiring vehicle speed information of a vehicle under a current driving condition;
For each moment of a preset period, determining a first target speed of the vehicle at the moment and a second target speed of the vehicle at the moment next to the moment according to the speed information, and determining an acceleration value between the moment and the moment next to the moment according to the moment, the first target speed, the moment next to the moment and the second target speed;
and determining average acceleration information according to the obtained multiple acceleration values of the vehicle in the preset period.
It should be noted that the vehicle speed information may be a vehicle speed curve, or may be other data types, which is not limited in this disclosure. When the vehicle speed information is a vehicle speed curve, the determining mode can comprise the steps of obtaining a vehicle speed signal of the vehicle within a certain time period and generating the vehicle speed curve according to the vehicle speed signal within the time period. The preset duration may be less than or equal to the aforementioned certain duration. In the embodiment of the disclosure, the preset time length takes one hour.
For example, for each time in one hour in the vehicle speed curve, substituting the first target vehicle speed of the vehicle at the time, the second target vehicle speed of the vehicle at the next time of the time, the time and the next time of the time into the following calculation formula to obtain the acceleration value between the time and the next time of the time:
,
wherein, The time of characterization, unit s (seconds),Characterization timeIn units of s (seconds),Characterization timeAnd time of dayAcceleration in m/s 2,Characterization at time of dayIs provided, in km/h,Characterization at time of dayIs set in km/h.
The acceleration value of the vehicle in one hour between every two adjacent moments is obtained through the calculation formula, a plurality of acceleration values of the vehicle in one hour are obtained, and average acceleration information is determined according to the plurality of acceleration values.
According to the method and the device for determining the speed change conditions of the vehicle in the preset time period, the speed change conditions of the vehicle in the preset time period can be more comprehensively determined through the plurality of acceleration values of the vehicle in the preset time period, the acceleration state of the vehicle and the deceleration state of the vehicle are included, and therefore accuracy of the follow-up speed ratio is improved.
In a possible embodiment, determining the average acceleration information according to the obtained plurality of acceleration values of the vehicle in the preset period may include:
determining a first number of acceleration values, which are larger than zero, of the plurality of acceleration values of the vehicle in a preset period, and accumulating the acceleration values, which are larger than zero, in the plurality of acceleration values to obtain a first accumulated acceleration;
Determining the ratio of the first accumulated acceleration to the first number as a first average acceleration;
Or alternatively
Determining a second number of acceleration values smaller than zero in a plurality of acceleration values of the vehicle in a preset period, and accumulating absolute values of the acceleration values smaller than zero in the plurality of acceleration values to obtain a second accumulated acceleration;
and determining the ratio of the second accumulated acceleration to the second number as a second average acceleration.
For example, the acceleration value of zero and the abrupt acceleration in the acceleration values corresponding to the vehicle within one hour are removed, 3500 acceleration values are obtained, and the condition that the acceleration values of 3500 are satisfied is determinedIs 2000 for the acceleration values of 2000And accumulating to obtain a first accumulated acceleration, and calculating the difference between the first accumulated acceleration and 2000 to obtain a first average acceleration. Or determining that 3500 acceleration values satisfyFor which 1500 acceleration values are givenAnd accumulating to obtain a second accumulated acceleration, and calculating the difference between the second accumulated acceleration and 1500 to obtain a second average acceleration.
According to the method and the device, according to the first average acceleration of the vehicle in the acceleration state or the second average acceleration of the vehicle in the deceleration state in the preset time period, as average acceleration information, accidental errors caused by acceleration values at a single moment can be avoided, and therefore the accuracy of the speed ratio is improved.
In a possible embodiment, in step S103, determining the torque adjustment coefficient according to the hundred kilometer electricity consumption ratio and the speed ratio may include:
Multiplying the hundred kilometer electricity consumption ratio by a preset electricity consumption weight to obtain a first adjustment coefficient;
Multiplying the speed ratio by a preset speed weight to obtain a second adjustment coefficient;
And adding the first regulating coefficient and the second regulating coefficient to obtain a torque regulating coefficient.
It should be understood that the calibration data of the vehicle in different driving modes includes parameters such as hundred kilometers of electricity consumption, speed, etc., and in the embodiment of the disclosure, the control strategy is adopted to perform scale factor processing on the calibration data of the vehicle in different modes, so that the data volume of the calibration data of the whole vehicle in the driving mode can be reduced.
It is worth to be noted that, in the embodiment of the present disclosure, the vehicle speed signal, the pedal state, the requested torque, the preset hundred kilometer electricity consumption threshold value and the driving mileage of the vehicle may be all obtained by the vehicle controller. The battery consumption may be obtained through the battery system BMS. The present disclosure is not limited in this regard.
According to the method and the device, the first adjusting coefficient determined according to the hundred-meter electric consumption ratio is combined, the energy consumption state can be accurately identified and adjusted, unnecessary energy waste is avoided, the energy utilization rate is improved, the second adjusting coefficient determined according to the speed ratio can rapidly respond to speed change, stability of a vehicle in the driving process is guaranteed, the torque adjusting coefficient is obtained according to the first adjusting coefficient and the second adjusting coefficient, potential safety hazards are effectively avoided while energy consumption and speed of the vehicle are considered, and safety in the driving process of the vehicle is improved.
The method includes the steps of determining a vehicle speed curve according to a vehicle speed signal, determining a first average acceleration and a second average acceleration of a vehicle within a preset duration according to the vehicle speed curve, determining hundred kilometer electricity consumption according to a driving mileage and battery consumption, and determining a hundred kilometer electricity consumption ratio according to the hundred kilometer electricity consumption and a preset hundred kilometer electricity consumption threshold value, as shown in fig. 2.
When the accelerator pedal is triggered, the requested torque is the requested driving torque, a driving torque adjustment coefficient can be determined according to the first average acceleration and the hundred kilometer electricity consumption ratio, a target driving torque is determined according to the driving torque adjustment coefficient and the requested driving torque, and the driving motor controller controls the driving motor to output the target driving torque.
When the brake pedal is triggered, the request torque is the request feedback torque, a feedback torque adjusting coefficient can be determined according to the second average acceleration and the hundred kilometer electricity consumption ratio, and a target feedback torque is determined according to the feedback torque adjusting coefficient and the request feedback torque, and the driving motor controller controls the driving motor to recover the target feedback torque.
In a possible embodiment, the preset power consumption weight and the preset speed weight may be determined as follows:
determining the sum of the hundred kilometer electricity consumption ratio and the speed ratio to obtain an intermediate value;
dividing the hundred kilometer electricity consumption ratio by the intermediate value to obtain a preset electricity consumption weight;
dividing the speed ratio by the intermediate value to obtain a preset speed weight.
It should be noted that the sum of the preset power consumption weight and the preset speed weight is 1.
For example, in the case where the hundred kilometers electricity consumption ratio is 1.5 and the speed ratio is 1.2, the preset electricity consumption weight is 1.5/(1.2+1.5) ≡0.56, and the preset speed weight is 1.2/(1.2+1.5) ≡0.44.
It should be noted that the pedal state of the vehicle at the same time has only one of the cases where the accelerator pedal is triggered and the automatic pedal is triggered. When different pedals are triggered, the corresponding speed ratios are also different.
In a possible embodiment, in step S102, determining the speed ratio according to the pedal state and the average acceleration information of the vehicle may include:
Under the condition that an accelerator pedal of the vehicle is triggered, determining the current average acceleration of the vehicle in the preset period, and determining the ratio of the current average acceleration to the first average acceleration as a speed ratio;
In step S04, obtaining a target torque according to the torque adjustment coefficient and the requested torque of the vehicle, and controlling the vehicle to operate at the target torque may include:
dividing the requested torque of the vehicle by the torque adjustment coefficient to obtain a target driving torque, and controlling the vehicle to run at the target driving torque.
Illustratively, as shown in FIG. 3, the method specifically comprises the following steps:
in step S301, a vehicle speed curve is generated according to a vehicle speed signal of the vehicle within a preset duration, a first average acceleration and a second average acceleration are obtained according to the vehicle speed curve, and hundred kilometers of electricity consumption is obtained according to a driving history of the vehicle and battery consumption.
In step S302, it is determined whether or not the hundred kilometer power consumption is greater than a preset hundred kilometer power consumption threshold. If yes, step S303 is executed, and if no, step S301 is executed again.
In step S303, a ratio of hundred kilometer power consumption to a preset hundred kilometer power consumption is determined.
In step S304, the pedal state is determined.
In step S305, in the case where the accelerator pedal is triggered, a speed ratio of the average acceleration of the vehicle to the first average acceleration in a preset period is determined.
In step S307, the hundred kilometer electricity consumption ratio is multiplied by the preset electricity consumption weight to obtain a first adjustment coefficient, the speed ratio is multiplied by the preset speed weight to obtain a second adjustment coefficient, and the first adjustment coefficient and the second adjustment coefficient are added to obtain a torque adjustment coefficient.
In step S308, the requested torque is divided by the torque adjustment coefficient to obtain a target drive torque.
In step S308, the drive motor of the vehicle is controlled to output the target drive torque.
In a possible embodiment, in step S102, determining the speed ratio according to the pedal state and the average acceleration information of the vehicle may include:
Under the condition that a brake pedal of the vehicle is triggered, determining the current average deceleration of the vehicle in a preset period, and determining the ratio of the absolute value of the current deceleration to the second average acceleration as a speed ratio;
in step S104, obtaining a target torque according to the torque adjustment coefficient and the requested torque of the vehicle, and controlling the vehicle to operate at the target torque may include:
dividing the request feedback torque of the vehicle by the torque adjustment coefficient to obtain a target feedback torque, and controlling the vehicle to run at the target feedback torque.
Illustratively, as shown in FIG. 3, the method specifically comprises the following steps:
in step S301, a vehicle speed curve is generated according to a vehicle speed signal of the vehicle within a preset duration, a first average acceleration and a second average acceleration are obtained according to the vehicle speed curve, and hundred kilometers of electricity consumption is obtained according to a driving history of the vehicle and battery consumption.
In step S302, it is determined whether or not the hundred kilometer power consumption is greater than a preset hundred kilometer power consumption threshold. If yes, step S303 is executed, and if no, step S301 is executed again.
In step S303, a ratio of hundred kilometer power consumption to a preset hundred kilometer power consumption is determined.
In step S304, the pedal state is determined.
In step S306, in the case where the brake pedal is triggered, a speed ratio of the average deceleration of the vehicle to the second average acceleration in the preset period is determined.
In step S307, the hundred kilometer electricity consumption ratio is multiplied by the preset electricity consumption weight to obtain a first adjustment coefficient, the speed ratio is multiplied by the preset speed weight to obtain a second adjustment coefficient, and the first adjustment coefficient and the second adjustment coefficient are added to obtain a torque adjustment coefficient.
In step S308, the requested torque is divided by the torque adjustment coefficient to obtain a target feedback torque.
In step S308, the driving motor of the vehicle is controlled to output the target feedback torque.
In the embodiment of the disclosure, the corresponding torque adjustment coefficient is determined according to the current pedal state of the vehicle, the current request torque is dynamically adjusted through the torque adjustment coefficient to obtain the target torque, the vehicle is controlled to run with the target torque, the flexible adjustment of the torque of the vehicle in different driving modes is realized, the energy consumption of the vehicle is reduced as much as possible while the necessary power performance is maintained, the hundred kilometer power consumption is reduced, the energy saving and emission reduction are realized, and the strategy can flexibly adjust the request torque of the vehicle according to different driving conditions and driving habits, has strong adaptability, can meet the diversified demands of different users, is suitable for complex working conditions in the driving process, and is not limited by vehicle types.
Based on the same inventive concept, the present disclosure also provides a controller comprising:
a memory having a computer program stored thereon;
and a processor for executing the computer program in the memory to implement the vehicle control method described above.
According to the method and the device, the torque adjustment coefficient is determined according to the determined hundred kilometer electricity consumption ratio and the speed ratio, the target torque is obtained according to the torque adjustment coefficient and the requested torque of the vehicle, dynamic adjustment of the requested torque is achieved by combining the hundred kilometer electricity consumption ratio and the speed ratio, actual requirements of the vehicle can be matched more accurately, waste of energy is avoided, accordingly, the energy consumption level of the vehicle is optimized, and the energy utilization rate is improved. The vehicle is controlled to run according to the optimized target torque, so that the vehicle can reduce energy consumption, hundred kilometers of electricity consumption and realize energy conservation and emission reduction while maintaining necessary power performance, the strategy can flexibly adjust the request torque of the vehicle according to different driving conditions and driving habits, the adaptability is strong, the diversified demands of different users can be met, the complex working conditions in the driving process are adapted, and the vehicle is not limited by vehicle types.
Fig. 4 is a block diagram of an electronic device 400, shown in accordance with an exemplary embodiment. As shown in fig. 4, the electronic device 400 may include a processor 401, a memory 402. The electronic device 400 may also include one or more of a multimedia component 403, an input/output (I/O) interface 404, and a communication component 405.
Wherein the processor 401 is configured to control the overall operation of the electronic device 400 to perform all or part of the steps of the vehicle control method described above. The memory 402 is used to store various types of data to support operation on the electronic device 400, which may include, for example, instructions for any application or method operating on the electronic device 400, as well as application-related data such as vehicle mileage, battery consumption, vehicle speed signals, accelerator pedal opening, brake pedal opening, and the like. The Memory 402 may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ-Only Memory, EEPROM for short), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia component 403 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 402 or transmitted through the communication component 405. The audio assembly further comprises at least one speaker for outputting audio signals. The I/O interface 404 provides an interface between the processor 401 and other interface modules, which may be a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 405 is used for wired or wireless communication between the electronic device 400 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, near Field Communication (NFC), 2G, 3G, or 4G, or a combination of one or more thereof, so the corresponding Communication component 405 may include a Wi-Fi module, a bluetooth module, an NFC module.
In an exemplary embodiment, the electronic device 400 may be implemented by one or more Application-specific integrated circuits (ASICs), digital signal processors (DIGITAL SIGNAL processors, DSPs), digital signal processing devices (DIGITAL SIGNAL Processing Device, DSPDs), programmable logic devices (Programmable Logic Device, PLDs), field programmable gate arrays (Field Programmable GATE ARRAY, FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described vehicle control methods.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the vehicle control method described above is also provided. For example, the computer readable storage medium may be the memory 402 including program instructions described above, which are executable by the processor 401 of the electronic device 400 to perform the vehicle control method described above.
Based on the same inventive concept, the present disclosure also provides a vehicle including the controller described above.
The specific implementation of the controller has been described in detail in the corresponding embodiments, and this disclosure will not be described here.
According to the method and the device, the torque adjustment coefficient is determined according to the determined hundred kilometer electricity consumption ratio and the speed ratio, the target torque is obtained according to the torque adjustment coefficient and the requested torque of the vehicle, dynamic adjustment of the requested torque is achieved by combining the hundred kilometer electricity consumption ratio and the speed ratio, actual requirements of the vehicle can be matched more accurately, waste of energy is avoided, accordingly, the energy consumption level of the vehicle is optimized, and the energy utilization rate is improved. The vehicle is controlled to run according to the optimized target torque, so that the vehicle can reduce energy consumption, hundred kilometers of electricity consumption and realize energy conservation and emission reduction while maintaining necessary power performance, the strategy can flexibly adjust the request torque of the vehicle according to different driving conditions and driving habits, the adaptability is strong, the diversified demands of different users can be met, the complex working conditions in the driving process are adapted, and the vehicle is not limited by vehicle types.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a processor, which computer program, when executed by the processor, implements the steps of the vehicle control method described above.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. A vehicle control method characterized by comprising:
determining the pedal state of a vehicle and hundred kilometer electricity consumption of the vehicle in a preset period;
when the hundred kilometers of electricity consumption is larger than a preset hundred kilometers of electricity consumption threshold, determining a hundred kilometers of electricity consumption ratio according to the hundred kilometers of electricity consumption and the preset hundred kilometers of electricity consumption threshold, and determining a speed ratio according to pedal state and average acceleration information of the vehicle, wherein the average acceleration information comprises first average acceleration of the vehicle in an acceleration state or second average acceleration of the vehicle in a deceleration state in the preset period;
Determining a torque adjustment coefficient according to the hundred kilometer electricity consumption ratio and the speed ratio;
And obtaining a target torque according to the torque adjustment coefficient and the request torque of the vehicle, and controlling the vehicle to run at the target torque.
2. The vehicle control method according to claim 1, characterized in that the determining a speed ratio from the pedal state of the vehicle and the average acceleration information includes:
under the condition that an accelerator pedal of the vehicle is triggered, determining the current average acceleration of the vehicle in the preset period, and determining the ratio of the current average acceleration to the first average acceleration as a speed ratio;
The step of obtaining a target torque according to the torque adjustment coefficient and the request torque of the vehicle and controlling the vehicle to run at the target torque comprises the following steps:
Dividing the requested driving torque of the vehicle by the torque adjustment coefficient to obtain a target driving torque, and controlling the vehicle to run at the target driving torque.
3. The vehicle control method according to claim 1, characterized in that the determining a speed ratio from the pedal state of the vehicle and the average acceleration information includes:
determining a current average deceleration of the vehicle in the preset period under the condition that a brake pedal of the vehicle is triggered, and determining a ratio of an absolute value of the current average deceleration to the second average acceleration as a speed ratio;
The step of obtaining a target torque according to the torque adjustment coefficient and the request torque of the vehicle and controlling the vehicle to run at the target torque comprises the following steps:
dividing the request feedback torque of the vehicle by the torque adjustment coefficient to obtain a target feedback torque, and controlling the vehicle to run with the target feedback torque.
4. A vehicle control method according to any one of claims 1 to 3, wherein said determining a torque adjustment coefficient based on said hundred kilometer electricity consumption ratio and said speed ratio comprises:
Multiplying the hundred kilometer electricity consumption ratio by a preset electricity consumption weight to obtain a first adjustment coefficient;
Multiplying the speed ratio by a preset speed weight to obtain a second adjustment coefficient;
and adding the first regulating coefficient and the second regulating coefficient to obtain a torque regulating coefficient.
5. The vehicle control method according to claim 4, characterized in that the preset electricity consumption weight and the preset speed weight are determined by:
determining the sum of the hundred kilometer electricity consumption ratio and the speed ratio to obtain an intermediate value;
Dividing the hundred kilometer electricity consumption ratio by the intermediate value to obtain the preset electricity consumption weight;
dividing the speed ratio by the intermediate value to obtain the preset speed weight.
6. A vehicle control method according to any one of claims 1 to 3, wherein the average acceleration information of the vehicle over the preset period is determined by:
Acquiring the speed information of the vehicle under the current driving condition;
For each moment of the preset period, determining a first target vehicle speed of the vehicle at the moment and a second target vehicle speed of the vehicle at the next moment of the moment according to the vehicle speed information, and determining an acceleration value of the vehicle between the moment and the next moment of the moment according to the moment, the first target vehicle speed, the next moment of the moment and the second target vehicle speed;
and determining the average acceleration information according to the obtained acceleration values of the vehicle in the preset period.
7. The vehicle control method according to claim 6, characterized in that the determining the average acceleration information from the obtained plurality of the acceleration values of the vehicle in the preset period includes:
Determining a first number of acceleration values, greater than zero, of the plurality of acceleration values of the vehicle in the preset period, and accumulating the acceleration values, greater than zero, of the plurality of acceleration values to obtain a first accumulated acceleration;
determining a ratio of the first accumulated acceleration to the first number as a first average acceleration;
Or alternatively
Determining a second number of acceleration values, smaller than zero, of the plurality of acceleration values of the vehicle in the preset period, and accumulating absolute values of the acceleration values, smaller than zero, of the plurality of acceleration values to obtain a second accumulated acceleration;
And determining the ratio of the second accumulated acceleration to the second number as a second average acceleration.
8. A controller for a vehicle, which is configured to control a controller, characterized by comprising the following steps:
a memory having a computer program stored thereon;
A processor for executing the computer program in the memory to implement the method of any of claims 1-7.
9. A vehicle comprising the controller of claim 7.
10. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the method of any of claims 1-6.
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