CN113954820A - Drive control method, system, device, and storage medium for vehicle - Google Patents
Drive control method, system, device, and storage medium for vehicle Download PDFInfo
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- CN113954820A CN113954820A CN202010628048.2A CN202010628048A CN113954820A CN 113954820 A CN113954820 A CN 113954820A CN 202010628048 A CN202010628048 A CN 202010628048A CN 113954820 A CN113954820 A CN 113954820A
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- 238000005096 rolling process Methods 0.000 claims abstract description 8
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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
- B60W30/02—Control of vehicle driving stability
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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
- B60W30/02—Control of vehicle driving stability
- B60W30/045—Improving turning performance
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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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
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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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
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- Automation & Control Theory (AREA)
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- Mathematical Physics (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
The invention discloses a drive control method, a drive control system, a drive control apparatus, and a storage medium for a vehicle. The drive control method comprises the following steps: when a vehicle body electronic stabilizing system of a vehicle is started, acquiring the vehicle speed, the steering wheel angle, the accelerator pedal depth and the driving mode of the vehicle; calculating a maximum allowable torque of a driving system of the vehicle according to a vehicle speed, a driving mode and a steering wheel angle of the vehicle, and calculating a driving request torque of the vehicle according to the vehicle speed, the driving mode and an accelerator pedal depth of the vehicle; judging the relation between the maximum allowable torque and the driving request torque; the final requested torque is obtained from the relationship between the maximum allowable torque and the drive requested torque, and the vehicle is drive-controlled in accordance with the final requested torque to prevent the vehicle from rolling. The driving control method can realize the limitation of the torque output of the vehicle when the vehicle turns, thereby improving the driving safety.
Description
Technical Field
The present invention relates to the field of automotive technologies, and in particular, to a method, a system, a device, and a storage medium for controlling driving of a vehicle.
Background
In the process of vehicle running, the situation that the vehicle rolls due to the fact that the vehicle speed is too high during turning sometimes occurs, and in the related art, when the vehicle turning speed is too high, the vehicle body is mainly stabilized through a vehicle body electronic stabilizing system. However, the technology for stabilizing the vehicle body by the vehicle body electronic stability system is limited by the performance of the vehicle body electronic stability system, and when the turning acceleration is too fast, for example, when the driver mistakenly steps on the accelerator pedal during turning, the vehicle body electronic stability system has a limited effect that can be actually played.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, a first object of the present invention is to propose a drive control method of a vehicle to restrict a vehicle torque output when the vehicle turns, thereby improving safety of driving.
A second object of the invention is to propose a computer-readable storage medium.
A third object of the invention is to propose a drive control apparatus of a vehicle.
A fourth object of the present invention is to provide a drive control system of a vehicle.
In order to achieve the above object, an embodiment of a first aspect of the invention proposes a drive control method of a vehicle, the method including the steps of: when a vehicle body electronic stability system of the vehicle is started, acquiring the vehicle speed, the steering wheel angle, the accelerator pedal depth and the driving mode of the vehicle; calculating a maximum allowable torque of a drive system of the vehicle according to the vehicle speed, the driving mode, and the steering wheel angle of the vehicle, and calculating a drive request torque of the vehicle according to the vehicle speed, the driving mode, and the accelerator pedal depth of the vehicle; determining a relationship between the maximum allowable torque and the drive request torque; a final requested torque is obtained from a relationship between the maximum allowable torque and the drive requested torque, and the vehicle is drive-controlled in accordance with the final requested torque to prevent the vehicle from rolling.
According to the driving control method of the vehicle, when a vehicle body electronic stability system of the vehicle is started, the maximum torque of a vehicle driving system is calculated according to the vehicle speed, the driving mode and the steering wheel angle of the vehicle, the driving request torque of the vehicle is calculated according to the vehicle speed, the driving mode and the accelerator pedal depth of the vehicle, the final request torque is obtained according to the relation between the maximum allowable torque and the driving request torque, and the vehicle is further controlled. Therefore, the torque output of the vehicle can be limited when the vehicle turns, and the driving safety is improved.
In addition, the drive control method of the vehicle according to the present invention may further include the following additional features:
according to an embodiment of the present invention, the obtaining of the final requested torque according to the relationship between the maximum allowable torque and the drive requested torque includes: when the drive request torque is larger than the maximum allowable torque, taking the maximum allowable torque as the final request torque; when the drive request torque is equal to or less than the maximum allowable torque, the drive request torque is taken as the final request torque.
According to an embodiment of the present invention, the calculating of the maximum allowable torque of the drive system of the vehicle based on the vehicle speed of the vehicle, the driving mode, and the steering wheel angle includes: and calculating an initial maximum allowable torque of the driving system according to the vehicle speed and the steering wheel angle of the vehicle, and correcting the initial maximum allowable torque according to the driving mode to obtain the maximum allowable torque.
According to an embodiment of the present invention, the calculating of the drive request torque of the vehicle based on the vehicle speed of the vehicle, the driving pattern, and the accelerator pedal depth includes: and calculating the initial driving request torque of the vehicle according to the vehicle speed of the vehicle and the depth of the accelerator pedal, and correcting the initial driving request torque according to the driving mode to obtain the driving request torque.
In order to achieve the above object, a second embodiment of the present invention provides a computer-readable storage medium having a drive control program of a vehicle stored thereon, which when executed by a processor implements the above-mentioned drive control method of the vehicle.
The computer readable storage medium of the embodiment of the invention, when the driving control program of the vehicle stored thereon is executed by the processor, can realize the limitation of the torque output of the vehicle when the vehicle turns, thereby improving the driving safety.
In order to achieve the above object, a third embodiment of the present invention provides a driving control device for a vehicle, which includes a memory, a processor, and a driving control program of the vehicle stored in the memory and operable on the processor, wherein the processor implements the driving control method of the vehicle as described above when executing the driving control program.
The drive control apparatus of a vehicle of an embodiment of the invention, by implementing the drive control method of a vehicle described above, can realize the restriction of the vehicle torque output at the time of turning of the vehicle, thereby improving the safety of driving.
In order to achieve the above object, a fourth aspect of the present invention provides a driving control system for a vehicle, where the driving control system includes an obtaining module, configured to obtain a vehicle speed, a steering wheel angle, an accelerator pedal depth, and a driving mode of the vehicle when a body electronic stability system of the vehicle is turned on; a calculation module for calculating a maximum allowable torque of a drive system of the vehicle according to a vehicle speed of the vehicle, the driving mode, and the steering wheel angle, and calculating a drive request torque of the vehicle according to the vehicle speed of the vehicle, the driving mode, and the accelerator pedal depth; the judging module is used for judging the relation between the maximum allowable torque and the driving request torque; a control module for obtaining a final requested torque based on a relationship between the maximum allowable torque and the drive requested torque, and performing drive control of the vehicle based on the final requested torque to prevent the vehicle from rolling.
According to the drive control system of the vehicle, when a vehicle body electronic stability system of the vehicle is started, the speed, the steering wheel angle, the accelerator pedal depth and the driving mode of the vehicle are obtained through the obtaining module, the maximum allowable torque of a driving system of the vehicle and the driving request torque of the vehicle are calculated through the calculating module, the judging module judges the relation between the maximum allowable torque of the driving system of the vehicle and the driving request torque of the vehicle, and the control module controls the vehicle according to the judging result of the judging module. Therefore, the torque output of the vehicle can be limited when the vehicle turns, and the driving safety is improved.
In addition, the drive control system of the vehicle according to the present invention may further have the following additional features:
according to an embodiment of the present invention, the drive control system of a vehicle further includes: the control module is further configured to take the maximum allowable torque as the final requested torque when the driving requested torque is greater than the maximum allowable torque; when the drive request torque is equal to or less than the maximum allowable torque, the drive request torque is taken as the final request torque.
According to an embodiment of the present invention, the drive control system of a vehicle further includes: the calculation module is further used for calculating an initial maximum allowable torque of the driving system according to the vehicle speed and the steering wheel angle of the vehicle, and correcting the initial maximum allowable torque according to the driving mode to obtain the maximum allowable torque.
According to an embodiment of the present invention, the drive control system of a vehicle further includes: the calculation module is further used for calculating an initial driving request torque of the vehicle according to the vehicle speed of the vehicle and the accelerator pedal depth, and correcting the initial driving request torque according to the driving mode to obtain the driving request torque.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flowchart of a drive control method of a vehicle according to an embodiment of the invention;
fig. 2 is a block diagram of a drive control system of a vehicle according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A drive control method, a system, a device, and a storage medium of a vehicle of an embodiment of the invention are described below with reference to the drawings.
Fig. 1 is a flowchart of a drive control method of a vehicle according to an embodiment of the present invention.
As shown in fig. 1, the drive control method of a vehicle includes the steps of:
and S11, acquiring the speed, the steering wheel angle, the accelerator pedal depth and the driving mode of the vehicle when the electronic stability system of the vehicle body of the vehicle is started.
Specifically, corresponding sensors may be respectively disposed at a steering wheel and an accelerator pedal of the vehicle to acquire a steering wheel angle and an accelerator pedal depth of the vehicle. A corresponding wheel speed sensor may be provided at a wheel of the vehicle to detect a wheel speed of the vehicle, and further, a vehicle speed of the vehicle may be calculated based on the wheel speed of the vehicle. The current driving mode of the vehicle can be acquired through a vehicle control unit of the vehicle.
Optionally, if it is detected that the electronic body stabilization system of the vehicle is in a closed state, the required torque is calculated according to the vehicle speed and the depth of the accelerator pedal, and after the required torque is corrected according to the driving mode, the control is directly performed according to the calculated required torque.
And S12, calculating the maximum allowable torque of the driving system of the vehicle according to the vehicle speed, the driving mode and the steering wheel angle of the vehicle, and calculating the driving request torque of the vehicle according to the vehicle speed, the driving mode and the accelerator pedal depth of the vehicle.
Specifically, the maximum allowable torque of a drive system of the vehicle is calculated according to the vehicle speed, the driving mode and the steering wheel angle of the vehicle, specifically: an initial maximum allowable torque of a drive system is calculated according to a vehicle speed and a steering wheel angle of a vehicle, and the initial maximum allowable torque is corrected according to a driving mode to obtain a maximum allowable torque. Calculating the driving request torque of the vehicle according to the vehicle speed, the driving mode and the accelerator pedal depth of the vehicle, and specifically comprising the following steps: an initial driving request torque of the vehicle is calculated according to a vehicle speed and an accelerator pedal depth of the vehicle, and the initial driving request torque is corrected according to a driving mode to obtain the driving request torque.
The driving mode of the vehicle can comprise one or more of a sand mode, a snow mode, a sport mode and a normal mode, and the vehicle corrects the torque to different degrees in different driving modes.
As an example, the correspondence relationship between the vehicle speed, the steering wheel angle, and the initial maximum allowable torque may be preliminarily calibrated through experiments and stored in the form of a MAP of the entire vehicle driving force, and the initial maximum allowable torque may be obtained from the vehicle speed and the steering wheel angle of the vehicle, and the MAP. Similarly, the correspondence relationship between the vehicle speed and the accelerator pedal depth and the drive request torque of the vehicle may be preliminarily calibrated through experiments and stored in the form of a roll allowable torque MAP, and the initial drive request torque may be obtained from the vehicle speed and the accelerator pedal depth, and the MAP.
In the test for obtaining the MAP of the driving force of the entire vehicle, the rotation speed n of the motor is calculated from the detected vehicle speed v, where n is v/(i/0.377/r), where i is the transmission gear ratio and r is the rolling radius of the vehicle tire.
S13, the relationship between the maximum allowable torque and the drive request torque is determined.
Specifically, the magnitude relationship between the maximum allowable torque and the drive request torque is compared.
S14, obtaining a final requested torque based on the relationship between the maximum allowable torque and the driving requested torque, and performing driving control of the vehicle based on the final requested torque to prevent the vehicle from rolling.
Wherein obtaining the final requested torque according to the relationship between the maximum allowable torque and the drive requested torque includes: when the driving request torque is larger than the maximum allowable torque, taking the maximum allowable torque as the final request torque; when the driving request torque is less than or equal to the maximum allowable torque, the driving request torque is taken as the final request torque.
Further, the vehicle is controlled according to the final requested torque.
It should be noted that, a drive control key is provided on the vehicle, and the key may be a virtual key provided in the vehicle-mounted intelligent terminal or an entity key provided on the dashboard, so that when a driver needs, for example, when the driver performs extreme driving, the driver can turn off the drive control of the vehicle, thereby ensuring the extreme driving experience of the driver.
Alternatively, the drive control function of the vehicle may be turned on or off simultaneously with the body electronic stability system.
In summary, the driving control method of the vehicle according to the embodiment of the present invention can realize the limitation of the torque output of the vehicle when the vehicle turns, thereby improving the driving safety.
Further, the present invention proposes a computer-readable storage medium.
In an embodiment of the present invention, a computer-readable storage medium has stored thereon a drive control program of a vehicle, which when executed by a processor, implements the drive control method of the vehicle described above.
The computer-readable storage medium of an embodiment of the present invention, when the driving control program of the vehicle stored thereon is executed by the processor, can realize limiting of the torque output of the vehicle when the vehicle turns, thereby improving the safety of driving.
Further, the invention also provides a drive control apparatus of a vehicle.
In an embodiment of the present invention, a drive control apparatus of a vehicle includes a memory, a processor, and a drive control program of the vehicle stored on the memory and executable on the processor, and when the processor executes the drive control program, the drive control method of the vehicle described above is implemented.
The drive control apparatus of a vehicle of the embodiment of the invention, when the drive control program of the vehicle stored on the memory thereof is executed by the processor, can realize the restriction of the torque output of the vehicle at the time of turning of the vehicle, thereby improving the safety of driving.
Fig. 2 is a block diagram of a drive control system of a vehicle according to an embodiment of the present invention.
As shown in fig. 2, the drive control system 100 of the vehicle includes an acquisition module 101, a calculation module 102, a determination module 103, and a control module 104.
Specifically, the acquiring module 101 is used for acquiring the vehicle speed, the steering wheel angle, the accelerator pedal depth and the driving mode of the vehicle when a vehicle body electronic stability system of the vehicle is started; the calculation module 102 is used for calculating the maximum allowable torque of a driving system of the vehicle according to the vehicle speed, the driving mode and the steering wheel angle of the vehicle, and calculating the driving request torque of the vehicle according to the vehicle speed, the driving mode and the accelerator pedal depth of the vehicle; a judging module 103, configured to judge a relationship between the maximum allowable torque and the driving request torque; and a control module 104 for obtaining a final requested torque according to a relationship between the maximum allowable torque and the driving requested torque, and performing driving control on the vehicle according to the final requested torque to prevent the vehicle from rolling.
The drive control system can realize the limitation of the torque output of the vehicle when the vehicle turns, thereby improving the driving safety.
In an embodiment of the present invention, the control module 104 is specifically configured to: when the driving request torque is larger than the maximum allowable torque, taking the maximum allowable torque as the final request torque; when the driving request torque is less than or equal to the maximum allowable torque, the driving request torque is taken as the final request torque.
In an embodiment of the present invention, the calculation module 102 is specifically configured to: an initial maximum allowable torque of a drive system is calculated according to a vehicle speed and a steering wheel angle of a vehicle, and the initial maximum allowable torque is corrected according to a driving mode to obtain a maximum allowable torque.
An initial driving request torque of the vehicle is calculated according to a vehicle speed and an accelerator pedal depth of the vehicle, and the initial driving request torque is corrected according to a driving mode to obtain the driving request torque.
For another specific embodiment of the vehicle drive control system according to the embodiment of the present invention, reference may be made to the vehicle drive control method described above.
In summary, the drive control system of the vehicle according to the embodiment of the present invention can limit the torque output of the vehicle when the vehicle turns, thereby improving the driving safety.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A drive control method of a vehicle, characterized by comprising the steps of:
when a vehicle body electronic stability system of the vehicle is started, acquiring the vehicle speed, the steering wheel angle, the accelerator pedal depth and the driving mode of the vehicle;
calculating a maximum allowable torque of a drive system of the vehicle according to the vehicle speed, the driving mode, and the steering wheel angle of the vehicle, and calculating a drive request torque of the vehicle according to the vehicle speed, the driving mode, and the accelerator pedal depth of the vehicle;
determining a relationship between the maximum allowable torque and the drive request torque;
a final requested torque is obtained from a relationship between the maximum allowable torque and the drive requested torque, and the vehicle is drive-controlled in accordance with the final requested torque to prevent the vehicle from rolling.
2. The drive control method of a vehicle according to claim 1, wherein obtaining a final requested torque based on a relationship between the maximum allowable torque and the drive requested torque includes:
when the drive request torque is larger than the maximum allowable torque, taking the maximum allowable torque as the final request torque;
when the drive request torque is equal to or less than the maximum allowable torque, the drive request torque is taken as the final request torque.
3. The drive control method of a vehicle according to claim 1 or 2, characterized in that calculating a maximum allowable torque of a drive system of the vehicle based on a vehicle speed of the vehicle, the driving mode, and the steering wheel angle includes:
and calculating an initial maximum allowable torque of the driving system according to the vehicle speed and the steering wheel angle of the vehicle, and correcting the initial maximum allowable torque according to the driving mode to obtain the maximum allowable torque.
4. The drive control method of a vehicle according to claim 1 or 2, wherein calculating a drive request torque of the vehicle based on a vehicle speed of the vehicle, the driving pattern, and the accelerator pedal depth includes:
and calculating the initial driving request torque of the vehicle according to the vehicle speed of the vehicle and the depth of the accelerator pedal, and correcting the initial driving request torque according to the driving mode to obtain the driving request torque.
5. A computer-readable storage medium, characterized in that a drive control program of a vehicle is stored thereon, which when executed by a processor, implements a drive control method of a vehicle according to any one of claims 1 to 4.
6. A drive control apparatus of a vehicle, characterized by comprising a memory, a processor, and a drive control program of the vehicle stored on the memory and executable on the processor, the processor implementing the drive control method of the vehicle according to any one of claims 1 to 4 when executing the drive control program.
7. A drive control system of a vehicle, characterized by comprising:
the acquisition module is used for acquiring the speed, the steering wheel angle, the accelerator pedal depth and the driving mode of the vehicle when a vehicle body electronic stability system of the vehicle is started;
a calculation module for calculating a maximum allowable torque of a drive system of the vehicle according to a vehicle speed of the vehicle, the driving mode, and the steering wheel angle, and calculating a drive request torque of the vehicle according to the vehicle speed of the vehicle, the driving mode, and the accelerator pedal depth;
the judging module is used for judging the relation between the maximum allowable torque and the driving request torque;
a control module for obtaining a final requested torque based on a relationship between the maximum allowable torque and the drive requested torque, and performing drive control of the vehicle based on the final requested torque to prevent the vehicle from rolling.
8. The drive control system of a vehicle according to claim 7, characterized in that the control module is further configured to,
when the drive request torque is larger than the maximum allowable torque, taking the maximum allowable torque as the final request torque;
when the drive request torque is equal to or less than the maximum allowable torque, the drive request torque is taken as the final request torque.
9. The drive control system of a vehicle according to claim 7 or 8, characterized in that the calculation module is further configured to calculate an initial maximum allowable torque of the drive system based on the vehicle speed and the steering wheel angle of the vehicle, and correct the initial maximum allowable torque based on the driving mode to obtain the maximum allowable torque.
10. The drive control system of a vehicle according to claim 7 or 8, characterized in that the calculation module is further configured to calculate an initial drive request torque of the vehicle based on a vehicle speed of the vehicle and the accelerator pedal depth, and correct the initial drive request torque based on the driving pattern to obtain the drive request torque.
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| CN202010628048.2A CN113954820A (en) | 2020-07-02 | 2020-07-02 | Drive control method, system, device, and storage medium for vehicle |
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| CN202010628048.2A CN113954820A (en) | 2020-07-02 | 2020-07-02 | Drive control method, system, device, and storage medium for vehicle |
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