CN116198504A - Control method and device for coasting recovery torque, storage medium and vehicle - Google Patents

Control method and device for coasting recovery torque, storage medium and vehicle Download PDF

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Publication number
CN116198504A
CN116198504A CN202211738764.1A CN202211738764A CN116198504A CN 116198504 A CN116198504 A CN 116198504A CN 202211738764 A CN202211738764 A CN 202211738764A CN 116198504 A CN116198504 A CN 116198504A
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CN
China
Prior art keywords
vehicle
torque
high dynamic
recovery torque
coasting
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Pending
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CN202211738764.1A
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Chinese (zh)
Inventor
陶喆
刘富庆
李晨
王杰雄
贾博
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Nason Automotive Technology Hangzhou Co ltd
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Nason Automotive Technology Hangzhou Co ltd
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Application filed by Nason Automotive Technology Hangzhou Co ltd filed Critical Nason Automotive Technology Hangzhou Co ltd
Priority to CN202211738764.1A priority Critical patent/CN116198504A/en
Publication of CN116198504A publication Critical patent/CN116198504A/en
Pending legal-status Critical Current

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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
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18072—Coasting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • 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
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • 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
    • B60W30/18172—Preventing, or responsive to skidding of wheels
    • 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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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The application provides a control method and device for coasting recovery torque, a storage medium and a vehicle. Relates to the internet application technology. The method comprises the following steps: judging whether the vehicle is in a high dynamic state or not; if the vehicle is in a high dynamic state, the coasting recovery torque is improved; and if the high dynamic state is eliminated, adjusting the coasting recovery torque according to the required torque value. Can promote slip recovery moment of torsion when the vehicle is in high dynamic state, the lifting member of slip recovery moment of torsion reduces the effect of slip recovery moment of torsion to the tire, when until slip swing moment of torsion numerical value is 0 nm, cancel the effect of slip recovery moment of torsion to the tire, increase the lateral force of tire, especially reduce the slip rate of drive wheel, and then improve vehicle stability.

Description

Control method and device for coasting recovery torque, storage medium and vehicle
Technical Field
The embodiment of the application relates to the technology of new energy automobiles, in particular to a control method and device for coasting recovery torque, a storage medium and a vehicle.
Background
With the development of new energy technology, the functions of the new energy electric automobile are more and more abundant. When the new energy electric vehicle slides, kinetic energy is converted into electric energy through motor reversal, and energy recovery is completed.
In order to recover energy as much as possible, currently, electric vehicles use a sliding recovery torque with a higher absolute value. However, when the vehicle suddenly releases the throttle at a high speed around a circle or when the vehicle releases the throttle and does high-speed avoidance (similar to an elk test) and other high-dynamic states, the vehicle is often unstable.
Disclosure of Invention
The application provides a control method and device for coasting recovery torque, a storage medium and a vehicle, which are used for solving the problem of vehicle instability in a high dynamic state of a new energy electric vehicle in the prior art.
In a first aspect, an embodiment of the present application provides a control method for a coasting recovery torque, which is applied to a new energy automobile, including:
judging whether the vehicle is in a high dynamic state or not;
if the vehicle is in a high dynamic state, the coasting recovery torque is improved;
and if the high dynamic state is eliminated, adjusting the coasting recovery torque according to the required torque value.
In a second aspect, an embodiment of the present application further provides a control device for a new energy vehicle to coast and recover torque, which is applied to a new energy vehicle, including:
the high dynamic judging module is used for judging whether the vehicle is in a high dynamic state or not;
the sliding recovery torque lifting module is used for lifting the sliding recovery torque if the vehicle is in a high dynamic state;
and the coasting recovery torque recovery module is used for adjusting the coasting recovery torque according to the required torque value without eliminating the high dynamic state.
In a third aspect, embodiments of the present application further provide a computer readable storage medium, where computer executable instructions are stored in the computer readable storage medium, where the computer executable instructions are used to implement a method as shown in embodiments of the present application when executed by a processor.
In a fourth aspect, embodiments of the present application further provide a new energy vehicle, including: the vehicle body electronic stability control system, the vehicle running dynamic control system and the vehicle controller are connected through buses, and the vehicle body electronic stability control system is used for executing the method shown in the embodiment of the application.
The control method, the control device, the storage medium and the vehicle for the coasting recovery torque judge whether the vehicle is in a high dynamic state or not; if the vehicle is in a high dynamic state, the coasting recovery torque is improved; and if the high dynamic state is eliminated, adjusting the coasting recovery torque according to the required torque value. When the vehicle is in a high dynamic state, as the lateral force of the tire is large in the limit state, the driving slip rate is quickly increased due to the fact that the vehicle is suddenly connected after the accelerator is loosened, and the vehicle is unstable under the double functions of the vehicle running dynamic control system VDC and the slip recovery torque. According to the control method for the sliding recovery torque, when the vehicle is in a high dynamic state, the sliding recovery torque can be lifted, the lifting piece of the sliding recovery torque reduces the effect of the sliding recovery torque on the tire until the sliding swing torque value is 0 nm, the effect of the sliding recovery torque on the tire is canceled, the lateral force of the tire is increased, the sliding rate of the driving wheel is especially reduced, and the stability of the vehicle is further improved.
Drawings
FIG. 1 is a flowchart one of a method of controlling coasting recovery torque provided in an embodiment of the present application;
FIG. 2 is a second flowchart of a method of controlling coasting recovery torque provided in an embodiment of the present application;
FIG. 3 is a flowchart III of a method of controlling coasting recovery torque provided in an embodiment of the present application;
FIG. 4 is a schematic structural view of a coasting recovery torque control device provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a control module of the new energy automobile provided in the embodiment of the application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
At present, an electric automobile adopts a sliding recovery torque with a higher absolute value. However, in a high-speed round-the-circle suddenly released throttle of a vehicle or in a high-dynamic state such as a high-speed avoidance (similar to an elk test) of the released throttle of the vehicle, as the lateral force of the tire is very large in the limit state of the vehicle, the sudden access of the released throttle after the sliding recovery can lead to the rapid rise of the driving wheel speed, and the instability of the vehicle is caused under the dual functions of a vehicle running dynamic control system (vehicle dynamic control system, VDC) and the sliding recovery torque.
In order to solve the above problems, the present application proposes the following technical ideas: when the vehicle is detected to be in a high dynamic state, the coasting recovery torque is a negative number with a larger absolute value, and the coasting recovery torque has a negative effect on the stability of the vehicle, so that the absolute value of the coasting recovery torque is gradually reduced, in other words, the coasting recovery torque is gradually increased until the value of the coasting recovery torque is 0 NM (NM), and the influence of the coasting recovery torque on the stability of the vehicle in the high dynamic state of the vehicle is eliminated. And when the vehicle exits from the high dynamic state, recovering the slip recovery torque according to the torque demand value, and realizing energy recovery.
The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for controlling slip recovery torque according to an embodiment of the present application, which is applicable to a case where a vehicle performs slip recovery torque control in a high dynamic state, and the method may be executed by a vehicle body electronic stability control system (Electronic Stability Controller, ESC) on a new energy vehicle. As shown in fig. 1, the control method for coasting recovery torque provided in the present application includes:
s110, judging whether the vehicle is in a high dynamic state.
Whether the vehicle is in a highly dynamic state may be determined by a signal triggered by a sensor or other control system. The high dynamic state in the embodiments of the present application includes, but is not limited to, a vehicle state in which the throttle is suddenly released at a high speed around a circle or the vehicle is released and is dodged at a high speed (similar to an elk test).
And S120, if the vehicle is in a high dynamic state, lifting the coasting recovery torque.
When the vehicle is in a high dynamic state, the slip recovery torque is negative. At this time, the step increases the slip recovery torque, and decreases the absolute value of the slip recovery torque until the slip recovery torque is adjusted to 0 NM (NM).
Alternatively, the lifting the coast recovery torque may be implemented as:
determining a step torque increasing signal; and sending the step torque increasing signal to a whole vehicle controller through a bus, so that the whole vehicle controller executes torque adjustment according to the torque signal.
The step torque increasing signal is used for realizing the improvement of the slip recovery torque value through multiple times of adjustment. The electronic stability control system of the automobile body transmits a step torque increasing signal to a whole automobile controller (VCU) through a CAN bus. The whole vehicle controller determines a specific torsion value according to the step torque increasing signal so as to realize torque adjustment, step torque increasing is realized, the vehicle is enabled to perform torque adjustment more stably, and the experience of a driver is improved.
And S130, if the high dynamic state is eliminated, adjusting the coasting recovery torque according to the required torque value.
And the whole vehicle controller determines a required torque value according to factors such as energy recovery requirements. When the high dynamic state is eliminated, the coasting recovery torque is adjusted to a required torque value, and energy recovery is achieved.
The control method, the control device, the storage medium and the vehicle for the coasting recovery torque judge whether the vehicle is in a high dynamic state or not; if the vehicle is in a high dynamic state, the coasting recovery torque is improved; and if the high dynamic state is eliminated, adjusting the coasting recovery torque according to the required torque value. When the vehicle is in a high dynamic state, as the lateral force of the tire is large in the limit state, the sudden access of the vehicle after the accelerator is loosened can lead to the rapid rise of the driving wheel speed, and the vehicle is unstable under the dual functions of the VDC of the vehicle running dynamic control system and the slip recovery torque. According to the control method for the sliding recovery torque, when the vehicle is in a high dynamic state, the sliding recovery torque can be lifted, the lifting piece of the sliding recovery torque reduces the effect of the sliding recovery torque on the tire until the sliding swing torque value is 0 nm, the effect of the sliding recovery torque on the tire is canceled, the lateral force of the tire is increased, the sliding rate of the driving wheel is especially reduced, and the stability of the vehicle is further improved.
Fig. 2 is a second flowchart of a control method of coasting recovery torque according to an embodiment of the present disclosure. In this embodiment of the present application, determining whether the vehicle is in a high dynamic state may be implemented as: judging whether a vehicle dynamic control system activation signal is received or not; and if the vehicle dynamic control system activation signal is received, determining that the vehicle is in a high dynamic state. If the vehicle is in a high dynamic state, the coasting recovery torque is raised, which can be implemented as: and if the vehicle dynamic control system activation signal is received, the coasting recovery torque is raised to 0 nm. As shown in fig. 2, the coasting recovery torque control method includes the steps of:
s201, judging whether a vehicle dynamic control system activation signal is received.
When the vehicle dynamic control system triggers an activation signal, the vehicle is indicated to have large dynamic state, and intervention is needed through the vehicle dynamic control system.
S202, if a vehicle dynamic control system activation signal is received, determining that the vehicle is in a high dynamic state.
S203, lifting the sliding recovery torque to 0 nm.
When a vehicle dynamic control system activation signal is received, the coasting recovery torque is gradually increased in a step torque increasing signal mode through the CAN bus until the coasting recovery torque is increased to 0 nm.
S204, if the high dynamic state is eliminated, adjusting the coasting recovery torque according to the required torque value.
The control method for the sliding recovery torque provided by the embodiment of the invention can control the sliding recovery torque based on the activation signal of the vehicle dynamic control system, realize the intervention of the regulation and control of the sliding recovery torque when the vehicle dynamic control system is activated, and improve the control accuracy.
Fig. 3 is a flowchart III of a control method for coasting recovery torque provided in an embodiment of the present application. In this embodiment of the present application, determining whether the vehicle is in a high dynamic state may be implemented as: acquiring a transverse acceleration signal; and if the transverse acceleration signal exceeds a first threshold value and the driver does not step on the accelerator pedal, determining that the vehicle is in a high dynamic state. If the vehicle is in a high dynamic state, the coasting recovery torque is raised, which can be implemented as: if the transverse acceleration signal value exceeds a first threshold value and the driver does not step on the accelerator pedal, the coasting recovery torque is improved; and if the transverse acceleration signal value exceeds a second threshold value, the coasting recovery torque is lifted to 0 nm, and the second threshold value is larger than the first threshold value. If the high dynamic state is eliminated, the coasting recovery torque is restored to the required torque value, and if the lateral acceleration signal value falls back within the second threshold value, the coasting recovery torque is restored to the required torque value. As shown in fig. 3, the coasting recovery torque control method includes the steps of:
s301, acquiring a transverse acceleration signal.
The vehicle body electronic stability control system itself is provided with a lateral acceleration sensor. A lateral acceleration signal (ay value) can be obtained by means of a lateral acceleration sensor.
And S302, if the lateral acceleration signal exceeds a first threshold value and the driver does not step on the accelerator pedal, determining that the vehicle is in a high dynamic state.
The first threshold may be 5m/s2. If the lateral acceleration signal is relative to a first threshold value and the driver does not step on the accelerator pedal, the vehicle is indicated to have a high dynamic state.
S303, lifting the coasting recovery torque.
If the transverse acceleration signal is relative to a first threshold value and the driver does not step on the accelerator pedal, the coasting recovery torque is gradually increased in a step torque increasing signal mode through the CAN bus.
And S304, if the transverse acceleration signal value exceeds a second threshold value, the coasting recovery torque is increased to 0 nm, and the second threshold value is larger than the first threshold value.
The lateral acceleration may not fall back immediately during the slip recovery torque boost, but rather continue to rise. The second threshold may be 7m/s2. And when the value of the transverse acceleration signal is greater than or equal to a second threshold value, the coasting recovery torque is raised to 0 nm.
S305, if the transverse acceleration signal value falls back to the second threshold value, the coasting recovery torque is recovered to the required torque value.
With control of the vehicle state, the lateral acceleration signal value falls back within said second threshold value, for example less than 7m/s2. And the whole vehicle controller determines a required torque value according to factors such as energy recovery requirements. And when the transverse acceleration signal value falls back into the second threshold value, the coasting recovery torque is adjusted to be the required torque value, so that energy recovery is realized.
According to the control method for the sliding recovery torque, the lateral acceleration can be obtained through the sensor in the electronic stability control system of the vehicle body, the sliding recovery torque is adjusted based on the value of the lateral acceleration, and the rapid response of the sliding recovery torque lifting is achieved.
It should be noted that the two implementations shown in fig. 2 and 3 may be executed simultaneously or alternatively. When either of the above two ways is satisfied, the corresponding implementation is performed.
Fig. 4 is a schematic structural diagram of a control device for coasting recovery torque according to an embodiment of the present disclosure. As shown in fig. 4, the coasting recovery torque control device includes: a high dynamic determination module 401, a coasting recovery torque boost module 402, and a coasting recovery torque recovery module 403.
A high dynamic judging module 401, configured to judge whether the vehicle is in a high dynamic state;
a coasting recovery torque lifting module 402 for lifting the coasting recovery torque if the vehicle is in a high dynamic state;
the coasting recovery torque recovery module 403 adjusts the coasting recovery torque according to the desired torque value with the less dynamic state eliminated.
On the basis of the above embodiment, the high dynamic determination module 401 is configured to:
judging whether a vehicle dynamic control system activation signal is received or not;
and if the vehicle dynamic control system activation signal is received, determining that the vehicle is in a high dynamic state.
On the basis of the above embodiment, the coasting recovery torque lifting module 402 is configured to:
and if the vehicle dynamic control system activation signal is received, the coasting recovery torque is raised to 0 nm.
On the basis of the above embodiment, the high dynamic determination module 401 is configured to:
acquiring a transverse acceleration signal;
and if the transverse acceleration signal exceeds a first threshold value and the driver does not step on the accelerator pedal, determining that the vehicle is in a high dynamic state.
On the basis of the above embodiment, the coasting recovery torque lifting module 402 is configured to:
if the transverse acceleration signal value exceeds a first threshold value and the driver does not step on the accelerator pedal, the coasting recovery torque is improved;
and if the transverse acceleration signal value exceeds a second threshold value, the coasting recovery torque is lifted to 0 nm, and the second threshold value is larger than the first threshold value.
On the basis of the above embodiment, the coasting recovery torque recovery module 403 is configured to:
and if the transverse acceleration signal value falls back to the second threshold value, recovering the coasting recovery torque to a required torque value.
On the basis of the above embodiment, the coasting recovery torque lifting module 402 is configured to:
determining a step torque increasing signal;
and sending the step torque increasing signal to a whole vehicle controller through a bus, so that the whole vehicle controller executes torque adjustment according to the torque signal.
The control device for the coasting recovery torque provided in the embodiment of the present application may be used to execute the technical scheme of the control method for the coasting recovery torque in the above embodiment, and its implementation principle and technical effect are similar, and are not described herein again.
It should be noted that, it should be understood that the division of the modules of the above apparatus is merely a division of a logic function, and may be fully or partially integrated into a physical entity or may be physically separated. And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; the method can also be realized in a form of calling software by a processing element, and the method can be realized in a form of hardware by a part of modules. For example, the high dynamic determination module may be a processing element that is set up separately, may be implemented in a chip of the above apparatus, or may be stored in a memory of the above apparatus in the form of program codes, and the functions of the high dynamic determination module may be called and executed by a processing element of the above apparatus. The implementation of the other modules is similar. In addition, all or part of the modules can be integrated together or can be independently implemented. The processing element here may be an integrated circuit with signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in a software form.
Fig. 5 is a schematic structural diagram of a control module of a new energy vehicle according to an embodiment of the present application. As shown in fig. 5, the control module may include: a vehicle body electronic stability control system 51, a vehicle running dynamic control system 52, and a vehicle control unit 53.
The new energy vehicle comprises a whole vehicle and a control module arranged on the whole vehicle. The control modules include a variety of control systems including, among others, a body electronic stability control system 51 (ESC), a vehicle dynamics control system 52 (VDC), and a vehicle control unit 53 (VCU). The vehicle body electronic stability control system 51, the vehicle running dynamic control system 52 and the whole vehicle controller 53 are connected through buses.
The vehicle body electronic stability control system 51 is used to execute the coasting recovery torque control method as shown in the embodiment of the present application.
The electronic device provided in the embodiment of the present application may be a terminal device in the above embodiment.
The embodiment of the application also provides a chip for running the instruction, and the chip is used for executing the technical scheme of the control method for the coasting recovery torque in the embodiment.
The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores computer instructions, and when the computer instructions run on a computer, the computer is caused to execute the technical scheme of the control method for the coasting recovery torque in the embodiment.
The embodiment of the application also provides a computer program product, which comprises a computer program stored in a computer readable storage medium, wherein at least one processor can read the computer program from the computer readable storage medium, and the technical scheme of the control method of the coasting recovery torque in the embodiment can be realized when the at least one processor executes the computer program.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. The control method of the coasting recovery torque is characterized by being applied to a new energy automobile and comprising the following steps:
judging whether the vehicle is in a high dynamic state or not;
if the vehicle is in a high dynamic state, the coasting recovery torque is improved;
and if the high dynamic state is eliminated, adjusting the coasting recovery torque according to the required torque value.
2. The method of claim 1, wherein determining whether the vehicle is in a high dynamic state comprises:
judging whether a vehicle dynamic control system activation signal is received or not;
and if the vehicle dynamic control system activation signal is received, determining that the vehicle is in a high dynamic state.
3. The method of claim 2, wherein if the vehicle is in a high dynamic state, the step of increasing the coasting recovery torque comprises:
and if the vehicle dynamic control system activation signal is received, the coasting recovery torque is raised to 0 nm.
4. The method of claim 1, wherein determining whether the vehicle is in a high dynamic state comprises:
acquiring a transverse acceleration signal;
and if the transverse acceleration signal exceeds a first threshold value and the driver does not step on the accelerator pedal, determining that the vehicle is in a high dynamic state.
5. The method of claim 4, wherein if the vehicle is in a high dynamic state, the step of increasing the coasting recovery torque comprises:
if the transverse acceleration signal value exceeds a first threshold value and the driver does not step on the accelerator pedal, the coasting recovery torque is improved;
and if the transverse acceleration signal value exceeds a second threshold value, the coasting recovery torque is lifted to 0 nm, and the second threshold value is larger than the first threshold value.
6. The method of claim 5, wherein restoring the coasting recovery torque to the desired torque value if the high dynamic state is eliminated comprises:
and if the transverse acceleration signal value falls back to the second threshold value, recovering the coasting recovery torque to a required torque value.
7. The method of claim 1, wherein the lifting the coast recovery torque comprises:
determining a step torque increasing signal;
and sending the step torque increasing signal to a whole vehicle controller through a bus, so that the whole vehicle controller executes torque adjustment according to the torque signal.
8. The utility model provides a control device of coasting recovery moment of torsion which characterized in that is applied to new energy automobile, includes:
the high dynamic judging module is used for judging whether the vehicle is in a high dynamic state or not;
the sliding recovery torque lifting module is used for lifting the sliding recovery torque if the vehicle is in a high dynamic state;
and the coasting recovery torque recovery module is used for adjusting the coasting recovery torque according to the required torque value without eliminating the high dynamic state.
9. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to carry out the method of any one of claims 1-7.
10. A new energy vehicle, characterized by comprising: the vehicle body electronic stability control system, the vehicle running dynamic control system and the vehicle controller are connected through buses, and the vehicle body electronic stability control system is used for executing the method according to any one of claims 1-7.
CN202211738764.1A 2022-12-30 2022-12-30 Control method and device for coasting recovery torque, storage medium and vehicle Pending CN116198504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211738764.1A CN116198504A (en) 2022-12-30 2022-12-30 Control method and device for coasting recovery torque, storage medium and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211738764.1A CN116198504A (en) 2022-12-30 2022-12-30 Control method and device for coasting recovery torque, storage medium and vehicle

Publications (1)

Publication Number Publication Date
CN116198504A true CN116198504A (en) 2023-06-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211738764.1A Pending CN116198504A (en) 2022-12-30 2022-12-30 Control method and device for coasting recovery torque, storage medium and vehicle

Country Status (1)

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