CN114655033A - Vehicle torque control method and device, vehicle and storage medium - Google Patents

Vehicle torque control method and device, vehicle and storage medium Download PDF

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Publication number
CN114655033A
CN114655033A CN202210287987.4A CN202210287987A CN114655033A CN 114655033 A CN114655033 A CN 114655033A CN 202210287987 A CN202210287987 A CN 202210287987A CN 114655033 A CN114655033 A CN 114655033A
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China
Prior art keywords
torque
vehicle
gear
driving mode
manual
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CN202210287987.4A
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Chinese (zh)
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CN114655033B (en
Inventor
肖晓
肖小城
梁长飞
孔令静
方涛
沙文瀚
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Chery New Energy Automobile Co Ltd
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Chery New Energy Automobile Co Ltd
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    • 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
    • B60L15/28—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 without contact making and breaking, e.g. using a transductor
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/48—Drive Train control parameters related to transmissions
    • B60L2240/486—Operating parameters
    • 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)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The application relates to the technical field of vehicles, in particular to a method and a device for controlling vehicle torque, a vehicle and a storage medium, wherein the vehicle comprises a manual gear shifting mechanism and an automatic gear shifting mechanism, and the method comprises the following steps: detecting a current driving mode of the vehicle; when the current driving mode is detected to be the automatic gear-shifting driving mode, acquiring first gear information of the automatic gear shifting mechanism and second gear information of the manual gear shifting mechanism; and matching the target vehicle torque corresponding to the first gear information and the second gear information, and controlling the output of a driving motor of the vehicle according to the target vehicle torque. From this, solved and satisfied different students 'examination card demand because of the needs, lead to needing multiple different motorcycle types to it is idle to appear the vehicle, causes the wasting of resources scheduling problem, through install automatic gearshift additional on manual fender vehicle, satisfies the daily training of different students' examination card demand, has improved the suitable configuration of vehicle resource, and the cost is reduced.

Description

Vehicle torque control method and device, vehicle and storage medium
Technical Field
The present disclosure relates to the field of vehicle technologies, and in particular, to a method and an apparatus for controlling a vehicle torque, a vehicle, and a storage medium.
Background
With the increasing of the vehicle holding amount, the driving training industry is rapidly developed. The new-energy pure electric driving school bus is high in energy utilization rate, low in training cost, clean and pollution-free, and is adopted by a small part of domestic driving training mechanisms at present to train driving skills.
In the related art, because the types of the motor vehicle driver licenses examined by the trainees are inconsistent, the driving and cultivating mechanism needs to prepare two types of driving school cars, namely a manual transmission and an automatic transmission, for the trainees to learn in the teaching process of the small vehicles.
However, by preparing different vehicle types for learning of trainees, the operating cost of a driving training mechanism is increased, and part of vehicles can be left unused, so that resource waste is caused, and urgent solution is needed.
Disclosure of Invention
The application provides a control method, device, electronic equipment and storage medium of vehicle moment of torsion to solve and satisfy different student's examination card demands because of needs, lead to needing multiple different motorcycle types, thereby it is idle to appear the vehicle, causes the wasting of resources scheduling problem, through install automatic gear shifting mechanism additional on manual fender vehicle, satisfies the daily training of different student's examination card demands, has improved the suitable configuration of vehicle resource, and the cost is reduced.
An embodiment of the first aspect of the present application provides a method for controlling torque of a vehicle, where the vehicle includes a manual shifting mechanism and an automatic shifting mechanism, and the method includes the following steps:
detecting a current driving mode of the vehicle;
when the current driving mode is detected to be the automatic gear driving mode, acquiring first gear information of the automatic gear shifting mechanism and second gear information of the manual gear shifting mechanism; and
and matching the target vehicle torque corresponding to the first gear information and the second gear information, and controlling the output of a driving motor of the vehicle according to the target vehicle torque.
According to an embodiment of the present application, when the second gear information is a first forward gear or a neutral gear, the matching a target vehicle torque corresponding to the first gear information and the second gear information and controlling a driving motor of the vehicle to output according to the target vehicle torque includes:
if the first gear information is a second forward gear, taking a first torque as the target vehicle torque, and controlling the output of a driving motor of the vehicle according to the first torque, wherein the first torque is less than or equal to the minimum value of the maximum allowable driving torque of the driving motor, a user requested torque and an overspeed protection torque;
and if the first gear information is a first reverse gear, taking a second torque as the target vehicle torque, and controlling the output of a driving motor of the vehicle according to the second torque, wherein the absolute value of the second torque is less than or equal to the minimum value of the absolute value of the maximum reverse driving torque of the driving motor, the absolute value of the torque requested by the user and the absolute value of the overspeed protection torque.
According to an embodiment of the present application, when the second gear information is the second reverse gear, the matching the target vehicle torque corresponding to the first gear information and the second gear information, and controlling the output of the driving motor of the vehicle according to the target vehicle torque includes:
if the first gear information is the second forward gear, inverting the output torque of the driving motor into a third torque, and controlling the vehicle to drive forwards according to the third torque;
and if the first gear information is the first backward gear, inverting the output torque of the driving motor into a fourth torque, and controlling the vehicle to drive backwards according to the fourth torque.
According to an embodiment of the application, the detecting the current driving mode of the vehicle comprises:
detecting whether a driving mode switching instruction is received;
if the switching instruction is received, setting the manual gear shifting mechanism to be any forward gear, and controlling the vehicle to be switched to the automatic gear shifting mechanism from the manual gear shifting mechanism to work when the opening degree of a brake pedal is larger than a preset opening degree, so that the current driving mode is the automatic gear-shifting driving mode;
and if the switching instruction is not received, maintaining the current driving mode as a manual driving mode.
According to an embodiment of the present application, the control method of vehicle torque further includes:
when the current driving mode is detected to be a manual gear driving mode, collecting second gear information of the manual gear shifting mechanism;
and matching the target vehicle torque corresponding to the second gear information, and controlling the output of a driving motor of the vehicle according to the target vehicle torque.
According to an embodiment of the present application, the control method of vehicle torque further includes:
calculating the current speed ratio of the vehicle during the running process of the vehicle;
calculating an actual gear of the vehicle according to the current speed ratio;
and carrying out overspeed protection on the vehicle according to the actual gear.
According to the control method of the vehicle torque, when the current driving mode of the vehicle is detected to be the automatic driving-blocking driving mode, the first gear information of the automatic gear shifting mechanism is collected, meanwhile, the second gear information of the manual gear shifting mechanism is collected, and the corresponding target vehicle torque is matched so that the driving motor of the vehicle is controlled to output. From this, solved and satisfied different students 'examination card demand because of the needs, lead to needing multiple different motorcycle types to it is idle to appear the vehicle, causes the wasting of resources scheduling problem, through install automatic gearshift additional on manual fender vehicle, satisfies the daily training of different students' examination card demand, has improved the suitable configuration of vehicle resource, and the cost is reduced.
An embodiment of a second aspect of the present application provides a control device for vehicle torque, the vehicle including a manual shift mechanism and an automatic shift mechanism, wherein the device includes:
the detection module is used for detecting the current driving mode of the vehicle;
the first acquisition module is used for acquiring first gear information of the automatic gear shifting mechanism and acquiring second gear information of the manual gear shifting mechanism when the current driving mode is detected to be the automatic gear driving mode; and
and the control module is used for matching the target vehicle torque corresponding to the first gear information and the second gear information and controlling the output of a driving motor of the vehicle according to the target vehicle torque.
According to an embodiment of the present application, when the second gear information is a first forward gear or a neutral gear, the control module is specifically configured to:
if the first gear information is a second forward gear, taking a first torque as the target vehicle torque, and controlling the output of a driving motor of the vehicle according to the first torque, wherein the first torque is less than or equal to the minimum value of the maximum allowable driving torque of the driving motor, a user requested torque and an overspeed protection torque;
and if the first gear information is a first reverse gear, taking a second torque as the target vehicle torque, and controlling the output of a driving motor of the vehicle according to the second torque, wherein the absolute value of the second torque is smaller than or equal to the minimum value of the absolute value of the maximum reverse driving torque of the driving motor, the absolute value of the torque requested by the user and the absolute value of the overspeed protection torque.
According to an embodiment of the present application, when the second gear information is a second reverse gear, the control module is specifically configured to:
if the first gear information is the second forward gear, inverting the output torque of the driving motor into a third torque, and controlling the vehicle to drive forwards according to the third torque;
and if the first gear information is the first backward gear, the output torque of the driving motor is reversed to be fourth torque, and the vehicle is controlled to drive backwards according to the fourth torque.
According to an embodiment of the present application, the detection module is specifically configured to:
detecting whether a driving mode switching instruction is received;
if the switching instruction is received, setting the manual gear shifting mechanism to be any forward gear, and controlling the vehicle to be switched to the automatic gear shifting mechanism from the manual gear shifting mechanism to work when the opening degree of a brake pedal is larger than a preset opening degree, so that the current driving mode is the automatic gear-shifting driving mode;
and if the switching instruction is not received, maintaining the current driving mode as a manual driving mode.
According to an embodiment of the present application, the above control device for vehicle torque further includes:
the second acquisition module is used for acquiring second gear information of the manual gear shifting mechanism when the current driving mode is detected to be the manual gear driving mode;
and the matching module is used for matching the target vehicle torque corresponding to the second gear information and controlling the output of a driving motor of the vehicle according to the target vehicle torque.
According to an embodiment of the present application, the above control device for vehicle torque further includes:
the first calculation module is used for calculating the current speed ratio of the vehicle in the running process of the vehicle;
the second calculation module is used for calculating the actual gear of the vehicle according to the current speed ratio;
and the protection module is used for carrying out overspeed protection on the vehicle according to the actual gear.
According to the control device of the vehicle torque, when the current driving mode of the vehicle is detected to be the automatic driving blocking mode, the first gear information of the automatic gear shifting mechanism is collected, meanwhile, the second gear information of the manual gear shifting mechanism is collected, and the corresponding target vehicle torque is matched so that the driving motor of the vehicle is controlled to output. The problem of satisfy different students 'examination card demand because of the needs, lead to needing multiple different motorcycle types to it is idle to appear the vehicle, causes the wasting of resources scheduling problem, through install automatic gearshift additional on manual fender vehicle, satisfies the daily training of different students' examination card demand, has improved the suitable configuration of vehicle resource, and the cost is reduced.
An embodiment of a third aspect of the present application provides a vehicle, comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being configured to perform a method of controlling vehicle torque as described in the above embodiments.
A fourth aspect embodiment of the present application provides a computer-readable storage medium having stored thereon a computer program, which is executed by a processor, for implementing the control method of vehicle torque as described in the above embodiments.
Additional aspects and advantages of the present application 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 present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart of a method of controlling vehicle torque according to an embodiment of the present application;
FIG. 2 is a flowchart illustrating a launch in different driving modes according to an embodiment of the present application;
FIG. 3 is a flow chart of a manual reverse automatic on-hold torque control provided according to an embodiment of the present application;
FIG. 4 is a block diagram of torque mode management and torque limiting provided according to one embodiment of the present application;
fig. 5 is an example diagram of a control apparatus of vehicle torque according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, 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 exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
A method, an apparatus, a vehicle, and a storage medium for controlling vehicle torque according to an embodiment of the present application are described below with reference to the drawings. The method comprises the steps that when a current driving mode of a vehicle is detected to be an automatic-gear driving mode, first gear information of an automatic gear shifting mechanism is collected, second gear information of a manual gear shifting mechanism is collected, and corresponding target vehicle torque is matched so as to control output of a driving motor of the vehicle. From this, solved and satisfied different students 'examination card demand because of the needs, lead to needing multiple different motorcycle types to the vehicle appears idle, causes the wasting of resources scheduling problem, through install automatic gear shifting mechanism additional on manual fender vehicle, satisfies the daily training of different students' examination card demand, has improved the suitable configuration of vehicle resource, and the cost is reduced.
Specifically, fig. 1 is a schematic flowchart of a method for controlling vehicle torque according to an embodiment of the present disclosure.
In the embodiment of the application, the vehicle comprises a manual gear shifting mechanism and an automatic gear shifting mechanism, and the system components related to the control method of the vehicle torque mainly comprise: a VCU (Vehicle Control Unit), an MT (Manual Transmission) Transmission, a Manual shift mechanism, an automatic shift mechanism, an MCU (Motor Control Unit), a BMS (Battery Control System), an ICM (Instrument Communications Interface), a Manual-automatic mode selector switch, a brake pedal, and a clutch pedal.
As shown in fig. 1, the control method of the vehicle torque includes the steps of:
in step S101, the current driving mode of the vehicle is detected.
Further, in some embodiments, detecting a current driving mode of the vehicle includes: detecting whether a driving mode switching instruction is received; if a switching instruction is received, setting the manual gear shifting mechanism to be any forward gear, and controlling the vehicle to be switched from the manual gear shifting mechanism to the automatic gear shifting mechanism to work when the opening degree of the brake pedal is larger than the preset opening degree, so that the current driving mode is an automatic gear-shifting driving mode; and if the switching instruction is not received, maintaining the current driving mode as the manual driving blocking mode.
Specifically, as shown in fig. 2, the driving modes of the vehicle are specifically a manual drive-in mode and an automatic drive-in mode. In the manual gear driving mode, the instrument panel does not display gear information and simultaneously does not receive gear information of automatic gear shifting; in the automatic gear-shifting driving mode, the instrument panel displays gear information, the whole vehicle is in a flameout state, and after a driver needs to step on a brake to restart the vehicle, the vehicle controller collects and responds to the gear information of the automatic gear-shifting mechanism. After the vehicle is started, the current driving mode of the vehicle can be detected through information such as an instrument panel, and generally, the driving mode of the vehicle after the vehicle is started is a manual drive-in mode as a default.
Further, after the vehicle is started, whether a driver has a mode switching instruction through a manual-automatic mode switching switch is judged, if the switching instruction is received, the manual gear shifting mechanism is set to be any forward gear, and when the opening degree of the brake pedal is larger than a preset opening degree, the vehicle is controlled to be switched from the manual gear shifting mechanism to the automatic gear shifting mechanism to work, so that the current driving mode is an automatic gear driving mode, wherein the preset opening degree of the brake pedal can be a threshold value preset by a user, can be a threshold value obtained through a limited number of experiments, or can be a threshold value obtained through limited number of computer simulations, and is not specifically limited herein. Preferably, the preset opening degree of the embodiment of the present application may control an opening degree at which the vehicle is kept parked; and if the switching instruction is not received, maintaining the current driving mode as the manual driving blocking mode.
For example, if the current driving mode of the vehicle is the manual mode, if the vehicle controller receives a command for switching the driving mode, the manual shift mechanism may be set to the 2-gear position, and when the opening degree of the brake pedal is an opening degree for controlling the vehicle to be parked, the vehicle is controlled to be switched from the manual shift mechanism to the automatic shift mechanism to work, so that the current driving mode is the automatic shift driving mode, and if the vehicle controller does not receive the command for switching the driving mode, the current driving mode is maintained to be the manual shift driving mode.
In step S102, when it is detected that the current driving mode is the automatic shift driving mode, the first gear information of the automatic shift mechanism is collected, and the second gear information of the manual shift mechanism is collected.
The first gear information and the second gear information can be states of gears, such as a forward gear, a reverse gear, a neutral gear and the like.
Specifically, when it is detected that the current driving mode of the vehicle is the automatic shift driving mode, the first shift information of the automatic shift mechanism and the second shift information of the manual shift mechanism can be respectively collected according to the embodiment of the application, so that the states of the automatic shift mechanism and the manual shift mechanism are determined.
In step S103, the target vehicle torques corresponding to the first range information and the second range information are matched, and the drive motor output of the vehicle is controlled according to the target vehicle torques.
Further, in some embodiments, when the second gear information is the first forward gear or the neutral gear, matching the target vehicle torque corresponding to the first gear information and the second gear information, and controlling the output of the driving motor of the vehicle according to the target vehicle torque includes: if the first gear information is a second forward gear, taking a first torque as a target vehicle torque, and controlling the output of a driving motor of the vehicle according to the first torque, wherein the first torque is less than or equal to the minimum value of the maximum allowable driving torque of the driving motor, the torque requested by a user and the overspeed protection torque; and if the first gear information is a first reverse gear, taking a second torque as a target vehicle torque, and controlling the output of a driving motor of the vehicle according to the second torque, wherein the absolute value of the second torque is less than or equal to the minimum value of the absolute value of the maximum reverse driving torque of the driving motor, the absolute value of the torque requested by the user and the absolute value of the overspeed protection torque.
The first forward gear is a forward gear in a manual gear driving mode, the second forward gear is a forward gear in an automatic gear driving mode, and the first reverse gear is a reverse gear in an automatic gear driving mode; the first torque is the torque actually output by the motor when the manual gear is in a forward gear or a neutral gear and the automatic gear is in the forward gear; the second torque is the torque actually output by the motor when the manual gear is in the forward gear or the neutral gear and the automatic gear is in the backward gear. In the running process of the vehicle, the vehicle control unit can perform mode management and torque limitation on the output torque of the vehicle according to the driving mode of the vehicle, the first gear information of the automatic gear shifting mechanism and the second gear information of the manual gear shifting mechanism. The torque management mode comprises a zero torque mode, a driving mode and an energy recovery mode under the manual driving mode, and at the moment, the vehicle control unit enters different torque modes according to the driving working condition; in the automatic shift driving mode, since vehicle reverse is achieved by motor reverse rotation, torque mode management may be divided into a zero torque mode, a driving mode, a reverse mode, and an energy recovery mode.
Specifically, when the second gear information of the vehicle is a forward gear or a neutral gear, if the first gear information is also the forward gear, the vehicle controller controls the vehicle to enter a driving mode, and in the driving mode, the actual output torque of the motor is a forward torque, the torque is taken as a target vehicle torque, and the drive motor of the vehicle is controlled to output according to the torque, wherein the actual output forward torque of the motor is less than or equal to the minimum value of the maximum allowable drive torque of the drive motor, the user request torque and the overspeed protection torque; and when the automatic gear is a reverse gear, the vehicle controller controls the vehicle to enter a reverse gear mode, and in the reverse gear mode, the actual output torque of the motor is negative torque, the torque is taken as target vehicle torque, and the output of a driving motor of the vehicle is controlled according to the torque, wherein the absolute value of the negative torque actually output by the motor is smaller than or equal to the minimum value of the absolute value of the maximum reverse driving torque of the driving motor, the absolute value of the torque requested by a user and the absolute value of the overspeed protection torque.
Further, in some embodiments, when the second gear information is the second reverse gear, matching the target vehicle torque corresponding to the first gear information and the second gear information, and controlling the output of the driving motor of the vehicle according to the target vehicle torque includes: if the first gear information is a second forward gear, inverting the output torque of the driving motor into a third torque, and controlling the vehicle to drive forwards according to the third torque; and if the first gear information is the first backward gear, inverting the output torque of the driving motor into a fourth torque, and controlling the vehicle to drive backwards according to the fourth torque.
Wherein the second reverse gear is a reverse gear in a manual-gear driving mode; the third torque is the torque actually output by the motor when the manual gear is a reverse gear and the automatic gear is a forward gear; the fourth torque is the torque actually output by the motor when the manual gear and the automatic gear are simultaneously the reverse gear.
Specifically, when the manual gear of the vehicle is a reverse gear, the gearbox arranged in the vehicle can change the functions of the rotating speed, the torque and the like of the engine, and at the moment, when the manual gear is the reverse gear and the automatic gear is a forward gear, the vehicle controller controls the vehicle to enter a reverse gear mode, and meanwhile, the torque actually output by the motor needs to be inverted, namely, negative torque is output, so that the vehicle controller controls the vehicle to move forwards; when the manual gear is a reverse gear and the automatic gear is also a reverse gear, the vehicle controller controls the vehicle to enter a driving mode, and meanwhile, the torque actually output by the motor needs to be reversed, namely, the forward torque is output, so that the vehicle controller controls the vehicle to reverse.
In summary, as shown in fig. 3, fig. 3 is a flowchart illustrating the manual R-range automatic-shift driving torque control according to an embodiment of the present application, and includes the following steps:
s301, the vehicle is ready.
And S302, setting the driving mode to be automatic gear.
And S303, judging whether the manual gear is a reverse gear, if so, executing S304, and otherwise, executing S312.
And S304, judging whether the automatic gear is a forward gear, if so, executing S305, otherwise, executing S308.
S305, the torque mode enters a reverse gear mode.
And S306, inverting the output torque into negative torque.
And S307, driving the whole vehicle in the forward direction, and jumping to execute S312.
And S308, judging whether the automatic gear is a reverse gear, if so, executing S309, and otherwise, executing S312.
S309, the torque mode enters the drive mode.
And S310, outputting the torque to be positive torque.
And S311, driving the whole vehicle backwards.
And S312, normal driving.
Further, in some embodiments, the method for controlling vehicle torque further includes: collecting second gear information of the manual gear shifting mechanism when the current driving mode is detected to be the manual gear driving mode; and matching the target vehicle torque corresponding to the second gear information, and controlling the output of a driving motor of the vehicle according to the target vehicle torque.
Specifically, if the current vehicle is in a manual-gear driving mode, if the collected second gear information of the manual gear shifting mechanism is a first forward gear, the vehicle controller controls the vehicle to move forward, and if the collected second gear information of the manual gear shifting mechanism is a second backward gear, the vehicle controller controls the vehicle to move backward.
It should be noted that, when the current vehicle is in the manual shift driving mode, the control mode of the current vehicle is consistent with that of the existing manual shift vehicle, and details are not described herein to avoid redundancy.
Further, in some embodiments, the method for controlling vehicle torque further includes: calculating the current speed ratio of the vehicle during the running process of the vehicle; calculating the actual gear of the vehicle according to the current speed ratio; and carrying out overspeed protection on the vehicle according to the actual gear.
Specifically, as shown in fig. 4, during the running of the vehicle, if the current vehicle is in the manual shift driving mode, the driver engages and steps on the clutch through the manual shift mechanism to start, and during the starting, if the clutch is released too fast or the operation is not proper, the vehicle may shake, bump, stall, or stall; in the driving process, the vehicle control unit judges the actual manual gear in the MT gearbox by acquiring and calculating the speed ratio of the current vehicle through a hard wire, and performs overspeed protection on the vehicle speed according to the actual manual gear; if the current vehicle is in the automatic gear driving mode, the vehicle control unit judges the actual gear in the MT gearbox and shields a clutch pedal by calculating the current speed ratio of the vehicle, and switches gear information in the automatic gear driving mode to a forward gear by stepping on a brake, so that the vehicle is normally started, and the conditions of shaking, flameout and the like can not occur in the starting and driving processes of the vehicle in the automatic gear driving mode.
According to the control method of the vehicle torque, when the current driving mode of the vehicle is detected to be the automatic driving-blocking driving mode, the first gear information of the automatic gear shifting mechanism is collected, meanwhile, the second gear information of the manual gear shifting mechanism is collected, and the corresponding target vehicle torque is matched so that the driving motor of the vehicle is controlled to output. From this, solved and satisfied different students 'examination card demand because of the needs, lead to needing multiple different motorcycle types to it is idle to appear the vehicle, causes the wasting of resources scheduling problem, through install automatic gearshift additional on manual fender vehicle, satisfies the daily training of different students' examination card demand, has improved the suitable configuration of vehicle resource, and the cost is reduced.
Next, a control device of vehicle torque proposed according to an embodiment of the present application is described with reference to the drawings.
Fig. 5 is a block diagram schematically illustrating a vehicle torque control device according to an embodiment of the present application.
As shown in fig. 5, the vehicle torque control device 10 includes: a detection module 100, a first acquisition module 200, and a control module 300.
The detection module 100 is used for detecting a current driving mode of the vehicle;
the first acquisition module 200 is configured to acquire first gear information of the automatic gear shift mechanism and second gear information of the manual gear shift mechanism when detecting that the current driving mode is the automatic shift driving mode; and
the control module 300 is configured to match a target vehicle torque corresponding to the first gear information and the second gear information, and control a driving motor of the vehicle to output according to the target vehicle torque.
Further, in some embodiments, when the second gear information is the first forward gear or the neutral gear, the control module 300 is specifically configured to:
if the first gear information is a second forward gear, taking a first torque as a target vehicle torque, and controlling the output of a driving motor of the vehicle according to the first torque, wherein the first torque is less than or equal to the minimum value of the maximum allowable driving torque of the driving motor, the torque requested by a user and the overspeed protection torque;
and if the first gear information is a first reverse gear, taking a second torque as a target vehicle torque, and controlling the output of a driving motor of the vehicle according to the second torque, wherein the absolute value of the second torque is less than or equal to the minimum value of the absolute value of the maximum reverse driving torque of the driving motor, the absolute value of the torque requested by the user and the absolute value of the overspeed protection torque.
Further, in some embodiments, when the second gear information is the second reverse gear, the control module 300 is specifically configured to:
if the first gear information is a second forward gear, the output torque of the driving motor is reversed to be a third torque, and the vehicle is controlled to be driven forwards according to the third torque;
and if the first gear information is the first backward gear, inverting the output torque of the driving motor into a fourth torque, and controlling the vehicle to drive backwards according to the fourth torque.
Further, in some embodiments, the detection module 100 is specifically configured to:
detecting whether a driving mode switching instruction is received;
if a switching instruction is received, setting the manual gear shifting mechanism as any forward gear, and controlling the vehicle to be switched from the manual gear shifting mechanism to the automatic gear shifting mechanism to work when the opening of a brake pedal is larger than a preset opening, so that the current driving mode is an automatic gear driving mode;
and if the switching instruction is not received, maintaining the current driving mode as the manual driving blocking mode.
Further, in some embodiments, the above control device 10 for vehicle torque further includes:
the second acquisition module is used for acquiring second gear information of the manual gear shifting mechanism when the current driving mode is detected to be the manual gear driving mode;
and the matching module is used for matching the target vehicle torque corresponding to the second gear information and controlling the output of a driving motor of the vehicle according to the target vehicle torque.
Further, in some embodiments, the control device 10 for vehicle torque further includes:
the first calculation module is used for calculating the current speed ratio of the vehicle in the running process of the vehicle;
the second calculation module is used for calculating the actual gear of the vehicle according to the current speed ratio;
and the protection module is used for carrying out overspeed protection on the vehicle according to the actual gear.
According to the control device of the vehicle torque, when the current driving mode of the vehicle is detected to be the automatic driving blocking mode, the first gear information of the automatic gear shifting mechanism is collected, meanwhile, the second gear information of the manual gear shifting mechanism is collected, and the corresponding target vehicle torque is matched so that the driving motor of the vehicle is controlled to output. From this, solved and satisfied different students 'examination card demand because of the needs, lead to needing multiple different motorcycle types to it is idle to appear the vehicle, causes the wasting of resources scheduling problem, through install automatic gearshift additional on manual fender vehicle, satisfies the daily training of different students' examination card demand, has improved the suitable configuration of vehicle resource, and the cost is reduced.
Fig. 6 is a schematic structural diagram of a vehicle according to an embodiment of the present application. The vehicle may include:
memory 601, processor 602, and computer programs stored on memory 601 and executable on processor 602.
The processor 602, when executing the program, implements the control method of the vehicle torque provided in the above-described embodiment.
Further, the vehicle further includes:
a communication interface 603 for communication between the memory 601 and the processor 602.
The memory 601 is used for storing computer programs that can be run on the processor 602.
Memory 601 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk memory.
If the memory 601, the processor 602 and the communication interface 603 are implemented independently, the communication interface 603, the memory 601 and the processor 602 may be connected to each other through a bus and perform communication with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.
Optionally, in a specific implementation, if the memory 601, the processor 602, and the communication interface 603 are integrated on a chip, the memory 601, the processor 602, and the communication interface 603 may complete mutual communication through an internal interface.
Processor 602 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present Application.
The present embodiment also provides a computer-readable storage medium on which a computer program is stored, characterized in that the program is executed by a processor to implement the control method of vehicle torque as above.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means 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 present application. In this specification, the schematic representations of the terms used above are not necessarily intended to 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 N embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
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 application, "N" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of implementing the embodiments of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. 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.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

Claims (10)

1. A method of controlling torque of a vehicle, the vehicle including a manual shift mechanism and an automatic shift mechanism, wherein the method comprises the steps of:
detecting a current driving mode of the vehicle;
when the current driving mode is detected to be the automatic gear driving mode, acquiring first gear information of the automatic gear shifting mechanism and second gear information of the manual gear shifting mechanism; and
and matching the target vehicle torque corresponding to the first gear information and the second gear information, and controlling the output of a driving motor of the vehicle according to the target vehicle torque.
2. The method according to claim 1, wherein when the second gear information is a first forward gear or a neutral gear, the matching a target vehicle torque corresponding to the first gear information and the second gear information and controlling a driving motor output of the vehicle according to the target vehicle torque comprises:
if the first gear information is a second forward gear, taking a first torque as the target vehicle torque, and controlling the output of a driving motor of the vehicle according to the first torque, wherein the first torque is less than or equal to the minimum value of the maximum allowable driving torque of the driving motor, a user requested torque and an overspeed protection torque;
and if the first gear information is a first reverse gear, taking a second torque as the target vehicle torque, and controlling the output of a driving motor of the vehicle according to the second torque, wherein the absolute value of the second torque is less than or equal to the minimum value of the absolute value of the maximum reverse driving torque of the driving motor, the absolute value of the torque requested by the user and the absolute value of the overspeed protection torque.
3. The method according to claim 1, wherein when the second gear information is a second reverse gear, the matching of the target vehicle torques corresponding to the first gear information and the second gear information and the control of the drive motor output of the vehicle in accordance with the target vehicle torque comprises:
if the first gear information is the second forward gear, inverting the output torque of the driving motor into a third torque, and controlling the vehicle to drive forwards according to the third torque;
and if the first gear information is the first backward gear, inverting the output torque of the driving motor into a fourth torque, and controlling the vehicle to drive backwards according to the fourth torque.
4. The method of claim 1, wherein the detecting a current driving mode of the vehicle comprises:
detecting whether a driving mode switching instruction is received;
if the switching instruction is received, setting the manual gear shifting mechanism to be any forward gear, and controlling the vehicle to be switched to the automatic gear shifting mechanism from the manual gear shifting mechanism to work when the opening degree of a brake pedal is larger than a preset opening degree, so that the current driving mode is the automatic gear-shifting driving mode;
and if the switching instruction is not received, maintaining the current driving mode as a manual driving mode.
5. The method of claim 1, further comprising:
when the current driving mode is detected to be a manual gear driving mode, collecting second gear information of the manual gear shifting mechanism;
and matching the target vehicle torque corresponding to the second gear information, and controlling the output of a driving motor of the vehicle according to the target vehicle torque.
6. The method of any one of claims 1-5, further comprising:
calculating the current speed ratio of the vehicle during the running process of the vehicle;
calculating an actual gear of the vehicle according to the current speed ratio;
and carrying out overspeed protection on the vehicle according to the actual gear.
7. A control device of vehicle torque, characterized in that the vehicle includes a manual shift mechanism and an automatic shift mechanism, wherein the device comprises:
the detection module is used for detecting the current driving mode of the vehicle;
the first acquisition module is used for acquiring first gear information of the automatic gear shifting mechanism and acquiring second gear information of the manual gear shifting mechanism when the current driving mode is detected to be the automatic gear driving mode; and
and the control module is used for matching the target vehicle torque corresponding to the first gear information and the second gear information and controlling the output of a driving motor of the vehicle according to the target vehicle torque.
8. The apparatus according to claim 7, wherein when the second gear information is the first forward gear or the neutral gear, the control module is specifically configured to:
if the first gear information is a second forward gear, taking a first torque as the target vehicle torque, and controlling the output of a driving motor of the vehicle according to the first torque, wherein the first torque is less than or equal to the minimum value of the maximum allowable driving torque of the driving motor, a user requested torque and an overspeed protection torque;
and if the first gear information is a first reverse gear, taking a second torque as the target vehicle torque, and controlling the output of a driving motor of the vehicle according to the second torque, wherein the absolute value of the second torque is smaller than or equal to the minimum value of the absolute value of the maximum reverse driving torque of the driving motor, the absolute value of the torque requested by the user and the absolute value of the overspeed protection torque.
9. A vehicle, characterized by comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the vehicle torque control method according to any one of claims 1 to 6.
10. A computer-readable storage medium on which a computer program is stored, characterized in that the program is executed by a processor for implementing the control method of vehicle torque according to any one of claims 1 to 6.
CN202210287987.4A 2022-03-22 2022-03-22 Control method and device for vehicle torque, vehicle and storage medium Active CN114655033B (en)

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CN110696630A (en) * 2019-10-15 2020-01-17 神龙汽车有限公司 Control system and method compatible with automatic gear and manual gear electric automobile
CN111739379A (en) * 2020-06-15 2020-10-02 浙江鸿吉智能控制有限公司 Pure electric learner-driven vehicle that multi-scene used
CN113815427A (en) * 2020-06-19 2021-12-21 北京新能源汽车股份有限公司 Operation control method and device and electric automobile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103527761A (en) * 2013-10-29 2014-01-22 长城汽车股份有限公司 Control method for manual automatic integrated transmission assembly
EP3051182A1 (en) * 2015-01-28 2016-08-03 Magneti Marelli S.p.A. Management and control method of the gear change phases o a vehicle fitted with a manual or automated manual transmission and transmission apparatus for vehicles fitted with manual transmission or automated manual transmission
CN107599891A (en) * 2017-08-31 2018-01-19 北京新能源汽车股份有限公司 Gear switching method and apparatus
CN110696630A (en) * 2019-10-15 2020-01-17 神龙汽车有限公司 Control system and method compatible with automatic gear and manual gear electric automobile
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