CN113085579A - Control method, system, equipment and storage medium for P gear of electric vehicle - Google Patents
Control method, system, equipment and storage medium for P gear of electric vehicle Download PDFInfo
- Publication number
- CN113085579A CN113085579A CN202110461004.XA CN202110461004A CN113085579A CN 113085579 A CN113085579 A CN 113085579A CN 202110461004 A CN202110461004 A CN 202110461004A CN 113085579 A CN113085579 A CN 113085579A
- Authority
- CN
- China
- Prior art keywords
- gear
- electric automobile
- vehicle
- motor
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 claims description 17
- 230000003068 static effect Effects 0.000 claims description 15
- 230000005484 gravity Effects 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- B60L15/2009—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 for braking
- B60L15/2018—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 for braking for braking on a slope
-
- 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
- B60L2240/423—Torque
-
- 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
- B60L2240/60—Navigation input
- B60L2240/64—Road conditions
- B60L2240/642—Slope of road
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a control method, a system, equipment and a storage medium for a P gear of an electric vehicle. On one hand, the invention directly detects the stop state of the vehicle by using the inertia measuring unit, and applies driving torque to the vehicle according to the stop state of the vehicle when the vehicle goes out of the P gear, thereby reducing the jitter and abnormal noise when the vehicle goes out of the P gear. On the other hand, when the vehicle control unit receives the information that the parking brake is successfully unlocked, the information of the gear required by the driver is sent to the instrument, and if the parking brake is failed to unlock or overtime, the information of the gear P is sent to the instrument, so that the instrument is guaranteed to always display correct gear information, misleading of a wrong gear to the driver is prevented, and driving safety is guaranteed.
Description
Technical Field
The invention relates to a control method, a system, equipment and a storage medium for a P gear of an electric automobile, and belongs to the technical field of parking control of electric automobiles.
Background
In the world environment of sustainable energy development, electric vehicles are rapidly developed. Unlike a conventional automobile, an electric automobile can implement switching between D-range and R-range of the vehicle by changing the rotation direction of a motor. When the electric automobile is in the P gear, the vehicle controller stops the torque output of the motor according to the vehicle state, and the parking brake works.
The electric automobile realizes the P gear by cutting off the torque output of the motor and the work of the parking brake. When a vehicle is in a P gear on a slope, due to the gravity component, a large torque needs to be overcome when the parking brake is unlocked, or the unlocking of the parking brake fails due to the large unlocking resistance of the parking brake, or the torsion energy accumulated by a transmission system is released due to the sudden unlocking of the parking brake, so that the whole vehicle has large vibration and abnormal noise. The display of the instrument gear position in the unlocking/locking process is also a problem to be solved because the parking brake is in the unlocking and locking process for a long time. In addition, in the prior art, the acceleration sensor is used for calculating and indirectly obtaining the information of the gradient of the stopped vehicle, and the information of the gradient has errors.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method, the system, the equipment and the storage medium for controlling the P gear of the electric automobile solve the problems of entering the P gear and exiting the P gear of the electric automobile.
The invention adopts the following technical scheme for solving the technical problems:
a control method for P gear of an electric automobile comprises a control method for entering the P gear of the electric automobile and a control method for exiting the P gear of the electric automobile,
the control method for entering the P gear of the electric automobile comprises the following steps:
step A1, detecting a P gear entering request of a driver;
step A2, when a P gear entering request of a driver is detected, starting timing for the first time and simultaneously judging whether the electric automobile meets the P gear entering condition;
step A3, when the electric automobile does not meet the condition of entering the P gear, prompting the driver that the P gear can not be entered; when the electric automobile meets the condition of entering the P gear, controlling the motor to reduce the output torque;
step A4, when the output torque of the motor is lower than a second set threshold value, controlling the electric automobile to enter a P gear;
step A5, when the electric automobile successfully enters the P gear, displaying the P gear to be shifted; when the electric automobile fails to enter the P gear or the first time of timing exceeds a third set threshold value, displaying the N gear;
the control method for the electric automobile to go out of the P gear comprises the following steps:
step B1, detecting a P gear output request of the driver;
step B2, when a P gear output request of a driver is detected, calculating a gradient value of a position where the electric automobile is located when the electric automobile is static;
step B3, calculating the output torque of the motor according to the gradient value, controlling the parking brake to unlock, controlling the output torque of the motor and timing for the second time;
step B4, when the time counted for the second time is larger than a fourth set threshold value, controlling the motor to stop outputting the torque;
step B5, the parking brake is successfully unlocked, and the gear required by the driver is displayed; and the unlocking of the parking brake fails, and the P gear is displayed.
As a preferable mode of the control method of the present invention, in step a2, the P-range entering condition is that the vehicle speed of the electric vehicle is lower than a first set threshold.
As a preferable mode of the control method of the present invention, the third set threshold of step a5 is a set time from when the driver engages the P range to when the electric vehicle enters the P range.
As a preferable mode of the control method of the invention, the calculating of the output torque of the motor according to the gradient in step B3 includes the following three cases:
when the head of the electric automobile faces downwards, namely the electric automobile is in a downhill condition, the slope value of the position of the electric automobile when the electric automobile is static is a negative value, and the control motor outputs a negative torque according to the slope value to offset the component force of the gravity applied to the electric automobile downwards along the slope;
when the head of the electric automobile is upward, namely the electric automobile is in an upward slope condition, the slope value of the position of the electric automobile when the electric automobile is static is a positive value, and the control motor outputs a positive torque according to the slope value to offset the component force of the gravity applied to the electric automobile downward along the slope;
when the battery car is on the horizontal ground, the slope value of the position of the electric car when the electric car is static is zero, and the output torque of the motor is also zero.
A control system for P gear of an electric vehicle comprises a vehicle control unit, a P gear switch, a vehicle speed sensor, an instrument display, a motor controller, an inertia measurement unit and a parking controller; the P-gear switch, the vehicle speed sensor, the instrument display, the motor controller, the inertia measurement unit and the parking controller are respectively connected with the whole vehicle controller, the motor controller is connected with a motor of the electric vehicle, and the parking controller is connected with a parking brake of the electric vehicle;
the vehicle speed sensor is used for detecting a vehicle speed signal and transmitting the vehicle speed signal to the vehicle control unit;
the inertia measurement unit is used for calculating a gradient value of a position where the electric automobile is located when the electric automobile is static and transmitting the gradient value to the whole automobile controller;
the P gear switch is used for detecting whether a driver sends a P gear entering or exiting request and transmitting the detected P gear entering or exiting request to the vehicle control unit;
the vehicle control unit is used for starting timing for the first time and simultaneously judging whether the electric vehicle meets a P gear entering condition when receiving a P gear entering request, if not, prompting a driver through an instrument display, if so, controlling the motor to reduce the output torque through the motor controller, and controlling the electric vehicle to enter the P gear when detecting that the output torque is lower than a second set threshold value; when the electric automobile successfully enters the P gear, displaying the P gear through the instrument display; when the electric automobile fails to enter the P gear or the first time of timing exceeds a third set threshold value, displaying the N gear through an instrument display;
the vehicle controller is also used for calculating a gradient value of a position where the electric vehicle is located when the electric vehicle is static by using the inertia measurement unit when a P-gear output request is received, calculating the output torque of the motor according to the gradient value, controlling the parking brake to be unlocked by the parking controller, controlling the output torque of the motor by the motor controller and timing for the second time; when the time of the second time is greater than a fourth set threshold value, the motor is controlled to stop outputting the torque through the motor controller; the parking brake is successfully unlocked, and the gear required by the driver is displayed through an instrument display; and (5) the parking brake fails to be unlocked, and the P gear is displayed through the instrument display.
Computer device comprising a memory, a processor and a computer program stored in said memory and executable on said processor, characterized in that said processor implements the steps of the control method of the P range of the electric vehicle when executing said computer program.
A computer-readable storage medium, in which a computer program is stored, wherein the computer program, when being executed by a processor, implements the steps of the method for controlling the P range of an electric vehicle.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
1. in the parking brake process, the vehicle controller firstly cuts off power output, and when the torque is reduced to a certain threshold value, the vehicle speed is lower than the certain threshold value, and then the P gear is switched in, so that the impact on the parking brake caused by the high vehicle speed and large torque entering the P gear is prevented, and the mechanical structure of the parking brake is prevented from being damaged.
2. When the parking brake is unlocked, the vehicle control unit firstly controls the motor to output torque opposite to the component force of gravity to offset the component force of gravity along the gradient, so that the problem of large noise of P gear is solved, wherein the unlocking failure or vehicle shaking caused by too large resistance of the parking brake is prevented.
3. The invention solves the problem of instrument gear display of the electric automobile in the P gear and the P gear.
4. The invention utilizes the inertial measurement unit IMU to directly calculate the state of measurement stop.
Drawings
FIG. 1 is a flowchart of a control method for entering P-range of an electric vehicle according to the present invention.
FIG. 2 is a flowchart of a control method for an electric vehicle to go out of P-range according to the present invention.
FIG. 3 is a block diagram of a control system for P-range of an electric vehicle according to 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. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The invention provides a P gear control method of an electric automobile, which comprises a control method for entering the P gear of the electric automobile and a control method for exiting the P gear of the electric automobile.
The control method for entering the P gear of the electric automobile as shown in fig. 1 comprises the following steps:
step 1: the vehicle control unit detects a P gear entering request of a driver;
step 2: when the vehicle control unit detects a P-gear entering request of a driver, judging whether the electric vehicle meets a P-gear entering condition (namely whether the vehicle speed meets the condition);
and step 3: when the speed does not accord with the condition that the electric automobile enters the P gear, the instrument prompts a driver that the speed is too high and the electric automobile cannot enter the P gear; when the speed of the electric vehicle meets the condition of entering the P gear, the vehicle control unit controls the motor to gradually stop outputting the torque;
and 4, step 4: when the vehicle control unit detects that the torque output by the motor is lower than a threshold value T1, the vehicle is controlled to enter a P gear;
and 5: when the electric automobile successfully enters the P gear, the meter displays to shift into the P gear; and if the electric automobile fails to enter the P gear or overtime, the meter displays the N gear.
The control method for the electric vehicle to go out of the P gear comprises the following steps as shown in FIG. 2:
step 6: the vehicle control unit detects a P gear output request of a driver;
and 7: when the vehicle control unit detects a P-gear output request of a driver, the gradient of the position of the electric vehicle when the electric vehicle is static is calculated by using the inertial measurement unit IMU;
and 8: calculating the output torque of the motor according to the gradient, and controlling the motor to output the torque and time while controlling the parking brake to be unlocked by the vehicle control unit;
the road gradient information detected by the inertial measurement unit IMU specifically includes:
step 8.1: under the condition that the vehicle head faces downwards, when a driver has a P-gear request, the vehicle control unit controls the motor to output a negative torque according to the slope value to counteract downward component force of gravity and start timing, and then an unlocking instruction is sent to the parking brake, specifically, the component force is the component force of the gravity of the vehicle along the downward slope, and the torque output by the motor is used for preventing the electric vehicle from shaking when the parking brake is unlocked due to the action of the gravity. And when the Time reaches a set threshold value Time1, the vehicle control unit controls the motor to stop outputting the torque. As a certain time is needed for unlocking the parking brake, when the vehicle control unit receives the information that the parking brake is successfully unlocked, the information of the gear required by the driver is sent to the instrument, and if the parking brake is failed to be unlocked or overtime happens, P-gear information is sent to the instrument.
Step 8.2: under the condition that the vehicle head faces upwards, when a driver has a P-gear request, the vehicle control unit outputs a positive torque according to the gradient value obtained by the inertia measurement unit to offset a downward component force of gravity and starts timing, and then sends an unlocking instruction to the parking brake. And when the Time reaches a set threshold value Time1, the vehicle control unit controls the motor to stop outputting the torque. As a certain time is needed for unlocking the parking brake, when the vehicle control unit receives the information that the parking brake is successfully unlocked, the information of the gear required by the driver is sent to the instrument, and if the parking brake is failed to be unlocked or overtime happens, P-gear information is sent to the instrument.
Step 8.3: if the electric automobile is on the horizontal ground, the gradient obtained by the inertia measuring unit is zero, and therefore the output torque of the motor is calculated to be zero.
And step 9: when the Time is greater than the threshold value Time1, controlling the motor to stop outputting the torque;
step 10: the parking brake is successfully unlocked, and the instrument displays the gear required by the driver; and if the unlocking of the parking brake fails or the time is out, the meter displays the P gear.
Fig. 3 is a block diagram of a P-range control system of an electric vehicle according to the present invention. The system comprises a vehicle control unit, a P-gear switch, a vehicle speed sensor, an instrument display, a motor controller, an inertia measurement unit and a parking controller; the P-gear switch, the vehicle speed sensor, the instrument display, the motor controller, the inertia measurement unit and the parking controller are respectively connected with the whole vehicle controller, the motor controller is connected with a motor of the electric vehicle, and the parking controller is connected with a parking brake of the electric vehicle;
the vehicle speed sensor is used for detecting a vehicle speed signal and transmitting the vehicle speed signal to the vehicle control unit;
the inertia measurement unit is used for calculating a gradient value of a position where the electric automobile is located when the electric automobile is static and transmitting the gradient value to the whole automobile controller;
the P gear switch is used for detecting whether a driver sends a P gear access or P gear exit request or not and transmitting the detected P gear access or P gear exit request to the vehicle control unit;
the vehicle control unit is used for starting timing for the first time and simultaneously judging whether the electric vehicle meets a P gear entering condition or not when receiving a P gear entering request, prompting a driver through an instrument display if the P gear entering condition is not met, controlling the motor to reduce the output torque through the motor controller if the P gear entering condition is met, and controlling the electric vehicle to enter the P gear when detecting that the output torque is lower than a second set threshold value; when the electric automobile successfully enters the P gear, displaying the P gear through the instrument display; when the electric automobile fails to enter the P gear or the first time of timing exceeds a third set threshold value, displaying the N gear through an instrument display;
the vehicle control unit is also used for calculating a gradient value of a position where the electric vehicle is positioned when the electric vehicle is static by using the inertia measurement unit when receiving a P-gear output request, calculating the output torque of the motor according to the gradient value, controlling the parking brake to be unlocked by the parking controller, controlling the output torque of the motor by the motor controller and timing for the second time; when the time of the second time is greater than a fourth set threshold value, the motor is controlled to stop outputting the torque through the motor controller; the parking brake is successfully unlocked, and the gear required by the driver is displayed through an instrument display; and (5) the parking brake fails to be unlocked, and the P gear is displayed through the instrument display.
On one hand, the invention directly detects the stop state of the vehicle by using the inertia measuring unit, and applies driving torque to the vehicle according to the stop state of the vehicle when the vehicle goes out of the P gear, thereby reducing the jitter and abnormal noise when the vehicle goes out of the P gear. On the other hand, when the vehicle control unit receives the information that the parking brake is successfully unlocked, the information of the gear required by the driver is sent to the instrument, and if the parking brake is failed to unlock or overtime, the information of the gear P is sent to the instrument, so that the instrument is guaranteed to always display correct gear information, misleading of a wrong gear to the driver is prevented, and driving safety is guaranteed.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (7)
1. A control method of P gear of an electric automobile comprises a control method of entering the P gear of the electric automobile and a control method of exiting the P gear of the electric automobile,
the control method for entering the P gear of the electric automobile comprises the following steps:
step A1, detecting a P gear entering request of a driver;
step A2, when a P gear entering request of a driver is detected, starting timing for the first time and simultaneously judging whether the electric automobile meets the P gear entering condition;
step A3, when the electric automobile does not meet the condition of entering the P gear, prompting the driver that the P gear can not be entered; when the electric automobile meets the condition of entering the P gear, controlling the motor to reduce the output torque;
step A4, when the output torque of the motor is lower than a second set threshold value, controlling the electric automobile to enter a P gear;
step A5, when the electric automobile successfully enters the P gear, displaying the P gear to be shifted; when the electric automobile fails to enter the P gear or the first time of timing exceeds a third set threshold value, displaying the N gear;
the control method for the electric automobile to go out of the P gear comprises the following steps:
step B1, detecting a P gear output request of the driver;
step B2, when a P gear output request of a driver is detected, calculating a gradient value of a position where the electric automobile is located when the electric automobile is static;
step B3, calculating the output torque of the motor according to the gradient value, controlling the parking brake to unlock, controlling the output torque of the motor and timing for the second time;
step B4, when the time counted for the second time is larger than a fourth set threshold value, controlling the motor to stop outputting the torque;
step B5, the parking brake is successfully unlocked, and the gear required by the driver is displayed; and the unlocking of the parking brake fails, and the P gear is displayed.
2. The method for controlling the P range of the electric vehicle according to claim 1, wherein the P range entering condition of step a2 is that the speed of the electric vehicle is lower than a first set threshold.
3. The method for controlling the P range of the electric vehicle according to claim 1, wherein the third set threshold of step a5 is the set time from the beginning of the P range shift by the driver to the P range shift by the electric vehicle.
4. The method for controlling the P range of the electric vehicle according to claim 1, wherein the step B3 of calculating the output torque of the motor according to the gradient comprises the following three conditions:
when the head of the electric automobile faces downwards, namely the electric automobile is in a downhill condition, the slope value of the position of the electric automobile when the electric automobile is static is a negative value, and the control motor outputs a negative torque according to the slope value to offset the component force of the gravity applied to the electric automobile downwards along the slope;
when the head of the electric automobile is upward, namely the electric automobile is in an upward slope condition, the slope value of the position of the electric automobile when the electric automobile is static is a positive value, and the control motor outputs a positive torque according to the slope value to offset the component force of the gravity applied to the electric automobile downward along the slope;
when the battery car is on the horizontal ground, the slope value of the position of the electric car when the electric car is static is zero, and the output torque of the motor is also zero.
5. A control system for P gear of an electric vehicle is characterized by comprising a vehicle control unit, a P gear switch, a vehicle speed sensor, an instrument display, a motor controller, an inertia measurement unit and a parking controller; the P-gear switch, the vehicle speed sensor, the instrument display, the motor controller, the inertia measurement unit and the parking controller are respectively connected with the whole vehicle controller, the motor controller is connected with a motor of the electric vehicle, and the parking controller is connected with a parking brake of the electric vehicle;
the vehicle speed sensor is used for detecting a vehicle speed signal and transmitting the vehicle speed signal to the vehicle control unit;
the inertia measurement unit is used for calculating a gradient value of a position where the electric automobile is located when the electric automobile is static and transmitting the gradient value to the whole automobile controller;
the P gear switch is used for detecting whether a driver sends a P gear entering or exiting request and transmitting the detected P gear entering or exiting request to the vehicle control unit;
the vehicle control unit is used for starting timing for the first time and simultaneously judging whether the electric vehicle meets a P gear entering condition when receiving a P gear entering request, if not, prompting a driver through an instrument display, if so, controlling the motor to reduce the output torque through the motor controller, and controlling the electric vehicle to enter the P gear when detecting that the output torque is lower than a second set threshold value; when the electric automobile successfully enters the P gear, displaying the P gear through the instrument display; when the electric automobile fails to enter the P gear or the first time of timing exceeds a third set threshold value, displaying the N gear through an instrument display;
the vehicle controller is also used for calculating a gradient value of a position where the electric vehicle is located when the electric vehicle is static by using the inertia measurement unit when a P-gear output request is received, calculating the output torque of the motor according to the gradient value, controlling the parking brake to be unlocked by the parking controller, controlling the output torque of the motor by the motor controller and timing for the second time; when the time of the second time is greater than a fourth set threshold value, the motor is controlled to stop outputting the torque through the motor controller; the parking brake is successfully unlocked, and the gear required by the driver is displayed through an instrument display; and (5) the parking brake fails to be unlocked, and the P gear is displayed through the instrument display.
6. Computer arrangement comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor when executing the computer program carries out the steps of the method for controlling the P range of an electric vehicle according to any of claims 1-4.
7. A computer-readable storage medium, which stores a computer program, wherein the computer program, when executed by a processor, implements the steps of the method for controlling P-range of an electric vehicle according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461004.XA CN113085579A (en) | 2021-04-27 | 2021-04-27 | Control method, system, equipment and storage medium for P gear of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461004.XA CN113085579A (en) | 2021-04-27 | 2021-04-27 | Control method, system, equipment and storage medium for P gear of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113085579A true CN113085579A (en) | 2021-07-09 |
Family
ID=76680298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110461004.XA Pending CN113085579A (en) | 2021-04-27 | 2021-04-27 | Control method, system, equipment and storage medium for P gear of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113085579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201889A (en) * | 2023-05-05 | 2023-06-02 | 盛瑞传动股份有限公司 | Transmission main oil way oil pressure control method, equipment, medium, transmission and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09191507A (en) * | 1996-01-11 | 1997-07-22 | Honda Motor Co Ltd | Control device for electric motor vehicle |
| CN104553886A (en) * | 2014-12-30 | 2015-04-29 | 北京现代汽车有限公司 | Automatic electric vehicle parking control method and automatic electric vehicle parking control device |
| CN109466341A (en) * | 2018-11-22 | 2019-03-15 | 北京长城华冠汽车科技股份有限公司 | The control method of electric car, the control system of electric car and vehicle |
| CN109747433A (en) * | 2018-12-29 | 2019-05-14 | 中国第一汽车股份有限公司 | A kind of electric car P gear control method |
| CN111907339A (en) * | 2020-07-08 | 2020-11-10 | 宝能(广州)汽车研究院有限公司 | Vehicle slope starting control method and device and vehicle |
-
2021
- 2021-04-27 CN CN202110461004.XA patent/CN113085579A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09191507A (en) * | 1996-01-11 | 1997-07-22 | Honda Motor Co Ltd | Control device for electric motor vehicle |
| CN104553886A (en) * | 2014-12-30 | 2015-04-29 | 北京现代汽车有限公司 | Automatic electric vehicle parking control method and automatic electric vehicle parking control device |
| CN109466341A (en) * | 2018-11-22 | 2019-03-15 | 北京长城华冠汽车科技股份有限公司 | The control method of electric car, the control system of electric car and vehicle |
| CN109747433A (en) * | 2018-12-29 | 2019-05-14 | 中国第一汽车股份有限公司 | A kind of electric car P gear control method |
| CN111907339A (en) * | 2020-07-08 | 2020-11-10 | 宝能(广州)汽车研究院有限公司 | Vehicle slope starting control method and device and vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201889A (en) * | 2023-05-05 | 2023-06-02 | 盛瑞传动股份有限公司 | Transmission main oil way oil pressure control method, equipment, medium, transmission and vehicle |
| CN116201889B (en) * | 2023-05-05 | 2023-09-08 | 盛瑞传动股份有限公司 | Transmission main oil way oil pressure control method, equipment, medium, transmission and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110345243B (en) | Automobile gear control method and system, vehicle-mounted terminal and storage medium | |
| CN107298034B (en) | Method for reducing vibration during release of parking gear of environment-friendly vehicle | |
| US8504240B2 (en) | Alternator controlling apparatus | |
| US11634036B2 (en) | Vehicle having motor and method of controlling the same to prevent collision thereof | |
| KR20170012301A (en) | Method, device, and system for generating driving behavior guidance information | |
| CN103287433B (en) | Reduce noise and the method for vibration of PWTN during electromotor starts | |
| EP3305618B1 (en) | Method of controlling hybrid electric vehicle | |
| CN109747433A (en) | A kind of electric car P gear control method | |
| US20150151739A1 (en) | Method and apparatus for monitoring unintended vehicle motion | |
| JP4449873B2 (en) | Step-over detection device for vehicle start and driving force control device for start-up over step | |
| CN114454887B (en) | Vehicle control method and device and vehicle | |
| CN113085579A (en) | Control method, system, equipment and storage medium for P gear of electric vehicle | |
| CN110594410A (en) | Transmission gear identification method and vehicle | |
| WO2018070124A1 (en) | Power supply control device, and retrofitted electronic equipment for vehicle | |
| JPH11180182A (en) | Running control unit of automobile | |
| CN109693670B (en) | Control method, device and system for slip-friction starting of vehicle clutch | |
| US20130046450A1 (en) | Driving resistance-dependent shifting delay | |
| CN105523021A (en) | Shock detection system and shock detection method with vehicle at rest | |
| CN111022631B (en) | Electric automobile, gear shifting control method thereof and driving control device | |
| US20080046166A1 (en) | Method for detecting a driving situation ahead | |
| US20210331592A1 (en) | Method and drive control device for operating at least two electric drive machines in the event of a change in load and motor vehicle with a drive control device | |
| CN110920414A (en) | Simulated flameout method for electric and manual gear vehicle, gear shifting control method and electric and manual gear vehicle | |
| CN114576351B (en) | Gearbox gear control method and device and vehicle | |
| CN111645534B (en) | Slope-sliding-prevention control method and control system for pure electric vehicle | |
| KR101134904B1 (en) | Failure Detection Method for Acceleration Sensor in Vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210709 |
|
| RJ01 | Rejection of invention patent application after publication |