CN112109714B - Vehicle forward gear neutral gear switching torque control method and device and vehicle - Google Patents
Vehicle forward gear neutral gear switching torque control method and device and vehicle Download PDFInfo
- Publication number
- CN112109714B CN112109714B CN202011039085.6A CN202011039085A CN112109714B CN 112109714 B CN112109714 B CN 112109714B CN 202011039085 A CN202011039085 A CN 202011039085A CN 112109714 B CN112109714 B CN 112109714B
- Authority
- CN
- China
- Prior art keywords
- torque
- vehicle
- feedback system
- gradually
- control unit
- 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.)
- Active
Links
- 230000007935 neutral effect Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 16
- 230000006641 stabilisation Effects 0.000 claims description 11
- 238000011105 stabilization Methods 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 9
- 239000013589 supplement Substances 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 description 12
- 230000000875 corresponding effect Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/02—Control of vehicle driving stability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0657—Engine torque
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Control Of Transmission Device (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a torque control method for neutral gear switching of a vehicle forward gear, which comprises the following steps: acquiring a gear shifting signal for switching a vehicle forward gear into a neutral gear; and according to the gear shifting signal, the vehicle control unit is used for indicating the vehicle body electronic stabilizing system to gradually reduce the torque value torque of the first preset cooperative braking feedback system and gradually increase the hydraulic braking torque, and when the torque of the cooperative braking feedback system is 0, the vehicle control unit is used for sending the gear shifting signal to the vehicle body electronic stabilizing system. The problem that when the whole vehicle responds to the torque of the cooperative braking feedback system, a driver requests to switch from a forward gear to a neutral gear, and ESP (electronic stability program) supplements hydraulic braking torque to cause the whole vehicle to rise dynamically, so that the vehicle body is more stable in the deceleration process, and the driving comfort is improved.
Description
Technical Field
The invention relates to the technical field of automobile control systems, in particular to a torque control method and device for neutral gear shifting of a forward gear of a vehicle and the vehicle.
Background
The automobile electronic control system generally comprises 3 parts in hardware structure: a sensor, an electronic control unit and an actuator. When the automobile runs, each sensor continuously detects the working condition information of the running of the automobile and transmits the information to the electronic control unit through the input interface in real time. When the electronic control unit receives the information, corresponding decision and processing are carried out according to a control program which is pre-programmed in the electronic control unit, a control signal is output to a corresponding actuator through an output interface of the electronic control unit, and the actuator executes a corresponding action after receiving the control signal, so that a certain preset function is realized.
The existing electronic control system of the automobile is not perfect enough, and when a driver steps on a brake to request braking and switches the automobile from a forward gear to a neutral gear, the whole automobile has an obvious towering dynamic sense.
Disclosure of Invention
Objects of the invention
The invention aims to provide a vehicle forward gear switching neutral torque control method, a vehicle forward gear switching neutral torque control device and a vehicle, and aims to solve the problem of vehicle body cocking caused by the fact that the vehicle is in the forward gear switching neutral gear.
(II) technical scheme
To solve the above problems, a first aspect of the present invention provides a torque control method for a vehicle forward shift neutral, comprising: acquiring a gear shifting signal for switching a vehicle forward gear into a neutral gear; based on the gear shifting signal, the vehicle control unit instructs the vehicle body electronic stabilization system to gradually reduce the torque value torque of the first preset cooperative braking feedback system and gradually increase the hydraulic braking torque; and when the torque of the cooperative braking feedback system is 0, the vehicle control unit sends the gear shifting signal to the vehicle body electronic stabilizing system.
Optionally, based on the gear shifting signal, the vehicle controller instructs the vehicle body electronic stability system to gradually decrease the first preset cooperative braking feedback system torque value, and gradually increase the hydraulic braking torque includes: based on the gear shifting signal, the vehicle controller maintains a forward gear request; the vehicle control unit instructs the vehicle body electronic stabilization system to gradually reduce the first preset cooperative braking feedback system torque value at a first preset rate and gradually increase the hydraulic braking torque at a second preset rate.
Optionally, the absolute value of the first preset rate is equal to the absolute value of the second preset rate.
Optionally, based on the gear shift signal, the vehicle controller instructs the vehicle body electronic stability system to gradually decrease the first preset cooperative braking feedback system torque value, and gradually increase the hydraulic braking torque further includes: and the vehicle body electronic stabilizing system responds to the indication of the vehicle control unit, gradually reduces the torque value of a second preset cooperative braking feedback system at the first preset speed, and gradually increases the hydraulic braking torque at the second preset speed.
Optionally, the second preset cooperative braking feedback system torque value is less than or equal to the first preset cooperative braking feedback system torque value.
Optionally, the first predetermined cooperative brake feedback system torque value is directly proportional to a depression depth of the brake pedal.
Optionally, based on the gear shift signal, the vehicle controller instructs the vehicle body electronic stability system to gradually decrease the first preset cooperative braking feedback system torque value, and gradually increase the hydraulic braking torque further includes: and converting the cooperative brake feedback system torque into electric energy.
According to another aspect of the present invention, there is provided a vehicle forward-range neutral shift torque control apparatus comprising: the signal acquisition module is used for acquiring a gear shifting signal for switching the vehicle forward gear into the neutral gear; and the vehicle control unit is used for indicating the vehicle body electronic stabilization system to gradually reduce the torque value torque of the first preset cooperative braking feedback system and gradually increase the hydraulic braking torque based on the gear shifting signal, and sending the gear shifting signal to the vehicle body electronic stabilization system when the torque of the cooperative braking feedback system is 0.
Optionally, the vehicle controller is specifically configured to maintain a forward gear request based on the shift signal, and instruct the vehicle body electronic stability system to gradually decrease the first preset cooperative braking feedback system torque value at a first preset rate, and gradually increase the hydraulic braking torque at a second preset rate.
Optionally, the absolute value of the first preset rate is equal to the absolute value of the second preset rate.
Optionally, the method further includes: and the vehicle body electronic stabilizing system is used for responding to the indication of the vehicle control unit, gradually reducing the torque value of a second preset cooperative braking feedback system at the first preset speed, and gradually increasing the hydraulic braking torque at the second preset speed.
Optionally, the second preset cooperative braking feedback system torque value is less than or equal to the first preset cooperative braking feedback system torque value.
Optionally, the first predetermined cooperative brake feedback system torque value is directly proportional to a depression depth of the brake pedal.
Optionally, the vehicle control unit is further configured to instruct the generator to convert the cooperative braking feedback system torque into electric energy.
According to a further aspect of the invention, a vehicle is provided, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method according to any one of the above aspects when executing the program.
(III) advantageous effects
The technical scheme of the invention has the following beneficial technical effects:
according to the invention, a gear shifting signal for switching the forward gear of the vehicle into the neutral gear is obtained; and according to the gear shifting signal, the vehicle control unit is used for indicating the vehicle body electronic stabilizing system to gradually reduce the torque value torque of the first preset cooperative braking feedback system and gradually increase the hydraulic braking torque, and when the torque of the cooperative braking feedback system is 0, the vehicle control unit is used for sending the gear shifting signal to the vehicle body electronic stabilizing system. The problem that when the whole vehicle responds to the torque of the cooperative braking feedback system, a driver requests to switch from a forward gear to a neutral gear, and ESP (electronic stability program) supplements hydraulic braking torque to cause the whole vehicle to rise dynamically, so that the vehicle body is more stable in the deceleration process, and the driving comfort is improved.
Drawings
FIG. 1 is a flowchart of a method of torque control for a vehicle forward shift neutral according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a method of torque control for a vehicle in forward-range neutral shift according to an alternate embodiment of the present invention;
FIG. 3 is a flowchart of a method of torque control for a vehicle in forward-shifted neutral according to another alternative embodiment of the present invention;
FIG. 4 is a block diagram schematic of a vehicle forward shift neutral torque control arrangement according to another aspect of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, in a first aspect of an embodiment of the present invention, there is provided a torque control method for a vehicle in forward-shift neutral, which may include:
s1: acquiring a gear shifting signal for switching a vehicle forward gear into a neutral gear;
s2: based on the gear shifting signal, a Vehicle Control Unit (VCU) instructs a Vehicle body electronic stability system to gradually reduce the torque value of a first preset cooperative braking feedback system and gradually increase the hydraulic braking torque;
s3: when the torque of the cooperative braking feedback system is 0, the vehicle control unit sends a gear shifting signal to the vehicle body electronic stabilizing system.
A cooperative brake feedback system: one of the ESP functions is that the ESP converts the depression depth of the driver's brake pedal into a braking torque demand and decomposes the braking torque demand into a hydraulic braking torque and a cooperative braking feedback system torque, wherein the hydraulic braking torque is executed by a conventional hydraulic braking system, the cooperative braking feedback system torque requests the MCU through the VCU to execute an electric braking torque, the hydraulic braking torque and the cooperative braking feedback system torque are in a complementary relationship, and one torque is increased while the other torque is decreased on the premise that the braking torque demand is not changed, wherein the cooperative braking feedback system torque is realized by the electric braking torque, and the electric motor serves as a generator and can convert the vehicle kinetic energy into electric energy to be stored in a battery; MCU: a motor controller.
The technical scheme of the embodiment solves the problems that when the whole vehicle responds to the torque of the cooperative braking feedback system, a driver requests to switch from a forward gear to a neutral gear, and the ESP supplements hydraulic braking torque to cause the whole vehicle to rise dynamically, so that the vehicle body is more stable in the deceleration process, and the driving comfort is improved.
In an alternative embodiment of the present invention, as shown in fig. 2, the vehicle control unit instructing the vehicle body electronic stability system to gradually decrease the first predetermined cooperative braking feedback system torque value and gradually increase the hydraulic braking torque based on the shift signal may include:
s21: based on the gear shifting signal, the vehicle controller maintains a forward gear request;
s22: the vehicle control unit instructs the vehicle body electronic stabilization system to gradually reduce the first preset cooperative braking feedback system torque value at a first preset rate and gradually increase the hydraulic braking torque at a second preset rate.
In the above embodiment, the driver requests to switch from forward to neutral while the VCU still maintains the forward request, the first predetermined cooperative braking feedback system torque value is the maximum cooperative braking feedback system torque limit value sent by the VCU to the ESP, and the torque limit value is set to a large decreasing gradient and gradually decreased to 0.
In an alternative embodiment of the present invention, the absolute values of the first predetermined rate and the second predetermined rate are equal. The rate of increase of the hydraulic braking torque is equal to the rate of decrease of the cooperative braking feedback system torque, and stability and comfort of the vehicle body can be guaranteed.
In an optional embodiment of the present invention, based on the shift signal, the vehicle control unit instructing the vehicle body electronic stability system to gradually decrease the first predetermined cooperative braking feedback system torque value and gradually increase the hydraulic braking torque may further include:
the vehicle body electronic stability system responds to the indication of the vehicle control unit, gradually reduces the torque value of the second preset cooperative braking feedback system at a first preset speed, and gradually increases the hydraulic braking torque at a second preset speed.
In an alternative embodiment of the present invention, the second predetermined coordinated brake feedback system torque value may be set to be less than or equal to the first predetermined coordinated brake feedback system torque value. Because the torque of the cooperative braking feedback system requested by the ESP cannot exceed the maximum cooperative braking feedback system torque limit value sent to the ESP by the VCU, that is, in the process, the torque of the CBRS requested by the ESP is gradually reduced by gradually reducing the maximum cooperative braking feedback system torque limit value sent to the ESP, the corresponding hydraulic braking torque is gradually increased, and the speed is obtained by the reduction gradient set by the maximum cooperative braking feedback system torque limit value sent to the ESP by the VCU, so that the speed can be changed according to the actual situation of the whole vehicle, and the situation that the whole vehicle has no towering feeling is ensured.
In an alternative embodiment of the present invention, the first predetermined cooperative brake feedback system torque value may be set to be proportional to a depression depth of the brake pedal. The proportional relation is set to be beneficial to the brake control of a driver, and the specific mapping relation between the torque value of the first preset cooperative brake feedback system and the stepping depth of the brake pedal can be set according to actual conditions.
In an alternative embodiment of the present invention, as shown in fig. 3, the vehicle control unit instructing the vehicle body electronic stabilization system to gradually decrease the first predetermined cooperative brake feedback system torque and gradually increase the hydraulic brake torque based on the shift signal may further include:
s23: and converting the cooperative brake feedback system torque into electric energy. The kinetic energy is recovered, so that the energy is saved, and the endurance mileage of the vehicle is improved.
In one embodiment of the invention, when the vehicle is responding to the cooperative braking feedback system torque, the driver requests to shift from forward to neutral while the VCU is still maintaining the forward request, a large decreasing gradient is set for the maximum cooperative braking feedback system torque limit sent by the VCU to the ESP, and the decreasing gradient is gradually decreased to 0, because the cooperative braking feedback system torque requested by the ESP cannot exceed the maximum cooperative braking feedback system torque limit sent by the VCU to the ESP, that is, during the process, the CBRS torque requested by the ESP is gradually decreased by the gradual decrease of the maximum cooperative braking feedback system torque limit sent by the ESP, the corresponding hydraulic braking torque is gradually increased, the increasing rate of the hydraulic braking torque is equal to the decreasing rate of the cooperative braking feedback system torque, and the decreasing rate is obtained by the decreasing gradient set for the maximum cooperative braking ESP system torque limit sent by the VCU, the method can be changed according to the actual condition of the whole vehicle, the situation that the whole vehicle does not rise dynamically is guaranteed, and when the torque of the cooperative braking feedback system sent by the ESP is reduced to 0, the VCU sends a neutral position state to the ESP, and the situation that the VCU responds because the torque of the cooperative braking feedback system does not exist at the moment, and the supplementary hydraulic braking torque does not occur.
When the driver requests the neutral gear, the VCU does not immediately send the gear state to the ESP, but sends the gear state after the torque of the cooperative braking feedback system requested by the ESP is reduced to 0;
the maximum cooperative braking feedback system torque limit value sent to the ESP by the VCU is controlled, so that the compensation rate of the hydraulic braking torque is controlled, and the problem of drivability is solved.
In another aspect of an embodiment of the present invention, as shown in fig. 4, there is provided a torque control device for a vehicle in forward-gear neutral shift, which may include:
the signal acquisition module is used for acquiring a gear shifting signal for switching the vehicle forward gear into the neutral gear;
and the vehicle control unit is used for indicating the vehicle body electronic stabilizing system to gradually reduce the torque value torque of the first preset cooperative braking feedback system and gradually increase the hydraulic braking torque based on the gear shifting signal, and sending the gear shifting signal to the vehicle body electronic stabilizing system when the torque of the cooperative braking feedback system is 0.
The device of the embodiment solves the problems that when the whole vehicle responds to the torque of the cooperative braking feedback system, a driver requests to switch from a forward gear to a neutral gear, and the ESP supplements hydraulic braking torque to cause the whole vehicle to rise dynamically, so that the vehicle body is more stable in the deceleration process, and the driving comfort is improved.
In an alternative embodiment of the present invention, the vehicle controller may be specifically configured to maintain the forward gear request based on the shift signal and instruct the body electronic stability system to gradually decrease the first predetermined cooperative brake feedback system torque value at a first predetermined rate and gradually increase the hydraulic brake torque at a second predetermined rate.
In the above embodiment, the driver requests to switch from forward to neutral while the VCU still maintains the forward request, the first predetermined cooperative braking feedback system torque value is the maximum cooperative braking feedback system torque limit value sent by the VCU to the ESP, and the torque limit value is set to a large decreasing gradient and gradually decreased to 0.
In an alternative embodiment of the present invention, the first predetermined rate may be set to be equal to the absolute value of the second predetermined rate. The rate of increase of the hydraulic braking torque is equal to the rate of decrease of the cooperative braking feedback system torque, and stability and comfort of the vehicle body can be guaranteed.
In an optional embodiment of the present invention, the method may further include:
and the vehicle body electronic stabilizing system is used for responding to the indication of the vehicle control unit, gradually reducing the torque value of the second preset cooperative braking feedback system at a first preset speed, and gradually increasing the hydraulic braking torque at a second preset speed.
In an alternative embodiment of the present invention, the second predetermined coordinated brake feedback system torque value may be set to be less than or equal to the first predetermined coordinated brake feedback system torque value. Because the torque of the cooperative braking feedback system requested by the ESP cannot exceed the maximum cooperative braking feedback system torque limit value sent to the ESP by the VCU, that is, in the process, the torque of the CBRS requested by the ESP is gradually reduced by gradually reducing the maximum cooperative braking feedback system torque limit value sent to the ESP, the corresponding hydraulic braking torque is gradually increased, and the speed is obtained by the reduction gradient set by the maximum cooperative braking feedback system torque limit value sent to the ESP by the VCU, so that the speed can be changed according to the actual situation of the whole vehicle, and the situation that the whole vehicle has no towering feeling is ensured.
In an alternative embodiment of the present invention, the first predetermined coordinated brake feedback system torque value is proportional to a depression depth of the brake pedal. The proportional relation is set to be beneficial to the brake control of a driver, and the specific mapping relation between the torque value of the first preset cooperative brake feedback system and the stepping depth of the brake pedal can be set according to actual conditions.
In an optional embodiment of the present invention, the vehicle control unit is further configured to instruct the generator to convert the cooperative braking feedback system torque into electric energy. The kinetic energy is recovered, so that the energy is saved, and the endurance mileage of the vehicle is improved.
In a further aspect of an embodiment of the present invention, there is provided a vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any one of the above-described embodiments when executing the program.
The vehicle in the embodiment solves the problems that when the whole vehicle responds to the torque of the cooperative braking feedback system, a driver requests to switch from a forward gear to a neutral gear, and the ESP supplements hydraulic braking torque to cause the whole vehicle to rise dynamically, so that the vehicle body is more stable in the deceleration process, and the driving comfort is improved.
The invention aims to protect a torque control method for switching neutral gear of a vehicle forward gear, which comprises the following steps: acquiring a gear shifting signal for switching a vehicle forward gear into a neutral gear; and according to the gear shifting signal, the vehicle control unit is used for indicating the vehicle body electronic stabilizing system to gradually reduce the torque value torque of the first preset cooperative braking feedback system and gradually increase the hydraulic braking torque, and when the torque of the cooperative braking feedback system is 0, the vehicle control unit is used for sending the gear shifting signal to the vehicle body electronic stabilizing system. The problem that when the whole vehicle responds to the torque of the cooperative braking feedback system, a driver requests to switch from a forward gear to a neutral gear, and ESP (electronic stability program) supplements hydraulic braking torque to cause the whole vehicle to rise dynamically, so that the vehicle body is more stable in the deceleration process, and the driving comfort is improved.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (15)
1. A method of torque control for a vehicle to shift forward into neutral comprising:
acquiring a gear shifting signal for switching a vehicle forward gear into a neutral gear;
based on the gear shifting signal, the vehicle controller maintains a forward gear request; the vehicle control unit instructs the vehicle body electronic stabilization system to gradually reduce the torque value of the first preset cooperative braking feedback system and gradually increase the hydraulic braking torque;
and when the torque of the cooperative braking feedback system is 0, the vehicle control unit sends the gear shifting signal to the vehicle body electronic stabilizing system.
2. The method of claim 1, wherein the vehicle control unit maintains a forward gear request based on the shift signal; the vehicle control unit instructs the vehicle body electronic stabilization system to gradually reduce the torque value of the first preset cooperative braking feedback system, and gradually increase the hydraulic braking torque comprises:
and the vehicle control unit instructs the vehicle body electronic stabilization system to gradually reduce the first preset cooperative braking feedback system torque value at a first preset speed and gradually increase the hydraulic braking torque at a second preset speed.
3. The method of claim 2, wherein the first predetermined rate and the second predetermined rate are equal in absolute value.
4. The method of claim 2, wherein the vehicle control unit instructing the body electronics stability system to gradually decrease the first predetermined coordinated brake feedback system torque value and gradually increase the hydraulic braking torque based on the shift signal further comprises:
and the vehicle body electronic stabilizing system responds to the indication of the vehicle control unit, gradually reduces the torque value of a second preset cooperative braking feedback system at the first preset speed, and gradually increases the hydraulic braking torque at the second preset speed.
5. The method of claim 4, wherein the second predetermined coordinated brake feedback system torque value is less than or equal to the first predetermined coordinated brake feedback system torque value.
6. The method of claim 1, wherein the first predetermined coordinated brake feedback system torque value is proportional to a depth of depression of a brake pedal.
7. The method of any of claims 1-6, wherein, based on the shift signal, the vehicle control unit instructing the body electronics stability system to gradually decrease the first predetermined coordinated brake feedback system torque value and gradually increase the hydraulic braking torque further comprises:
and converting the cooperative brake feedback system torque into electric energy.
8. A vehicle forward-range neutral shift torque control device, comprising:
the signal acquisition module is used for acquiring a gear shifting signal for switching the vehicle forward gear into the neutral gear;
and the vehicle control unit is used for keeping a forward gear request based on the gear shifting signal, instructing the vehicle body electronic stabilization system to gradually reduce a first preset cooperative braking feedback system torque value, gradually increasing a hydraulic braking torque, and sending the gear shifting signal to the vehicle body electronic stabilization system when the cooperative braking feedback system torque is 0.
9. The apparatus of claim 8, wherein the vehicle controller is specifically configured to instruct the body electronic stability system to gradually decrease the first predetermined coordinated brake feedback system torque value at a first predetermined rate and gradually increase the hydraulic brake torque at a second predetermined rate based on the shift signal.
10. The apparatus of claim 9, wherein the first predetermined rate is equal to the second predetermined rate in absolute value.
11. The apparatus of claim 9, further comprising:
and the vehicle body electronic stabilizing system is used for responding to the indication of the vehicle control unit, gradually reducing the torque value of a second preset cooperative braking feedback system at the first preset speed, and gradually increasing the hydraulic braking torque at the second preset speed.
12. The apparatus of claim 9, wherein a second predetermined coordinated brake feedback system torque value is less than or equal to the first predetermined coordinated brake feedback system torque value.
13. The apparatus of claim 8, wherein the first predetermined coordinated brake feedback system torque value is proportional to a depth of depression of a brake pedal.
14. The apparatus of any of claims 8-13, wherein the vehicle control unit is further configured to instruct the generator to convert the cooperative brake feedback system torque to electrical energy.
15. A vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of any one of claims 1 to 7 when executing the program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011039085.6A CN112109714B (en) | 2020-09-28 | 2020-09-28 | Vehicle forward gear neutral gear switching torque control method and device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011039085.6A CN112109714B (en) | 2020-09-28 | 2020-09-28 | Vehicle forward gear neutral gear switching torque control method and device and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112109714A CN112109714A (en) | 2020-12-22 |
| CN112109714B true CN112109714B (en) | 2022-01-28 |
Family
ID=73797849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011039085.6A Active CN112109714B (en) | 2020-09-28 | 2020-09-28 | Vehicle forward gear neutral gear switching torque control method and device and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112109714B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643964B (en) * | 2021-04-08 | 2023-07-21 | 长城汽车股份有限公司 | Vehicle braking method and device, storage medium and vehicle |
| CN114475610B (en) * | 2022-02-21 | 2023-10-20 | 同济大学 | Vehicle shrugging phenomenon determination method, system and computer readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990002038A (en) * | 1997-06-18 | 1999-01-15 | 박병재 | Hydraulic control device for automatic transmission |
| CN108025657A (en) * | 2015-11-26 | 2018-05-11 | 加特可株式会社 | The control device and control method of electric vehicle |
| CN111284476A (en) * | 2018-12-07 | 2020-06-16 | 现代自动车株式会社 | Hybrid vehicle and transmission control method for hybrid vehicle |
| CN111572357A (en) * | 2020-04-09 | 2020-08-25 | 吉利汽车研究院（宁波）有限公司 | Downshift deceleration compensation method and device, vehicle and storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2911556B1 (en) * | 2007-01-24 | 2009-08-28 | Renault Sas | METHOD FOR CONTROLLING THE OPERATION OF A MOTOR-PROPELLER GROUP |
| JP2010043584A (en) * | 2008-08-11 | 2010-02-25 | Toyota Motor Corp | Controller for vehicle |
| US11136011B2 (en) * | 2018-10-16 | 2021-10-05 | Ford Global Technologies, Llc | Method and system for vehicle control |
-
2020
- 2020-09-28 CN CN202011039085.6A patent/CN112109714B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990002038A (en) * | 1997-06-18 | 1999-01-15 | 박병재 | Hydraulic control device for automatic transmission |
| CN108025657A (en) * | 2015-11-26 | 2018-05-11 | 加特可株式会社 | The control device and control method of electric vehicle |
| CN111284476A (en) * | 2018-12-07 | 2020-06-16 | 现代自动车株式会社 | Hybrid vehicle and transmission control method for hybrid vehicle |
| CN111572357A (en) * | 2020-04-09 | 2020-08-25 | 吉利汽车研究院（宁波）有限公司 | Downshift deceleration compensation method and device, vehicle and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112109714A (en) | 2020-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8010270B2 (en) | Vehicle controller and control method | |
| CN112109714B (en) | Vehicle forward gear neutral gear switching torque control method and device and vehicle | |
| US8162088B2 (en) | Speed control device and motor vehicle having such a speed control device | |
| CN111169290B (en) | Vehicle running speed control method and system | |
| CN107791887B (en) | Electric automobile hill start auxiliary control method | |
| CN110962614A (en) | Energy recovery method for pure electric vehicle | |
| CN112406850B (en) | Hybrid vehicle, control method and control system thereof, and storage medium | |
| EP2907698A1 (en) | Brake lamp control device | |
| US11505071B2 (en) | Regenerative braking control method and regenerative braking control device | |
| US20230382385A1 (en) | Braking force control device | |
| JP2017165151A (en) | Brake device for electric vehicle | |
| US20210171052A1 (en) | Control device, control method and non-transitory storage medium | |
| CN111319595A (en) | Vehicle braking method, device and system and vehicle | |
| KR20140083398A (en) | Method of regenerative brake cooperation control | |
| CN104670239A (en) | Vehicle body vibration control device for vehicle | |
| CN108025716B (en) | Device and method for automatically adapting a brake force boost to different brake loads | |
| CN112721647A (en) | Brake control system and brake control method of electric automobile and electric automobile | |
| JP2012060753A (en) | Control device of electric vehicle | |
| CN109606341B (en) | Multi-mode electromechanical hybrid brake decoupling method | |
| EP4347341A1 (en) | Method and system with selectable multimode control of regenerative braking torque limitation | |
| CN113879306B (en) | Vehicle drive system | |
| JP2019151258A (en) | Regeneration control device | |
| CN114430719B (en) | vehicle braking device | |
| CN113771836B (en) | Torque chain control method and device for intervention of electronic stabilization system | |
| CN112849123A (en) | Method and apparatus for controlling vehicle torque |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |