CN111993903A - Method and system for controlling gradual descent of automobile steep slope - Google Patents
Method and system for controlling gradual descent of automobile steep slope Download PDFInfo
- Publication number
- CN111993903A CN111993903A CN202010857215.0A CN202010857215A CN111993903A CN 111993903 A CN111993903 A CN 111993903A CN 202010857215 A CN202010857215 A CN 202010857215A CN 111993903 A CN111993903 A CN 111993903A
- Authority
- CN
- China
- Prior art keywords
- steep
- steep slope
- descent
- automobile
- speed
- 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 21
- 238000013459 approach Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Arrangement of adaptations of instruments
-
- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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
-
- 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
Abstract
The invention discloses a method for controlling the gradual descent of an automobile steep slope, which comprises the following steps: when the steep slope slow descending function of the automobile is in an opening state, the current speed is obtained in real time, and when the speed is lower than a set value A, a steep slope slow descending preparation state is entered; when the vehicle is in a steep slope slow descending preparation state, acquiring vehicle parameters in real time, executing control of steep slope slow descending when the vehicle parameters meet preset execution conditions, and exiting the steep slope slow descending preparation state when the vehicle speed is greater than or equal to a set value A; and when the control on the steep slope slow descent is executed, acquiring a target torque of the motor according to the target speed, controlling the motor to execute the target torque, stopping executing the control on the steep slope slow descent when a preset exit condition is met, and returning to a steep slope slow descent preparation state. After the vehicle control unit is used for judging that the requirements for the steep descent are met, the steep descent can be realized through motor simulation, and energy recovery to a certain degree can be realized; meanwhile, the cost of parts of the whole vehicle is reduced, and the potential functional safety hazard caused by the parts is reduced.
Description
Technical Field
The invention relates to the technical field of new energy automobile control, in particular to a control method of a steep descent system of an electric automobile.
Background
The steep descent system controls the vehicle to stably reduce the speed of the vehicle to a safe range through the combined action of the engine braking force, the ESP and the ABS and the high-frequency snub brake, so that the vehicle runs at a low speed on a downhill. However, when the steep slope slowly falls into the medium, the hydraulic pump repeatedly brakes to cause energy loss, and the brake disc is easy to generate heat, which may cause functional failure, and the hydraulic pump has low efficiency, high cost and easy failure.
Disclosure of Invention
The invention aims to solve the technical problem of realizing the function of realizing the steep descent by using the vehicle control unit, realizing the steep descent by using the motor simulation and realizing energy recovery to a certain degree.
In order to achieve the purpose, the invention adopts the technical scheme that: a control method for gradual descent of an automobile steep slope comprises the following steps:
when the steep slope slow descending function of the automobile is in an opening state, the current speed is obtained in real time, and when the speed is lower than a set value A, a steep slope slow descending preparation state is entered;
when the vehicle is in a steep slope slow descending preparation state, acquiring vehicle parameters in real time, executing control of steep slope slow descending when the vehicle parameters meet preset execution conditions, and exiting the steep slope slow descending preparation state when the vehicle speed is greater than or equal to a set value A;
and when the control on the steep slope slow descent is executed, acquiring a target torque of the motor according to the target speed, controlling the motor to execute the target torque, stopping executing the control on the steep slope slow descent when a preset exit condition is met, and returning to a steep slope slow descent preparation state.
When the control steep slope is executed for slow descending, the target speed is set according to the speed when the control steep slope is executed for slow descending, and when the control steep slope is executed for slow descending, the current speed is obtained in real time to adjust the target torque, so that the current speed approaches the target speed.
The execution conditions are preset to satisfy all of the following conditions:
the gear is in the D gear;
the brake is released;
the accelerator pedal is not stepped on;
current vehicle speed < B, where A > B;
SOC<C。
dividing the speed below the vehicle speed B into 2-5 speed intervals, wherein each speed interval has a preset vehicle speed belonging to the interval, and when the vehicle speed entering the execution of the control of the steep slope slow descent is in a certain speed interval, determining the current vehicle speed as the preset vehicle speed of the speed interval.
The preset exit condition is that any one of the following conditions is met:
the gears are switched;
active braking;
stepping on an accelerator pedal;
the current vehicle speed is more than or equal to B, wherein A is more than B;
SOC≥C；
the whole vehicle has a fault.
The set value A is 60km/h, the set value B is 30km/h, and the set value C is 85 percent
When the automobile steep slope slow descending function is in an opening state, controlling a steep slope slow descending icon to be in a lighting state;
when the automobile steep slope slow descending function is in an off state, controlling a steep slope slow descending icon to be in an off state;
when the device is in a steep slope slow descending preparation state, the text prompts that the steep slope slow descending function is activated;
when the steep slope slow descending preparation state is exited, the text prompts that the steep slope slow descending function is not activated;
and when the control of the steep slope slow descending is executed, controlling the steep slope slow descending icon to be in a flashing state.
A system for controlling the gradual descent of an automobile steep slope is provided with a VCU, the VCU is connected with a CAN bus to acquire automobile parameter information, the VCU outputs a target torque signal to an MCU (microprogrammed control Unit) to control a motor to output and execute the gradual descent of the steep slope, and the control system for the gradual descent of the automobile steep slope executes the control method for the gradual descent of the automobile steep slope.
The parameter information comprises vehicle speed information, gear information, accelerator pedal information, brake information, SOC information and vehicle fault information.
The VCU is connected with an automobile instrument and transmits state information of the automobile steep-slope slow-falling control method to the automobile instrument for displaying, and a steep-slope slow-falling icon and a character lifting area are arranged on the automobile instrument.
After the vehicle control unit is used for judging that the requirements for the steep descent are met, the steep descent can be realized through motor simulation, and energy recovery to a certain degree can be realized; meanwhile, the cost of parts of the whole vehicle is reduced, and the potential functional safety hazard caused by the parts is reduced.
Drawings
The following is a brief description of the contents of each figure in the description of the present invention:
fig. 1 is a schematic diagram of a control method of a steep descent system.
Detailed Description
The following description of the embodiments with reference to the drawings is provided to describe the embodiments of the present invention, and the embodiments of the present invention, such as the shapes and configurations of the components, the mutual positions and connection relationships of the components, the functions and working principles of the components, the manufacturing processes and the operation and use methods, etc., will be further described in detail to help those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical solutions of the present invention.
The automobile steep-slope slow-falling control system is controlled by the MCU and the VCU, the VCU is connected with the CAN bus to acquire the vehicle parameter information (vehicle speed information, gear information, accelerator pedal information, brake information, SOC information, vehicle fault information and the like) and judge whether to activate the steep-slope slow-falling function; the VCU outputs a target torque signal to the MCU, and the MCU controls the motor to output and execute steep descent.
The VCU is connected with the automobile instrument and transmits the state information of the automobile steep-slope slow-falling control method to the automobile instrument for displaying, and the automobile instrument is provided with a steep-slope slow-falling icon and a character lifting area. The display method comprises the following steps:
when the automobile steep slope slow descending function is in an opening state, controlling a steep slope slow descending icon to be in a lighting state;
when the automobile steep slope slow descending function is in an off state, controlling a steep slope slow descending icon to be in an off state;
when the device is in a steep slope slow descending preparation state, the text prompts that the steep slope slow descending function is activated;
when the steep slope slow descending preparation state is exited, the text prompts that the steep slope slow descending function is not activated;
and when the control of the steep slope slow descending is executed, controlling the steep slope slow descending icon to be in a flashing state.
Therefore, the driver can know the working state of the automobile and the real-time state of the steep descent more conveniently.
Based on the control method of the automobile steep descent control system, as shown in fig. 1:
when entering a steep slope, a driver controls whether to start a steep slope slow descending function or not; the control of the steep descent system is mainly carried out by the vehicle control unit to judge whether the conditions are met.
The vehicle control unit receives the steep descent switch signal and the vehicle speed signal, judges that the vehicle speed is less than 60km/h and enters a steep descent preparation state;
the vehicle control unit judges whether the steep descent starting condition is met:
all of the following conditions are satisfied
(1) A steep descent switch starting instruction;
(2) the gear is in D gear
(3) The brake is released, the brake is not stepped on, and the hand brake is in a release state;
(4) the accelerator pedal is not stepped on;
(5) the current vehicle speed is less than 30 km/h;
(6)SOC<85％；
and (3) a steep descent exit condition (one condition is satisfied):
(1) closing the steep descent switch;
(2) the gears are switched;
(3) stepping a brake pedal to brake, and maintaining 1s (TBD) or pulling up a hand brake;
(4) stepping on an accelerator pedal;
(5) the current vehicle speed is more than or equal to 30 km/h;
(6)SOC≥85％；
(7) the whole vehicle has a fault;
dividing the speed below 30km/h into 2-5 speed intervals, wherein each speed interval has a preset speed belonging to the interval, and when the speed entering the operation of controlling the steep descent is in a certain speed interval, determining the current speed as the preset speed of the speed interval.
For example, three speed intervals are set, and the vehicle speed control range after the steep descent function is activated is as follows:
1. when the vehicle speed is within the range of 2km/h-7km/h, the preset vehicle speed is 7 km/h;
2. when the vehicle speed is within the range of 7km/h-25km/h, the preset vehicle speed is 16 km/h;
3. when the vehicle speed is within the range of 25km/h-30km/h, the preset vehicle speed is 25 km/h.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (10)
1. A control method for gradual descent of an automobile steep slope is characterized by comprising the following steps:
when the steep slope slow descending function of the automobile is in an opening state, the current speed is obtained in real time, and when the speed is lower than a set value A, a steep slope slow descending preparation state is entered;
when the vehicle is in a steep slope slow descending preparation state, acquiring vehicle parameters in real time, executing control of steep slope slow descending when the vehicle parameters meet preset execution conditions, and exiting the steep slope slow descending preparation state when the vehicle speed is greater than or equal to a set value A;
and when the control on the steep slope slow descent is executed, acquiring a target torque of the motor according to the target speed, controlling the motor to execute the target torque, stopping executing the control on the steep slope slow descent when a preset exit condition is met, and returning to a steep slope slow descent preparation state.
2. The method for controlling the steep descent of the automobile according to claim 1, wherein: when the control steep slope is executed for slow descending, the target speed is set according to the speed when the control steep slope is executed for slow descending, and when the control steep slope is executed for slow descending, the current speed is obtained in real time to adjust the target torque, so that the current speed approaches the target speed.
3. The automobile steep descent control method according to claim 1 or 2, characterized in that: the execution conditions are preset to satisfy all of the following conditions:
the gear is in the D gear;
the brake is released;
the accelerator pedal is not stepped on;
current vehicle speed < B, where A > B;
SOC<C。
4. the method for controlling the steep descent of the automobile according to claim 3, wherein: dividing the speed below the vehicle speed B into 2-5 speed intervals, wherein each speed interval has a preset vehicle speed belonging to the interval, and when the vehicle speed entering the execution of the control of the steep slope slow descent is in a certain speed interval, determining the current vehicle speed as the preset vehicle speed of the speed interval.
5. The method for controlling the steep descent of the automobile according to claim 4, wherein: the preset exit condition is that any one of the following conditions is met:
the gears are switched;
active braking;
stepping on an accelerator pedal;
the current vehicle speed is more than or equal to B, wherein A is more than B;
SOC≥C；
the whole vehicle has a fault.
6. The method for controlling the steep descent of the automobile according to claim 5, wherein: the set value A is 60km/h, the set value B is 30km/h, and the set value C is 85%.
7. The automobile steep descent control method according to claim 1, 2, 4, 5, or 6, wherein: when the automobile steep slope slow descending function is in an opening state, controlling a steep slope slow descending icon to be in a lighting state;
when the automobile steep slope slow descending function is in an off state, controlling a steep slope slow descending icon to be in an off state;
when the device is in a steep slope slow descending preparation state, the text prompts that the steep slope slow descending function is activated;
when the steep slope slow descending preparation state is exited, the text prompts that the steep slope slow descending function is not activated;
and when the control of the steep slope slow descending is executed, controlling the steep slope slow descending icon to be in a flashing state.
8. A steep-slope slow-descent control system of an automobile is provided with a VCU, the VCU is connected with a CAN bus to acquire automobile parameter information, the VCU outputs a target torque signal to an MCU (microprogrammed control Unit) to control a motor to output and execute steep-slope slow descent, and the steep-slope slow-descent control system of the automobile executes the steep-slope slow-descent control method of the automobile as claimed in any one of claims 1-7.
9. The steep descent control system for a vehicle of claim 8, wherein: the parameter information comprises vehicle speed information, gear information, accelerator pedal information, brake information, SOC information and vehicle fault information.
10. The steep descent control system for a vehicle of claim 8, wherein: the VCU is connected with an automobile instrument and transmits state information of the automobile steep-slope slow-falling control method to the automobile instrument for displaying, and a steep-slope slow-falling icon and a character lifting area are arranged on the automobile instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857215.0A CN111993903A (en) | 2020-08-24 | 2020-08-24 | Method and system for controlling gradual descent of automobile steep slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857215.0A CN111993903A (en) | 2020-08-24 | 2020-08-24 | Method and system for controlling gradual descent of automobile steep slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111993903A true CN111993903A (en) | 2020-11-27 |
Family
ID=73471686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010857215.0A Pending CN111993903A (en) | 2020-08-24 | 2020-08-24 | Method and system for controlling gradual descent of automobile steep slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111993903A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113212184A (en) * | 2021-06-15 | 2021-08-06 | 奇瑞新能源汽车股份有限公司 | Steep-slope slow-descending control method and device for electric vehicle and electric vehicle |
| CN113829898A (en) * | 2021-11-15 | 2021-12-24 | 合众新能源汽车有限公司 | Vehicle control method and vehicle |
| CN113911098A (en) * | 2021-11-25 | 2022-01-11 | 中国重汽集团济南动力有限公司 | HDC high-precision vehicle speed control method and system combined with cruise control |
| CN114084149A (en) * | 2021-11-22 | 2022-02-25 | 奇瑞汽车股份有限公司 | Speed control method and device for automobile and computer storage medium |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090227418A1 (en) * | 2008-03-06 | 2009-09-10 | Toyota Motor Engineering & Manufacturing North America, Inc. | Methods and Systems for Regulating Hill Descent Speed of an Electric Vehicle |
| US20100004808A1 (en) * | 2006-12-26 | 2010-01-07 | Byd Company Limited | Method and apparatus for controlling output torque of a motor for an electric vehicle in downhill mode |
| CN104442763A (en) * | 2014-11-20 | 2015-03-25 | 北京新能源汽车股份有限公司 | Hill descent control system of pure electric vehicle and control method thereof |
| CN106828198A (en) * | 2016-12-27 | 2017-06-13 | 深圳市沃特玛电池有限公司 | The abrupt slope slow-descending system and its control method of a kind of electric automobile |
| CN107310428A (en) * | 2017-06-14 | 2017-11-03 | 北京新能源汽车股份有限公司 | Control method and device based on electric vehicle |
| CN107487190A (en) * | 2016-12-26 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Control method, device and the electric automobile of the slow drop in electric automobile abrupt slope |
| CN110293971A (en) * | 2019-06-24 | 2019-10-01 | 浙江吉利控股集团有限公司 | The slow drop control method in ramp, the slow drop control system in ramp and vehicle |
| CN110303901A (en) * | 2019-07-12 | 2019-10-08 | 重庆长安新能源汽车科技有限公司 | A kind of car ramp auxiliary braking method, device and electric car |
| US20200031357A1 (en) * | 2016-09-09 | 2020-01-30 | Byd Company Limited | Hill descent system for vehicle and control method thereof |
| CN111186311A (en) * | 2020-01-19 | 2020-05-22 | 江西江铃集团新能源汽车有限公司 | Method and system for controlling steep-slope slow descent of electric automobile |
| CN111376728A (en) * | 2018-12-29 | 2020-07-07 | 比亚迪汽车工业有限公司 | Control method and control system based on steep-slope slow-descent control system and electric vehicle |
-
2020
- 2020-08-24 CN CN202010857215.0A patent/CN111993903A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100004808A1 (en) * | 2006-12-26 | 2010-01-07 | Byd Company Limited | Method and apparatus for controlling output torque of a motor for an electric vehicle in downhill mode |
| US20090227418A1 (en) * | 2008-03-06 | 2009-09-10 | Toyota Motor Engineering & Manufacturing North America, Inc. | Methods and Systems for Regulating Hill Descent Speed of an Electric Vehicle |
| CN104442763A (en) * | 2014-11-20 | 2015-03-25 | 北京新能源汽车股份有限公司 | Hill descent control system of pure electric vehicle and control method thereof |
| US20200031357A1 (en) * | 2016-09-09 | 2020-01-30 | Byd Company Limited | Hill descent system for vehicle and control method thereof |
| CN107487190A (en) * | 2016-12-26 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Control method, device and the electric automobile of the slow drop in electric automobile abrupt slope |
| CN106828198A (en) * | 2016-12-27 | 2017-06-13 | 深圳市沃特玛电池有限公司 | The abrupt slope slow-descending system and its control method of a kind of electric automobile |
| CN107310428A (en) * | 2017-06-14 | 2017-11-03 | 北京新能源汽车股份有限公司 | Control method and device based on electric vehicle |
| CN111376728A (en) * | 2018-12-29 | 2020-07-07 | 比亚迪汽车工业有限公司 | Control method and control system based on steep-slope slow-descent control system and electric vehicle |
| CN110293971A (en) * | 2019-06-24 | 2019-10-01 | 浙江吉利控股集团有限公司 | The slow drop control method in ramp, the slow drop control system in ramp and vehicle |
| CN110303901A (en) * | 2019-07-12 | 2019-10-08 | 重庆长安新能源汽车科技有限公司 | A kind of car ramp auxiliary braking method, device and electric car |
| CN111186311A (en) * | 2020-01-19 | 2020-05-22 | 江西江铃集团新能源汽车有限公司 | Method and system for controlling steep-slope slow descent of electric automobile |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113212184A (en) * | 2021-06-15 | 2021-08-06 | 奇瑞新能源汽车股份有限公司 | Steep-slope slow-descending control method and device for electric vehicle and electric vehicle |
| CN113829898A (en) * | 2021-11-15 | 2021-12-24 | 合众新能源汽车有限公司 | Vehicle control method and vehicle |
| CN113829898B (en) * | 2021-11-15 | 2023-09-12 | 合众新能源汽车股份有限公司 | Vehicle control method and vehicle |
| CN114084149A (en) * | 2021-11-22 | 2022-02-25 | 奇瑞汽车股份有限公司 | Speed control method and device for automobile and computer storage medium |
| CN113911098A (en) * | 2021-11-25 | 2022-01-11 | 中国重汽集团济南动力有限公司 | HDC high-precision vehicle speed control method and system combined with cruise control |
| CN113911098B (en) * | 2021-11-25 | 2024-01-23 | 中国重汽集团济南动力有限公司 | HDC high-precision vehicle speed control method and system combined with cruise control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111993903A (en) | Method and system for controlling gradual descent of automobile steep slope | |
| CN103419765B (en) | Vehicle and the automatic parking system for vehicle | |
| CN109130874B (en) | Braking energy recovery control system of electric automobile and control method thereof | |
| CN104417538B (en) | Electric car and the driving of control electric car, the system and its control method of braking | |
| CN201833882U (en) | Electronic intelligent accelerator stepping misoperation prevention system | |
| CN106515507A (en) | Pure electric vehicle motor auxiliary hill-holding and hill-starting control system and method | |
| CN111284334B (en) | Downhill retarding control system and method for vehicle | |
| CN111361556B (en) | Vehicle speed limit auxiliary control method and system | |
| CN104554199A (en) | Single-pedal speed control system of electric vehicle | |
| CN105383312A (en) | Braking apparatus of vehicle | |
| CN109591605A (en) | A kind of parallel Brake energy recovery control method of pure electric automobile and system | |
| CN104421025A (en) | Method for controlling DFCO (Deceleration Fuel Cut Off) of HEV (Hybrid Electric Vehicle) | |
| CN106274550B (en) | A kind of pure electric vehicle safe driving control method | |
| CN112158182A (en) | Intelligent controller of hydraulic retarder and control method thereof | |
| CN114889573A (en) | Temporary parking method, device, electronic equipment and storage medium | |
| CN103660965A (en) | Constant-speed control method and device for electric locomotive | |
| CN103994894B (en) | A kind of platform for electric vehicle experiments based on AMT and function realizing method thereof | |
| KR20130124459A (en) | Method and apparatus for improving fuel efficiency | |
| CN101195372A (en) | Control device for mistake step on accelerator of vehicle | |
| CN208306624U (en) | A kind of uphill starting auxiliary system based on electric control hydraulic braking | |
| CN107776403B (en) | Automobile accelerator mistaken stepping prevention system and method | |
| CN115571103A (en) | Parking brake linear control system and control method for unmanned vehicle | |
| CN103223900A (en) | System and method for controlling brake signal lamp of automobile | |
| CN111186396B (en) | Driving control device for new energy bus | |
| CN203130261U (en) | Exhaust brake speed governor of automobile engine |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201127 |