CN110816512A - Automobile driving auxiliary control method - Google Patents
Automobile driving auxiliary control method Download PDFInfo
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- CN110816512A CN110816512A CN201911000899.6A CN201911000899A CN110816512A CN 110816512 A CN110816512 A CN 110816512A CN 201911000899 A CN201911000899 A CN 201911000899A CN 110816512 A CN110816512 A CN 110816512A
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- parking system
- automatic
- automobile
- engine controller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18018—Start-stop drive, e.g. in a traffic jam
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control Of Transmission Device (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention provides an automobile driving auxiliary control method which can correspondingly coordinate parking and starting strategies of an automobile, so that the stability of the automobile during parking and the smoothness and no drag during starting are ensured, the load of a gearbox during parking of an automatic-gear automobile is reduced, and the oil consumption of the whole automobile is reduced. The control method comprises the following steps of parking condition driving auxiliary control: after the vehicle stops, the whole vehicle engine controller judges the state of an electronic parking system and the state of an automatic parking system in the electronic stability program system, and if the electronic parking system and the automatic parking system are not activated, the starting auxiliary function of the whole vehicle engine controller and the crawling function of the automatic transmission controller work normally; and if any one of the electronic parking system and the automatic parking system is in an activated state, the starting auxiliary function of the whole vehicle engine controller and the crawling function of the automatic gearbox controller are not activated.
Description
Technical Field
The invention relates to the technical field of automobile driving control methods, in particular to an automobile driving auxiliary control method.
Background
In order to ensure that an automobile starts smoothly without flameout, so as to improve driving convenience, automobile manufacturers generally develop a starting assistance function and an idle crawling function (only automatic transmission type), namely when a starting intention of a driver is identified through a gear state, a clutch pedal state and a brake pedal state, an engine ECU (electronic control unit) controls the opening of a throttle valve, and the running speed of an engine is improved so as to provide an engine torque required by starting.
The rapid development of the vehicle-mounted automobile electronic parking control technology and the great reduction of the cost have the popularization rate rapidly expanding from high-end automobiles to low-price automobiles, and the electronic parking function also expands a plurality of functions, such as automatic parking linked with an ESC controller, automatic release of electronic parking and the like. However, because the engine starting auxiliary function and the electronic parking function are not highly coordinated when working simultaneously, the torque fluctuation of the engine can cause the vehicle in the automatic parking state to generate parking pause and frustration, the vehicle is parked after being parked automatically and is stopped after running continuously, and the motor working sound is generated when the ESC is used for actively boosting; when the vehicle works in an automatic parking state or an electronic parking state, the driving force of the engine is applied to a wheel end through a transmission system for a long time, so that a clutch system of an automatic gearbox is subjected to overheating protection for a long time in a sliding mode, normal running is influenced, and the rotating speed of the engine is adjusted at an improper time by an ECU (electronic control Unit) to increase the oil consumption of the whole vehicle; these all reduce ride comfort, cause customer complaints, and affect driver's driving confidence.
Disclosure of Invention
The invention aims to provide an automobile driving auxiliary control method which can correspondingly coordinate parking strategies and starting strategies of an automobile, so that the stability of the automobile during parking and the smoothness and no drag during starting are ensured, the load of a gearbox during parking of an automatic transmission automobile is reduced, and the oil consumption of the whole automobile is reduced.
The driving auxiliary control method for the automobile provided by the invention comprises the following steps of: after the vehicle stops, the whole vehicle engine controller judges the state of an electronic parking system and the state of an automatic parking system in the electronic stability program system, and if the electronic parking system and the automatic parking system are not activated, the starting auxiliary function of the whole vehicle engine controller and the crawling function of the automatic transmission controller work normally; and if any one of the electronic parking system and the automatic parking system is in an activated state, the starting auxiliary function of the whole vehicle engine controller and the crawling function of the automatic gearbox controller are not activated.
The invention relates to an automobile driving auxiliary control method, which integrally coordinates functional working strategies such as electronic parking and automatic parking of an electronic stability program system, starting assistance of a finished automobile engine controller, crawling of an automatic gearbox and the like at the initial stage of function development of the electronic stability program system: the method is characterized in that two judgment conditions of an automatic parking system state and an electronic parking system state are added on the basis that the existing whole automobile engine controller and the existing automatic gearbox controller recognize the state of a whole automobile brake system through a clutch pedal state and a brake pedal state, a parking strategy of an automobile is correspondingly coordinated, if any one of the electronic parking system and the automatic parking system is in an activated state, a starting auxiliary function of the whole automobile engine controller and a creeping function of the automatic gearbox controller are not activated, so that the stability of the automobile during parking is ensured, the load of a gearbox when the automatic gearbox is parked is reduced, and the oil consumption of the whole automobile is reduced.
Further, the driving auxiliary control method for the automobile further comprises the following steps of: when the vehicle is in a running gear, the whole vehicle engine controller identifies the starting intention of a driver, the whole vehicle engine controller judges the state of an electronic parking system and the state of an automatic parking system in an electronic stability program system, and if the electronic parking system and the automatic parking system are not activated, the starting auxiliary function of the whole vehicle engine controller and the crawling function of the automatic gearbox controller work normally; if any one of the electronic parking system and the automatic parking system is in an activated state, the starting auxiliary function of the engine controller of the whole vehicle and the crawling function of the automatic gearbox controller are not activated, and the whole vehicle can be started smoothly after reaching the releasing condition of the electronic parking system or the automatic parking system. The starting strategy of the automobile can be coordinated by adding two judgment conditions of the state of the automatic parking system and the state of the electronic parking system, so that the starting of the automobile is smooth and free from dragging, the load of a gearbox is reduced when the automatic transmission automobile is started, and the oil consumption of the whole automobile is reduced.
Further, in order to accurately identify the starting operation of the driver, the whole vehicle engine controller identifies the starting intention of the driver according to the position of the clutch pedal and the opening degree of the accelerator pedal.
Specifically, the whole vehicle engine controller reads a clutch pedal position parameter through a clutch pedal position sensor.
Specifically, the whole vehicle engine controller reads the opening degree parameter of the accelerator pedal through the accelerator pedal position sensor.
Specifically, the stop refers to the driver depressing the brake pedal.
Preferably, the vehicle engine controller reads an electronic parking system state signal and an automatic parking system state signal of the electronic stability program system through CAN communication.
Drawings
Fig. 1 is a schematic flow chart of the parking condition driving assist control of the present invention.
Fig. 2 is a schematic flow chart of the starting condition driving assist control of the present invention.
Detailed Description
The following describes embodiments of the present invention, such as shapes and structures of respective members, mutual positions and connection relationships between respective portions, and actions and operation principles of the respective portions, in further detail, with reference to the accompanying drawings.
Referring to fig. 1, the driving assistance control method for the vehicle of the present invention includes the following steps: when the vehicle stops, the whole vehicle engine controller ECU judges the state EPBStatus and the state AVHStatus of an electronic parking system in the electronic stability program system ESC, and if the electronic parking system EPB and the automatic parking system are not activated, the starting auxiliary function of the whole vehicle engine controller ECU and the crawling function of the automatic transmission controller TCU work normally; if any one of the electronic parking system EPB and the automatic parking system automatic is in an activated state, the starting auxiliary function of the vehicle engine controller ECU and the crawling function of the automatic transmission controller TCU are not activated.
In the initial stage of function development of the electronic stability program system, the auxiliary control method for automobile driving integrally coordinates the functional working strategies of electronic parking EPB and automatic parking automatic of the electronic stability program system, starting assistance of an ECU of an engine controller of a whole automobile, creeping of an automatic gearbox TCU and the like: the method is characterized in that two judgment conditions of an automatic parking system state AVHStatus and an electronic parking system state EPBStatus are added on the basis that the existing whole vehicle engine controller ECU and the existing automatic transmission controller TCU recognize the state of a whole vehicle brake system through a clutch pedal state and a brake pedal state BrakePedalStatus, corresponding coordination work is carried out on a vehicle parking strategy, if any one of the electronic parking system EPB and the automatic parking system automatic is in an activated state, a starting auxiliary function of the whole vehicle engine controller ECU and a crawling function of the automatic transmission controller TCU are not activated, so that the vehicle is stably parked, the load of a transmission case when the vehicle is automatically stopped is reduced, and the oil consumption of the whole vehicle is reduced.
As shown in fig. 2, the driving assistance control method for the vehicle of the present invention further includes a start condition driving assistance control: when a vehicle is in a running gear, after the ECU of the engine controller of the whole vehicle recognizes the starting intention of a driver, the ECU of the engine controller of the whole vehicle judges the state EPBStatus of an electronic parking system and the state AVHStatus of an automatic parking system in an electronic stability program system, and if the EPB of the electronic parking system and the automatic parking system are not activated, the starting auxiliary function of the ECU of the engine controller of the whole vehicle and the creeping function of the TCU of the automatic transmission case normally work; if any one of the electronic parking system EPB and the automatic parking system Autohold is in an activated state, the starting auxiliary function of the engine controller ECU of the whole vehicle and the crawling function of the automatic transmission controller TCU are not activated, and the whole vehicle can be started smoothly after reaching the releasing condition of the electronic parking system EPB or the automatic parking system Autohold. The starting strategy of the automobile can be coordinated under two judgment conditions of the automatic parking system state AVHStatus and the electronic parking system state EPBStatus, so that the automobile is smooth and free of dragging during starting, the load of a gearbox during starting of the automatic transmission automobile is reduced, and the oil consumption of the whole automobile is reduced.
Preferably, in order to accurately identify the starting operation of the driver, the vehicle engine controller ECU identifies the starting intention of the driver according to the position of the clutch pedal and the opening degree of the accelerator pedal.
Preferably, the whole vehicle engine controller ECU reads the position parameter of the clutch pedal through a clutch pedal position sensor.
Preferably, the ECU of the whole vehicle engine reads the opening parameter of the accelerator pedal through the accelerator pedal position sensor.
Preferably, the stop according to the present invention means that the driver depresses the brake pedal.
Preferably, the entire vehicle engine controller ECU reads the electronic parking system state signal EPBStatus and the automatic parking system state signal AVHStatus of the electronic stability program system through CAN communication.
The invention has been described in connection with the accompanying drawings, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description, as long as the invention is capable of being practiced without modification in any way whatsoever, and is capable of other applications without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A driving auxiliary control method of an automobile is characterized by comprising the following steps: after the vehicle stops, the whole vehicle engine controller judges the state of an electronic parking system and the state of an automatic parking system in the electronic stability program system, and if the electronic parking system and the automatic parking system are not activated, the starting auxiliary function of the whole vehicle engine controller and the crawling function of the automatic transmission controller work normally; and if any one of the electronic parking system and the automatic parking system is in an activated state, the starting auxiliary function of the whole vehicle engine controller and the crawling function of the automatic gearbox controller are not activated.
2. The automobile driving assist control method according to claim 1, characterized by further comprising a take-off condition driving assist control: when the vehicle is in a running gear, the whole vehicle engine controller identifies the starting intention of a driver, the whole vehicle engine controller judges the state of an electronic parking system and the state of an automatic parking system in an electronic stability program system, and if the electronic parking system and the automatic parking system are not activated, the starting auxiliary function of the whole vehicle engine controller and the crawling function of the automatic gearbox controller work normally; if any one of the electronic parking system and the automatic parking system is in an activated state, the starting auxiliary function of the engine controller of the whole vehicle and the crawling function of the automatic gearbox controller are not activated, and the whole vehicle can be started smoothly after reaching the releasing condition of the electronic parking system or the automatic parking system.
3. The automobile driving assist control method according to claim 2, characterized in that the entire automobile engine controller recognizes the driver's intention to start based on a clutch pedal position and an accelerator pedal opening degree.
4. The automobile driving assist control method as claimed in claim 3, wherein the entire automobile engine controller reads the clutch pedal position parameter through a clutch pedal position sensor.
5. The automobile driving assistance control method according to claim 3, characterized in that the entire automobile engine controller reads an accelerator pedal opening degree parameter through an accelerator pedal position sensor.
6. The driving assist control method for an automobile according to claim 1, 2, 3, 4 or 5, characterized in that the stop is a driver depressing a brake pedal.
7. The automobile driving assist control method according to claim 6, wherein the entire automobile engine controller reads an electronic parking system state signal and an automatic parking system state signal of the electronic stability program system through CAN communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911000899.6A CN110816512B (en) | 2019-10-21 | 2019-10-21 | Automobile driving auxiliary control method |
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| CN201911000899.6A CN110816512B (en) | 2019-10-21 | 2019-10-21 | Automobile driving auxiliary control method |
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| CN110816512A true CN110816512A (en) | 2020-02-21 |
| CN110816512B CN110816512B (en) | 2021-11-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113467412A (en) * | 2021-06-11 | 2021-10-01 | 重庆长安汽车股份有限公司 | System and method for vehicle driving mode integrated linkage |
| CN114789663A (en) * | 2022-06-01 | 2022-07-26 | 徐州徐工矿业机械有限公司 | A method of VCU creep torque control combined with EPB parking to achieve slope maintenance |
| CN115027473A (en) * | 2022-06-17 | 2022-09-09 | 中国第一汽车股份有限公司 | A control method, control system, equipment, storage medium and automobile for a parking condition of a passenger car |
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| CN104395178A (en) * | 2012-06-20 | 2015-03-04 | 奥迪股份公司 | Method for operating a motor vehicle comprising a parking assistance system |
| CN105292118A (en) * | 2015-11-10 | 2016-02-03 | 中国重汽集团济南动力有限公司 | Heavy-duty vehicle hill-start assist control method |
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| US20190217862A1 (en) * | 2018-01-17 | 2019-07-18 | Ford Global Technologies, Llc | Automatic brake hold release directly to vehicle creep |
| CN110094435A (en) * | 2018-01-31 | 2019-08-06 | 长城汽车股份有限公司 | DCT clutch moment of torque acquisition methods based on ESP state |
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2019
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| CN104395178A (en) * | 2012-06-20 | 2015-03-04 | 奥迪股份公司 | Method for operating a motor vehicle comprising a parking assistance system |
| CN105292118A (en) * | 2015-11-10 | 2016-02-03 | 中国重汽集团济南动力有限公司 | Heavy-duty vehicle hill-start assist control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113467412A (en) * | 2021-06-11 | 2021-10-01 | 重庆长安汽车股份有限公司 | System and method for vehicle driving mode integrated linkage |
| CN113467412B (en) * | 2021-06-11 | 2023-03-14 | 重庆长安汽车股份有限公司 | System and method for vehicle driving mode integrated linkage |
| CN114789663A (en) * | 2022-06-01 | 2022-07-26 | 徐州徐工矿业机械有限公司 | A method of VCU creep torque control combined with EPB parking to achieve slope maintenance |
| CN115027473A (en) * | 2022-06-17 | 2022-09-09 | 中国第一汽车股份有限公司 | A control method, control system, equipment, storage medium and automobile for a parking condition of a passenger car |
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| CN110816512B (en) | 2021-11-02 |
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