CN114590258A - Method and device for controlling flameout and sliding of vehicle - Google Patents
Method and device for controlling flameout and sliding of vehicle Download PDFInfo
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- CN114590258A CN114590258A CN202110149104.9A CN202110149104A CN114590258A CN 114590258 A CN114590258 A CN 114590258A CN 202110149104 A CN202110149104 A CN 202110149104A CN 114590258 A CN114590258 A CN 114590258A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 claims description 14
- 230000007935 neutral effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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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
- B60W30/18072—Coasting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention relates to the technical field of vehicle control, and provides a method and a device for controlling flameout and sliding of a vehicle. The method comprises the following steps: judging the running state of the vehicle and the state of a brake pedal; detecting the vacuum degree of a vacuum booster of the vehicle when the running state of the vehicle is flameout and sliding and the state of the brake pedal is treaded; and when the vacuum degree is detected to be smaller than or equal to a first preset vacuum degree and the vehicle meets the active supercharging condition, controlling the motor of the vehicle to supercharge. The method can ensure that the vehicle can achieve the expected deceleration, thereby ensuring safety.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a method and a device for controlling flameout and sliding of a vehicle.
Background
Under typical road conditions of driving on a continuous downhill curve and the like, a driver may adopt a flameout neutral gear sliding driving mode to reduce the fuel consumption of a vehicle. However, the vacuum source of the brake system comes from the engine, and the vacuum in the vacuum booster is not compensated when the engine is turned off, and the desired deceleration may not be achieved, thereby causing a serious vehicle accident.
Disclosure of Invention
In view of the above, the present invention is directed to a method for controlling flameout coasting of a vehicle, so as to ensure that the vehicle can achieve a desired deceleration, thereby ensuring safety.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method of controlling vehicle coasting without stalling, the method comprising: judging the running state of the vehicle and the state of a brake pedal; when the running state of the vehicle is judged to be flameout and sliding and the state of the brake pedal is judged to be treading, detecting the vacuum degree of a vacuum booster of the vehicle; and when the vacuum degree is detected to be smaller than or equal to a first preset vacuum degree and the vehicle meets the active pressurization condition, controlling the motor of the vehicle to be pressurized.
Further, the determining the driving state of the vehicle includes: detecting at least one of an ignition switch position, a gear position, and an engine state of the vehicle, and a vehicle speed; and when at least one of the conditions that the ignition switch position is OFF, the gear is in a neutral gear and the engine state is OFF is met, and the vehicle speed is greater than or equal to a preset vehicle speed, judging that the running state of the vehicle is flameout and sliding.
Further, the method further comprises: detecting a brake master cylinder pressure of the vehicle; calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle; detecting a current deceleration of the vehicle; detecting a four wheel speed slip of the vehicle; when the detected vacuum degree is smaller than or equal to a first preset vacuum degree and the vehicle meets an active supercharging condition, controlling the motor of the vehicle to supercharge comprises the following steps: and controlling the motor of the vehicle to be boosted when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, and the four wheel speed of the vehicle is detected to be 0 in a slipping mode.
Further, the method further comprises: detecting a brake master cylinder pressure of the vehicle; calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle; detecting a current deceleration of the vehicle; when the detected vacuum degree is smaller than or equal to a first preset vacuum degree and the vehicle meets an active supercharging condition, controlling the motor of the vehicle to supercharge comprises the following steps: and when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, the four-wheel speed of the vehicle is slipped to be 0, the pressure of the brake master cylinder is greater than 0, and the stroke of the brake pedal is greater than 0, controlling the motor of the vehicle to be pressurized.
Further, the method further comprises: and controlling the engine of the vehicle to start when the vacuum degree is detected to be less than or equal to a second preset vacuum degree.
Compared with the prior art, the vehicle control method has the following advantages:
a method of controlling vehicle coasting without stalling, the method comprising: judging the running state of the vehicle and the state of a brake pedal; detecting the vacuum degree of a vacuum booster of the vehicle when the running state of the vehicle is flameout and sliding and the state of the brake pedal is treaded; and when the vacuum degree is detected to be smaller than or equal to a first preset vacuum degree and the vehicle meets the active supercharging condition, controlling the motor of the vehicle to supercharge. The invention can carry out boosting auxiliary braking when the vacuum degree is not enough to enable the vehicle to reach the expected deceleration, and ensures that the vehicle can reach the expected deceleration, thereby ensuring the safety.
Another object of the present invention is to provide a control device for flameout coasting of a vehicle, so as to ensure that the vehicle can achieve a desired deceleration and ensure safety.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a control apparatus for vehicle stall coasting, the apparatus comprising: the device comprises a judging unit, a vacuum degree detecting unit and a control unit, wherein the judging unit is used for judging the running state of the vehicle and the state of a brake pedal; the vacuum degree detection unit is used for detecting the vacuum degree of a vacuum booster of the vehicle when the running state of the vehicle is flameout and sliding and the state of the brake pedal is treaded; the control unit is used for controlling the motor of the vehicle to be pressurized when the fact that the vacuum degree is smaller than or equal to a first preset vacuum degree is detected, and the vehicle meets an active pressurization condition.
Further, the apparatus further includes a running state detection unit for detecting at least one of an ignition switch position, a shift position, and an engine state of the vehicle, and a vehicle speed; the judging unit comprises a driving state judging unit, and the driving state judging unit is used for judging that the driving state of the vehicle is flameout sliding when at least one of the ignition switch position is OFF, the gear is neutral and the engine state is OFF is satisfied, and the vehicle speed is greater than or equal to a preset vehicle speed.
Further, the apparatus further includes a supercharging condition detection unit configured to: detecting a brake master cylinder pressure of the vehicle; calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle; detecting a current deceleration of the vehicle; detecting a four wheel speed slip of the vehicle; the control unit is further configured to: and controlling the motor of the vehicle to be boosted when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, and the four wheel speed of the vehicle is detected to be 0 in a slipping mode.
Further, the apparatus further includes a supercharging condition detection unit configured to: detecting a brake master cylinder pressure of the vehicle; calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle; detecting a current deceleration of the vehicle; the control unit is further configured to: and when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, the four-wheel speed of the vehicle is slipped to be 0, the pressure of the brake master cylinder is greater than 0, and the stroke of the brake pedal is greater than 0, controlling the motor of the vehicle to be pressurized.
Further, the control unit is further configured to: and controlling the engine of the vehicle to start when the vacuum degree is detected to be less than or equal to a second preset vacuum degree.
Compared with the prior art, the vehicle flameout coasting control device and the vehicle flameout coasting control method have the same advantages, and are not repeated herein.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a method for controlling flameout coasting of a vehicle according to an embodiment of the present invention;
fig. 2 is a flowchart of a determining method for stall sliding according to an embodiment of the present invention;
fig. 3 is a flowchart of an active supercharging determination method according to an embodiment of the present invention;
fig. 4 is a block diagram of a control device for vehicle stall coasting according to an embodiment of the present invention;
fig. 5 is a block diagram of a control device for vehicle coasting in a stall state according to another embodiment of the present invention.
Description of reference numerals:
101 judging unit 102 vacuum degree detecting unit
103 control unit 201 running state detection unit
202 running state determination unit 301 supercharging condition detection unit
Detailed Description
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 is a flowchart of a method for controlling flameout coasting of a vehicle according to an embodiment of the present invention. As shown in fig. 1, the method includes:
step S11, determining a running state of the vehicle and a state of a brake pedal;
for example, as shown in fig. 2, the step of determining the driving state of the vehicle specifically includes the steps of:
a step S21 of detecting at least one of an ignition switch position, a shift position, and an engine state of the vehicle, and a vehicle speed;
and step S22, when at least one of the ignition switch position is OFF, the gear position is neutral, and the engine state is OFF is satisfied, and the vehicle speed is greater than or equal to a preset vehicle speed, judging that the driving state of the vehicle is flameout and sliding.
For example, when the vehicle is not ignited, the engine is not turned on, the gear is neutral, and the vehicle speed is greater than or equal to a preset vehicle speed (e.g., 10KM/h), it indicates that the vehicle is in a flameout coasting state.
When the vehicle is stalled and coasting, if the driver depresses the brake pedal, the vacuum level of the vacuum booster is reduced, so that the state of the brake pedal is judged here, and it is possible to ensure that the reduction in the vacuum level of the vacuum booster is caused by the depression of the brake pedal.
Step S12, detecting the vacuum degree of the vacuum booster of the vehicle when the running state of the vehicle is flameout and sliding and the state of the brake pedal is treaded;
for example, when the vehicle is coasting in a stall state and the brake pedal is depressed, the vacuum level in the vacuum booster may be detected by the vacuum level sensor;
step S13, when the vacuum degree is detected to be less than or equal to a first preset vacuum degree and the vehicle meets the active supercharging condition, controlling a motor of the vehicle to supercharge;
for example, the first predetermined vacuum level may be understood as a vacuum level that does not cause the vehicle to produce the desired deceleration. In addition, in order to ensure safety, it is also necessary to determine whether the active boosting condition is satisfied, and when the vehicle satisfies the active boosting condition, the motor boosting can be controlled until the current deceleration of the vehicle is detected to be equal to the desired deceleration of the driver, so as to complete the purpose of assisting the vehicle in normally decelerating, as shown in fig. 3, the specific steps are as follows:
step S31, detecting a brake master cylinder pressure of the vehicle;
for example, the brake master cylinder pressure of the vehicle may be detected in real time by the master cylinder pressure sensor;
step S32, calculating a desired deceleration of the driver from a master cylinder pressure of the vehicle;
for example, the master cylinder pressure is equivalent to the pressure of the driver stepping on the brake pedal, and is not substantially affected by whether the vacuum is sufficient, so that the desired deceleration of the driver can be calculated by using the master cylinder pressure, which can be realized by those skilled in the art, and will not be described herein. In addition, whether the brake pedal is displaced or not can be detected through the brake pedal displacement sensor so as to confirm that the detected brake master cylinder pressure is determined to be generated by the driver stepping on the brake pedal.
Step S33, detecting a current deceleration of the vehicle;
for example, the current deceleration of the vehicle may be detected by a longitudinal acceleration sensor;
step S34, detecting the wheel speed slip of the four wheels of the vehicle;
for example, four wheel speed slip of the vehicle may be detected by a wheel speed sensor;
and step S35, when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, and the four wheel speed of the vehicle is detected to be 0 in a slipping mode, controlling the motor of the vehicle to be boosted.
For example, when it is detected that the current deceleration of the vehicle is less than or equal to the desired deceleration of the driver, it is explained that the vehicle cannot reach the desired deceleration without intervention of assistance. At this time, under the condition that the wheel speed of the four wheels of the vehicle slips to 0, that is, the vehicle does not slip, it can be judged that the vehicle meets the active supercharging condition, that is, the active supercharging is required to assist the deceleration of the vehicle.
In addition, step S35 may also be (not shown in fig. 3): and when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, the four-wheel speed of the vehicle is slipped to be 0, the pressure of the brake master cylinder is greater than 0, and the stroke of the brake pedal is greater than 0, controlling the motor of the vehicle to be pressurized.
For example, controlling the motor of the vehicle to be boosted requires not only that the current deceleration of the vehicle be less than or equal to the driver's desired deceleration and the wheel speed of the four wheels of the vehicle be slipped to 0, but also that the brake master cylinder pressure be greater than 0 and the stroke of the brake pedal be greater than 0. When the conditions are met, the vehicle is judged to meet the active supercharging condition, and the motor of the vehicle is controlled to supercharge, so that the insufficient vacuum degree caused by braking can be ensured, and the safety can be ensured to the maximum extent.
In addition, the engine of the vehicle is controlled to start when the vacuum level is detected to be less than or equal to a second preset vacuum level (e.g., 30KPA, but not limited thereto). When the existing vehicle is braked probably after being shut down for the 3 rd time (brake vacuum booster characteristic) with the required deceleration larger than 2.44m/s (the brake needs to reach the deceleration after the vacuum booster fails due to regulation requirements), the vacuum degree in the vacuum booster is lower than the minimum boosting design value (namely the second preset vacuum degree), and the driver cannot be continuously supported to brake with the deceleration larger than 2.44m/s, so that the engine can be started at the moment, the driver is prompted to drive safely, and the driver can drive normally after the engine is started.
According to the invention, through the function of the electric control system, the vacuum degree of the vacuum booster after the vehicle is flamed out is monitored, the pressure is actively built, the driving safety is ensured, and the aim of driving the vehicle by a driver is fulfilled; the function development and calibration period has low cost, only a signal interaction strategy needs to be added, the power system can be actively pressurized and started, and the safety problem caused by flameout and sliding of the vehicle can be avoided.
Fig. 4 is a block diagram of a control device for vehicle stall coasting according to an embodiment of the present invention. As shown in fig. 4, the apparatus includes: the device comprises a judging unit 101, a vacuum degree detecting unit 102 and a control unit 103, wherein the judging unit 101 is used for judging the running state of the vehicle and the state of a brake pedal; the vacuum degree detection unit 102 is configured to detect a vacuum degree of a vacuum booster of the vehicle when it is determined that the driving state of the vehicle is stall coasting and the brake pedal is depressed; the control unit 103 is configured to control a motor of the vehicle to boost when it is detected that the vacuum degree is less than or equal to a first preset vacuum degree and the vehicle meets an active boosting condition.
In this embodiment, the determining unit 101 may determine a driving state of the vehicle and a state of the brake pedal, and after obtaining the determination result, send corresponding signals to the vacuum degree detecting unit 102, where the signals received by the vacuum degree detecting unit 102 represent that the driving state is stall and the state of the brake pedal is pressed, and detect the vacuum degree of the vacuum booster.
Fig. 5 is a block diagram showing a configuration of a vehicle stall coasting control device according to an embodiment of the present invention. As shown in fig. 5, the apparatus further includes a running state detection unit 201 for detecting at least one of an ignition switch position, a shift position, and an engine state of the vehicle, and a vehicle speed; the determining unit 101 includes a driving state determining unit 202, and the driving state determining unit 202 is configured to determine that the driving state of the vehicle is flameout and coasting when at least one of the ignition switch position is OFF, the gear is neutral, and the engine state is OFF is satisfied, and the vehicle speed is greater than or equal to a preset vehicle speed.
Further, the apparatus further includes a supercharging condition detection unit 301 configured to: detecting a brake master cylinder pressure of the vehicle; calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle; detecting a current deceleration of the vehicle; detecting a four wheel speed slip of the vehicle; the control unit 103 is further configured to: and controlling the motor of the vehicle to be boosted when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, and the four wheel speed of the vehicle is detected to be 0 in a slipping mode.
Further, the apparatus further includes a supercharging condition detection unit 301 configured to: detecting a brake master cylinder pressure of the vehicle; calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle; detecting a current deceleration of the vehicle; detecting a four wheel speed slip of the vehicle; the control unit 103 is further configured to: when the vacuum degree is detected to be smaller than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be smaller than or equal to the expected deceleration of the driver, the four-wheel speed of the vehicle is slipped to be 0, the pressure of the brake master cylinder is larger than 0, and the stroke of the brake pedal is larger than 0, the motor of the vehicle is controlled to be pressurized.
Further, the control unit 103 is further configured to: and controlling the engine of the vehicle to start when the vacuum degree is detected to be less than or equal to a second preset vacuum degree.
The above-described embodiment of the control device for vehicle stall coasting is similar to the above-described embodiment of the control method for vehicle stall coasting, and is not repeated herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. A method of controlling vehicle coasting upon stall, the method comprising:
judging the running state of the vehicle and the state of a brake pedal;
detecting the vacuum degree of a vacuum booster of the vehicle when the running state of the vehicle is flameout and sliding and the state of the brake pedal is treaded;
and when the vacuum degree is detected to be smaller than or equal to a first preset vacuum degree and the vehicle meets the active supercharging condition, controlling the motor of the vehicle to supercharge.
2. The method for controlling flameout coasting of a vehicle according to claim 1, wherein the determining of the driving state of the vehicle comprises:
detecting at least one of an ignition switch position, a gear position, and an engine state of the vehicle, and a vehicle speed;
and when at least one of the conditions that the ignition switch position is OFF, the gear is in a neutral gear and the engine state is OFF is met, and the vehicle speed is greater than or equal to a preset vehicle speed, judging that the running state of the vehicle is flameout and sliding.
3. The method for controlling flameout coasting of a vehicle according to claim 1,
the method further comprises the following steps:
detecting a brake master cylinder pressure of the vehicle;
calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle;
detecting a current deceleration of the vehicle;
detecting a four wheel speed slip of the vehicle;
when the detected vacuum degree is smaller than or equal to a first preset vacuum degree and the vehicle meets an active supercharging condition, controlling the motor of the vehicle to supercharge comprises the following steps:
and controlling the motor of the vehicle to be boosted when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, and the four wheel speed of the vehicle is detected to be 0 in a slipping mode.
4. The method for controlling flameout coasting of a vehicle according to claim 1,
the method further comprises the following steps:
detecting a brake master cylinder pressure of the vehicle;
calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle;
detecting a current deceleration of the vehicle;
detecting a four wheel speed slip of the vehicle;
when the detected vacuum degree is smaller than or equal to a first preset vacuum degree and the vehicle meets an active supercharging condition, controlling the motor of the vehicle to supercharge comprises the following steps:
and when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, the four-wheel speed of the vehicle is slipped to be 0, the pressure of the brake master cylinder is greater than 0, and the stroke of the brake pedal is greater than 0, controlling the motor of the vehicle to be pressurized.
5. The method for controlling flameout coasting of a vehicle according to claim 1, further comprising:
and controlling the engine of the vehicle to start when the vacuum degree is detected to be less than or equal to a second preset vacuum degree.
6. A control apparatus for flameout coasting of a vehicle, the apparatus comprising:
a judging unit, a vacuum degree detecting unit and a control unit, wherein,
the judging unit is used for judging the running state of the vehicle and the state of a brake pedal;
the vacuum degree detection unit is used for detecting the vacuum degree of a vacuum booster of the vehicle when the running state of the vehicle is flameout and sliding and the state of the brake pedal is treaded;
the control unit is used for controlling the motor of the vehicle to be pressurized when the fact that the vacuum degree is smaller than or equal to a first preset vacuum degree is detected, and the vehicle meets an active pressurization condition.
7. The method for controlling flameout coasting of a vehicle according to claim 6,
the apparatus further includes a running state detection unit for detecting at least one of an ignition switch position, a shift position, and an engine state of the vehicle, and a vehicle speed;
the judging unit comprises a driving state judging unit, and the driving state judging unit is used for judging that the driving state of the vehicle is flameout sliding when at least one of the ignition switch position is OFF, the gear is neutral and the engine state is OFF is satisfied, and the vehicle speed is greater than or equal to a preset vehicle speed.
8. The vehicle stall control apparatus as claimed in claim 6,
the apparatus further includes a supercharging condition detection unit configured to:
detecting a brake master cylinder pressure of the vehicle;
calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle;
detecting a current deceleration of the vehicle;
detecting a four wheel speed slip of the vehicle;
the control unit is further configured to:
and controlling the motor of the vehicle to be boosted when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, and the four wheel speed of the vehicle is detected to be 0 in a slipping mode.
9. The vehicle stall control apparatus as claimed in claim 6,
the apparatus further includes a supercharging condition detection unit configured to:
detecting a brake master cylinder pressure of the vehicle;
calculating a driver's desired deceleration from a brake master cylinder pressure of the vehicle;
detecting a current deceleration of the vehicle;
detecting a four wheel speed slip of the vehicle;
the control unit is further configured to:
and when the vacuum degree is detected to be less than or equal to a first preset vacuum degree, the current deceleration of the vehicle is detected to be less than or equal to the expected deceleration of the driver, the four-wheel speed of the vehicle is slipped to be 0, the pressure of the brake master cylinder is greater than 0, and the stroke of the brake pedal is greater than 0, controlling the motor of the vehicle to be pressurized.
10. The vehicle stall control apparatus as claimed in claim 6, wherein the control unit is further configured to:
and controlling the engine of the vehicle to start when the vacuum degree is detected to be less than or equal to a second preset vacuum degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149104.9A CN114590258A (en) | 2021-02-03 | 2021-02-03 | Method and device for controlling flameout and sliding of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149104.9A CN114590258A (en) | 2021-02-03 | 2021-02-03 | Method and device for controlling flameout and sliding of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114590258A true CN114590258A (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110149104.9A Pending CN114590258A (en) | 2021-02-03 | 2021-02-03 | Method and device for controlling flameout and sliding of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114590258A (en) |
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2021
- 2021-02-03 CN CN202110149104.9A patent/CN114590258A/en active Pending
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