CN-121989925-A - Automatic control method and device for vehicle collision prevention

CN121989925ACN 121989925 ACN121989925 ACN 121989925ACN-121989925-A

Abstract

The application relates to the technical field of automatic control of vehicles, in particular to an automatic control method and device for preventing collision of vehicles, wherein the method comprises the steps of reminding a driver after detecting an obstacle in a preset range of the vehicle and evaluating the collision risk level; the speed of the vehicle is automatically regulated when the vehicle is at light danger, the driver controls the anti-collision, and the system automatically controls the anti-collision when the vehicle is at heavy danger. And the driver state information is acquired at the same time, whether the driver is abnormal or not is judged, the warning is sent when the state is abnormal, the auxiliary driving mode is started to control the anti-collision of the vehicle, and the anti-collision operation is executed according to the corresponding danger level when the state is normal. According to the application, the anti-collision automatic control system is introduced to assist the driver to accurately judge when the driver encounters a dangerous condition, and corresponding auxiliary driving operation is timely executed, so that the safety and reliability of vehicle driving are effectively improved. Therefore, the problems that the existing vehicle anti-collision system is single in function, difficult to effectively analyze emergency conditions, timely execute corresponding operations and the like are solved.

Inventors

WANG JIAN
LIU WEIHAI
WU XIANGJUN
NI CHUNPENG
LI JING

Assignees

中国第一汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260210

Claims (10)

1. An automatic control method for preventing a vehicle from collision is characterized by comprising the following steps: Detecting at least one obstacle of a current vehicle in a preset range, prompting a driver of the current vehicle for the obstacle in response to the detection of the at least one obstacle, and evaluating a collision risk level corresponding to the at least one obstacle, wherein the collision risk level comprises a light risk level and a heavy risk level; When the collision risk level is the light risk level, automatically adjusting the vehicle speed, controlling the current vehicle to execute corresponding anti-collision driving operation through the driver, and when the collision risk level is the heavy risk level, automatically controlling the current vehicle to execute corresponding anti-collision driving operation; And when the current vehicle is controlled to execute corresponding anti-collision driving operation, acquiring state information of the driver, judging whether the driver meets a preset state abnormal condition according to the state information, if so, sending a state abnormal prompt to the driver, and starting an auxiliary driving mode of the current vehicle to control the vehicle to execute corresponding anti-collision driving operation, otherwise, executing corresponding anti-collision driving operation according to different collision danger levels through the driver or automatically controlling the current vehicle.
2. The automatic control method for preventing a vehicle from collision according to claim 1, wherein detecting at least one obstacle of a current vehicle in a preset range, in response to detecting the at least one obstacle, performing obstacle reminding on a driver of the current vehicle, and evaluating a collision risk level corresponding to the at least one obstacle, includes: Controlling the current vehicle to perform a preset vehicle environment awareness operation to acquire the at least one obstacle of the current vehicle within the preset range through at least one visual and/or optical sensor; Acquiring environment dynamic change information in the preset range, and performing potential risk assessment on the at least one obstacle according to the environment dynamic change information to obtain a corresponding risk assessment result; Judging whether the driver can take corresponding anti-collision operation within a preset time period according to the risk assessment result, if so, judging that the collision risk level corresponding to the at least one obstacle is the mild risk level, otherwise, judging that the collision risk level corresponding to the at least one obstacle is the severe risk level.
3. The vehicle collision-prevention automatic control method according to claim 1, characterized by further comprising, after sending a state abnormality alert to the driver and turning on an auxiliary driving mode of the current vehicle to control the vehicle to perform a corresponding collision-prevention driving operation: After sending the state abnormality reminding to the driver, judging whether the driver takes corresponding measures, wherein when the driver does not take corresponding measures, the reminding level of the state abnormality reminding is adjusted, and based on a preset reminding mode, the state abnormality reminding after the reminding level is adjusted is sent to the driver, so that the driver executes corresponding anti-collision driving operation according to the state abnormality reminding, wherein the reminding mode comprises sound reminding, seat vibration reminding and/or visual reminding; Judging whether the driver executes corresponding response operation after receiving the state abnormality prompt after adjusting the prompt level, wherein under the condition that the corresponding response operation is not executed, the current vehicle is controlled to start the auxiliary driving mode so as to execute corresponding deceleration or braking operation, and judging whether the current vehicle collides after executing the corresponding deceleration or braking operation; if the current vehicle collides, controlling the current vehicle to execute emergency stop operation by using the auxiliary driving mode; And if the current vehicle does not collide, guiding the current vehicle to a preset safety area by using the auxiliary driving mode, and controlling the auxiliary driving mode to record corresponding anti-collision driving data, wherein the anti-collision driving data comprises anti-collision time, anti-collision place and anti-collision process information.
4. The vehicle collision-prevention automatic control method according to claim 1, characterized by further comprising: Detecting the collision intensity of the current vehicle through a plurality of collision sensors at different positions of the current vehicle when the current vehicle collides, and sending an activation signal to a preset air bag control unit through the plurality of collision sensors under the condition that the collision intensity reaches a preset collision threshold value; Using the air bag control unit to expand an air bag according to the activating signal to control an air bag igniter to ignite an air generator so as to generate air to fill the air bag, so that the air bag is expanded from a steering wheel or an instrument panel, and simultaneously, controlling a preset safety belt pretensioner to fasten each passenger in the current vehicle on a corresponding seat; After the airbag contacts the driver, controlling the surface air hole of the airbag to execute corresponding air discharging operation at a first preset speed, and after the current vehicle collides, controlling the airbag to execute corresponding air discharging operation at a second preset speed to rapidly discharge air, and unlocking the safety belt pretensioner, so that each passenger leaves the current vehicle.
5. An automatic collision-preventing control device for a vehicle, comprising: The obstacle detection module is used for detecting at least one obstacle of the current vehicle in a preset range, prompting the driver of the current vehicle for the obstacle in response to the detection of the at least one obstacle, and evaluating the collision risk level corresponding to the at least one obstacle, wherein the collision risk level comprises a light risk level and a heavy risk level; The execution module is used for automatically adjusting the speed of the vehicle when the collision risk level is the light risk level, controlling the current vehicle to execute corresponding anti-collision driving operation through the driver, and automatically controlling the current vehicle to execute corresponding anti-collision driving operation when the collision risk level is the heavy risk level; The anti-collision module is used for acquiring the state information of the driver while controlling the current vehicle to execute corresponding anti-collision driving operation, judging whether the driver meets a preset state abnormal condition according to the state information, sending a state abnormal prompt to the driver if the driver meets the preset state abnormal condition, starting an auxiliary driving mode of the current vehicle so as to control the vehicle to execute corresponding anti-collision driving operation, and otherwise, executing corresponding anti-collision driving operation according to different collision danger levels through the driver or automatically controlling the current vehicle.
6. The vehicle collision avoidance automatic control device of claim 5 wherein the obstacle detection module comprises: a control unit for controlling the current vehicle to perform a preset vehicle environment sensing operation to collect the at least one obstacle of the current vehicle within the preset range through at least one visual and/or optical sensor; The acquisition unit is used for acquiring the environment dynamic change information in the preset range and carrying out potential risk assessment on the at least one obstacle according to the environment dynamic change information so as to obtain a corresponding risk assessment result; And the judging unit is used for judging whether the driver can take corresponding anti-collision operation within a preset time according to the risk evaluation result, judging that the collision risk level corresponding to the at least one obstacle is the mild risk level if the driver can take corresponding anti-collision operation within the preset time, and judging that the collision risk level corresponding to the at least one obstacle is the severe risk level if the driver can take corresponding anti-collision operation within the preset time.
7. The vehicle collision-prevention automatic control device according to claim 5, further comprising: The adjusting module is used for sending a state abnormality prompt to the driver and starting an auxiliary driving mode of the current vehicle so as to control the vehicle to execute corresponding anti-collision driving operation, and judging whether the driver takes corresponding measures after sending the state abnormality prompt to the driver, wherein when the driver does not take the corresponding measures, the prompting grade of the state abnormality prompt is adjusted, and based on a preset prompting mode, the state abnormality prompt after the prompting grade is adjusted is sent to the driver, so that the driver executes corresponding anti-collision driving operation according to the state abnormality prompt, and the prompting mode comprises sound prompting, seat vibration prompting and/or visual prompting; The judging module is used for judging whether the driver executes corresponding response operation after receiving the state abnormality prompt after adjusting the prompt level, wherein under the condition that the corresponding response operation is not executed, the current vehicle is controlled to start the auxiliary driving mode so as to execute corresponding deceleration or braking operation, and whether the current vehicle collides after the corresponding deceleration or braking operation is executed is judged; A parking module for controlling the current vehicle to perform an emergency parking operation using the auxiliary driving mode if the current vehicle collides; and the recording module is used for guiding the current vehicle to a preset safety area by utilizing the auxiliary driving mode if the current vehicle is not collided, and controlling the auxiliary driving mode to record corresponding anti-collision driving data, wherein the anti-collision driving data comprises anti-collision time, anti-collision place and anti-collision process information.
8. A vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the vehicle collision avoidance automatic control method according to any one of claims 1 to 4.
9. A computer-readable storage medium having stored thereon a computer program, characterized in that the program is executed by a processor for realizing the vehicle collision-prevention automatic control method according to any one of claims 1 to 4.
10. A computer program product comprising a computer program, characterized in that the computer program is executed for implementing the vehicle collision avoidance automatic control method according to any one of claims 1 to 4.

Description

Automatic control method and device for vehicle collision prevention Technical Field The application relates to the technical field of automatic control of vehicles, in particular to an automatic control method and device for preventing collision of vehicles. Background The automobile anti-collision system can automatically find vehicles, pedestrians or other obstacle objects which possibly collide with the automobile, give an alarm or take measures such as braking or avoiding at the same time so as to avoid collision. However, the existing vehicle anti-collision system has a single function, is difficult to effectively analyze the emergency situation and execute corresponding operations in time, and needs to be solved. Disclosure of Invention The application provides an automatic control method and device for vehicle anti-collision, which are used for solving the problems that the existing vehicle anti-collision system is single in function, difficult to effectively analyze emergency, and capable of timely executing corresponding operation. An embodiment of the first aspect of the application provides a vehicle anti-collision automatic control device, which comprises the steps of detecting at least one obstacle of a current vehicle in a preset range, responding to the detection of the at least one obstacle, reminding a driver of the current vehicle of the obstacle, evaluating a collision risk level corresponding to the at least one obstacle, wherein the collision risk level comprises a light risk level and a heavy risk level, automatically adjusting the vehicle speed when the collision risk level is the light risk level, controlling the current vehicle to execute corresponding anti-collision driving operation through the driver, automatically controlling the current vehicle to execute corresponding anti-collision driving operation when the collision risk level is the heavy risk level, acquiring state information of the driver while controlling the current vehicle to execute corresponding anti-collision driving operation, judging whether the driver meets preset state abnormal conditions according to the state information, sending the state abnormal reminding to the driver if the state abnormal conditions are met, and starting the corresponding anti-collision driving operation of the current vehicle according to the corresponding anti-collision driving mode of the driver, or else, controlling the current vehicle to execute corresponding anti-collision driving operation according to different driving modes. According to the technical means, the anti-collision automatic control system is introduced to assist a driver to accurately judge when the driver encounters a dangerous condition, and corresponding auxiliary driving operation is timely executed, so that the safety and reliability of vehicle driving are effectively improved. Optionally, in one embodiment of the present application, the detecting at least one obstacle of the current vehicle in the preset range, in response to detecting the at least one obstacle, performing obstacle reminding on a driver of the current vehicle and evaluating a collision risk level corresponding to the at least one obstacle, includes controlling the current vehicle to perform a preset vehicle environment sensing operation to acquire the at least one obstacle of the current vehicle in the preset range through at least one visual and/or optical sensor, acquiring environmental dynamic change information in the preset range, performing potential risk evaluation on the at least one obstacle according to the environmental dynamic change information to obtain a corresponding risk evaluation result, and judging whether the driver can take a corresponding anti-collision operation within a preset time period according to the risk evaluation result, if the driver can take the corresponding anti-collision operation within the preset time period, judging that the collision risk level corresponding to the at least one obstacle is the mild risk level, and judging that the collision risk level corresponding to the at least one obstacle is the severe risk level. According to the technical means, the embodiment of the application perceives the surrounding environment of the vehicle through multi-sensor fusion, combines dynamic analysis and prediction of collision risk of the vehicle and the object, and classifies the risk level according to the operable space of the driver, thereby improving the accuracy of collision risk identification and the rationality of risk classification. Optionally, in one embodiment of the present application, after sending a state anomaly alert to the driver and starting an auxiliary driving mode of the current vehicle to control the vehicle to execute a corresponding anti-collision driving operation, the method further includes judging whether the driver takes a corresponding measure after sending the state anomaly alert to the driver, wherein when the driver does