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Vehicle automatic braking method, device and equipment and storage medium

An automatic braking and vehicle technology, applied in automatic starting devices, brakes, etc., can solve problems such as hidden safety hazards and ignoring vehicles

Active Publication Date: 2021-01-22
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The automatic emergency braking system in the prior art only considers the vehicle directly in front of the vehicle as the detection object, and ignores the vehicles in the adjacent lane, which has a large safety hazard

Method used

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  • Vehicle automatic braking method, device and equipment and storage medium
  • Vehicle automatic braking method, device and equipment and storage medium
  • Vehicle automatic braking method, device and equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] see figure 1 , a method for automatic braking of a vehicle provided in the first embodiment of the present invention. It can be executed by vehicle automatic braking equipment (hereinafter referred to as braking equipment), in particular, by one or more processors in the braking equipment, so as to realize the following steps:

[0093] S101. Obtain the positional relationship of the vehicle in front relative to the vehicle in front, and determine the lane where the vehicle in front is located.

[0094] In this embodiment, the braking device may be a control chip of an automobile. The control chip can be electrically connected with various sensors and control terminals of the car to realize data interaction, thereby obtaining parameters detected by the sensors and controlling the control terminals in a timely manner.

[0095] Such as figure 2 As shown, the advancing direction of the own vehicle is the first direction, and the line connecting the preceding vehicle and...

Embodiment 2

[0124] The realization principle and technical effects of the vehicle automatic control method provided in this embodiment are the same as those in Embodiment 1. For a brief description, for those not mentioned in this embodiment, reference may be made to the corresponding content in Embodiment 1.

[0125] Such as image 3 As shown, in this embodiment, the vehicle automatic braking method also includes the following steps:

[0126] S103, when it is judged that the vehicle in front is in the lane of the own vehicle, or when it is judged that the vehicle in front has a tendency to merge into the lane of the own vehicle, input the current motion parameters and the driver's reaction time into the pre-trained second safety distance model to obtain the first Two safety distance parameters. Wherein, the motion parameters include the currently estimated road surface adhesion coefficient.

[0127] In this embodiment, in addition to controlling the automatic braking of the vehicle, it...

Embodiment 3

[0198] An embodiment of the present invention provides an automatic braking device for a vehicle, which includes a position relationship acquisition module, a preceding vehicle merge judgment module, a first safety distance parameter acquisition module, and an automatic braking module.

[0199] The position relationship acquisition module 501 is used to acquire the position relationship of the vehicle in front relative to the own vehicle, and determine the lane where the vehicle in front is located.

[0200] The preceding vehicle merging judgment module 502 is used to calculate the lateral distance of the preceding vehicle relative to the own vehicle and the heading angle of the preceding vehicle according to the positional relationship when it is judged that the preceding vehicle is located in the adjacent lane of the own vehicle lane, and according to the heading angle and the lateral The distance judges whether the vehicle in front has a tendency to merge into the own vehicl...

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Abstract

The invention discloses a vehicle automatic braking method, device and equipment and a storage medium, and relates to the technical field of vehicle braking control. The method comprises the steps ofobtaining the position relation of a front vehicle relative to a host vehicle, and judging a lane where the front vehicle is located; when it is judged that the front vehicle is located on the adjacent lane of the lane where the host vehicle is located, calculating the transverse distance of the front vehicle relative to the host vehicle and the course angle of the front vehicle according to the position relation, and judging whether the front vehicle has the tendency to converge into the lane where the hos vehicle is located according to the course angle and the transverse distance; when it is judged that the front vehicle has the tendency to converge into the lane of the host vehicle, inputting the current motion parameters into a pre-trained first safe distance model to obtain first safe distance parameters, wherein the motion parameters comprise a currently estimated pavement adhesion coefficient; and controlling the vehicle to brake according to the first safety distance parameterand the actual longitudinal distance between the two vehicles. By means of the method, automatic braking can be achieved under the front vehicle cut-in working condition, the situation of collision with the front vehicle is effectively avoided, and practicability is greatly improved.

Description

technical field [0001] The present invention relates to the technical field of vehicle braking control, in particular to a vehicle automatic braking method, device, equipment and storage medium. Background technique [0002] Automatic emergency braking system uses on-board sensors (such as millimeter-wave radar, on-board camera, etc.) In invalid or emergency situations, the system will automatically and forcibly brake, enabling the vehicle to realize the active safety technology of autonomously avoiding collisions with obstacles. The automatic emergency braking system is an important function of the advanced driver assistance system integrating perception, control and decision-making, which can improve driving safety and reduce traffic accidents. [0003] The automatic emergency braking system in the prior art only considers the vehicle directly in front of the vehicle as the detection object, and ignores the vehicles in the adjacent lane, which has a relatively large poten...

Claims

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Application Information

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IPC IPC(8): B60T7/12
CPCB60T7/12B60T2201/022
Inventor 高秀晶陈波波
Owner XIAMEN UNIV OF TECH
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