Vehicle braking control method and device

Abstract

The invention provides a vehicle braking control method and device. The method comprises the steps of collecting a road surface peak value attachment coefficient of a current road surface collected by a vehicle and a current distance from the vehicle to an obstacle ahead in real time; determining a maximum braking deceleration of the vehicle according to the road surface peak value attachment coefficient; determining a braking alarming distance and a safe braking distance of the vehicle according to the maximum braking deceleration; comparing the current distance of the vehicle with the braking alarming distance and the safe braking distance, and controlling the vehicle to conduct braking according to a comparison result. According to the vehicle braking control method and device, the road surface peak value attachment coefficient of a road is adopted to determine the braking alarming distance and the safe braking distance corresponding to the road, different road surface peak value attachment coefficients correspond to different braking alarming distances and safe braking distances, and thus the situation that the vehicle collides with the obstacle ahead or a vehicle ahead caused when braking is too late is avoided.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile braking control method and device. Background technique [0002] When the driver is driving a car, it is inevitable that the driver will not be able to concentrate due to various reasons. At this time, if the car encounters a dangerous situation ahead, it is difficult for the driver to brake in time. Therefore, a driving assistance technology that can automatically brake when a car encounters an emergency has emerged—Autonomous Emergency Braking (AEB). [0003] The AEB in the prior art generally detects the distance and relative speed between the car where the AEB is located and the car or obstacle in front through radar or camera, and calculates the warning distance and safety distance threshold according to the motion state of the car. When the distance between objects is less than the warning distance, an alarm will be sent to the driver to remind the driver...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the embodiments of the present invention is to provide a method and device for controlling the braking of an automobile to solve the problem of calculating the warning distance and safety distance threshold of the automobile according to the high adhesion coefficient in the prior art, so that when the automobile is on a road surface with a low adhesion coefficient , it will cause the brake to be too late, causing the car to collide with the obstacle in front or the car

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