Anti-collision system and control method of electric automobile and electric automobile

Abstract

The invention discloses an anti-collision system and control method of an electric automobile and the electric automobile. The system comprises an automobile speed detecting device, an automobile distance detecting device, a wheel motor braking device arranged on a host automobile and a whole automobile controller, wherein the wheel motor braking device comprises a wheel braking motor and is used for applying braking force to a wheel when receiving an emergency braking signal so as to conduct regenerative braking on the host automobile; and when the host automobile speed is larger than a predetermined automobile speed and a first relative distance is smaller than a predetermined distance, the whole automobile controller determines collision time according to the host automobile speed, the speed of a front automobile and the first relative distance and sends the emergency braking signal to the wheel motor braking device when the collision time is smaller than a predetermined time. According to the anti-collision system, the automobile can be effectively prevented from rear-end collision, the advantages of high braking response speed and short braking distance are achieved, and accordingly automobile safety can be guaranteed; and in addition, the anti-collision system has the advantages of simple structure and low cost.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an electric vehicle anti-collision system, a control method and the electric vehicle. Background technique [0002] At present, there are some related technologies that can warn the driver when the vehicle is about to collide with the vehicle in front, so as to remind the driver to pay attention to slow down and avoid rear-end collision. This improves driving safety to a certain extent. However, if the driver does not slow down, a rear-end collision is usually still possible. In addition, there are some related technologies that can control the hydraulic braking system to perform automatic braking when it is judged that a rear-end collision with the vehicle in front will occur. However, the structure of the hydraulic braking system itself is relatively complicated, and the response of the hydraulic braking system is slow and costly. High, lagging braking is sometimes not en...

AI Technical Summary

Problems solved by technology

However, rear-end collisions are usually still possible if the driver does not slow down

In addition, there are some related technologies that can control the hydraulic braking system to perform automatic braking when it is judged that a rear-end collision with the vehicle in front will occur. However, the structure of the hydraulic braking system itself is relatively complicated, and the response of the hydraulic braking system is slow and costly. High, laggy braking is sometimes not enough to keep the road safe

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