Collision avoidance system and automatic braking method of electric automobile

Abstract

The invention discloses a collision avoidance system and an automatic braking method of an electric automobile. The collision avoidance system comprises an information collecting module, an information processing module, an intelligent decision making module, a regenerative braking module and a mechanical braking module, wherein the information collecting module is used for real-timely collecting the distance between the electric automobile and a front vehicle or an obstacle and a current running speed; the information processing module is used for real-timely calculating rear-end time of the electric automobile and the front vehicle or the obstacle, regenerative braking safe time and mechanical braking safe time; the intelligent decision making module is used for deciding whether normal running is continuously kept or whether a regenerative braking mode is started or whether a combined braking mode of the regenerative braking mode and a mechanical braking mode is started according to the rear-end time of the electric automobile and the front vehicle or the obstacle, the regenerative braking safe time and the mechanical braking safe time; the regenerative braking module is used for starting regenerative braking for the electric automobile according to a regenerative braking mode starting signal provided by the intelligent decision making module; and the mechanical braking module starts mechanical braking for the electric automobile according to a combined braking mode starting signal provided by the intelligent decision making module.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and more specifically relates to an anti-collision system and an automatic braking method of an electric vehicle. Background technique [0002] Car rear-end collision is one of the most common traffic accidents. The main reason is that the driver does not keep a safe distance between cars during driving, or keeps a safe distance but does not respond in time. In order to solve the above problems, at present, there are already some methods to realize the collision avoidance problem of automobiles. For example: Chinese patent CN2468062Y discloses a "millimeter-wave vehicle anti-collision radar device", which uses components such as antennas, transceiver components, intermediate amplifiers, signal processing, alarm and display, function generators, and power supplies. When the distance of the object is less than the safety threshold, a photoelectric alarm is sent to remind the driver, but ...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of fast, accurate and timely automatic avoidance of rear-end collisions and collisions in the driving process of electric vehicle

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