Collision avoidance system and automatic braking method of electric automobile

Abstract

An electric vehicle collision avoidance system and automatic braking method comprising: an information collection module (101), used to collect, in real time, information regarding the distance between the electric vehicle and the vehicle or obstacle in front of same, and also current driving speed; an information processing module (102), used to calculate, in real time, the time required for the electric vehicle to reach the vehicle or obstacle in front of same as well as the regenerative braking safety time and mechanical braking safety time; an intelligent decision module (103), used to decide, on the basis of the time required for the electric vehicle to reach the vehicle or obstacle in front of same and also both the regenerative braking safety time and the mechanical braking safety time, whether to continue to proceed normally or to activate a regenerative braking mode or a composite braking mode involving simultaneous activation of the regenerative braking and mechanical braking modes; a regenerative braking module (104), which activates regenerative braking for the electric vehicle according to regenerative braking mode activation signals provided by the intelligent decision module; a mechanical braking module (105), which activates mechanical braking for the electric vehicle according to composite braking mode activation signals provided by the intelligent decision 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 vehicles, and comprehensively improve the intelligence of vehicles, the present invention provides an anti-collision system and automatic braking method for electric vehicles

Images