Vehicle collision avoidance system and track planning method thereof

Abstract

The invention discloses a vehicle collision avoidance system and a track planning method thereof. The system comprises a forward looking radar, a camera, a vehicle speed sensor, a yaw angular velocity sensor, a sideslip angle sensor, a signal processing module, an electronic control unit (ECU), a throttle controller, a steering controller and a braking controller. When a vehicle is driven, signals which are transmitted by all sensors through the signal processing module are collected in real time by the electronic control unit, the road condition and the vehicle condition of the vehicle at the moment are judged in real time, if hazardous conditions possibly occur, a continuous collision avoidance executable track is generated by the ECU according to a track planning program preset in the ECU, and the related signals are output to the throttle controller, the steering controller and the braking controller for corresponding operations, so that the hazardous conditions are avoided. According to the vehicle collision avoidance system, a driver can be assisted to operate the vehicle in case of an emergency, so that the active driving safety performance can be increased.

Description

technical field [0001] The invention relates to the field of automobile auxiliary driving, in particular to an automobile active collision avoidance system and a trajectory planning method thereof. Background technique [0002] With the rise of intelligent transportation on a global scale, automobile assisted driving technology has received more and more attention. The main purpose of its research is to reduce the incidence of increasingly serious traffic accidents and improve the efficiency of existing road traffic. Numerous research institutions and industrial design units in the world are investing a lot of manpower, material and financial resources in the research and development process of related key technologies. [0003] Active collision avoidance system is an important research content of automobile assisted driving technology. The main purpose of its research is to improve the safety performance of vehicle driving. It mainly uses modern information technology and s...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of automobile active collision avoidance system and its trajectory planning method for the defects involved in the background technology, which solves the trajectory planning problem of the active collision avoidance system in emergency situations, through software and hardware The combined method can effectively avoid obstacles while ensuring the stability of the car's handling, avoiding the occurrence of traffic accidents, and realizing the active safety function of the car

Images