Automobile lane change collision avoidance control method

Abstract

The invention discloses an automobile lane change collision avoidance control method, and belongs to the field of automobile active safety. Automobile related information and external environment related information are collected by related sensors on an automobile, the related information is input to an electronic control unit (ECU), and the ECU analyzes signals of all the sensors, determines the automobile driving emergency situation, rapidly schedules a lane change route, and establishes a longitudinal least safety distance model. According to the scheduled route and the safety distance model, the opening degree and braking force of a throttling valve are reasonably controlled; a steering motor is controlled at proper position so that the automobile can be driven along the scheduled route, and the input amount of a yaw velocity sensor is detected at any time; on the premise of ensuring stability, a steering wheel is adjusted to rotate to the motor, it is ensured that the automobile track is well tracked, and the aim of collision avoidance is achieved.

Description

technical field [0001] The invention relates to a collision avoidance control method, in particular to a vehicle lane change collision avoidance control method, which belongs to the field of vehicle active safety. Background technique [0002] In terms of active collision avoidance of automobiles, when there is a dangerous situation that may cause a collision, people usually use braking to avoid collisions between the vehicle and the obstacle (or the vehicle in front). Only when the braking distance can be reduced or avoided by braking, there are certain limitations. The brake collision avoidance system only needs to consider the situation of the vehicle lane, which is relatively simple and is often used in solving the collision avoidance problem. At present, it is generally to use radar to detect the distance between vehicles. Although under test conditions, this method can make the car stop before collision by adopting measures such as automatic alarm, automatic decelerat...

AI Technical Summary

Problems solved by technology

At present, it is generally to use radar to detect the distance between vehicles. Although under test conditions, this method can make the car stop before collision by adopting measures such as automatic alarm, automatic deceleration, and automatic braking, but it will cause false alarms and false alarms. Movement and other issues, it is difficult to meet the requirements of various practical and complex traffic environments, especially people and cars that appear suddenly at close range cannot be accurately identified

In such an emergency situation, when the driver finds an obstacle, he often has no ability to control the car to drive safely, and the purpose of avoiding a collision cannot be achieved only by braking.

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