Anti-collision method for unmanned vehicle

Abstract

The invention relates to the field of unmanned vehicles, namely the field of unmanned driving or automatic driving, in particular to an anti-collision method for an unmanned vehicle. The method comprises the following steps of: acquiring obstacle information around the unmanned vehicle; screening a first target obstacle according to the information of the unmanned vehicle and the obstacle; comparing whether the first target obstacle is located within the safe distance of the unmanned vehicle or not; if the first target obstacle is located within the safe distance and the unmanned vehicle is ina moving state, the unmanned vehicle is braked; and if the first target obstacle is located within the safe distance and the unmanned vehicle is in a stationary state, the unmanned vehicle kept stationary. According to the method, the target can be accurately screened, slow braking of the unmanned vehicle can be achieved, and rollover caused by braking is avoided.

Description

technical field [0001] The present invention relates to the field of unmanned vehicles, and more specifically, to a method for avoiding collisions of unmanned vehicles. Background technique [0002] In recent years, my country's auto industry has developed rapidly, and the application of unmanned vehicles has become more and more extensive, but its arrival will also bring a series of safety problems. Since driverless cars are controlled by computers, some emergencies on the road in reality may cause misjudgments by computers, causing driverless cars to lose control and causing traffic accidents. [0003] At present, under low-speed operating conditions (0-20km / h), the actuator can respond to the maximum deceleration output, and the overall stability of the vehicle body is relatively good; but under normal operating conditions (20-40km / h), there is no People and vehicles often apply full brakes to high-risk obstacles while driving, which often leads to dangerous scenarios su...

AI Technical Summary

Problems solved by technology

Since driverless cars are controlled by computers, some emergencies on the road in reality may cause misjudgments by the computer, causing driverless cars to lose control and causing traffic accidents

[0003] At present, under low-speed operating conditions (0-20km / h), the actuator can respond to the maximum deceleration output, and the overall stability of the vehicle body is relatively good; but under normal operating conditions (20-40km / h), there is no People and vehicles often apply full brakes to high-risk obstacles during driving, which often leads to dangerous scenarios such as vehicle rollovers

[0004] Existing unmanned vehicles cannot perform slow braking according to the vehicle speed and TTC (Time To Collision, collision time). When the vehicle decides to brake, it can only implement full braking, which is prone to dangerous scenarios such as rollover.

In addition, the existing unmanned vehicles cannot accurately screen the target obstacles, and often cause false braking, resulting in a waste of energy

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