Self-vehicle active avoidance system and avoidance method based on vehicle-vehicle communication

Abstract

The invention relates to a self-vehicle active avoidance system based on vehicle-vehicle communication. The self-vehicle active avoidance system comprises a receiving module, a self vehicle information collecting module, an information processing module, an action response module and a sending module, wherein the receiving module is used for receiving front vehicle running information sent by a front vehicle; the self vehicle information collecting module is used for collecting self vehicle running information; the information processing module is used for obtaining the current road information, and is used for judging whether the self vehicle and the front vehicle have a collision occurrence risk or not according to the front vehicle running information, the self vehicle running information and the current road information; when the condition that the self vehicle and the front vehicle have the collision occurrence risk is judged, a control signal for executing the risk avoidance action is output; the action response module is used for responding the control signal output by the information processing module, and controls the self vehicle to execut active warning, active braking or active steering; the sending module is used for sending the self vehicle running information to a back vehicle. The invention also provides a self-vehicle active avoidance system based on vehicle-vehicle communication. The system and the method have the advantage that the risk that vehicles running in the same direction generate rear-end collision and receive rear-end collision can be reduced.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a self-vehicle active avoidance system and an avoidance method based on vehicle-vehicle communication. Background technique [0002] According to the "Annual Report on Road Traffic Accidents of the People's Republic of China", tailgating is the main accident form of traffic accidents in my country, and this accident form is particularly serious for expressways. [0003] Sudden braking of the vehicle in front is the main cause of tailgating collisions, especially serial tailgating collisions. [0004] An existing technology to solve the emergency braking of vehicles is "emergency braking reminder". When the vehicle is in the state of sudden braking, the system transmits the emergency braking logic signal to the brake lights, and the brake lights will be activated at a frequency of 3.5Hz per second. Blinking; while performing 4m / s 2 When decelerating or without ABS cont...

AI Technical Summary

Problems solved by technology

However, the system generally uses front-facing radars, cameras, and other sensors to detect danger ahead, which is affected by inherent attributes such as sensor recognition accuracy and detection distance, as well as environmental factors such as weather and road conditions, especially when braking vehicles ahead. When it is blocked (for example, it is blocked by other vehicles, buildings, trees, etc., which can easily lead to a series of tailgating collisions), the automatic emergency braking system cannot detect danger in advance and brake the vehicle

The system cannot completely avoid collisions when the vehicle is driving at high speed, but can only reduce the collision speed, which will still cause damage to the occupants in the vehicle

[0006] Constrained by the existing technology, when the turning radius is too small, the weather is bad, and the vehicle in front is blocked, etc., the vehicle in front on the driving track of the vehicle brakes suddenly, and the driver of the vehicle cannot respond to the brake in time, resulting in a rear-end collision accident. or when the self-vehicle finds that there is a collision risk ahead, the automatic emergency braking system acts to cause the self-vehicle to brake suddenly, resulting in a rear-end collision accident

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