Rear collision early warning assisting system for vehicle

Abstract

The invention provides a rear collision early warning assisting system for a vehicle, and relates to the technical field of vehicle safety. The rear collision early warning assisting system comprises a detecting radar and a vehicle-mounted control unit, wherein the detecting radar is arranged on the lateral rear part of the vehicle and used for detecting a real-time distance between the current vehicle and a rear coming vehicle; a distance threshold or a time threshold is set in the vehicle-mounted control unit, the vehicle-mounted control unit is used for comparing the real-time distance with the distance threshold, or comparing to-be-collided time obtained through conversion of relative speeds of the two vehicles with the time threshold, when the real-time distance is smaller than the distance threshold or the to-be-collided time is smaller than the time threshold, the vehicle-mounted control unit controls the vehicle to be in an rear collision early-warning assisting state, and the vehicle-mounted control unit controls vehicle body components to send audible and visual alarms so as to remind the vehicle behind the current vehicle to pay attention. The rear collision early warning assisting system can evaluate the rear collision of the vehicle according to the distance between the current vehicle and the vehicle behind the current vehicle, and if the distance is too short, the evaluated collision possibility is high, then the front vehicle automatically sends the audible and visual alarm so as to remind the rear vehicle to pay attention; and after being reminded, the rear vehicle can brake or take other measures to improve the driving safety.

Description

technical field [0001] The invention relates to the technical field of vehicle safety, in particular to a rear collision warning auxiliary system for vehicles. Background technique [0002] The safety of vehicles driving cars has been paid more and more attention by consumers. It is well known that rear-end collision accidents often occur due to reasons such as too small distance between the vehicle and high speed, slow reaction of the driver, lack of concentration, sudden braking of the vehicle in front, etc. In particular, the speed of the fast lane is generally high, so once two cars collide with each other, it will cause a series of rear-end collisions. The chain reaction is very strong and destructive. [0003] At present, there are systems on the market that automatically brake or warn the distance of the vehicle in front, but there is no system that actively provides anti-collision warnings for vehicles behind. This part of the safety gap needs to be further protected...

AI Technical Summary

Problems solved by technology

[0002] The safety of vehicles driving cars has been paid more and more attention by consumers. It is well known that rear-end collision accidents often occur due to the small distance between the vehicle and the high speed, the driver's slow response, lack of concentration, and sudden braking of the vehicle in front. In particular, the speed of the fast lane is generally high, so once two cars collide with each other, it will cause a series of rear-end collisions. The chain reaction is very strong and very destructive.

[0003] At present, there are systems on the market that automatically brake or warn the distance of the vehicle in front, but there is no system that actively provides anti-collision warnings for the vehicle behind. This part of the safety gap needs further protection, or supplementary

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