Anti-collision method and device for a vehicle

Abstract

A kind of automobile anti-collision method, taking this car as a reference vehicle, comprising the following steps, obtaining the current speed V0 of this car, the current speed V1 of the previous car, the relative distance D1 between the current car and the previous car, and the current safety distance of this car SF=S0+S1+S2+S3, the vehicle warning distance SA, SA=V0tA, tA is the preset warning time, when SF+SA

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a method and device capable of preventing automobile collision accidents in advance. Background technique [0002] At present, the number of cars is increasing, and the density of vehicles on the road is also increasing, followed by more and more rear-end collision accidents. For this reason, major automobile manufacturers have invented various pre-collision systems to reduce the risk of rear-end collisions. The principle is based on the relative movement of the vehicle and the front and rear adjacent vehicles, and then calculate the rear-end collision risk through data processing to remind drivers to take corresponding measures. Hedging measures or automatically take corresponding measures to avoid risks. The disadvantage of the current anti-collision system is that it cannot solve the problem of the largest blind spot for drivers on small vehicles such as cars and SU...

AI Technical Summary

Problems solved by technology

The disadvantage of the current anti-collision system is that it cannot solve the problem of the largest blind spot for drivers on small vehicles such as cars and SUVs (because the driver's sitting posture is low, the road in front of the car adjacent to the front vehicle becomes the largest blind spot) ; At the same time, because the data processing does not include the road conditions in front of the vehicle adjacent to the vehicle in front, when the vehicle is driving at high speed, if the driving safety distance preset by the system is too small, it will cause the risk of rear-end collision of the vehicle or the rear-end collision of the vehicle. Risk of rear-end collision (especially when the vehicle in front is suddenly stopped due to rear-end collision); if the driving safety distance is too large, it is easy to cause the fact that it is difficult to ensure this safety distance during driving (especially on holidays, when the traffic density is too large, according to the The preset safety distance of the existing pre-collision system is difficult to achieve)

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