Vehicle collision warning method and device and vehicle

Abstract

The invention discloses a vehicle collision warning method and device and a vehicle. The method comprises following steps: collecting first driving information of the vehicle, wherein first driving information comprises first speed information of the vehicle; obtaining second speed information of a preceding vehicle and determining an operation condition of the preceding vehicle based on second speed information; calculating the security warning distance between the vehicle and the preceding vehicle based on a pre-set warning / brake model, the current operation condition of the preceding vehicle, second speed information and first driving information; acquiring the actual distance between the vehicle and the preceding vehicle; and warning collision risks when the actual distance is less than the security warning distance. The method has following beneficial effects: more reasonable warning distances are calculated through warning / brake models corresponding to different operation conditions such that possibility of too early or too late warning is reduced to the maximum degree; accuracy and real-time performance of danger warning are improved; and occurrences of vehicle collision are decreased.

Description

technical field [0001] The invention relates to the technical field of automobile anti-collision safety, in particular to a vehicle collision warning method and device and a vehicle with the collision warning device. Background technique [0002] The car anti-collision warning / collision algorithm is the core of the car anti-collision system. The accuracy of the results obtained by the algorithm directly affects the driving safety of the vehicle, which is of great significance to prevent car collisions and reduce traffic accidents. In the current research at home and abroad, the research on the safety distance logic algorithm is relatively common. The safety distance logic algorithm mainly takes the actual distance between vehicles as the research object. The minimum safe distance for a vehicle or obstacle to collide. [0003] Among the current safety distance logic algorithms, the more classic ones are Mazda model (Mazda model), Honda model (Honda model), Berkeley model (Be...

AI Technical Summary

Problems solved by technology

[0008] 1) Only the reaction time of the driver is considered, and the relevant time such as the brake is not considered, and the deceleration process of the car is not analyzed in depth, and it is simply treated as a uniform deceleration motion;

[0009] 2) The driver's characteristics are not considered in this model, and all drivers are not differentiated, resulting in large differences in personal feelings for different drivers;

[0010] 3) The model does not consider the condition of the vehicle operating conditions

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