Abnormal braking rear-ending prevention early warning method, device and vehicle

Abstract

The invention discloses an abnormal braking rear-ending prevention early warning method, device and a vehicle. The method comprises the following steps that a speed information of the front vehicle isobtained in real time, the speed information comprises a vehicle deceleration information; whether the front vehicle is braked or not is judged according to the speed information; the brake light information of the front vehicle is acquired when the front vehicle decelerates, whether a brake light is on or not is judged; when the brake light of the front vehicle is not on, a warning message is sent to a driver of the vehicle; when the brake light of the front vehicle is on, a road condition information of a road in front is obtained, the road condition information is a road congestion information; whether the front vehicle belongs to abnormal braking or not is judged according to the deceleration information of the front vehicle and the road condition information of the road in front; andwhen the fact that the front vehicle belongs to abnormal braking is judged, the warning information is sent to the driver of the vehicle. According to the abnormal braking rear-ending prevention early warning method, device and the vehicle, the abnormal braking condition of the front vehicle can be judged in time according to the braking frequency and road condition information of the front vehicle, so that the early intervention is convenient to avoid the collision risk.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an anti-rear collision warning method and device for abnormal braking and a vehicle. Background technique [0002] With the rapid development of the economy, the number of cars per capita has increased year by year. While cars greatly facilitate people's lives, they also bring increasingly prominent road traffic safety problems. Vigorously developing intelligent transportation system is one of the important means to solve traffic problems. The smart car system is an important part of the intelligent transportation system. The smart car system is ADAS, which uses advanced on-board sensors (millimeter wave radar, camera, ultrasonic radar, laser radar, etc.), advanced ECU controllers and actuators to automatically control the vehicle Or issue an early warning to ensure car safety. At present, L2-level intelligent driving based on forward-looking radar and / or forward-looking camera...

AI Technical Summary

Problems solved by technology

When the vehicle in front suddenly brakes suddenly, the driver of the vehicle behind does not have enough time and braking distance to take emergency braking measures. At this time, if the vehicle behind is equipped with AEB function, AEB may be triggered, but AEB will generate a large load when triggered. Forward acceleration, the driver and the inertia will cause great discomfort, and even the rear passengers may be injured in the car because they are not wearing seat belts. Therefore, before the AEB and other functions are triggered, the front car Early warning of possible rear-end collision hazard due to unreasonable braking of the vehicle in front is necessary

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