System and method for reminding vehicles before and after out-of-control trucks on long downhill road sections

Abstract

The invention discloses a system for reminding the front and rear vehicles of an out-of-control truck on a long downhill road section, comprising: an inertial accelerometer, a vehicle odometer, a brake pipeline pressure sensor, a wheel speed sensor, a vehicle speed sensor, a data processor, and a vehicle communication device , roadside units and early warning devices. Also disclosed is a method for reminding the vehicles before and after the out-of-control truck on a long downhill road section, judging whether the vehicle is on a long downhill road according to the slope value i of the lane where the vehicle is currently located and the distance L that the vehicle has traveled continuously when the slope value i is greater than or equal to the slope threshold value segment; then according to the vehicle braking pressure P, the real-time speed w of the wheel and the real-time speed v, the slip rate S of the vehicle is calculated; then according to the slip rate S, it is judged whether the vehicle is in a braking out of control state; when the vehicle brakes out of control, the The surrounding vehicles of the out-of-control vehicle provide early warning. The invention has a large early warning range and accurate early warning information, so that vehicles around the out-of-control vehicle can effectively obtain the early warning information, effectively reducing traffic risks.

Description

technical field [0001] The invention relates to the technical field of traffic early warning on a long downhill road section, in particular to a system and method for reminding vehicles before and after an out-of-control truck on a long downhill road section. Background technique [0002] With the rapid development of my country's economy and the accelerated construction of infrastructure, the mileage of highways in mountainous and western regions has increased rapidly. However, since there are many long and downhill road sections on mountainous roads, it poses a huge test to the braking performance of trucks. In recent years, traffic accidents caused by brake failure on long downhill roads have been frequently reported, and the traffic safety situation on long downhill roads is still very severe. [0003] Due to the large vehicle load and long braking distance of trucks, it often takes a long time to brake on long downhill roads. When the temperature of the brake pads is h...

AI Technical Summary

Problems solved by technology

[0003] Due to the large vehicle load and long braking distance of trucks, it often takes a long time to brake on long downhill roads. When the temperature of the brake pads is high and the vehicle loses its braking ability, the driver often can only remind the near by pressing the car horn. Pay attention to avoiding vehicles in the surrounding environment with a distance, the warning range is small, and the prompt information is not clear, which cannot achieve the purpose of avoiding vehicles in a long distance, so that the entire traffic environment has traffic risks

Images