Safety vehicle speed prediction method and system and vehicle-mounted terminal

Abstract

The invention discloses a safety vehicle speed prediction method and system and a vehicle-mounted terminal. The method comprises the following steps of acquiring road condition information and vehicleinformation of a tested vehicle on a continuous downhill road section; obtaining the initial brake drum temperature, the initial coordinate position and the emergency braking frequency of the testedvehicle running at the preset distance interval; according to the road condition information, the vehicle information, the initial coordinate position, the initial brake drum temperature and the emergency braking frequency, calculating second brake drum temperature after the preset distance interval is completed; acquiring the second coordinate position of the vehicle after the vehicle completes the preset distance interval; calculating the safety speed of the tested vehicle according to the road condition information, the vehicle information, the second brake drum temperature, the second coordinate position and the preset temperature threshold; calculating the brake drum temperature of the tested vehicle after each preset distance interval, then calculating the safety speed of the testedvehicle through the follow-up road section according to the preset temperature threshold value, and enabling the tested vehicle to safely and efficiently pass the continuous downhill road section.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a safe vehicle speed prediction method, system and vehicle-mounted terminal. Background technique [0002] The continuous downhill section of the highway is very prone to serious traffic accidents involving trucks. According to survey data statistics, accidents of out-of-control trucks are very likely to cause mass death and serious injury. Due to the unreasonable selection of the speed of the truck, the temperature of the brake drum of the truck reached the safe limit temperature during the continuous downhill process, which caused the brakes to fail, and finally the vehicle lost control and caused an accident. The core problem of determining the safe speed of a truck on a continuous downhill section of the highway is the prediction of the brake drum temperature of the truck. In terms of brake drum temperature prediction, single-vehicle tests are usually use...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a safe vehicle speed prediction method, system and vehicle-mounted terminal to solve the problem that the prior art cannot make the load-carrying vehicle pass through different continuous downhill road sections safely and efficiently

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