A Technical Study on the Safety Protection for Virtual Coupling Operation of Autonomous-rail Rapid Trams
In order to take into account the high efficiency and safety of the virtual coupling composition operation of the autonomous-rail rapid trams,the article analyzes the control method of the tracking distance between the CACC vehicle and the virtual coupling of the train.Vehicle traction/braking characteristics,vehicle-vehicle communication delay,controller response time,relative error of speed measurement and other factors are taken into account,and the mathematical model of safe traveling speed and minimum safe tracking distance for the coupling composition is deduced in detail;combined with the typical parameters,the quantitative simulation calculation and analysis are carried out,and the key data and optimization measures of operation safety protection are obtained,which realize that the tracking distance of coupling composition can be guaranteed to be below 10 m in the speed range of 0～60 km/h.This can effectively prevent the queue-jumping of social vehicles,further enhance the line capacity under the premise of guaranteeing the safety of coupling composition,and provide a solid and reliable theoretical basis for the engineering system design and safe operation control of the virtual coupling of autonomous-rail rapid trams.
万方数据
维普
