CTCS-4级列控系统关键技术研究

Research on key technologies of CTCS-4 level train control system

为了更安全高效地实现跨区域列车高速运行,并降低运维成本,提出了CTCS-4级列控系统将移除轨道电路等设备,移动闭塞列车追踪间隔数学模型,基于GPS差分技术的列车完整性检查,基于GNSS/INS的列车组合定位和LTE-R车地无线通信等关键技术.仿真结果表明:运用这些技术后,相比于既有的CTCS-3级列控系统,CTCS-4级列控系统在安全性、性能和成本等方面均有提升,运行更稳定和高效.

In order to achieve better safety and economy for cross regional high-speed train opera- tions, the CTCS-4 train control system has become the development trend. The paper introduces several CTCS-4 key technologies, including a moving block mathematical model, a train integrity check method based on GPS differential technology, a train positioning method based on GNSS/ INS in combination with LTE-R wireless communication, etc. Simulation results indicate that the CTCS-4 train control system with these technologies applied is more stable and efficient, compa- ring with the existing CTCS-3 train control system.