高速动车组牵引制动仿真系统中的精准停车算法

为了让高速动车组在自动驾驶的情况下能够精准停车,通过使用中国铁道科学研究院集团有限公司机车车辆研究所开发的《高速动车组仿真系统》软件,模拟动车组“逆向行驶”,生成控制正向行驶的“公里标-限速”曲线。精准停车算法使用了仿真系统提供的高速动车组配置参数、轨道数据和模拟驾驶员的参数。由于“逆向行驶”和正向仿真使用的动车组减速特性参数相同,因此可以实现精准减速和停车。使用本算法,高速动车组在模拟自动驾驶的过程中,除了实现车站的精准停车之外,还实现了提前减速防超速,防止下坡惰行过分相出现超速。通过软件仿真,证明该算法切实可靠。

Accurate parking algorithm for high-speed EMU traction and braking simulation system

In order to make high-speed EMU accurately parking in case of automatic driving, the software of high-speed EMU traction and braking simulation system was used to simulate the EMU "reverse drive", generate the controlling moving forward "kilometer mark- speed limit" (KM-SL) curve. The simulation system was developed by the Locomotive & Car Research Institute in China Academy of Railway Sciences Corporation Limited. The high speed EMU configuration parameters, track data and driver simulation parameters of the simulation system were used by the accurate parking algorithm. Because that the reverse driving used the same decelerate characteristics parameters as the forward driving, the high speed EMU could be decelerated and parked accurately. Additionally, the accurate parking algorithm also could be used to avoid over speeding when the railway speed-limit decreased, or the EMU had to coast downhill in the split-phase of the contact networks. By the simulation, the algorithm was proved reliable, and the automatic operation system could be used to park accurately and prevent the over speed.