The invention provides a control method for keeping real-time change of a braking stage when a train is started, which comprises the following steps that: when the train is started, a braking control unit receives a traction command signal and does not receive a braking command signal; acquiring traction force, temperature, humidity and load information of the train, and calculating and keeping braking force in real time according to the acquired information; designing a main control strategy and a standby control strategy; and based on the calculated holding braking force and the real-time traction force, selecting to execute a main control strategy or a standby control strategy according to 110% of the maximum ramp sliding force of the current load. According to the main control strategy, when the traction force plus the holding braking force is larger than or equal to 110% of the ramp gliding force, the holding braking force starts to be reduced according to increase of the traction force, and when the traction force is larger than the ramp gliding force, braking is kept to be completely relieved. Backup logic is added, it is guaranteed that when a fault occurs and braking force cannot be adjusted and kept in real time, the braking force can be reduced and kept through a delay stage, and when the vehicle speed is larger than or equal to 2 km/h, the braking force is completely relieved.
本发明提供一种列车启动时保持制动阶段实时变化的控制方法,包括:列车启动时,刹车控制单元收到牵引的指令信号,且未收到制动的指令信号;获取列车牵引力、温度、湿度以及载重信息,并根据获取的信息实时计算保持制动力;设计主控制策略和备控制策略;基于计算的保持制动力和实时的牵引力,根据当前载荷110%最大坡道下滑力,选择执行主控制策略或备控制策略。本发明将主控制策略设置为牵引力加保持制动力大于等于坡道下滑力的110%时,保持制动力开始根据牵引力的增大而降低,当牵引力大于坡道下滑力时,保持制动完全缓解。并增加了备份逻辑,保证出现故障无法实时调整保持制动力时,可通过延时阶段降低保持制动力,当车速≥2km/h后,再完全缓解。
Control method for keeping real-time change of braking stage during train starting
一种列车启动时保持制动阶段实时变化的控制方法
2025-01-24
Patent
Electronic Resource
Chinese
Train braking control method and train braking control system
European Patent Office | 2021
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