The invention discloses an electrical soft braking method for a subway locomotive, which belongs to the technical field of subways, and comprises the following steps: a traction controller of the subway locomotive sends a braking instruction, a driving motor interrupts output, the driving motor rotates reversely, kinetic energy is converted into electric energy, and the electric energy is supplied to the traction controller of the subway locomotive; the electric energy is transmitted to a power grid through a traction inversion system; when the voltage of the power grid reaches the upper limit, heat is generated through the brake resistor to consume electric energy, and the speed of the subway locomotive is regulated; the running speed of the subway locomotive is determined through a speed sensor, an air compressor is started to supply air into an air cylinder, and a brake shoe is closely attached to a wheel pair to make a subway slide at a reduced speed; continuously calculating the real-time speed of the subway and the alignment distance between the subway and the platform, and adjusting the pressure of the air cylinder according to the vehicle speed; by monitoring the vehicle speed and the alignment distance in real time and adjusting the pressure of the brake shoe, it is guaranteed that a locomotive can be braked according to needs, and stable braking of the locomotive is guaranteed.
本发明公开了一种地铁机车电气软制动方法,属于地铁技术领域,所述地铁机车电气软制动方法包括如下步骤:地铁机车牵引控制器发出制动指令,驱动电机中断输出,且驱动电机反转,将动能转化为电能,并通过牵引逆变系统将电能输送至电网中;在电网的电压达到上限时,通过制动电阻产生热量消耗电能,对地铁机车进行调速;通过速度传感器对地铁机车的运行速度进行确定,并启动空压机向风缸内部送风,闸瓦密切贴合轮对使得地铁降速滑行;持续计算地铁实时速度和与站台的对位距离,结合车速对风缸压力进行调整;本发明通过实时监测车速和对位距离并对闸瓦的压力进行调整,保证机车可按需求进行制动,保证车辆制动稳定。
Subway locomotive electrical soft braking method
一种地铁机车电气软制动方法
2024-02-09
Patent
Elektronische Ressource
Chinesisch
Braking kinetic energy conversion device of subway locomotive
Europäisches Patentamt | 2015
|Engineering Index Backfile | 1928
|Engineering Index Backfile | 1928
|Engineering Index Backfile | 1922
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