The invention discloses a storage battery electric engineering vehicle and a vehicle-mounted control method and device.The vehicle-mounted control method comprises vehicle-mounted discharging control, and the vehicle-mounted discharging control comprises the steps that when a vehicle is in a static state and a traction storage battery pack needs vehicle-mounted discharging, a pantograph is controlled to descend, a quick circuit breaker and a second contactor are controlled to be closed, and a second contactor is controlled to be closed; and the first contactor and the third contactor are disconnected, an electric braking module in the traction converter is controlled to be in a conducting state, and the traction storage battery pack is made to discharge a braking resistor. According to the invention, additional vehicle-mounted discharging equipment is not needed, and the existing vehicle-mounted charging equipment is added, so that the vehicle-mounted charging and discharging balancing function of the traction storage battery pack can be realized, the working difficulty and workload of maintenance of an engineering vehicle are greatly reduced, and the maintenance cost is saved.
本发明公开了一种蓄电池电力工程车及其车载控制方法与装置,所述车载控制方法包括车载放电控制,车载放电控制包括当车辆处于静止状态,且牵引蓄电池组需要车载放电时,控制受电弓降下,控制快速断路器和第二接触器闭合,第一接触器和第三接触器断开,控制牵引变流器中的电制动模块处于导通状态,使所述牵引蓄电池组对制动电阻放电。本发明无需配置额外的车载放电设备,再加上已有的车载充电设备,可以实现牵引蓄电池组车载充放电均衡功能,大大降低了工程车维护保养的工作难度和工作量,节省了维护成本。
Storage battery electric engineering vehicle and vehicle-mounted control method and device thereof
蓄电池电力工程车及其车载控制方法与装置
2022-11-29
Patent
Elektronische Ressource
Chinesisch
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