An emergency supplementary braking system and method for a pure electric wide-body dumper comprises a main circuit and a control circuit, the main circuit comprises a power supply system, a motor controller and a permanent magnet synchronous traction motor, and the power supply system drives the permanent magnet synchronous traction motor through the motor controller. The main circuit further comprises brake resistors R1, R2 and R3 which are arranged between the motor controller and the three-phase wire of the permanent magnet synchronous traction motor. The problem of insufficient mechanical braking force is solved, and the emergency braking capacity is improved; the energy loss caused by additional emergency braking in the driving process is reduced; braking reliability is improved, and the problem that the emergency braking function cannot be input under the condition that a motor controller is damaged or the whole vehicle is powered off is solved.
一种纯电动宽体自卸车应急补充制动系统及方法,包括主电路和控制电路,所述主电路包括动力电源系统、电机控制器和永磁同步牵引电动机,所述动力电源系统通过电机控制器驱动永磁同步牵引电动机,所述主电路还包括设在电机控制器与永磁同步牵引电动机三相接线之间的制动电阻R1、R2、R3。补充机械制动力不足问题,提升应急制动能力;降低行驶过程中应附加应急制动而造成的能量损失;提升制动可靠性,避免因电机控制器损坏或整车断电下应急制动功能无法投入问题。
Emergency supplementary braking system and method for pure electric wide-body dumper
一种纯电动宽体自卸车应急补充制动系统及方法
2023-03-10
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |