The invention discloses an electric vehicle and a power distribution unit, a power supply system and a control method thereof. The power distribution unit comprises a control unit, a positive direct-current bus end, a negative direct-current bus end, a first power supply positive input end, a first power supply negative input end, a second power supply positive input end, a second power supply negative input end, a first controllable switch and a second controllable switch, wherein the positive direct-current bus end is electrically connected with the first power supply positive input end and the second power supply positive input end, and the negative direct-current bus end is electrically connected with the first power supply negative input end and the second power supply negative input end; the first controllable switch is electrically connected between the positive direct-current bus end and the first power supply positive input end; and the second controllable switch is electrically connected between the positive direct-current bus end and the second power supply positive input end. By adopting a direct-current side double-circuit power supply and common-bus power supply mode, the requirement of a heavy-load vehicle for the battery capacity is reduced, meanwhile, the charging frequency of a battery is reduced, and electric popularization of the heavy-load vehicle is facilitated.
本申请公开一种电动车及其配电单元、供电系统、控制方法,所述配电单元包括控制单元、正直流母线端、负直流母线端、第一电源正输入端、第一电源负输入端、第二电源正输入端、第二电源负输入端、第一可控开关以及第二可控开关;正直流母线端与第一电源正输入端以及第二电源正输入端电连接,负直流母线端与第一电源负输入端以及第二电源负输入端电连接;第一可控开关电连接在正直流母线端与第一电源正输入端之间;第二可控开关电连接在正直流母线端与第二电源正输入端之间。本申请通过采用直流侧双路供电且共母线供电方式,降低了重载车辆对电池容量的要求,同时减小了电池的充电频率,利于重载车辆的电动化推广。
Electric vehicle and power distribution unit, power supply system and control method thereof
电动车及其配电单元、供电系统、控制方法
01.02.2022
Patent
Elektronische Ressource
Chinesisch
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