The invention provides a vehicle-mounted power supply system and an electric automobile, the vehicle-mounted power supply system comprises a bidirectional vehicle-mounted charger, a direct current converter, a first switch group and a controller, a first connecting end of the bidirectional vehicle-mounted charger is connected with a low-voltage load group and an output end of the direct current converter through the first switch group, and a second connecting end of the bidirectional vehicle-mounted charger is connected with the controller; and the second connecting end of the bidirectional vehicle-mounted charger is connected with the power battery and the input end of the direct-current converter. Wherein the controller is used for controlling the first switch group to be switched on under the condition that the direct-current converter breaks down, so that the power battery supplies power to the low-voltage load group through the bidirectional vehicle-mounted charger, the power supply reliability of the low-voltage load group is improved, and the cost is lower.
本申请提供了一种车载供电系统及电动汽车,车载供电系统包括双向车载充电机、直流变换器、第一开关组和控制器,其中,双向车载充电机的第一连接端通过第一开关组连接低压负载组和直流变换器的输出端,双向车载充电机的第二连接端连接动力电池和直流变换器的输入端。其中,控制器用于在直流变换器出现故障的情况下控制第一开关组导通,以使动力电池通过双向车载充电机为低压负载组供电,从而提高了低压负载组的供电可靠性,成本更低。
Vehicle-mounted power supply system and electric vehicle
车载供电系统及电动汽车
2022-12-20
Patent
Electronic Resource
Chinese
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