The invention provides an electric appliance load power supply system and a power supply method of a 48V micro-hybrid automobile, and belongs to the field of hybrid electric vehicle control. The electric appliance load power supply system comprises an HCU, a DCDC voltage converter, a 48VBSG motor, a 48V battery, a 12V storage battery and a 12V load. The HCU is connected with the DCDC voltage converter, and the DCDC voltage converter is connected between the 48V battery and the 12V storage battery; the 48V battery is electrically connected with the BSG motor, and the 12V storage battery is electrically connected with the 12V load; and the HCU is used for controlling the output power of the 12V end of the DCDC voltage converter to be the rated power of the DCDC voltage converter when it is determined that the vehicle is in the acceleration state. By adopting the electric appliance load power supply system, stable electric energy can be provided for the 12V storage battery and the 12V load, and the balance of power supply and demand of the whole vehicle is ensured.
本公开提供了一种48V微混汽车的电器负载供电系统及供电方法,属于混合动力汽车控制领域。电器负载供电系统包括HCU、DCDC电压转换器、48VBSG电机、48V电池、12V蓄电池和12V负载;HCU与DCDC电压转换器连接,DCDC电压转换器连接在48V电池和12V蓄电池之间;48V电池与BSG电机电连接,12V蓄电池与12V负载电连接;HCU,用于当确定车辆处于加速状态时,控制DCDC电压转换器的12V端的输出功率为DCDC电压转换器的额定功率。采用该电器负载供电系统可以为12V蓄电池和12V负载提供稳定的电能,保证整车用电供需平衡。
Electric appliance load power supply system and power supply method of 48V micro-hybrid automobile
48V微混汽车的电器负载供电系统及供电方法
2021-11-23
Patent
Elektronische Ressource
Chinesisch
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