The invention relates to a vehicle power distribution system. Comprising a power supply circuit used for outputting electric energy through a bus; a plurality of functional circuits, wherein each functional circuit comprises a functional component and a power-on switch; a plurality of pre-charging circuits, wherein each pre-charging circuit is correspondingly connected with one power-on switch in parallel; the control module is connected with the power supply circuit, the power-on switches of the functional circuits, the pre-charging circuits and the bus, and is used for controlling the conduction of a target pre-charging circuit connected with the power-on switch of the target functional circuit so as to pre-charge functional parts of the target functional circuit; and under the condition that the voltage difference between the voltage on the bus and the output voltage of the power supply circuit is smaller than a first threshold value, the target pre-charging circuit is controlled to be disconnected, and a power-on switch of the target function circuit is controlled to be closed, so that the target function circuit is powered on. The system can improve the starting speed and the starting success rate of the functional part, protects the functional part, and prolongs the service life of the power distribution system.
本申请涉及一种车辆配电系统。包括:电源电路,用于通过母线输出电能;多个功能电路,各功能电路包括功能部件和上电开关;多个预充电电路,各预充电电路分别对应与一上电开关并联;控制模块,分别与电源电路、各功能电路的上电开关、各预充电电路、母线连接,用于控制与目标功能电路的上电开关连接的目标预充电电路导通,以对目标功能电路的功能部件预充电,以及在母线上的电压与电源电路的输出电压的压差小于第一阈值的情况下,控制目标预充电电路断开并控制目标功能电路的上电开关闭合以使目标功能电路上电。本申请的系统可以提高功能部件的启动速度、启动成功率,并且保护功能部件,提高配电系统的使用寿命。
Vehicle power distribution system
车辆配电系统
2023-10-17
Patent
Electronic Resource
Chinese
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