Vehicle storage battery power supply control method and device and power supply system

The invention relates to the technical field of whole vehicle control, in particular to a whole vehicle storage battery power supply control method and device and a power supply system, and the power supply system comprises a storage battery which is used for providing a power supply after the whole vehicle is powered off; the display instrument is connected with the storage battery through the fuse box and used for displaying the state information of the whole vehicle; the fuse box comprises a fuse access and a relay access which are connected in parallel, and the relay access is connected with a display instrument. And the vehicle body domain controller is connected with the fuse access and the relay access and controls the relay to be disconnected when instrument display is not needed, so that the dark current of the whole vehicle is reduced, and vehicle feed caused by long-time parking of the whole vehicle is reduced. 本发明涉及整车控制技术领域，尤其涉及一种整车蓄电池供电控制方法、装置及供电系统，该供电系统，包括：蓄电池，用于在整车下电之后提供电源；显示仪表，通过保险丝盒连接蓄电池，用于显示