Platform-based power distribution By sorting out the definition of electrical interfaces and future system planning, the power distribution of the vehicle wiring harness can be further platform-based. Vehicle power distribution needs to first classify the power requirements of each electrical appliance, and then follow the relevant principles to carry out platform design. Main considerations: The heavy duty power supply and the comfort power supply do not share fuse protection. Heavy-duty parts refer to important electrical appliances that affect the driving safety of vehicles, mainly including ECU, electronic fuel injection system, anti-theft system, ESP, intelligent driving system, etc. The power supply of heavy-duty parts is not shared with the power supply of comfort appliances to ensure that the vehicle can run normally. Electrical appliances such as ECU and ESP that are easily interfered by other electrical appliances need to be independently set up insurance.