Electronic and electrical architecture variant management method and device of vehicle

The invention belongs to the technical field of automobile electronic and electrical architecture design, and particularly relates to a vehicle electronic and electrical architecture variant management method and device. According to the method, after the PREEvision architecture model is developed, firstly, according to the function configuration of the variable vehicle type, the vehicle type function is automatically selected by utilizing the constructed relation rule, so that the problems of low efficiency and error proneness of manual function selection are solved; searching the associated architecture drawing according to the selected function; then the system automatically identifies and calls effective components and associated components associated with the effective components in the architecture drawings, and marks the effective components and the associated components; at the moment, all components contained in the vehicle model are marked, the activation modification scheme is operated, the marked