It seems that no industry is facing such contradictory demands as truck and bus manufacturers at the same time: on the one hand, it needs to improve the serial design and development of vehicles through standardization, and on the other hand, it needs to meet the personalized customization needs of customers as much as possible. Whether it is a production car or a custom car, a truck or a bus, the design requirements for the electrical system of a multi-configuration vehicle are extremely high. For example, the variables of each electrical system of the vehicle and their dependencies need to be precisely controlled and related to the detailed design of the entire vehicle, and ordinary drawing-oriented design tools cannot effectively handle such tasks.