(5) Control system bus technology With the continuous increase in the technological content of automotive technology, it will inevitably cause a huge wiring system. Therefore, the bus structure needs to be connected to realize the real-time sharing of data and resource information, and the number of sensors can be reduced, thereby reducing the cost of the whole vehicle, and developing in the direction of system integration. At present, CAN controller area network (Controller Area Network) is mostly used for data communication protocol between the internal measurement and execution parts of the automobile.