Use the central information server and proxy server to process all communication information, and isolate the local control domain from the external environment to ensure the security and confidentiality of the system. Dividing the system into physical layer, information layer, and service layer makes the system have good scalability, and at the same time makes the system change less when used in different types of vehicles and has higher portability. In the future automotive electronic and electrical architecture, the central gateway will serve as an information bridge, exchange information and isolate the in-vehicle domain controller and peripheral communication sources, such as mobile networks, Bluetooth, WiFi, Ethernet, etc., and it will also act as the central The diagnostic interface is used for system vulnerability diagnosis. Domain controllers can be used as gateways between the central gateway and local smart sensors, actuators and ECUs, compiling and passing information between Ethernet and CAN or LIN. The central gateway will assume the primary responsibility for maintaining network security. The central gateway verifies messages from legitimate sources and protects authentication against spoofing, restricts network communications to pre-defined normal ranges, and restricts communication of abnormal or excessive messages to avoid compromising vehicle functionality. It also needs to block unsanctioned illegal messages and warn against invalid attempts. This can greatly improve the network security of the whole vehicle and significantly reduce the security function load of the vehicle domain controller.