Vehicle Diagnostic Socket Intermediary for Secure Data Bus Access

The patent introduces a diagnostic socket as an intermediary component between external diagnostic tools and onboard data buses. This socket includes material ports that physically disconnect from data bus connections, serving as a buffer zone. The switching means controlled by the gateway computer manage the connection state, allowing diagnostic access while preventing direct electromagnetic coupling between external tools and vehicle data buses, thus resolving the contradiction between ease of operation and electromagnetic compatibility.

The diagnostic socket serves as a protective intermediary between the external diagnostic port and the onboard data buses. The material ports of the socket can be physically disconnected from the data bus connections, creating a physical barrier against electrostatic discharge and foreign objects. During normal operation, the switching means establish electrical connections through the socket, maintaining data download speed while the socket structure itself provides passive protection against harmful factors during connection/disconnection operations.

The gateway computer is designed with multi-functionality, integrating authentication means, filtering means, and switching control capabilities within a single device. This universal approach allows the gateway to perform multiple functions (authentication, frame filtering, connection management) without requiring separate dedicated systems for each function. The switching means are controlled by the gateway computer which already performs gateway functions, thereby improving communication efficiency through direct access while minimizing additional system complexity by leveraging existing multi-functional components.