Diagnostic message routing method and bus routing equipment thereof

Abstract

The embodiment of the invention provides a diagnostic message routing method and a bus routing device thereof. A gateway receives a diagnostic request sent by a diagnostic instrument through an OBD-Ethernet diagnostic port; the gateway analyzes the diagnosis request to DoIP layer information, and maps a target logic address in the diagnosis request into a diagnosis request ID of a target ECU; the gateway repackages the mapped diagnosis request message; the gateway sends the repackaged diagnosis request message to a bus where the target ECU is located according to the diagnosis request ID of the target ECU; the gateway receives a diagnosis response message sent by the CAN / CANFD node in the vehicle; the diagnosis response message ID corresponds to the diagnosis request message ID; the gateway extracts the ID of the diagnosis response message, and maps the ID of the diagnosis response message into the DoIP logic address of the internal ECU; the gateway repackages the mapped diagnosis response message; the destination logic address of the re-packaged diagnosis response message is the diagnosis instrument logic address; and the gateway sends the diagnosis response message to the OBD-Ethernet diagnosis port according to the logic address of the diagnosis instrument.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a diagnostic message routing method and a bus routing device thereof. Background technique [0002] The gateway controller is the core component in the electronic and electrical architecture of the vehicle. As the data exchange hub of the vehicle network, the gateway controller can route CAN, CAN FD, Ethernet and other network data in different networks. A gateway is a device used to provide network compatibility functions such as protocol conversion and data exchange when collecting networks with different architectures or protocols. It can also be commonly called a connector between networks, a protocol converter, and a data link. translator. Gateways can be used for both wide-area interconnection and local-area interconnection. They act as computer systems or devices that perform heavy duty conversions, and can be used between two systems that use different protocols, data, ...

AI Technical Summary

Problems solved by technology

[0004] However, most of the original bus routing controllers use CAN, LIN and other transmission methods. Therefore, it is necessary to design a bus routing device that can meet the current transmission requirements.

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