Approach for Network Layer Test in Vehicle Unified Diagnositc Service Diagnostic Protocol Stack

Abstract:

The paper presents an approach for network layer test, which is important during the development of unified diagnostic service(UDS) diagnostic stack. The upper tester in PC was connected to the lower tester, which carried the protocol stack under test, by a networkdesign tool called AutoCAN to build a test network. After analyzing the characteristics of network parameters and the demands of the device under test, a test case set was designed with the parameters classified method. Then the scripts were programmed and AutoCAN simulated the progress of all the designed communications. By monitoring every record of CAN frames transmission, it is clear to decide if this test meets the requirements of the specification. This method can accomplish the networklayer functional tests and find whether it works correctly based on the relevant international standards.

Key words:unified diagnostic service; network layer; functional test; parameters classified method