Implementation of Automotive Unified Diagnostic Services Based on AUTOSAR

Abstract

The AUTOSAR (automotive open system architecture) standard served as a platform upon which future vehicle applications are implemented and serve to minimize the current barriers between functional domains. This paper used the NXP chip MPC5643L to implement the unified diagnostic services (UDS) based on AUTOSAR software architecture with the help of the AUTOSAR tools, systemdesk from dspace, EB (Elektrobit) troses from Elecktrobit, and the GreenHills Multi. The AUTOSAR modules we used in this paper include RTE (Runtime Environment), AUTOSAR OS (Operating System), DEM (Diagnostic Event Manager), DCM (diagnostic communication manager), SchM (basic software scheduler), EcuM (ECU state manager), CAN (control area network) communication stack and memory stack, and so on. The UDS service code is integrated into the AUTOSAR software architecture, it is tested by CANoe. The result shows it is effective and reliable.