关键词: UDS；故障码；诊断仪；生产管控；EOL；诊断工具

Abstract: With the continuous development of the automotive industry, the management and control of fault codes before vehicle dispatch during the production phase have become increasingly stringent. How to meet the production cycle time while achieving precise fault code control is a key focus of diagnostic research. To address the pain point that the existing fault code reading and clearing tools used by the vehicle logistics department of a manufacturing base cannot meet the production cycle requirement of 1 min before vehicle dispatch, this paper carries out the design and implementation of a fault code production management and control tool based on unified diagnostic services (UDS) communication. The solution design is carried out through the tool's interface, the software and hardware solutions of the tool are designed, and controller end-of-line (EOL) verification is conducted through simulation and real-vehicle testing. The research results show that the fault code production management and control tool can achieve the functional verification of clearing and reading vehicle fault codes, reducing the time at the original reading and clearing station from 3 min to within 1 min, thereby meeting the production cycle requirement. The annual costsaving benefit for a single base reaches 1.92 million yuan, providing a reference for research in related fields.

Key words: UDS; fault code; diagnostic instrument; production management and control; EOL; diagnostic tool