Diagnostics reimagined: How Eclipse OpenSOVD powers open collaboration and standard evolution

This talk, presented by Thilo Schmitt and Alexander Mohr from Mercedes-Benz Tech Innovation, focuses on the implementation of service-oriented vehicle diagnostics in the software-defined vehicle (SDV) era using open source architecture. The session highlights how Eclipse OpenSOVD modernizes vehicle diagnostics through HTTP-based, RESTful interfaces while replacing legacy UDS-based communication patterns. The speakers delve into the design of the Classic Diagnostics Adapter (CDA), which facilitates interoperability by translating between SOVD requests and UDS-based electronic control units (ECUs).

They discuss the system architecture that enables diagnostic testers to communicate with SOVD servers, the integration of Rust-based services and DLT logging, as well as the use of YAML for ECU descriptions. The implementation optimizes performance by replacing protobuf with flatbuffers for diagnostic data storage, achieving significant reductions in memory usage and enhancements in CPU performance. Ultimately, the talk emphasizes the importance of open collaboration in driving standard evolution and community contributions that enhance implementation decisions and compliance.