Diagnostik-, underhålls- och provningsutrustningar

Kommittébeteckning: SIS/TK 240 (El- och elektronikutrustning för vägfordon)
Källa: ISO
Svarsdatum: den 2 apr 2019
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This document specifies the implementation of a common set of unified diagnostic services (UDS) on clock extension peripheral interface networks in road vehicles. The UDSonCXPI diagnostics defines methods to implement diagnostic data transfer between a client and the CXPI slave nodes via the CXPI master node. 

This document specifies support of three different diagnostic classes for CXPI slave nodes.

This document references part 1 and part 2 of ISO 14229 and specifies implementation requirements of the UDSonCXPI communication protocol for mainly HMI (Human Machine Interface), but not limited to, electric/electronic systems of road vehicles. UDSonCXPI defines how to implement the diagnostic data transfer between a client and CXPI slave nodes via CXPI master node.

NOTE  UDSonCXPI does not specify any requirement for the in-vehicle CXPI bus architecture.

This document makes reference to information contained in

 — ISO 14229-1, Road vehicles — Unified diagnostic services (UDS) — Part 1: Application layer;

— ISO 14229-2, Road vehicles — Unified diagnostic services (UDS) — Part 2: Session layer services;

— ISO 20794 (all parts), Road vehicles — Clock eXtension Peripheral Interface (CXPI);

This document does not include any redundant information of the above mentioned documents.

It focuses on

—  additional requirements specific to the implementation of UDSonCXPI network, and

—  specific restrictions in the implementation of UDSonCXPI network.