Over deze norm
ISO/PAS 27145 is intended to become the single communication standard for access to OBD-related information. To allow for a smooth migration from the existing communication standards to this future worldwide standardized communication standard, the initial communication concept will be based on CAN. In a second step, ISO/PAS 27145 will be extended to define the world-wide harmonized OBD communication standard based on existing industry communications standards (e.g. Internet Protocol) over Ethernet. Due to the usage of standard network layer protocols, future extensions to optional physical layers (e.g. wireless) are possible. This part of ISO/PAS 27145 specifies the implementation of a subset of unified diagnostic services (UDS) as specified in ISO 14229-1. The diagnostic services are used to communicate all diagnostic data as defined in ISO/PAS 27145-2. The subset of unified diagnostic services derives from the requirements stated in the WWH-OBD GTR (World Wide Harmonised Global Technical Regulations). The common message set defined in this part is independent of the underlying Transport, Network, Data Link and Physical Layer. This document does not specify any requirements for the in-vehicle network architecture. This part of ISO/PAS 27145 includes a superset of a modified version of ISO 14229-1. Several significant modifications are included in this part in order to support the data set of SAE J1939, ISO 15031-5 and ISO 15031-6: - ISO/PAS 27145-3 supports a 3-byte Unified Data Identifier format in all services which support a 2-byte data identifier format in the ISO 14229-1. - ISO/PAS 27145-3 supports a 4-byte Diagnostic Trouble Code format in all services which support a 3-byte Diagnostic Trouble Code format in the ISO 14229-1. - ISO/PAS 27145-3 supports a separation of BaseDTC number from a FailureTypeByte including the symptom of the Diagnostic Trouble Code. This part of ISO/PAS 27145 is designed to provide the basis of unified diagnostic services for future GTR modules provided by legislation.
|Nederlandse titel||Wegvoertuigen - Implementatie van WWH-OBD communicatie-eisen - Deel : Algemene termenlijst voor berichten|
|Engelse titel||Road vehicles - Implementation of WWH-OBD communication requirements - Part 3: Common message dictionary|