标准编号：ISO 15765-4:2011
中文名称：道路车辆 控制器局域网络的诊断通信（DoCAN） 第4部分：与排放相关系统的要求
英文名称：Road vehicles — Diagnostic communication over Controller Area Network (DoCAN) — Part 4: Requirements for emissions-related systems
发布日期：2011-02
标准范围
This part of ISO 15765 specifies requirements for controller area networks (CAN) where one or morecontrollers comply with on-board diagnostics (OBD) or world-wide harmonized on-board diagnostics(WWH-OBD) regulations. The network presumes the use of an external test equipment for inspection andrepair diagnostics, as defined by the regulations. The CAN network requirements for the vehicle and theexternal test equipment are based on the specifications of ISO 15765-2, ISO 11898-1 and ISO 11898-2.This part of ISO 15765 places restrictions on those International Standards for the fulfilment of the regulations.It does not specify in-vehicle CAN bus architecture, but seeks to ensure that the vehicle's regulated CANcommunications comply with external test equipment requirements.This part of ISO 15765 defines the requirements to successfully establish, maintain and terminatecommunication with a vehicle that implements the requirements of the OBD/WWH-OBD regulations.Plug-and-play communication capabilities among vehicles and test equipment are defined to assure theinteroperation of external test equipment and vehicles. This part of ISO 15765 details all of the OSI layerrequirements to achieve this goal.This part of ISO 15765 is the entry point for DoCAN (Diagnostic communication over CAN). Based on theresults of the initialization, the external test equipment determines which protocol and diagnostic services aresupported by the vehicle's emissions-related system:—legislated OBD: ISO 15031 (all parts),—legislated WWH-OBD: ISO 27145 (all parts).
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