道路车辆 全球统一车载诊断（WWH-OBD）通信要求的实施 第 6 部分：外部测试设备

[中文适用范围]： 本文件将外部测试设备的要求定义为： ——在配备 WWH-OBD 的车辆和外部测试设备之间建立通信的方法； ——一组诊断服务，包括寻址方法，由外部测试设备提供，以便执行 ISO 27145-3 中定义的服务。 本文档描述了外部测试设备的最低能力或功能。 附加功能，例如非WWH-OBD协议或维修和维护信息的检索，可以根据测试设备制造商的需要集成到外部测试设备中。 外部测试设备设计人员确保此类能力或功能不会对连接到设备的配备 WWH-OBD 的车辆或设备本身产生不利影响。 当外部测试设备实现 ISO 27145-3 未涵盖的功能时，该功能与本文档中定义的时序要求无关。 [外文原描述]： This document defines the requirements for the external test equipment as: — a means of establishing communications between a WWH-OBD-equipped vehicle and external test equipment; — a set of diagnostic services, including addressing methods, to be provided by the external test equipment in order to exercise the services defined in ISO 27145 ‑ 3 . This document describes the minimum capabilities or functions in the external test equipment. Additional functionalities, for example, non WWH-OBD protocols or retrieval of repair and maintenance information, can be integrated into the external test equipment according to the test equipment manufacturer needs. The external test equipment designer ensures that no such capability or function can adversely affect either a WWH-OBD-equipped vehicle connected to the equipment, or the equipment itself. When the external test equipment implements functionality, which is not covered by ISO 27145 ‑ 3 , this functionality is not linked to the timing requirements defined in this document.