道路车辆.开放式诊断数据交换(ODX).第1部分:数据模型规范

[中文适用范围]： 本部分 ISO 22901 规定了使用一种新的行业标准诊断格式的概念，以便向诊断工具应用程序制造商提供诊断数据流信息，从而简化售后汽车服务行业的支持。开放式诊断数据交换（ODX）建模的诊断数据与 ISO 22900-2 和 ISO 22900-3 中规定的模块化车辆通信接口（MVCI）的软件要求兼容。ODX 建模的诊断数据将使 MVCI 设备能够与车辆电子控制单元（ECU）通信，并解释在外部测试设备与 ECU 之间交换的消息中包含的诊断数据。对于符合 ODX 的外部测试设备，无需进行软件编程即可将诊断数据转换为技术人员可读的信息并在测试仪上显示。ODX 规范包含描述车辆和物理 ECU 所有诊断数据的数据模型，例如诊断故障代码、数据参数、识别数据、输入/输出参数、ECU 配置（变体编码）数据和通信参数。ODX 使用统一建模语言（UML）图进行描述，数据交换格式使用可扩展标记语言（XML）。ODX 建模的诊断数据描述：ECU 诊断通信的协议规范；不同协议和数据链路层以及 ECU 软件的通信参数；ECU 编程数据（Flash）；相关车辆接口描述（连接器和引脚图）；ECU 网络诊断功能的功能描述；ECU 配置数据（变体编码）。本部分 ISO 22901 的目的是确保来自任何汽车制造商的诊断数据独立于任何测试设备制造商提供的测试硬件和协议软件。 [外文原描述]： ISO 22901-1:2008 specifies the concept of using a new industry standard diagnostic format to make diagnostic data stream information available to diagnostic tool application manufacturers, in order to simplify the support of the aftermarket automotive service industry. The Open Diagnostic Data Exchange (ODX) modelled diagnostic data are compatible with the software requirements of the Modular Vehicle Communication Interface (MVCI), as specified in ISO 22900-2 and ISO 22900-3. The ODX modelled diagnostic data will enable an MVCI device to communicate with the vehicle Electronic Control Unit(s) (ECU) and interpret the diagnostic data contained in the messages exchanged between the external test equipment and the ECU(s). For ODX compliant external test equipment, no software programming is necessary to convert diagnostic data into technician readable information to be displayed by the tester. The ODX specification contains the data model to describe all diagnostic data of a vehicle and physical ECU, e.g. diagnostic trouble codes, data parameters, identification data, input/output parameters, ECU configuration (variant coding) data and communication parameters. ODX is described in Unified Modelling Language (UML) diagrams and the data exchange format uses Extensible Mark-up Language (XML). The ODX modelled diagnostic data describe: protocol specification for diagnostic communication of ECUs; communication parameters for different protocols and data link layers and for ECU software; ECU programming data (Flash); related vehicle interface description (connectors and pinout); functional description of diagnostic capabilities of a network of ECUs; ECU configuration data (variant coding). The purpose of ISO 22901-1:2008 is to ensure that diagnostic data from any vehicle manufacturer is independent of the testing hardware and protocol software supplied by any test equipment manufacturer.