本文件适用于道路车辆，其中电子车辆接口用于执行作为定期技术检查（ePTI）一部分的测试方法。 本文件描述了使用案例并规定了技术要求，以便在通过电子接口进行定期技术检查期间支持ePTI相关车辆安全系统检查。本文件引用了ISO？14229系列，在控制器局域网（DoCAN）和互联网协议（DoIP）诊断通信上实现的统一诊断服务，并提供所需的数据定义。 诊断服务的技术要求和排放相关系统的数据定义在其他国际标准中有规定，例如，ISO？15031和ISO？27145.未来可以考虑其他环境系统的ePTI用例和技术要求。 本文件定义: —？描述通过诊断链路连接器与ePTI相关的车辆通信功能的所有要求，例如: 1)？ePTI数据链路的发现； 2)？ePTI相关系统的发现； 3)？查询ePTI相关系统的信息，包括软件标识、软件完整性、当前和/或存储的值； 4)？查询ePTI相关系统的错误信息； 5)？激活ePTI相关系统的致动器或例程； —？关于单个车辆通信功能的用例，例如，查询识别信息、命令功能测试方法。 本文件没有直接规定ePTI的任何类型的测试方法或通过/失败标准。PTI期间的相关系统，但提供可能支持PTI测试方法的数据。 文件规定: —？术语； —？在ePTI外部测试设备和车辆的ePTI相关系统之间建立通信； —？在ePTI外部测试设备和车辆之间使用基于凭证的认证和授权机制； —？防止篡改定义的ePTI方法； —？ePTI相关用例的定义: —？ePTI外部测试设备发现ISO中规定的可用数据标识符？20730-3; —？ePTI外部测试设备查询ePTI相关系统的信息，包括软件编号、软件完整性信息、当前和/或存储的值、自检完成状态、系统状态和错误信息（例如。g.DTC和/或DID信息）； —？ePTI外部测试设备激活ePTI相关系统的执行器或例程； —？ePTI相关技术要求的定义； —？ePTI外部测试设备最低要求。 本文件不包括: —？执行PTI检查的过程定义； —？非机载数据提供的流程和数据定义； —？标准化数据交换格式； —？根据车辆制造商规范对车辆安全系统进行确认和验证。

This document is applicable to road vehicles, where the electronic vehicle interface is used to perform a test method that is part of a periodic technical inspection (ePTI). This document describes use cases and specifies technical requirements in order to support the ePTI-relevant vehicle safety system(s) checks during the periodic technical inspection via the electronic interface. This document references the ISO？14229 series, the unified diagnostic services implemented on diagnostic communication over controller area network (DoCAN) and the Internet protocol (DoIP) along with the required provision of data definitions. The technical requirements of diagnostic services and data definitions of emissions-related systems are specified in other International Standards, for example, ISO？15031 and ISO？27145. Other environmental systems' ePTI use cases and technical requirements can be considered in the future. This document defines: —？all requirements describing the vehicle-communication functionality via the diagnostic link connector related to ePTI, for example:

1)？discovery of the ePTI data link;

2)？discovery of the ePTI-relevant systems;

3)？query of ePTI-relevant systems’ information, including software identification, software integrity, current and/or stored values;

4)？query of ePTI-relevant systems’ error information;

5)？activation of ePTI-relevant systems’ actuators or routines; —？the use cases about the individual vehicle communication functionality, for example, query identification information, command functional test method. This document does not directly specify any type of test method or pass/fail criteria of the ePTI-relevant system during a PTI, but provides data, which may support PTI test methods. The document specifies: —？terminology; —？communication establishment between the ePTI external test equipment and the vehicle's ePTI-relevant systems; —？usage of a credentials-based authentication and authorisation mechanism between the ePTI external test equipment and the vehicle; —？protection against tampering of the defined ePTI methods; —？definition of ePTI-relevant use cases:

—？ePTI external test equipment discovers available data identifier as specified in ISO？20730-3;

—？ePTI external test equipment queries the ePTI-relevant system’s information, including software numbers, software integrity information, current and/or stored values, self-test completion status, system status, and error information (e.g. DTC and/or DID information);

—？ePTI external test equipment activates the ePTI-relevant system’s actuators or routines; —？definition of ePTI-relevant technical requirements; —？ePTI external test equipment minimum requirements. This document excludes: —？process definitions for performing the PTI check; —？process and data definitions for off-board data provision; —？standardised data exchange formats; —？validation and verification of vehicle safety systems according to vehicle manufacturer specifications.