商用车电能输出接口

[中文适用范围]： 本SAE推荐实践（RP）涵盖了原厂设备制造商（OEM）商用卡车底盘电气系统与电气驱动的车身附件设备之间高压直流（DC）传导式电力传输的一般指导原则。OEM底盘可以配备电动汽车（EV）驱动系统，也可以是混合动力底盘（有或没有传统机械动力输出装置（PTO）的连接）。底盘可以包括使用续航扩展系统的配置。电压等级定义为高于60 VDC，并包括典型EV底盘电压范围，最高可达1500 VDC，具体取决于所选组件的能力。该标准还包括对连接系统、车身制造商通信模式以及建议的操作模式的有限功能要求。电动动力输出（ePTO）物理电气连接的适用范围将限于接口概念、空间占用和维护功能的推荐，而连接器的具体特征和设计将保留供未来定义。虽然此处定义的许多要素（包括附录）可能适用，但该标准内容不足以定义用于连接第8类牵引车与半挂车或任何类别卡车与挂车的连接器，这些连接器将使用下文定义的功能电压。本标准不包括高频次连接或其他应用场景，这些场景中ePTO连接需在每日使用或年度维护检查之外进行分离。本文件不涵盖ePTO连接上的双向电力传输需求，但这些需求可以在未来ePTO应用的定义中加以考虑。这些应用范围的限制已由任务组审议，并提交供未来开发。 [外文原描述]： This SAE Recommended Practice (RP) covers the general guidelines for conductive power transfer of high voltage Direct Current (DC) between OEM commercial truck chassis electrical systems and electrically powered body accessory equipment. The OEM chassis can have an EV drive train or be a hybrid chassis with or without a connection for traditional mechanical Power Take-Off (PTO). The chassis can include use of range extension systems. Voltage levels are defined as greater than 60 VDC and include typical EV chassis voltage ranges up to and including 1500 VDC based on selected component capabilities. It also covers limited functional requirements for the connection systems, body builder communication modes, and suggested operational modes. The scope of the Electric Power Take-Off (ePTO) physical electrical connection will be limited to a recommendation of the interface concept, space claim, and service features and will leave connector features and design open for future definition. Although many of the elements defined here may apply, including addendum, the scope does not include sufficient content to define a connector for linking a Class 8 tractor to a semi-trailer or truck to trailer in any class using functional voltages as defined below. The scope does not include high-cycle connections or other applications where the connections to ePTO are separated daily or outside of annual maintenance inspections. Requirements for bidirectional power flow on the ePTO connection are out of scope in this document but could be accommodated within the future definition of ePTO applications. These application scope limits were reviewed by the Task Force and tabled for future development.