物理层,500 Kbps

[中文适用范围]： 本文档定义的物理层具有比为 SAE J1939 定义的其他物理层更高的带宽容量。采用更新的收发器技术来最大限度地减少 EMI。本 SAE 推荐做法适用于轻型和重型公路或越野车辆以及使用车辆衍生组件（例如发电机组）的适当固定应用。感兴趣的车辆包括但不限于：公路和非公路卡车及其拖车；建筑设备;以及农业设备和工具。实现强大的 CAN 网络需要进行许多权衡，这些权衡都会影响网络布局和 ECU 设计。本文档提出了一个标准，不同来源的 ECU、工具和车辆网络可以通过该标准兼容。该文件旨在独立，但其方法借鉴了许多现有标准和论文。 [外文原描述]： This document defines a physical layer having a higher bandwidth capacity than other physical layers defined for SAE J1939. Newer transceiver technologies are utilized to minimize EMI.CAN controllers are now available which support the flexible data rate frame format. These controllers, when used on SAE J1939-14 networks, must be restricted to use only the classical frame format compliant to ISO 11898-1:2015.This SAE Recommended Practice is intended for light- and heavy-duty vehicles on- or off-road, as well as appropriate stationary applications which use vehicle derived components (e.g., generator sets). Vehicles of interest include, but are not limited to, on- and off-highway trucks and their trailers, construction equipment, and agricultural equipment and implements.Cross Reference: ISO11898-2,ISO11898-5,J1128_201210,J1128_201310,J1939-11,J1939-13,J1939/11_201209,J1939/13_201610,J1939/15_201405,J2030_201506