本文件将适用于电动马达的最常见应用，用于激活乘用车（轿车和轻型卡车）中使用的全轮驱动（AWD）和四轮驱动（4WD）断开系统。该标准将提供一致的定义、术语、测试和报告方法。

This document will apply to the most common applications of electric motors, used for activating all-wheel drive (AWD) and four-wheel drive (4WD) disconnect systems as used in passenger (car and light truck) vehicles. The standard will provide consistent definition, terminology, tests, and reporting methods.