The type and working principle of 4WD which connected by cohesive shaft coupler are introduced, the effect of motor vehicle speed and tyre sliding rate on rotation difference of cohesive shaft coupler are described.

• 介绍了采用粘性联轴器连接的四轮驱动形式和工作原理，阐述了汽车速度、轮胎滑移率对粘性联轴器转速差的影响。