关键词: 倒挡系统；同步功能；换挡手感；互换性

Abstract: The sliding sleeve structure is widely used in the middle reverse gear of medium and light truck manual transmission. When the structure changes gears, there is a speed difference, which will produce a big impact and cause the whole vehicle to move, thus affecting the whole vehicle using comfort. This paper provides a reverse gear system with synchronous function for medium and light truck transmission, which adds friction pairs without changing the size of external interface, and reduces the speed difference through its synchronous function, so as to achieve the improvement of shift feel. At the same time, this reverse gear system can replace the original system without the consideration of installation or mould. The system will in low development cost for its easy manufacturing technology and good interchangeability.

Key words: Reverse gear system; Synchronization function; Shift feel; Interchangeability