power reverse gear

It can power transmission, realize shifting and larger torque converter area, which also has reverse and empty gear shift, large shifting ratio, comfortable operation and small volume.

行星齿轮机构速比大、体积小、操纵容易、同时获得空档和倒档，加大变速器的变矩范围，可以实现变速和动力传动，因此在AT上被广泛的应用。

On the purpose of improving efficiency of continuously variable transmission with reflux power, efficiency of previous system under low gear and reverse gear have been analyzed to optimize its structure based on analysis of speed modulation characteristic and transmission efficiency of transmission system.

在回流式无级自动变速传动系统调速特性和传动效率分析的基础上，以提高效率为出发点，通过对原有系统低速档、倒档工况下的效率分析，并对原有结构进行了优化。