一种功率分流的无级变速装置的理论和实验研究(一)

Theoretical and Experimental Study of A Power Split Continuously Variable Transmission System Part 1

过去许多年 ,特别在汽车工业 ,无级变速器已经取得了显著的进步。本文取得独创的功率分流 CVT( PS- CVT)装置的理论和实验的研究成果。本建议解决的主要优点是采用两各个工作分流用一个没有封闭循环的功率流来改善效率 ;获得单部件装置的运动特性。采用一个特殊的试验台架 ,在第一工作分流实验确定 PS- CVT装置的功率流和效率。用这些取得的结果和理论模型比较。在本文中 ,把功率和效率在所推荐的PS- CVT装置表明的诸优点和简单 CVT相比较。

Continuously variable transmissions(CVTs) have made notable progress, especially in the automotive industry, over the past years. In this paper the results of a theoretical and experimental study of an original power sptit CVT (PS\|CVT) system are obtained. The main advantage of the proposed solution is to improve the efficiency of the CVTs by means of a power flow without recirculation using two separate phases of operation. The kinematic characteristics of the single component devices are obtained. Using a special test rig, the power flows and the efficiency of the PS\|CVT system are experimentally determined in the first operational phase. The results are compared with those obtained by a theoretical model. The advantages are therefore shown, in terms of power and efficiency, of the PS\|CVT system proposed in this paper in comparison with the single CVT.