金属带式无级变速器速比变化机理

Metal Vbelt Continuously Variable Transmission Shifting Principle

摘要:

在金属带式无级变速器的动态分析模型基础上，综合分析与速比变化相关的量，提出一种速变器处于蠕动滑移状态时的速比变化机理模型.采用MATLAB Simulink软件，以无级变速器实车测试工况作为仿真模型的输入，得到的仿真结果与实车实验数据一致性高.新模型克服了以往模型在速比变化过程中，速比变化率响应范围过大、速比变化率振荡的不足.

关键词:无级变速器; 速比变化机理; 速变器

Abstract:

Based on an analysis of the relative quantities of continuously variable transmisson(CVT) shifting,a new shifting model is developed on the basis of the CVT dynamic model.With the measured condition as the input in the MATLAB Simulink,simulation results agree well with the measured data.The new variator shifting model can avoid large shifting range and shifting rate oscillation.

Key words:continuously variable transmisson; shifting principle; variator