BMXNOM0200
链式与带式CVT的效率在速比1时近似,在车辆向高速档变速时,链式CVT效 率 较 带 式CVT高2.27%~5.53%;在车辆向低速档变速时,链式CVT效率较带式CVT高1.38%~4.27%,且随着转矩的增大,链式与带式CVT效率的差值增大。
3.带式与链式无级变速器的噪声对比
带式CVT因钢带的钢片数目多,钢片节距小,传动过程中的多边形效应较小,不易引起振动和噪声;而链式CVT因链节之间的节距较大,多边形效应较大,更容易产生振动和噪声。因此,带式CVT具备更佳的NVH性能,如图6所示。链式CVT通过加装导轨、隔音罩等附件,能够获得的降噪效果
BMXNOM0200
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