中国机械工程Issue(12)：1687-1693,7.DOI:10.3969/j.issn.1004-132X.2014.12.024
无级变速器夹紧力控制方法的可靠性
Reliability Analysis of Continuously Variable Transmission Clamping Force Control Algorithm
摘要
Abstract
From three respects including clamping force computing method ,control algorithm de-velopment and clamping force reliability validation ,several key points of CVT clamping force control process were studied .The obscure concepts of absolute safety factor and relative safety factor were ex-plained .Normal relative safety factor method could not ensure the safety of clamping force .Inertia torque and computing process were analyzed to determine the influence factors of primary pulley torque computing error .The right computing method and process of clamping force target value were presented .Coupling effects between clamping force control and ratio control were studied by experi-ments .To avoid metal-belt slipping ,ratio shift rate had to be limited while the vehicle was in low speed and heavy duty .The most likely condition leading to metal-belt slipping was analyzed .To vali-date the reliability of control methods ,vehicle running process from ice surface to cement road was simulated .关键词
车辆工程/无级变速传动/夹紧力/可靠性Key words
automotive engineering/continuously variable transmission(CVT )/clamping force/re-liability分类
交通工程引用本文复制引用
郝允志,孙冬野,林毓培..无级变速器夹紧力控制方法的可靠性[J].中国机械工程,2014,(12):1687-1693,7.基金项目
中央高校基本科研业务费资助项目（XDJK2010B004）；重庆市科委重点攻关项目（2011GGB60011）；西南大学科技基金资助项目 （）
