- 专利标题： Hydraulic Speed Ratio Control Method for Vehicles with a Ball Variator Continuously Variable Transmission
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申请号： US15751219申请日： 2016-08-08
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公开(公告)号： US20180245674A1公开(公告)日： 2018-08-30
- 发明人: Jeffrey M. DAVID , Stijn GOOSSENS , Gordon M. MCINDOE , T. Neil MCLEMORE , Matthew SIMISTER , Gregory G. STEVENSON , Mark R. J. VERSTEYHE , Thomas J. VYNCKE
- 申请人： DANA LIMITED
- 国际申请： PCT/US16/46029 WO 20160808
- 主分类号： F16H15/50
- IPC分类号： F16H15/50 ; F16H61/664 ; F16H61/30 ; F16H63/06 ; F16H61/00
摘要：
This invention relates to controlling the speed ratio of a Continuous Variable Transmission with a hydraulic method. The Ball Planetary CVT design is adapted with a mechanical and hydraulic addition. The carrier of the ball-type variator is supported by hydraulic actuators. The result is that the speed ratio is controlled by both a set speed ratio and the torque flowing through the CVT. Subsequently, torque peaks are avoided and controllability of the CVT is increased.
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