公开(公告)号：EP3408565A1

公开(公告)日：2018-12-05

申请号：EP17704611.7

申请日：2017-01-26

申请人： Dana Limited

发明人： DAVID, Jeffrey, M. ,  MCINDOE, Gordon, M. ,  MCLEMORE, Thomas, Neil ,  SEXTON, Patrick ,  SIMISTER, Matthew ,  SMITHSON, Robert, A.

IPC分类号： F16H61/66 ,  F16H61/664 ,  F16H15/28

CPC分类号： F16H61/66 ,  F16H15/28 ,  F16H61/6649

摘要： Provided herein is a control system for a multiple-mode continuously variable transmission having a ball planetary variator. The control system has a transmission control module configured to receive a plurality of electronic input signals, and to determine a mode of operation from a plurality of control ranges based at least in part on the plurality of electronic input signals. The system also has a dither control module configured to store at least one calibration map, and configured to determine an oscillating change in speed ratio applied to a commanded speed ratio signal during operation of the CVP to manage thermal and mechanical stress on the surface of the ball.

公开(公告)号：EP3334959A1

公开(公告)日：2018-06-20

申请号：EP16835757.2

申请日：2016-08-08

申请人： Dana Limited

发明人： SIMISTER, Matthew ,  VYNCKE, Thomas ,  VERSTEYHE, Mark R. J. ,  DAVID, Jeffrey M. ,  MCINDOE, Gordon ,  MCLEMORE, T. Neil ,  STEVENSON, Gregory

IPC分类号： F16H47/08 ,  F16H13/08 ,  F16H15/26 ,  F16H15/28 ,  F16H15/50 ,  F16H61/664

CPC分类号： F16H15/503 ,  F16H15/28 ,  F16H61/0021 ,  F16H61/30 ,  F16H61/664 ,  F16H63/065

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.