No.1003E 2007 CVT Servo-Pump Flow Control |
| Category | TECHNICAL PAPER |
|---|---|
| Author | Y. ROTHENBÜHLER Mechatronic Systems R&D Department, Research & Development Center |
| Abstract | A continuously variable transmission (CVT) is controlled by a hydraulic system. The standard configuration uses a valve to set the necessary pressure. A pump connected to the engine generates the necessary fl ow. In order to improve on the current method, a servo-pump system can be used to control the CVT. The shifting pump is used to set the ratio while the clamping pump controls the secondary pressure. As knowledge of the fl ow is important in setting both the primary and secondary pressures, it is justifi ed to control the fl ow. This paper discusses the servopump model and the state-feedback of the servo-pump fl ow control and presents a number of results. |
| Keyword | CVT, servo-pump, control, state-feedback, decoupling |
| Search tag |
Download Ranking of
ENGINEERING JOURNAL
4
7
Summary:1,2025
4
Summary:2,2024-1,2025