Power transfer system regulated using a dithered control signal
US7194350B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2004 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Sep 27, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W50/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A torque transfer system for transferring torque between a first rotary member and a second rotary member includes a clutch pack that is operably disposed between the first rotary member and the second rotary member to regulate torque transfer therebetween and a clutch actuator for regulating engagement of the clutch pack. A controller generates a dithered control signal by superimposing a dithering signal onto a digital control signal. The controller determines a time averaged duty cycle DCavg of the dithered control signal, determines an amplitude AMP of the dithered control signal, determines a wave function WF that describes a wave shape of the dithered control signal and calculates a pulse duty cycle PDC for each pulse of the dithered control signal using the average duty cycle, amplitude, and wave function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.