Continuously variable transmission clutch anti-autoengagement in multi-clutch vehicle transmission arrangement
US8634998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2012 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | May 30, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/0644
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A machine is described that includes an engine, a multi-clutch transmission and a controller. The controller is configured with computer-executable instructions for managing operation of the multi-clutch transmission to avoid autoengagement of a disengaged clutch. The computer-executable instructions configure the controller to receive sensor signals indicative of current operating status of the machine; determine, based upon the sensor signals, a configured minimum engine speed needed to avoid autoengagement of the disengaged clutch; and conditionally increase an engine speed based upon a comparison of the configured minimum engine speed and a sensed current engine speed. The machine includes a continuously variable transmission coupled to the multi-clutch transmission, and the controller is configured to adjust the continuously variable transmission ratio to counter the engine speed increase and thus maintain a current clutch output speed when increasing the engine speed to avoid autoengagement of a disengaged clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.