Vehicle driveline control including open clutch indicator
US7727111B2 · kind B2 · utility
0Cited by
19References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2002 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Nov 7, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2500/7104
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle driveline control system includes monitoring when the transmission is in gear and the clutch is left open. If that condition exists for a selected amount of time, the controller provides an indication to the driver regarding the open clutch status. In one example, the controller alters the RPM rate of the engine to provide audible feedback to the driver. For example, the controller raises the engine RPM rate from an idle rate to a higher rate to simulate what the driver hears upon vehicle launch. A variety of indicators and control strategies may be used with a system designed according to this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.