Method of controlling a vehicle during an auxiliary pump failure
US8219291B2 · kind B2 · utility
4Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2010 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Jan 22, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2312/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of controlling a vehicle includes signaling a transmission to shift into a first gear ratio and sensing a current gear ratio of the transmission after signaling the transmission to shift into the first gear ratio. The method further includes implementing a diagnostic transmission shift control strategy to override a normal transmission shift control strategy when the current sensed gear ratio is not equal to the requested first gear ratio to verify proper functionality of a mode control valve that is responsible for shifting the transmission into the first gear ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.