Downshift logic for semi-automatic mechanical transmission with manual clutch controller
US5620391A · kind A · utility
3Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Aug 7, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H63/502
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control system and method for a vehicular semi-automatic mechanical transmission system (10) having a clutch operator (30) and an overriding manual clutch control (3) for controlling engagement and disengagement of the master clutch (14) is provided. The control is effective to sense manual clutch disengagement during a downshift and to cease further attempts to cause synchronization by engine fuel manipulation (ES=IS=OS * GR.sub.T) until a change in conditions is sensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.