Continuous selection control for semi-automatic mechanical transmission
US5706197A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1995 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Jul 25, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19251
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control system and method for a vehicular semi-automatic mechanical transmission system (10) is provided for continuously informing the operator of available ratios and for permitting selection of a desired shift (GR.sub.T(2)), which will be immediately implemented, regardless of the previous selection or ongoing shift implementation, of engagement of a previously selected target ratio (GR.sub.T(2)). During a shift transient to engage a selected target ratio (GR.sub.T(1)), the display will show the maximum available upshifts and downshifts from the target ratio, and shift requests will be interpreted as requests for upshifts and downshifts from the initial target ratio (GR.sub.T(1)) into a new target ratio (GR.sub.T(1)).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.