Systems and methods for shift control for vehicular transmission
US8370032B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2007 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Oct 25, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/163
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Systems and methods for shift control for vehicular transmission. A transmission may shift gears at designated transmission shift points. When the slope of the road grade encountered by a vehicle changes, the transmission shift points may be altered to provide better vehicle performance. According to one embodiment, road slope may be calculated based upon vehicle acceleration and acceleration caused by pedal depression. In such an embodiment, brake indication may be calculated from the same road slope calculation without the use of a brake signal switch. If brake application is indicated by the road slope calculation, transmission shifting may be adjusted to prevent poor vehicle performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.