Adaptive anti-hunt logic for automated transmission downshift control
US6123644A · kind A · utility
10Cited by
30References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1999 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Jul 19, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/405
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method/system for controlling downshifting in an automated mechanical transmission system (10) utilized on a vehicle. The anti-hunt logic after an upshift will sense conditions of high throttle demand (THL>85%) and low vehicle acceleration (d/dt(OS)<0) and reduce at least a portion (72) of the direction of last shift anti-hunt offset to the downshift profiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.