Lock-up control device for vehicle
US6345223B1 · kind B1 · utility
16Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2000 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Sep 28, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/6616
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A lock-up torque converter is equipped with a lock-up clutch. The lockup clutch may engage even when the vehicle is coasting (lock-up coasting). When an accelerator pedal is depressed in a stepwise manner during lock-up coasting, the lock-up clutch is temporarily disengaged. By setting the threshold value used for determination so that it is easier to determine that the accelerator pedal was depressed in a stepwise manner the lower the vehicle speed, the dual objectives of vibration suppression of the drive system and improvement of fuel cost-performance are realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.