Automatic clutch control for coasting with brake-condition responsive hysteresis width
US6024673A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 19, 1999 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Feb 19, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/60
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a vehicle with an automatically controlled clutch in which ON-OFF of the friction clutch is automatically controlled by a controller, clutch control during coasting (with the accelerator depression amount being 0%) is conducted according to a clutch ON-OFF map for coasting provided in the controller. Two different clutch ON-OFF maps for coasting are provided; one having a smaller hysteresis width, and the other having a larger hysteresis width. Clutch control during coasting is conducted by applying the map with a smaller hysteresis width when the brake pedal is stepped on or applying the map with a larger hysteresis width when the brake pedal is not stepped on. Thus, clutch ON-OFF hunting can be avoided, and smooth stopping can be conducted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.