Stabilizing function for torque based idle control
US6176218A · kind A · utility
6Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1999 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Sep 23, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for stabilizing the idle of an engine for a motor vehicle includes determining an engine rotational speed, modifying the engine rotational speed to define a friction engine speed, estimating a mechanical friction loss as a function of the friction engine speed, defining a torque request as a function of the mechanical friction loss and utilizing the torque request to control the engine at idle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.