Internal combustion engine control during cold start
US6941927B2 · kind B2 · utility
1Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2003 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Nov 28, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0414
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for controlling an internal combustion engine during a cold start operation. The engine is supplied with a substantially constant, lean air/fuel ratio immediately after the engine is started, while the engine has an idle speed that is allowed to vary as a function of the difference between a target air/fuel ratio and an actual air/fuel ratio. The invention further relates to an arrangement for carrying out the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.