Control system and method for an internal combustion engine
US6732682B2 · kind B2 · utility
11Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2002 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Jun 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control system for an internal combustion engine is provided. The engine includes a compression ratio control mechanism and an ignition timing control system. The control system comprises an engine control for controlling the compression ratio control mechanism and the ignition timing control system so that when the engine is cold, the ignition timing is retarded largely from an MBT point and the compression ratio is set higher than that obtained when the engine is cold and operated at corresponding engine rpm and engine load. A method for controlling such an internal combustion engine is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.