Engine control system for internal combustion engine
US5373821A · kind A · utility
4Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1992 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Jan 16, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine control system retards a fuel ignition time based on a deviation in the intake air quantity from a predetermined target intake air quantity which is necessary to keep an internal combustion engine idling at a predetermined idle speed. The fuel ignition time is retarded when a transmission is shifted into a neutral range so as to cause a quantity of intake air to converge with the predetermined target quantity of intake air. An engine speed of the internal combustion engine thereby converges with the predetermined idle speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.