Engine operating parameter control apparatus
US4612900A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1985 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Feb 20, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control apparatus for an internal combustion engine in which the condition of the operating parameters of the engine is changed over according to the detected result of the occurrence of knocks only when the engine lies in a predetermined operating region. The operating parameters include an ignition timing, a supercharging pressure, a compression ratio, and an air/fuel ratio. The knocks of the engine are integrated and compared with a threshold level to determine which of premium or regular gasoline is being used. In this determination, if the operating region lies in said predetermined operating region, the condition of the operating parameters is changed over. The predetermined operating region is defined by a load information and a speed information of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.