Spark timing control system for an internal combustion engine
US4393837A · kind A · utility
11Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1980 |
| Grant date | Jul 19, 1983 |
| Priority date | — |
| Expiry date | Jul 30, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An ignition spark timing control system for an internal combustion engine capable of controlling the ignition spark advance angle corresponding to a knocking condition of the engine. The spark timing control system includes a means for retarding spark timing in response to an engine knocking condition and a means for detecting unstable driving condition of the engine and interrupting the retarding of the spark timing when the engine driving condition is unstable in order to maximize the engine output characteristics and improve fuel economy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.