Ignition timing control system for internal combustion engine with knock sensor
US4489692A · kind A · utility
18Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1983 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Mar 3, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spark timing control apparatus controls the spark timing to retard or advance in accordance with the output signal from a knock sensor. An accelerating condition of the engine is determined depending on a particular knock occurence patterns including; whether the interval of knock occurences is larger or small, the total amount of retard angles is larger or small, or the frequency of knock occurences. When the accelerating condition is determined, the advancing rate of the spark timing is increased until a steady state of the engine operation is determined based on the output signal of the knock sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.