Misfire-detecting system for internal combustion engines
US5226394A · kind A · utility
16Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1992 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Oct 28, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P2017/125
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A misfire-detecting system for an internal combustion engine detects a value of sparking voltage generated after generation of an ignition command signal, compares the detected value of sparking voltage with a predetermined voltage value, and determines whether or not a misfire has occurred in the engine, based upon results of the comparison. The determination as to occurrence of the misfire is effected, based upon results of the comparison between the detected value of the sparking voltage and the predetermined voltage value, obtained within a previously set limited comparison period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.