Misfire detection in engines for on-board-diagnostics
US7571640B2 · kind B2 · utility
38Cited by
15References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2007 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Jul 16, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Detection of cylinder misfires in engines. In one aspect of the invention, a method for detecting a cylinder misfire in an engine includes monitoring a temperature in the exhaust of the engine. Vibration of the engine is analyzed to identify a misfiring cylinder in the engine if the monitored temperature indicates a misfire may have occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.