Method and device for detection of ignition failures in an internal combustion engine cylinder
US5495757A · kind A · utility
8Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1995 |
| Grant date | Mar 5, 1996 |
| Priority date | — |
| Expiry date | May 5, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P2017/125
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A second spark is triggered, after a first ignition spark. The initiation overvoltage of the second spark is detected. The overvoltage and the occurrence or the non-occurrence of a failure of ignition of the air/fuel mixture prior to the second spark is deduced, according to whether the overvoltage is greater or less than a predetermined threshold voltage. Application to the protection of a chamber containing an oxidation, reduction catalyst for the exhaust gases of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.