Combustion control using ion sense feedback and multi-strike spark to manage high dilution and lean AFR
US7966992B2 · kind B2 · utility
8Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2009 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Feb 1, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P15/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method for operating a multiple cylinder internal combustion engine having at least one actuator for controlling charge dilution of at least one cylinder and at least one spark plug per cylinder include attempting to improve combustion quality by modifying ignition energy of the at least one spark plug before modifying charge dilution of the cylinder, and modifying both ignition energy and charge dilution substantially simultaneously to establish combustion if an ionization sense signal associated with the cylinder indicates a misfire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.