Apparatus and methods for protecting a catalytic converter from misfire
US7069911B1 · kind B1 · utility
2Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2005 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jan 26, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/1015
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of controlling engine operation in a vehicle in response to a misfire of one of a plurality of engine cylinders fueled through fuel injectors. The vehicle includes a fuel vapor storage canister. The method includes disabling at least one of the fuel injectors, using an open loop to control fuel delivery by the injectors to the cylinders, and disabling purging of the canister. The disabling and using steps are performed while the misfire continues.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.