System and method for controlling an engine air-fuel ratio
US9863342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2015 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Feb 18, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T30/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Various methods and systems are provided for adjusting an air-fuel ratio for combustion in an engine. In one embodiment, a method for an engine (e.g., a method for controlling an engine system) comprises responding to a sensed change in a load on the engine, or indications of engine knock or misfire, by one or more of: altering a speed of the engine, adjusting a fueling flow rate into at least one cylinder of the engine, and adjusting a position of a valve in a bypass passage configured to direct compressed intake air away from cylinders of the engine to obtain a determined air-fuel ratio; and thereby maintaining an air-fuel ratio in a determined range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.