Systems and methods for optimizing fuel injection in an internal combustion engine
US8725390B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jan 4, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for optimizing fuel injection in an internal combustion engine adjust start of fuel injection by calculating whether one of advancing or retarding start of fuel injection will provide a shortest path from a source angle to a destination angle. Based on the source angle and a given injection pulse width and angle increment, it is determined whether fuel injection will overlap with a specified engine event if start of fuel injection is moved in a direction of the shortest path. A control circuit increments start fuel injection in the direction of the shortest path if it is determined that fuel injection will not overlap with the specified engine event, or increments start fuel injection in a direction opposite that of the shortest path if it is determined that fuel injection will overlap with the specified engine event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.