Control apparatus for internal combustion engine
US9574514B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2011 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Feb 17, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electronic control unit calculates a rotation variation amount ΣΔNE as a cetane number index value of the fuel supplied to an internal combustion engine and executes fuel injection control in a first execution mode corresponding to the rotation variation amount ΣΔNE (S407, S408). In a mixing period in which the cetane number of the fuel supplied to the internal combustion engine is changed due to the fuel feed into the fuel tank (S401: YES), the fuel injection control is executed in a second execution mode such that, compared with the first execution mode, stable operation of the internal combustion engine is given more importance (S402:YES, S403). When calculation of the rotation variation amount ΣΔNE is executed during the mixing period (S404: YES), fuel injection control is executed while limiting the reflection of the rotation variation amount ΣΔNE (S405, S406).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.