Determining outgassing of a fuel from a lubricant within an internal combustion engine and lambda value adaptation based on the determined outgassing of fuel
US9567925B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2011 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Apr 14, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/11
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for determining the quantity of outgassing of a fuel from a lubricant located in an intake section housing of an internal combustion engine may include (a) setting a first coil current through the housing, (b) measuring a first output value of a lambda controller, (c) setting a second coil current through the housing, the second coil current having a different current strength than the first coil current, (d) measuring a second output value of the lambda controller and (e) determining the quantity of outgassing of the fuel based on the measured first and second output values. In addition, a method for adapting a lambda value for a fuel/air mixture to be burnt in an internal combustion engine during a lower load range may include the above-mentioned method of determining the quantity of outgassing of a fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.