Malfunction judging apparatus for fuel feeding apparatus and malfunction judging method for fuel feeding apparatus
US9366198B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2015 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Feb 4, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/3094
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a malfunction judging method for a fuel feeding apparatus in an internal-combustion engine, a feedback correction value is calculated based on an air-fuel ratio parameter and a predetermined feedback control algorithm. In which region a load parameter exists among a first region in which only a first fuel feeding apparatus is used, a second region in which only a second fuel feeding apparatus is used, and a third region other than the first region and the second region is determined. The feedback correction value calculated in a case where the load parameter exists in the first region is determined as a first learned value using a predetermined first learning method. The feedback correction value calculated in a case where the load parameter exists in the second region is determined as a second learned value using a predetermined second learning method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.