Fuel injection device for internal combustion engine
US8515649B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2010 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | May 25, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M69/046
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to fuel injection devices for internal combustion engines. An object of the present invention is to provide a fuel injection device for an internal combustion engine capable of identifying a non-contributing fuel quantity when port injection and cylinder injection are simultaneously performed. If an explosion count and a coolant temperature for any cycle can be acquired, they can be applied to a first map and a second map to thereby find non-contributing fuel for 100% port injection and non-contributing fuel for 100% cylinder injection, respectively. Each of these found values of the non-contributing fuel is multiplied by a corresponding injection share ratio during injection of the non-contributing fuel to thereby find non-contributing fuel that takes into account the injection share ratio. Finally, these values are added up to arrive at a non-contributing fuel requirement value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.