Fuel injection system with injection characteristic learning function
US7895990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2008 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Oct 9, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection system designed to determine a correction value for correcting the quantity of fuel sprayed from a fuel injector into an internal combustion engine. The fuel injection system instructs the fuel injector to inject the fuel into the engine a plurality of times cyclically to learn an injection characteristic unique to the fuel injector and changes an injection duration for which the fuel is to be sprayed in each of injection events to disperse the injection durations evenly around a target injection quantity, thereby enabling the correction value to be determined in a decreased number of injections of fuel for a decreased amount of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.