Method of controlling injection of an internal combustion engine as a function of fuel quality
US6279560A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Oct 28, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of controlling injection of an engine having an oxygen concentration sensor generating a composition signal correlated to the composition of the exhaust gases, and a number of injectors for injecting fuel for an operating injection time in each operating state of the engine, and each of which is assigned, in each operating state of the engine, a respective calibration injection time determined at an initial engine calibration stage using a reference fuel. In a given operating state of the engine, the control method including the steps of: determining a number of operating values of a control parameter as a function of the composition signal and of a proportional-integral control function; determining an intermediate value of the control parameter as a function of the aforementioned operating values of the control parameter; determining a current correction injection time as a function of the intermediate value of the control parameter, and of a reference value of the control parameter determined at the initial engine calibration stage using the reference fuel and relative to the operating state of the engine; and determining an operating injection time as a function of a c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.