Method for controlling a direct-injection internal combustion engine and engine using such a method
US7290523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2005 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Dec 10, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method for controlling an internal combustion engine having a means (16) for directly injecting fuel as well as a means (22) for admitting at least one fluid into the combustion chamber, a cylinder (12), a burned-gas exhaust means (28), and a processing and control unit (48) receiving information on at least the driver's torque demand and the engine speed (Ne), comprising a) determining the desired torque (Torque_des) corresponding in particular to driver demand; b) from this desired torque, determining a desired Indicated Mean Effective Pressure (IMEP_des) from which the parameters (Mair_sp, BGR_sp) are established to control admission of at least one fluid into the combustion chamber; and c) determining a specified value of the IMEP (IMEP_sp) from the desired IMEP and at least one magnitude linked to the fluid admitted into the combustion chamber, to define the fuel injection parameters (Mfuel_i, SOI_i, Pfuel) in the combustion chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.