Method and device for operating an internal combustion engine

Details Method and device for operating an internal combustion engine Method and device for operating an internal combustion engine

2011-02-22

2011-02-22

Kwon, John T (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S113000, C123S431000

Reexamination Certificate

active

07894973

ABSTRACT:
In a method for operating an internal combustion engine, a setpoint fuel quantity to be injected is subdivided into a first fuel quantity which is to be injected into an intake manifold of the internal combustion engine, and a second fuel quantity to be injected directly into a combustion chamber of the internal combustion engine. The subdivision of the fuel quantity is performed as a function of a temperature that is characteristic for the operation of the internal combustion engine, e.g., in a start of the internal combustion engine, and the ratio between the first fuel quantity and the second fuel quantity is continually modified as a function of the temperature.

REFERENCES:
patent: 7533518 (2009-05-01), Kurtz et al.
patent: 7581531 (2009-09-01), Schulz
patent: 2006/0254259 (2006-11-01), Kurtz et al.
patent: 2009/0210133 (2009-08-01), Kemmer et al.

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