Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2008-09-09
2008-09-09
Moulis, Thomas N (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S511000
Reexamination Certificate
active
11477778
ABSTRACT:
A method and a device for controlling a fuel injection system for an internal combustion engine of a motor vehicle, whereby the internal combustion engine has a common rail, a high-pressure pump, a flow control valve for controlling the fuel delivery rate of the high-pressure pump into the common rail and a control unit for triggering the flow control valve. The method comprises the steps of determining the prevailing fuel demand in the common rail as a function of the prevailing driving state of the vehicle and controlling the pulse duty factor and frequency of the triggering of the flow control valve as a function of the prevailing fuel demand determined in the common rail.
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European Search Report dated May 16, 2007.
Crowell & Moring LLP
Dr. Ing. h.c.F. Porsche Aktiengesellschaft
Moulis Thomas N
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