Internal-combustion engines – Cooling – Indicators and safety devices
Reexamination Certificate
1999-10-28
2001-04-17
McMahon, Marguerite (Department: 3747)
Internal-combustion engines
Cooling
Indicators and safety devices
C123S041020
Reexamination Certificate
active
06216645
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a method for controlling a coolant pump of an internal combustion engine, with the amount of heat to be discharged being determined from at least one engine operation parameter and a control signal for the scheduled rotational speed of the coolant pump being generated by means of pulse-width modulation depending on the amount of heat to be discharged. The invention further relates to an electrically driven coolant pump for an internal combustion engine, with an electromotor-pump unit and an electronic control unit for determining a pulse-width modulated control signal for the pump depending on at least one engine operation parameter.
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Bobretzky Peter
Pastleitner Harald
Benton Jason
Dykema Gossett PLLC
McMahon Marguerite
TCG Unitech Aktiengesellschaft
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