Apparatus for controlling the idling speed of an internal combustion engine
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United States of America Patent
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Aug 29, 2000
Grant Date -
N/A
app pub date -
Aug 4, 1999
filing date -
Feb 4, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for controlling an idling speed of an internal combustion engine is disclosed. The apparatus includes an electric machine operatively coupled to the internal combustion engine for applying a braking torque to the internal combustion engine to reduce the idling speed and for applying a driving torque to the internal combustion engine to increase the idling speed. It also includes a controller for controlling the electric machine. The controller is responsive to a load change to control the electric machine to apply one of a braking torque and a driving torque to the internal combustion engine to substantially maintain the idling speed at a predefined level.
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