Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2006-12-26
2006-12-26
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090110, C123S090160, C123S090170, C123S090310, C074S56800M, C464S001000, C464S002000, C464S160000
Reexamination Certificate
active
07152561
ABSTRACT:
A control structure for the adjusting motor of an electric camshaft adjuster in an internal combustion engine is provided. The control structure includes a controller which processes measuring signals of the internal combustion engine to control data for the adjusting motor. A controller which has meaningful values for the adjusted setpoint rotational speed of the adjusting motor, even when the input differential signal has a zero value, is obtained by applying the signal of an uncontrolled rotational speed to the output signal of a controlled setpoint rotational speed.
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Overberg Martin
Schäfer Jens
Steigerwald Martin
Denion Thomas
INA-Schaeffler KG
Riddle Kyle M.
Volpe and Koenig P.C.
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