Control structure for the adjusting motor of an electric...

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Reexamination Certificate

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Details

C123S090170, C123S090110, C123S090310, C123S090160, C074S56800M, C464S160000

Reexamination Certificate

active

07059285

ABSTRACT:
A control structure for the adjusting motor (8) of an electric camshaft adjuster (6) in an internal combustion engine (1) is provided. The control structure includes a controller (19) which processes measuring signals of the internal combustion engine (1) to control data for the adjusting motor (8). A controller (19) which has meaningful values for the adjusted setpoint rotational speed of the adjusting motor (8), even when the input differential signal has a zero value, is obtained by applying the signal of an uncontrolled rotational speed (21) to the output signal (20) of a controlled setpoint rotational speed.

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