Patent ID: 7222593

Claim:
An adjusting device for adjusting a rotational position of a camshaft relative to a crankshaft of a reciprocating piston engine, the adjusting device comprising: a control circuit having at least one controller; an adjusting actuator connected to the control circuit; a data memory linked to the control circuit and configured to store a plurality of controller coefficients for a transfer function of the controller, the data memory having at least two controller memory areas for storing sets of the controller coefficients; a mode selector capable of optionally and alternately connecting the control circuit to one controller memory area of the at least two controller memory areas such that the set of controller coefficients stored in the one controller memory area is used for the control; and an ascertaining device configured to ascertain an operating state of at least one of the adjusting device and the reciprocating piston engine, the ascertaining device being connected to the mode selector so that the set of controller coefficients used for the control is dependent on the operating state.