| 摘要 |
Control apparatus for an adjusting device in a motor vehicle, having a sensor, particularly a current sensor (S<SUB>1</SUB>), for generating a signal (U<SUB>1 </SUB>to U<SUB>10</SUB>, I<SUB>1 </SUB>to I<SUB>3</SUB>, Deltat<SUB>1 </SUB>to Deltat<SUB>8</SUB>) which is dependent on a motor movement by a motor in the adjusting device, a power driver for controlling a motor current, and a processor (RE) which is designed and set up to find a position (x<SUB>m</SUB>) from the sensor signal (U<SUB>1 </SUB>to U<SUB>10</SUB>, I<SUB>1 </SUB>to I<SUB>3</SUB>, Deltat<SUB>1 </SUB>to Deltat<SUB>8</SUB>), particularly from the ripple in the motor current, to associate a reference characteristic (Ch<SUB>ref</SUB>) of orderly signals (U<SUB>1 </SUB>to U<SUB>10</SUB>, I<SUB>1 </SUB>to I<SUB>3</SUB>, Deltat<SUB>1 </SUB>to Deltat<SUB>8</SUB>) from the sensor, particularly for the ripple, with a reference position (x<SUB>ref</SUB>), to correct the position found (x<SUB>m</SUB>) on the basis of the reference characteristic (Ch<SUB>ref</SUB>) and the reference position (x<SUB>ref</SUB>), and to control the motor current on the basis of the corrected position.
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