| 摘要 |
A control apparatus for an adjusting device in a motor vehicle is provided. The apparatus has a sensor, particularly a current sensor (S1), for generating a signal (U1 to U10, I1 to I3, &Dgr;t1 to &Dgr;t8) which is dependent on a motor movement by a motor in the adjusting device. The apparatus also has a power driver for controlling a motor current, and a processor (RE). The processor is designed and set up (i) to find a position (xm) from the sensor signal (U1 to U10, I1 to I3, &Dgr;t1 to &Dgr;t8), particularly from the ripple in the motor current, (ii) to associate a reference characteristic (Chref) of orderly signals (U1 to U10, I1 to I3, &Dgr;t1 to &Dgr;t8) from the sensor, particularly for the ripple, with a reference position (xref), (iii) to correct the position found (xm) on the basis of the reference characteristic (Chref) and the reference position (xref), and (iv) to control the motor current on the basis of the corrected position.
|
