Electricity: motive power systems – Constant motor current – load and/or torque control
Reexamination Certificate
2005-06-29
2010-06-22
Duda, Rina I (Department: 2837)
Electricity: motive power systems
Constant motor current, load and/or torque control
C318S603000, C318S607000
Reexamination Certificate
active
07741800
ABSTRACT:
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 (U1to U10, I1to I3, Δt1to Δt8) 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 (U1to U10, I1to I3, Δt1to Δt8), particularly from the ripple in the motor current, (ii) to associate a reference characteristic (Chref) of orderly signals (U1to U10, I1to I3, Δt1to Δt8) 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.
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Translation of International Publication No. WO 2006/002899, published Jan. 12, 2006.
Buhlheller Jürgen
Übel Wolfgang
Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft
Duda Rina I
White & Case LLP
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