Intelligent commutation pulse detection system to control electric D.C. motors used with automobile accessories

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United States of America Patent

PATENT NO 5497326
SERIAL NO

08285310

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A control system for use with a bidirectional motor connected to a motorized vehicle accessory to move the accessory a distance from a first position to a second position. The control system includes a detector responsive to control signals emitted from the motor during rotation, where the control signals indicate the amount of motor rotation. The control system also includes a memory that stores information used to represent the position of the accessory. Additionally, this control system includes a controller responsive to the memory and the detector. The controller provides an output signal to operate the motor based on the distance between a first position and a second position of the accessory as well as control signals that indicate the amount of motor rotation. The controller includes an adjustment routine that determines a correction factor that is applied to the output signal to compensate for inaccuracies in control signal detection.

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Patent Owner(s)

  • ZF FRIEDRICHSHAFEN AG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berland, Kerry Chicago, IL 18 441
Budniak, Mitchell Highland Park, IL 6 106
Kaul, Jeff Arlington Heights, IL 1 70

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