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Power window or panel controller

DC
  • US 6,064,165 A
  • Filed: 10/25/1996
  • Issued: 05/16/2000
  • Est. Priority Date: 04/22/1992
  • Status: Expired due to Term
First Claim
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1. Apparatus for controlling motion of a motor driven element in a vehicle over a range of motion and for altering said motion when undesirable resistance to said motion is encountered, said apparatus comprising:

  • a) a sensor for measuring a parameter of a motor coupled to the motor driven element that varies in response to a resistance to motion during all or part of a range of motion of the power driven element, the sensor taking a multiplicity of discrete measurements as the motor moves the motor driven element over its range of motion;

    b) a memory for storing a number of desired measurement values from the sensor based on measurements of said parameter over at least a portion of said range of motion;

    c) comparator means for determining whether a subsequently measured parameter value falls outside a threshold parameter range bounding the desired measurement values for the parameter as the motor driven element moves over its range of motion, values of the threshold parameter range varying with a position of the motor driven element over said range of motion or an elapsed time of movement of the motor driven element from commencement of motion of the motor driven element or a speed of movement of the motor driven element over said range of motion, the threshold parameter range values being determined for a selected one of;

    1) a multiplicity of positions of the power driven element over at least a portion of said range of motion, a threshold parameter range value for a given position of the motor driven element being based on desired measurement values stored in memory corresponding to the given position of the motor driven element;

    2) a multiplicity of elapsed times of movement of the motor driven element from commencement of motion of the motor driven element, a threshold parameter range value for a given elapsed time of movement of the motor driven element from commencement of motion being based on desired measurement values stored in memory corresponding to the given elapsed time of movement of the motor driven element; and

    3) a multiplicity of speeds of movement of the power driven element over at least a portion of said range of motion, a threshold parameter range value for a given speed of the motor-driven element being based on desired measurement values stored in memory corresponding to the given speed of the motor driven element;

    d) a controller coupled to the comparator means for altering motion of said motor driven element in response to a determination from said comparator means; and

    e) said motor driven element comprising a window and the memory comprising memory means to store a multiplicity of predetermined desired measurement values for a fixed size threshold parameter range.

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