Method for determining the tension of a drive belt
AssigneeGebr. Bode GmbH & Co. KG
InventorDaniel ANDLER
Life of this patent
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Abstract
A method for determining the tension of a drive belt, wherein the drive belt is provided for transmission of a torque generated by a drive unit to a load, for example, a door leaf of a door system includes a first process step a., the load is moved from a moving state into a rest state. In a following process step b., the motor voltage is recorded during execution of process step a. and the time-resolved motor voltage curve is prepared. In step c., the motor current is determined from the recorded motor voltage or the motor voltage curve and a time-resolved motor current curve is prepared. In a last step d., the time-resolved motor current curve is evaluated and the tension of the drive belt is determined by means of selected curve features of the motor current curve.
Claims11
A method for determining the tension of a drive belt, wherein the drive belt is provided for transmission of a torque generated by a drive unit to a load, the method including the following steps:
- a. moving the load from a moving state into a rest state;
- b. recording the motor voltage during the execution of process step a. and preparing a time-resolved motor voltage curve;
- c. determining the motor current from the recorded motor voltage or the motor voltage curve and preparing a time-resolved motor current curve;
- and
- d. evaluating the time-resolved motor current curve and determining the tension of the drive belt by selected curve features of the motor current curve.
Dependencies are inferred from the claim text.