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.
Claims10
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,
- wherein the evaluation is made in the course of process step d. by an algorithmic evaluation, which is based on selected curve features of the motor current curve, which characterize the motor current curve after reaching the load in the rest state.
Dependencies are inferred from the claim text.