Procedure for Detecting a Transmission Backlash in a Power Tool, in Particular a Hand-Held Power Tool, and Power Tool
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United States of America
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Apr 7, 2022
app pub date -
Sep 29, 2021
filing date -
Sep 29, 2021
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Abstract
A method for detecting a transmission backlash in a hand-held power tool, the hand-held power tool comprising a drive motor that has a drive shaft, a tool spindle, and a transmission that, in respect of drive, connects the drive shaft to the tool spindle, includes actuating, in a first actuation, the drive motor at least until the value of a first variable, representing a drag torque, is at least approximately constant. The method includes, during the first actuation, determining a value of a second variable which is associated with the rotation of the drive shaft of the drive motor during the first actuation, and determining a value of a third variable, representing a transmission backlash, based upon a change in the second variable during the first actuation.
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