MONITORING A GEAR WEAR IN AN ELECTRIC POWER TRAIN
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United States of America Patent
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Issued Date -
Oct 5, 2023
app pub date -
Mar 24, 2023
filing date -
Mar 24, 2023
priority date (Note) -
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Abstract
An electric power train includes an electric drive, an electric motor driven by the electric drive, and a meshing pair of a drive gear and a driven gear. The drive gear is coupled to the electric motor and the driven gear is coupled to a mechanical load. The backlash of the meshing pair of the drive gear and the driven gear is measured and estimated based on a time until a contact of teeth of the rotating drive gear and the driven gear during a startup of the electric motor. Wear of the meshing pair of the drive gear and the driven gear based on a change in the measured backlash over time during the operation of the electric power train.
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