REAL-TIME PINCH DETECTION AND PREVENTION FOR STOW PATH POWER COLUMN
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United States of America Patent
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Issued Date -
Apr 6, 2023
app pub date -
Sep 30, 2022
filing date -
Oct 1, 2021
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Abstract
A method includes determining a current slew rate associated with a motor of the steering column, determining a speed slew rate associated with the motor, determining a current and speed slew rate threshold for the motor, and determining whether the current slew rate or the speed slew rate indicates a pinch event based on a comparison of the current slew rate, the speed slew rate, and the current and speed slew rate threshold. The method also includes, in response to a determination that at least one of the current slew rate and the speed slew rate indicates a pinch event, selectively instructing the motor to one of stop operation and reverse operation for a calibration period and, in response to the pinch event having a magnitude that is less than a pinch event threshold, selectively instructing the motor to continue operation.
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