Pinch detection device at opening/closing section, vehicle having the device, and method for detecting pinch at the opening/closing section
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United States of America Patent
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Sep 1, 2015
Grant Date -
May 2, 2013
app pub date -
Dec 16, 2011
filing date -
Dec 24, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A pinch detection device at an opening/closing section has a very simple structure that can surely detect a pinch without faulty operation in a vehicle whose power supply voltage greatly fluctuates. The pinch detection device includes a sensor for detecting displacement of an opening/closing section of a vehicle to be opened/closed by a motor, and a time counter for counting a relative time adjusted according to a fluctuation in a power supply voltage. The pinch detection device also has a pinch detector for detecting a pinch of a foreign matter at the opening/closing section according to a change in a relative speed obtained based on a change in the displacement on a basis of the relative time.
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