Wiper control device
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United States of America Patent
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Aug 2, 2022
Grant Date -
Oct 29, 2020
app pub date -
Jan 17, 2019
filing date -
Jan 18, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A wiper control device that properly detects restriction of a wiper blade according to a travel distance of the wiper blade. When a state in which a rotation speed of an output shaft calculated from a rotation angle of the output shaft detected by a rotation angle sensor is equal to or slower than a speed threshold defined according to a travel distance of the wiper blade and in which a current detected by a current detector is equal to or larger than a current threshold continues for a predetermined determination period, a microcomputer stops a wiper motor or reverses a direction of a wiping action of the wiper blade.
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