Wiper control device
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United States of America Patent
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-
Jun 16, 2020
Grant Date -
Oct 31, 2019
app pub date -
Apr 9, 2019
filing date -
Apr 27, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A wiper control device that includes: a current detection section that detects a flow of current through a coil of a wiper motor; an environmental information acquisition section that acquires a vehicle speed or a vehicle external air temperature as environmental information; and a control section that controls a drive circuit such that a torque of an output shaft that is estimated from the current detected by the current detection section becomes equal to or less than a base limit torque that corresponds to a rotation angle detected by a rotation angle detection section, and such that a torque of the output shaft becomes equal to or less than a base limit torque that is corrected according to environmental information acquired by the environmental information acquisition section.
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