Wiper device
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Mar 1, 2022
Grant Date -
Jun 25, 2020
app pub date -
Jan 31, 2018
filing date -
Jan 31, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A wiper motor control circuit carries out control in which a driving circuit generates, and supplies to a wiper motor, a voltage that eliminates deviation between a target speed and an actual speed of an output shaft. In a case in which a state in which the deviation between the target speed and the actual speed is greater than or equal to a predetermined threshold value continues for a predetermined time or more, the wiper motor control circuit carries out control that lowers the target speed and in which the driving circuit generates, and supplies to the wiper motor, a voltage that eliminates deviation between the lowered target speed and the actual speed of the output shaft.
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