Wiper device
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United States of America Patent
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Feb 13, 2024
Grant Date -
May 20, 2021
app pub date -
Mar 28, 2019
filing date -
Apr 27, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A wiper device including: a power supplying circuit including plural switching elements, the power supplying circuit supplying, to a wiper motor, voltage that has been converted in accordance with switching control of the plural switching elements; a temperature detecting section detecting a temperature relating to a temperature of at least one of the switching elements among the plural switching elements; a current detecting section detecting current flowing to any of the switching elements among the plural switching elements; and a control section that, in a case in which the current detected by the current detecting section exceeds a limit current at the temperature detected by the temperature detecting section, carries out switching control of the switching elements such that the voltage supplied to the wiper motor decreases.
First Claim
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International Classification(s)
- H02M:APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEE....
- G05B:CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTION....
- H02P:CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATO....
- G05D:SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC....
- B60S:SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTIN....
- H02H:EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
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