Electricity: motive power systems – With signals – meters – recorders or testing devices
Patent
1998-08-14
1999-08-03
Ip, Paul
Electricity: motive power systems
With signals, meters, recorders or testing devices
318434, 318483, 318DIG2, 733365, H02P 104, G01W 114
Patent
active
059329831
ABSTRACT:
A wiper motor control using a load sense resistor to monitor conditions confronting the wiper operation. The control can detect if the wiper is frozen to the window, moving too slowly, moving too quickly, etc. The power to the motor is then adjusted to achieve a desired speed, or, otherwise adjusted, based upon the detected conditions. Further, the direction of the motor may be reversed based upon the detected conditions. In a preferred embodiment, the load sense resistor is provided by a defroster filament strip. Alternatively, a temperature sensor may be used to detect the conditions confronting the wiper operation.
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Bomya Timothy J.
Maue H. Winston
Ip Paul
UT Automotive Dearborn Inc.
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