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US 5,508,595 AGranted
Method of controlling a windshield wiper system
AssigneeLeopold Kostal GmbH & Co. KG
InventorEric G. Schaefer
Life of this patent
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AssigneeLeopold Kostal GmbH & Co. KG
InventorEric G. Schaefer
Estimating the term…
A method of automatically controlling the operating speed of a vehicular windshield wiping system based on an average rate of change in the value of a sensor signal indicative of the moisture on the windshield. The wiping system includes a motor for driving at least one wiper blade at a high speed and a low speed, and a sensor mounted to the windshield for monitoring a portion of the windshield wiped by the at least one wiper blade. The method includes determining an average rate of change in the sensor signal value over a predetermined period of time and operating the wiper system with the motor at the high speed based on the average rate of change in the sensor signal value. In one embodiment, the method includes wiper system is operated with the motor at the high speed based on the frequency with which the average rate of change in the sensor signal value drops below a first predetermined threshold.
A method of controlling a vehicular windshield wiping system, the wiping system including at least one wiper blade, a motor for driving the at least one wiper blade at a high speed and a low speed, and a sensor mounted to the windshield for monitoring a portion of the windshield wiped by the at least one wiper blade, the sensor generating a sensor signal having a value indicative of the moisture on the portion of the windshield, the system also including an electronic control unit for controlling the motor based on the sensor signal, the method comprising the steps of:
A system of controlling a vehicular windshield wiping system, the wiping system including at least one wiper blade, a motor for driving the at least one wiper blade at a high speed and a low speed, and a sensor mounted to the windshield for monitoring a portion of the windshield wiped by the at least one wiper blade, the sensor generating a sensor signal having a value indicative of the moisture on the portion of the windshield, the system also including an electronic control unit for controlling the motor based on the sensor signal, the system comprising:
Dependencies are inferred from the claim text.