Invention Grant
- Patent Title: Windshield wiper arrangement including wiper control system
- Patent Title (中): 挡风玻璃刮水器布置包括刮水器控制系统
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Application No.: US578683Application Date: 1996-06-17
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Publication No.: US5726547APublication Date: 1998-03-10
- Inventor: Gerd Reime
- Applicant: Gerd Reime
- Assignee: Reime; Gerd
- Current Assignee: Reime; Gerd
- Priority: DEX9309837U 19930702; DEX4403221.8 19940203; DEX4411772.8 19940406
- Main IPC: B60S1/08
- IPC: B60S1/08 ; G01N21/43 ; G01N21/55 ; G01N21/84 ; G01V8/20
Abstract:
A windshield wiper arrangement which includes a windshield having a wiping area and a sensor-active surface on its wiping area. A wiper sweeps over the wiping area during a wiper operation. A wiper control system includes: a drive motor for driving the wiper; and a sensor system including a sensor disposed in the wiping area such that the wiper passes over the sensor n times during each wiper operation, n being equal to at least one, the sensor system further being configured for generating a sensor signal in response to an element coming into contact with the sensor-active surface on the windshield. The wiper control system further includes a signal processing device for generating the motor signal in response to the sensor signal which includes a counter arrangement having a counter for counting sensor signals generated by the sensor system thereby resulting in a counter state of the counter, the counter state of the counter further being equal to a predetermined starting value before each wiper operation. The signal processing device further includes an arrangement responsive to the counter state exceeding a predetermined threshold value for generating a motor signal for tripping each wiper operation, the threshold value being greater than n; and an arrangement for resetting the counter state to its starting value.
Public/Granted literature
- US5143651A Zinc oxide-based composition for low and medium voltage varistors Public/Granted day:1992-09-01
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