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Apparatus and a method for controlling a wiper

  • US 4,740,735 A
  • Filed: 03/20/1987
  • Issued: 04/26/1988
  • Est. Priority Date: 04/23/1986
  • Status: Expired due to Fees
First Claim
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1. An apparatus for controlling a wiper comprising:

  • first detecting means for detecting an amount of rain positioned thereon and outputting a first output signal corresponding to the detected amount of rain;

    comparator means for comparing the first output signal with a first preset signal representing one of a first and a second predetermined amount of drops of water, and for outputting a second output signal if the first output signal is equal to or greater than said first preset signal;

    memory means for memorizing the second output signal and outputting a fourth output signal;

    exchanging means responsive to the second output signal for exchanging said first preset signal with a second preset signal representing the other one of the first and the second predetermined amount of drops of water;

    actuator means for actuating the wiper at one of a high and a low wiping speed, wherein said actuator means actuates the wiper at the high wiping speed in response to the fourth output signalwhen said first output signal is greater than one of said first and second preset signals.

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