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Title:
RAINDROP SENSING TYPE WINDSHIELD WIPER SYSTEM
Document Type and Number:
Japanese Patent JP3809911
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a raindrop sensing type windshield wiper system for improving wiring structure between a multi-functional switch (20) and a rain sensor module (10) to reduce weight and cost of a wiring harness, wherein the sensitivity of the rain sensor module (10) is adjusted only by a resistance value of an intermittent volume of the multifunctional switch (20), which is not influenced by fluctuation of a battery voltage generated in the inside of a vehicle.
SOLUTION: The raindrop sensing type windshield wiper system comprises wiper motors, low and high speed relays for driving them respectively at a low or high speed, the multifunctional switch (20) for outputting a wiper operation signal by operation of a user, and the rain sensor module (10) for sensing the quantity of rainwater when an automatic signal is input therefrom and for operating the low and/or high speed relay according to the sensed quantity of the rainwater. The rain sensor module (10) has a first voltage sensing means for sensing the battery voltage, a second voltage sensing means for sensing a voltage of the automatic signal, and a micro computer for adjusting the sensitivity of the rain sensor module (10) based on the ratio of both voltages.


Inventors:
金 一 秀
Application Number:
JP2003385990A
Publication Date:
August 16, 2006
Filing Date:
November 14, 2003
Export Citation:
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Assignee:
現代自動車株式会社
International Classes:
B60S1/08; B60S1/02; B60S1/04; B60S1/06; H02P1/04; H02P3/00; (IPC1-7): B60S1/08
Domestic Patent References:
JP2000025576A
JP2000513301A
JP9126998A
Attorney, Agent or Firm:
特許業務法人共生国際特許事務所



 
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