Title:
WIPER CONTROL DEVICE
Document Type and Number:
Japanese Patent JP3865536
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a wiper control device capable of smoothly switching the rotating direction with the rotating speed in controlling a wiper link device which eliminates a difference in wiping range between high speed operation and low speed operation due to the inertia of a wiper blade by varying the rotating direction of a wiper motor between low speed operation and high speed operation and making the length of a motor arm of a wiper link longer during low speed operation and shorter during high speed operation by an eccentric metal mechanism.
SOLUTION: By a motor driving circuit 11 having mainly four relays L1 to L4 and two transistors TR1, TR2, according to a low speed driving signal from a controller 10, a current directing from a low brush terminal 3a of a wiper motor 3 to a common brush terminal 3c is supplied, and according to a high speed driving signal, a current directing from the common brush terminal 3c of the wiper motor 3 to a high brush terminal 3b is supplied.
Inventors:
Masaru Kato
Yasuki Matsumoto
Haruo Yamazaki
Yasuki Matsumoto
Haruo Yamazaki
Application Number:
JP19925799A
Publication Date:
January 10, 2007
Filing Date:
July 13, 1999
Export Citation:
Assignee:
Automotive Electric Industry Co., Ltd.
International Classes:
B60S1/08; B60S1/18; H02P1/22; H02P3/08; (IPC1-7): B60S1/08; H02P1/22; H02P3/08
Domestic Patent References:
| JP63232053A | ||||
| JP7165021A | ||||
| JP9207719A | ||||
| JP1120619A |
Attorney, Agent or Firm:
Katsuji Matsuda