发明授权
US06577091B2 Wiper control apparatus 失效
刮水器控制装置

  • 专利标题: Wiper control apparatus
  • 专利标题(中): 刮水器控制装置
  • 申请号: US09910840
    申请日: 2001-07-24
  • 公开(公告)号: US06577091B2
    公开(公告)日: 2003-06-10
  • 发明人: Hiroo YabeKazuhiro Kubota
  • 申请人: Hiroo YabeKazuhiro Kubota
  • 优先权: JP2000-222688 20000724
  • 主分类号: H02P104
  • IPC分类号: H02P104
Wiper control apparatus
摘要:
A wiper control apparatus includes a combination switch 2, a wipermotor 7, an autostop (AS) switch 8, a first semiconductor switch element 4 for on/off controlling energization of the wiper motor, a second semiconductor switch element 5 for turning on a closed circuit which passes a reverse current through the wiper motor 7 while the energization for the wiper motor 7 is off, a controller for ON/OFF controlling the first and the second semiconductor switch element, and a current limiting resistor R1 for limiting the current flowing the second semiconductor switch element 5. In this configuration, a wiper control apparatus can be provided which can solve the problem when the abnormality of short-circuiting downstream of the wiper motor occurs, is compact, reliable and surely operable using semiconductor switches and a digital-controlled controller.
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