发明授权
US5188007A Hydraulic control apparatus for belt-and-pulley type continuously
variable transmission, incorporating means for increasing belt
tensioning pressure upon reversal of rotating direction of pulleys
失效
用于皮带和带轮式无级变速器的液压控制装置，包括用于在使皮带轮的旋转方向反转时增加皮带张紧压力的装置
- 专利标题： Hydraulic control apparatus for belt-and-pulley type continuously variable transmission, incorporating means for increasing belt tensioning pressure upon reversal of rotating direction of pulleys
- 专利标题（中）： 用于皮带和带轮式无级变速器的液压控制装置，包括用于在使皮带轮的旋转方向反转时增加皮带张紧压力的装置
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申请号： US805041申请日： 1991-12-11
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公开(公告)号： US5188007A公开(公告)日： 1993-02-23
- 发明人: Yuji Hattori , Yoshinobu Soga , Masami Sugaya , Nobuyuki Kato
- 申请人： Yuji Hattori , Yoshinobu Soga , Masami Sugaya , Nobuyuki Kato
- 申请人地址： JPX Toyota
- 专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址： JPX Toyota
- 优先权： JPX2-416146 19901228
- 主分类号： F16H9/00
- IPC分类号： F16H9/00 ; F16H37/02 ; F16H61/00 ; F16H61/662
摘要：
A hydraulic control apparatus for controlling a continuously variable transmission of a motor vehicle, which transmission includes a first and a second shaft, a pair of variable-diameter pulleys provided on the first and second shafts, respectively, a transmission belt connecting the pulleys, and a pair of hydraulic actuators one of which receives a belt tensioning pressure for controlling a tension of the belt. The hydraulic control apparatus includes a reversal detecting device for determining whether a rotating direction of the pulleys has been reversed or not, and a pressure increasing device for temporarily increasing the belt tensioning pressure when the reversal detecting device detects reversal of the rotating direction of the pulleys.
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