公开(公告)号：US5469754A

公开(公告)日：1995-11-28

申请号：US282599

申请日：1994-07-29

申请人： Takafumi Sakai ,  Hideki Wakamatsu ,  Yoshihiro Tsuboi ,  Masaya Kawauchi

发明人： Takafumi Sakai ,  Hideki Wakamatsu ,  Yoshihiro Tsuboi ,  Masaya Kawauchi

IPC分类号： F16H61/04 ,  F16H59/36 ,  F16H59/40 ,  F16H59/42 ,  F16H59/46 ,  F16H59/70 ,  F16H61/06 ,  F16H61/70 ,  F16H59/20

CPC分类号： F16H61/061 ,  F16H2061/044 ,  F16H59/36 ,  F16H59/40 ,  F16H59/42 ,  F16H59/46 ,  F16H59/70 ,  F16H61/70 ,  F16H61/702 ,  Y10T74/1926

摘要： The transmission is of a type that a low-speed transmission train is established in cooperation with one-way clutch. A high-speed transmission train is established by hydraulic oil supply via a shift valve in a condition in which the hydraulic oil is kept supplied to the low-speed hydraulic engaging element. A pressure adjusting valve and a hydraulic oil pressure control valve control, to increase or reduce, the supply pressure of the hydraulic oil to the high-speed hydraulic engaging element. A speed change controller at an initial stage maintains the shift valve, at the time of speed changing from a high-speed transmission train to a low-speed transmission train, in a condition in which the hydraulic oil is supplied to the high-speed hydraulic engaging element. The supply pressure of the hydraulic oil is reduced in this condition until the high-speed hydraulic engaging element gives rise to a slip. The supply pressure of the hydraulic oil is maintained in the condition of reduced pressure until the one-way clutch is engaged and thereafter the shift valve is changed over to a condition in which the hydraulic oil is discharged from the high-speed hydraulic engaging element.

摘要翻译： 变速器是与单向离合器协作建立低速传动系的类型。 在将液压油保持供给到低速液压接合元件的条件下，通过变速阀通过液压油供给建立高速传动系。 压力调节阀和液压油压力控制阀控制，增加或减少液压油对高速液压接合元件的供给压力。 初始阶段的变速控制器在从高速传动系向低速传动系变速的状态下保持变速阀在将液压油供给到高速液压 接合元件。 在这种情况下，液压油的供给压力降低，直到高速液压接合元件产生滑动。 液压油的供给压力保持在减压状态，直到单向离合器接合，然后将换档阀切换到液压油从高速液压接合元件排出的状态。