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公开(公告)号:US5251132A
公开(公告)日:1993-10-05
申请号:US651700
申请日:1991-02-05
申请人: Garth H. Bulgrien
发明人: Garth H. Bulgrien
IPC分类号: F16H61/00 , F16H61/06 , F16H61/684 , F16H61/70 , F16H5/42
CPC分类号: F16H61/061 , F16H2061/0087 , F16H61/684 , F16H61/70 , Y10T74/1926
摘要: In a powershift transmission system the output shaft and driveline unwind and then wind up during shifting under load as the torque applied to the shaft through a first clutch is reduced and the torque applied to the shaft through a second clutch is increased. The degree of winding or unwinding is dependent on the load being driven by the shaft and is manifested as an apparent increase or decrease in the rate of rotation of the output shaft as measured at the transmission end of the shaft. The rate of rotation of the transmission output shaft is sensed during shifting and the second clutch pressure is controlled in accordance with the sensed rate of rotation so that the second clutch pressure varies according to the load. The arrangement reduces sudden accelerations under no-load conditions but permits near optimum clutch pressures at heavier loads.
摘要翻译: 在功率变换传动系统中,输出轴和传动系统在通过第一离合器施加到轴上的扭矩减小并且通过第二离合器施加到轴的扭矩增加时,在负载变速期间松开然后卷起。 卷绕或退绕的程度取决于由轴驱动的负载,并且表现为在轴的传动端处测量的输出轴的旋转速度的明显增加或减小。 在变速期间感测到变速器输出轴的旋转速度,并且根据感测的转速来控制第二离合器压力,使得第二离合器压力根据负载而变化。 该装置在空载条件下减少了突然的加速度,但是在较重的载荷下允许接近最佳的离合器压力。
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公开(公告)号:US4991454A
公开(公告)日:1991-02-12
申请号:US526157
申请日:1990-05-21
申请人: Garth H. Bulgrien
发明人: Garth H. Bulgrien
IPC分类号: B60W30/18 , F16H37/04 , F16H59/08 , F16H59/42 , F16H59/46 , F16H59/50 , F16H59/56 , F16H59/68 , F16H61/00 , F16H61/02 , F16H61/06 , F16H61/682 , F16H61/684 , F16H61/70 , F16H63/02 , F16H63/42
CPC分类号: B60W30/18 , B60W10/02 , B60W10/10 , B60W30/1819 , F16H61/0246 , F16H61/0248 , F16H61/061 , B60W2540/14 , F16H2059/006 , F16H2059/0239 , F16H2059/088 , F16H2059/6807 , F16H2061/0087 , F16H2061/0216 , F16H2312/00 , F16H2312/02 , F16H2312/022 , F16H2312/08 , F16H2342/042 , F16H59/42 , F16H59/46 , F16H59/56 , F16H61/0059 , F16H61/0213 , F16H61/682 , F16H61/684 , F16H61/70 , F16H63/42 , F16H63/46 , Y10T74/19251 , Y10T74/2003
摘要: A control mechanism for an electronically controlled power shift transmission is disclosed wherein the shift pattern for the control mechanism includes an upshift and downshift path of movement for each of the forward, neutral, and reverse positions through which the control lever is movable. The control lever is biased toward a no-shift sub-position for each position of movement of the lever. A latching mechanism engageable when the control lever is in the neutral position does not restrict movement of the lever between the upshift and downshift subpositions.
摘要翻译: 公开了一种用于电子控制的动力换挡变速器的控制机构,其中控制机构的变速模式包括用于前后,后退和后退位置中的每一个的升档和降档运动路径,控制杆通过该档位可移动。 对于杠杆的每个移动位置,控制杆被朝向不移动副位置偏置。 当控制杆处于中立位置时可接合的闩锁机构不限制杠杆在升档和降档位置之间的移动。
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