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    Electro-hydraulic control system for speed-changing mechanism switchable under load
    3.
    发明授权
    Electro-hydraulic control system for speed-changing mechanism switchable under load 失效
    用于变速机构负载下可切换的电液控制系统

    公开(公告)号：US4026169A

    公开(公告)日：1977-05-31

    申请号：US593062

    申请日：1975-07-03

    Applicant: Willi Kuhnle ,  Heinz Wendler ,  Manfred Glaser ,  Harald Breisch

    Inventor： Willi Kuhnle ,  Heinz Wendler ,  Manfred Glaser ,  Harald Breisch

    IPC: F16H61/28 ,  F16H61/02 ,  F16H61/04 ,  F16H61/08 ,  F16H63/02 ,  F16H63/04 ,  F16H63/12 ,  F16H63/30 ,  B60K41/04 ,  F16H5/20 ,  F16H5/58 ,  F16H5/80

    CPC classification number: F16H61/0437 ,  B60K2702/02 ,  B60K2702/04 ,  F16H61/0248 ,  F16H61/08 ,  Y10T477/69387 ,  Y10T74/19251 ,  Y10T74/19274

    Abstract: An automotive transmission with three or four stages corresponding to as many forward speeds, established by the activation of respective hydraulic coupling elements via associated electrical valve-operating switches, includes an individual delay network in the energizing circuit of each valve-operating switch for modifying its response time in dependence on load and on the direction of shift. By this modification an upshift under load or a downshift under pull proceeds with substantially immediate activation of one coupling element upon deactivation of another coupling element, whereas under other circumstances (downshift under load or upshift under pull) an appreciable hiatus occurs between deactivation and activation to take advantage of the intervening speed change. Discrimination between load and pull depends on the accelerator position whereas upshifting and downshifting are distinguished either mechanically, with the aid of a manually operated lever, or electrically on the basis of the state of activation of a coupling element of an adjoining stage. The delay networks retard either the deactivation or the activation of the associated coupling elements, depending on whether the latter are of the slow-operating or the fast-operating type.

    Abstract translation: 具有三级或四级的汽车变速器，其对应于通过相关联的电动阀操作开关激活相应的液压联接元件所建立的尽可能多的前进速度，包括在每个阀操作开关的通电电路中的单独延迟网络，用于修改其 响应时间取决于载荷和换档方向。 通过这种修改，在负载下的升档或在拉下的降档将在另一个耦合元件停用时进行一个耦合元件的基本立即激活，而在其它情况下（在负载下降档或在拉动下升档），在停用和激活之间发生明显的中断 利用中间的速度变化。 负载和牵引之间的鉴别取决于加速器位置，而升档和降档在机械上通过手动操作的杠杆进行区分，或者基于邻接台的联接元件的启动状态来进行电气区分。 延迟网络根据后者是慢速操作还是快速操作类型来阻止相关联的耦合元件的去激活或激活。

    Transmission shift control device system
    7.
    发明授权
    Transmission shift control device system 失效
    变速箱换档控制装置系统

    公开(公告)号：US4041810A

    公开(公告)日：1977-08-16

    申请号：US658399

    申请日：1976-02-17

    Applicant: Kenneth B. Harmon ,  Ted M. McQuinn

    Inventor： Kenneth B. Harmon ,  Ted M. McQuinn

    IPC: F16H61/02 ,  B60K20060101 ,  B60K17/04 ,  F16H61/06 ,  F16H63/02 ,  F16H63/30 ,  B60K41/14

    CPC classification number: F16H61/0269 ,  B60W10/04 ,  B60W10/11 ,  B60W30/1819 ,  B60K2702/02 ,  B60K2702/04 ,  B60W2550/142 ,  F16H2059/663 ,  Y10T477/69362

    Abstract: An automatic multiratio drive transmission having an automatic shift control system with a speed and throttle position pressure controlled shift valve controlling shifts between the highest drive ratio and the next lower drive ratio. When the shift valve is in the lower drive ratio position, a normal speed pressure signal increasing with increasing speed acting on the shift valve overcomes an opposing bias force controlled by throttle pressure to upshift the shift valve to the higher drive ratio position at increasing upshift speeds for increased throttle positions and provides an upshift hysteresis force decreasing with increasing throttle positions to prevent shift cycling as the highest ratio is established in a short time period and after a longer time delay period reduces the normal speed related governor pressure in an amount equal to the upshift hysteresis force at full throttle so that the downshift speed is the same as the upshift speed at the full throttle position.

    Abstract translation: 一种具有自动变速控制系统的自动多速传动变速器，其具有速度和节气门位置压力控制换档阀，控制最高传动比和下一个较低传动比之间的移动。 当换档阀处于较低的驱动比位置时，作用在换档阀上的速度增加的正常速度压力信号克服了由节流压力控制的相反的偏压力，以便在增加的升档速度时将换档阀升档到较高的传动比位置 用于增加节气门位置，并提供升档滞后力随着节气门位置的增加而减小，以防止在短时间内建立最高比率时的换档循环，并且在更长的时间延迟时间之后，减小与正常速度相关的调速器压力等于 全速节气门升档滞后力，使得降档速度与全速节气门位置的升档速度相同。

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