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    Transmission for a vehicle
    92.
    发明授权
    Transmission for a vehicle 失效
    车辆变速箱

    公开(公告)号：US5186291A

    公开(公告)日：1993-02-16

    申请号：US768722

    申请日：1991-10-08

    Applicant: Lars-Gunnar Hedstrom ,  Bjorn Westman

    Inventor： Lars-Gunnar Hedstrom ,  Bjorn Westman

    IPC: F02B1/04 ,  F16H3/12 ,  F16H59/46 ,  F16H61/04

    CPC classification number: F16H3/12 ,  F16H61/0437 ,  F02B1/04 ,  F16H2003/123 ,  F16H59/46 ,  Y10T74/1926

    Abstract: A transmission for a vehicle comprises a mechanical stepped gearbox (6) in front of which a hydraulic torque converter (5) is arranged. The torque converter (5) comprises a turbine wheel (19) which is connected to a turbine shaft (21). An input shaft (25) of the gearbox (6) is connected in a drive power-transmitting manner to the turbine shaft (21). In addition, a brake (34) is connected to the turbine shaft (21) or the input shaft (25), in which respect, on starting-up, the input shaft (25) can be stopped in order to permit engagement of a starting gear without the need to produce drive power interruption by means of a conventional clutch. The brake (34) is also used when changing-up for synchronization of the gearbox (6) together with an electrical control unit (32) for engine regulation. This allows the gear-changing in a mechanical, unsynchronized stepped gearbox to be carried out in a simple manner.

    Abstract translation: PCT No.PCT / SE91 / 00083 Sec。 371日期1991年10月8日 102（e）日期1991年10月8日PCT 1991年2月8日PCT PCT。 公开号WO91 / 12443 日期：1991年8月22日。一种用于车辆的变速器包括机械级齿轮箱（6），其前面配置有液压变矩器（5）。 变矩器（5）包括连接到涡轮轴（21）的涡轮机叶轮（19）。 齿轮箱（6）的输入轴（25）以驱动动力传递方式连接到涡轮轴（21）。 此外，制动器（34）连接到涡轮机轴（21）或输入轴（25），在这方面，在启动时，可以停止输入轴（25），以允许接合 起动装置，而不需要通过常规离合器产生驱动电力中断。 当用于齿轮箱（6）的同步改变以及用于发动机调节的电气控制单元（32）时，制动器（34）也被使用。 这允许以简单的方式进行机械的，不同步的阶梯式齿轮箱中的换档。

    Double transition closed throttle downshift control in an automatic transmissions
    96.
    发明授权
    Double transition closed throttle downshift control in an automatic transmissions 失效
    自动变速器中双过渡关闭油门降档控制

    公开(公告)号：US4989477A

    公开(公告)日：1991-02-05

    申请号：US463719

    申请日：1990-01-11

    Applicant: Joseph H. Hunter ,  Kenneth B. Harmon

    Inventor： Joseph H. Hunter ,  Kenneth B. Harmon

    IPC: F16H59/38 ,  F16H59/46 ,  F16H61/00 ,  F16H61/06 ,  F16H61/08 ,  F16H61/21

    CPC classification number: F16H61/061 ,  F16H61/21 ,  F16H2059/385 ,  F16H2059/467 ,  F16H2061/0078 ,  F16H2061/0451 ,  Y10T477/693754 ,  Y10T477/693762 ,  Y10T74/1926

    Abstract: In an automatic transmission, a double transition closed throttle downshift to a target range requires the release of two off-going clutches and the engagement of two on-coming clutches. The shift is made in two stages. The first stage involves a first off-going clutch and a first on-coming clutch and effects an upshift to a third range having a speed ratio lower than both the initial range and the target range, so that a momentary input speed decrease occurs. The speed decrease is managed by a closed-loop control of the first on-coming clutch until the clutch reaches a synthronous speed for the third range. The second stage is a downshift from the third ratio to the second ratio by a second off-going clutch and a second on-coming clutch and results in a speed increase. The second on-coming clutch is also managed by a closed-loop control. In each case, the closed-loop control parameter is on-coming clutch slip speed which is controlled to a calculated slip speed profile.

    Abstract translation: 在自动变速器中，双档过渡关闭节气门减速至目标范围需要释放两个离合离合器和两个前进离合器的接合。 这个转变分为两个阶段。 第一级涉及第一离合离合器和第一先行离合器，并且实现升档至具有低于初始范围和目标范围的速度比的第三范围，从而发生瞬时输入速度降低。 速度降低是通过第一个来回离合器的闭环控制进行管理，直到离合器达到第三范围的合成速度为止。 第二级是通过第二离合离合器和第二接合离合器从第三比例降低到第二比例，并且导致速度增加。 第二个即将到来的离合器也由闭环控制来管理。 在每种情况下，闭环控制参数是即将到来的离合器滑差速度，其被控制到计算的滑动速度曲线。

    Variable positive drive transmission
    98.
    发明授权
    Variable positive drive transmission 失效
    可变正驱动传动

    公开(公告)号：US4958533A

    公开(公告)日：1990-09-25

    申请号：US357407

    申请日：1989-05-26

    Applicant: Roger Macpherson

    Inventor： Roger Macpherson

    IPC: F16D41/08 ,  F16H3/10

    CPC classification number: F16H3/10 ,  F16D41/088 ,  Y10T74/19242 ,  Y10T74/1926

    Abstract: A variable speed transmission includes parallel drive and driven shafts which mount respective series of intermeshing gears of progressively increasing gear ratio for selectively transmitting power from one shaft to the other. A series of two-way roller clutches are interposed between the driven shaft and respective gear members of the series of driven gears. The roller clutches are engageable for rotatively coupling the respective gear members to the driven shaft and are disengageable for permitting relative rotation between the respective gear members and the driven shaft. Each of the roller clutches includes a cam disk having a plurality of recesses formed in its peripheral surface and a roller retainer circumferentially supporting a plurality of rollers within respective recesses in the cam disk. A hydraulically controlled actuator is connected to each of the retainers for indexing the roller retainers together with the plurality of rollers between respective limit positions within the recesses. The actuating device includes an annular plate rotatively coupled to the roller retainer and angularly spaced vanes in communication with a pair of fluid supply ducts of a stationary hydraulic control housing. One of the supply ducts provides for indexing the roller retainer to one of the limit positions, and the other of the supply ducts provides for indexing the roller retainer to the other limit position.

    Abstract translation: 变速传动装置包括平行驱动轴和从动轴，其安装逐渐增加的齿轮比的相应系列啮合齿轮，用于选择性地将动力从一个轴传递到另一个轴。 从动轴与一系列从动齿轮的各个齿轮部件间插入有一系列的双向辊式离合器。 滚子离合器可接合以将各个齿轮构件可旋转地联接到从动轴，并且可脱开以允许各个齿轮构件和从动轴之间的相对旋转。 每个滚子离合器包括一凸轮盘，该凸轮盘具有形成在其圆周表面上的多个凹槽和一滚轮保持件，其周向地支撑在该凸轮盘的相应凹槽内的多个滚子。 液压控制的致动器连接到每个保持器，用于将辊保持器与多个辊一起分配在凹槽内的相应极限位置之间。 致动装置包括可转动地联接到滚子保持器的环形板和与静止液压控制壳体的一对流体供应管道连通的角度间隔的叶片。 供应管道中的一个提供用于将辊保持器分配到限位中的一个位置，另一个供应管道用于将辊保持器分度到另一极限位置。

    Process for the gear change of automatic or synchronized mechanic transmission of motor vehicles
    99.
    发明授权
    Process for the gear change of automatic or synchronized mechanic transmission of motor vehicles 失效
    机动车辆自动或同步机械传动换档过程

    公开(公告)号：US4930374A

    公开(公告)日：1990-06-05

    申请号：US252654

    申请日：1988-10-03

    Applicant: Sandor Simonyi ,  Laszlo Torocsik ,  Gyorgy Valoczi

    Inventor： Sandor Simonyi ,  Laszlo Torocsik ,  Gyorgy Valoczi

    IPC: B60W10/11 ,  B60W30/18 ,  F16H59/14 ,  F16H59/18 ,  F16H59/36 ,  F16H61/00 ,  F16H61/02

    CPC classification number: F16H61/0213 ,  F16H59/14 ,  F16H2061/0096 ,  F16H59/18 ,  F16H59/36 ,  Y10S477/901 ,  Y10S477/904 ,  Y10T477/635 ,  Y10T477/692 ,  Y10T477/693754 ,  Y10T74/1926

    Abstract: A process for effecting controlled gear change in a vehicle having a transmission capable of automated shifting. A control circuit is provided with memory functions storing values of torque available from the vehicle engine at various operative r.p.m. values and at various throttle positions. When the vehicle is in operation, throttle position is compared to the torque/throttle position memory to derive a signal representing available torque for the throttle position. Likewise, engine r.p.m. is compared to the related memory function to derive a signal representing the torque available at such r.p.m. These two available torque values are compared to derive a signal representing relative load on the engine. A further memory function stores predetermined comparative values of load level and r.p.m. at which shifting of the transmission should occur. When load level is below a predetermined value, and simultaneously the r.p.m. is above a predetermined value, an upshift of the transmission is called for. Downshifting of the transmission is called for whenever either the load value exceeds a predetermined comparative value or the r.p.m. value drops below a predetermined comparative value. Additional memory functions may be employed to store temporarily the conditions of the most recent downshift and using these conditions to modify the predetermined comparative values for the next subsequent upshift. This enables appropriate compensation to be made for the conditions that caused a downshift, e.g., normal deceleration of the vehicle, acceleration to overtake another vehicle, or increased loading by reason of ascending a grade.

    Abstract translation: 一种用于实现具有能够自动换档的变速器的车辆中受控制的变速的过程。 控制电路具有存储功能，存储车辆发动机以各种操作速度可用的扭矩值。 值和各种节气门位置。 当车辆操作时，将节气门位置与扭矩/节气门位置存储器进行比较，以导出表示节气门位置的可用转矩的信号。 同样，发动机转速 与相关的记忆功能进行比较，以得出表示在这种r.p.m下可用的扭矩的信号。 将这两个可用的扭矩值进行比较以得到表示发动机相对负载的信号。 另外的存储功能存储负载水平和r.p.m的预定比较值。 发生变速的位置。 当负载水平低于预定值时，同时r.p.m. 高于预定值，则需要传输的升档。 每当载荷值超过预定的比较值或r.p.m时，就要求减速传动。 值下降到预定比较值以下。 可以采用额外的记忆功能来临时存储最近的降档的条件，并使用这些条件来修改下一个随后的升档的预定的比较值。 这使得能够对引起降档的情况进行适当的补偿，例如车辆的正常减速，加速超过另一车辆，或由于升档而增加的负载。

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