Control system for automatic transmission
    81.
    发明授权
    Control system for automatic transmission 失效
    自动变速器控制系统

    公开(公告)号:US5547436A

    公开(公告)日:1996-08-20

    申请号:US428551

    申请日:1995-04-25

    摘要: A control system for an automatic transmission in a vehicle powertrain including an engine and a fluid coupling for transmitting the rotation of an engine to the transmission, the transmission having a clutch which is applied responsive to selection of a forward running range and a hydraulic servo for applying the clutch responsive to an oil pressure. The control system includes a control unit for controlling the oil pressure to the hydraulic servo; an input torque detector for detecting the input torque to be inputted to the transmission; and a specific state detector for detecting satisfaction of a set of specific starting conditions including: (1) that the forward running range has been selected, (2) that the vehicle is stopped and (3) that the engine is in an idling state. The control unit sets the oil pressure to the hydraulic servo to correspond to the input torque at the instant of detection of satisfaction the specific starting conditions, and includes: a first pressure-reducer for abruptly reducing the oil pressure of the hydraulic servo to a set oil pressure immediately before the release of the clutch is started; and a second pressure-reducer for gradually reducing the oil pressure of the hydraulic servo, which has been reduced to the set oil pressure by the first pressure-reducer.

    摘要翻译: 一种用于车辆动力系统中的自动变速器的控制系统,包括发动机和用于将发动机的旋转传递到变速器的流体联轴器,所述变速器具有响应于向前行驶范围的选择而施加的离合器和用于 响应于油压而施加离合器。 控制系统包括用于控制液压伺服机构的油压的控制单元; 输入转矩检测器,用于检测要输入到变速器的输入转矩; 以及用于检测特定起动条件的满足的特定状态检测器,包括:(1)已经选择了前进行驶范围,(2)车辆停止,(3)发动机处于空转状态。 控制单元将液压伺服系统的油压设定为与特定起动条件满足时的检测时刻的输入转矩对应,包括:将液压伺服机构的油压突然降低到一组的第一减压器 开始释放离合器之前的油压; 以及用于逐渐降低由第一减压器降低到设定油压的液压伺服机构的油压的第二减压器。

    Transmission case
    82.
    发明授权
    Transmission case 失效
    传动箱

    公开(公告)号:US07444901B2

    公开(公告)日:2008-11-04

    申请号:US10403509

    申请日:2003-04-01

    IPC分类号: F16H57/02

    摘要: A transmission case is provided with a housing enclosing a clutch and/or torque converter connected to an engine, and a shifting mechanism case enclosing a shifting mechanism in an oil-tight state that is connected to the housing. A focus for stress resulting from an impact load acting on the transmission case is formed as a frangible portion in the housing. Thus, damage to the transmission from an excessive load is limited to the housing, and by absorbing the impact from that damage, damage to the shifting mechanism case is prevented and oil leakage from the transmission case is avoided.

    摘要翻译: 变速器壳体设置有壳体,其包围连接到发动机的离合器和/或变矩器,以及换档机构壳体,其包围连接到壳体的油密封状态的换档机构。 由作用在变速器壳体上的冲击载荷产生的应力的焦点形成为壳体中的易碎部分。 因此,由于负载过大而对变速器的损坏被限制在壳体上,并且通过吸收来自该损坏的冲击,防止了变速机构壳体的损坏,并且避免了变速器壳体的漏油。

    Automatic transmission
    85.
    发明授权
    Automatic transmission 有权
    自动变速器

    公开(公告)号:US06723018B2

    公开(公告)日:2004-04-20

    申请号:US10038625

    申请日:2002-01-08

    IPC分类号: F16H362

    摘要: A speed-reducing gear unit is provided for causing a reduced-speed rotation output member to have a reduced rotation that is slower than rotation of an input shaft. The reduced-speed rotation output member is switched between a reduced-speed rotation state and a free rotation state by rotation state switching means. The reduced-speed rotation of the reduced-speed rotation output member is selectively transferred to fourth and first elements of a speed-changing dual planetary gear unit via first and third control clutches. The rotation of the input shaft is transferred to a second element via a second control clutch. Rotations of the first and second elements are selectively restricted by first and second control brakes. A third element is connected to an output shaft. This makes it possible to provide a high-efficiency automatic transmission that achieves seven or more forward gear ratios so as to allow optimal extraction of engine performance in a high vehicle speed region and reduce the vehicle speed change at the time of a gear shift and therefore provide a good feeling, by adding gear speeds including a locked-up speed at a high gear speed side so that adjacent gear ratios are closer to each other.

    摘要翻译: 提供了一种减速齿轮单元,用于使减速旋转输出构件具有比输入轴的旋转慢的减小的旋转。 减速旋转输出构件通过旋转状态切换装置在减速旋转状态和自由旋转状态之间切换。 低速旋转输出构件的减速旋转通过第一和第三控制离合器选择性地传递到变速双行星齿轮单元的第四和第一元件。 输入轴的旋转通过第二控制离合器传递到第二元件。 第一和第二元件的旋转由第一和第二控制制动器选择性地限制。 第三元件连接到输出轴。 由此,能够提供实现七档以上前进档位的高效率​​的自动变速器,从而能够最佳地提高高速车速区域的发动机性能,并减少变速时的车速变化, 提供良好的感觉,通过在高速档侧增加包括锁定速度的齿轮速度,使得相邻的齿轮比彼此更接近。

    Control system for automatic transmission
    86.
    发明授权
    Control system for automatic transmission 失效
    自动变速器控制系统

    公开(公告)号:US5741201A

    公开(公告)日:1998-04-21

    申请号:US645958

    申请日:1996-05-10

    摘要: A control system for an automatic transmission includes: an input clutch applied, responsive to selection of a forward running range, to transmit the rotation of an engine to a transmission mechanism; a hydraulic servo for selectively applying/releasing the input clutch; a stop state detector for detecting a stop state of a vehicle in terms of the selection of the forward running range, lack of vehicle speed, the release of an accelerator pedal and the depression of a brake pedal; starting operation detector for detecting an operation to start the vehicle in motion; application state detector for detecting the application state of the input clutch; and a controller for controlling oil pressure fed to the hydraulic servo on the basis of signals coming from the various detectors. If arrival at a predetermined released state is decided, the hydraulic servo is fed with a summed oil pressure which is the total of an initial application oil pressure and a release oil pressure, to initiate piston movement and start of engagement of the input clutch, and the oil pressure is thereafter gradually raised from the summed pressure on the basis of a predetermined pressure relationship. If a failure to arrive at the predetermined released state is decided, the oil pressure is gradually raised on the basis of the predetermined pressure relationship from the oil pressure which is fed to the hydraulic servo when a starting operation is detected.

    摘要翻译: 一种用于自动变速器的控制系统,包括:输入离合器,响应于选择正向行驶范围,将发动机的旋转传递到变速机构; 用于选择性地施加/释放输入离合器的液压伺服机构; 根据前进行驶范围的选择,车速的不足,油门踏板的释放以及制动踏板的按下来检测车辆的停止状态的停止状态检测器; 启动操作检测器,用于检测运动中启动车辆的操作; 用于检测输入离合器的应用状态的应用状态检测器; 以及控制器,用于根据来自各种检测器的信号来控制供给液压伺服的油压。 如果确定达到预定的释放状态,则液压伺服机构被馈送总和的油压,其是初始施加油压和释放油压的总和,以启动输入离合器的活塞移动和开始接合,以及 油压随后基于预定的压力关系从总和压力逐渐升高。 如果确定未到达预定释放状态,则当检测到启动操作时,基于从供给到液压伺服机构的油压的预定压力关系,油压逐渐升高。

    Clutch assembly
    87.
    发明授权
    Clutch assembly 失效
    离合器总成

    公开(公告)号:US07017724B2

    公开(公告)日:2006-03-28

    申请号:US10450569

    申请日:2003-09-10

    IPC分类号: F16D13/52 B60K17/00

    CPC分类号: F16F15/13469 F16D25/0638

    摘要: A clutch assembly for starting a vehicle without using a torque converter has a simple structure yet providing high reliability. In the clutch assembly, a clutch and a damper device are housed in a housing connected to a crank shaft of an engine. A boss serving as an output member is connected to an input shaft of an automatic transmission. An output of the engine is connected/disconnected to/from the input shaft upon engagement/disengagement of the clutch. The clutch includes a friction member and a piston fit oil tightly with the housing so as to apply pressure to the friction member. One end of the damper device is connected to a clutch hub, and the other end is connected to the output member. The clutch and the damper device are aligned on the axis of the housing.

    摘要翻译: 用于在不使用变矩器的情况下起动车辆的离合器组件具有简单的结构,但提供高可靠性。 在离合器组件中,离合器和阻尼器装置容纳在与发动机的曲轴连接的壳体中。 用作输出构件的凸台连接到自动变速器的输入轴。 当离合器接合/分离时,发动机的输出与输入轴相连/断开。 离合器包括摩擦构件和与壳体紧密配合的活塞,以便向摩擦构件施加压力。 阻尼装置的一端连接到离合器毂,另一端连接到输出构件。 离合器和阻尼器装置在壳体的轴线上对准。

    Control apparatus for automatic transmission
    88.
    发明授权
    Control apparatus for automatic transmission 有权
    自动变速箱控制装置

    公开(公告)号:US06712735B2

    公开(公告)日:2004-03-30

    申请号:US10114241

    申请日:2002-04-03

    IPC分类号: F16H6140

    摘要: The invention eliminates the feeling of two-phase speed-change operations by causing a speed-change operation to proceed continuously when the speed-change operation is performed through two-phase control of engagement and release of four engagement elements. An automatic transmission is such that a predetermined speed-change operation is achieved through a pre-phase speed-change operation in which a first engagement element and a third engagement element are released and engaged respectively and through a post-phase speed-change operation in which a second engagement element and a fourth engagement element are released and engaged respectively. A control apparatus has a torque control capability for adjusting an input torque of a transmission during the pre-phase speed-change control, and ensures continuous changes in the input speed during the pre-phase and post-phase speed-change operations through adjustment of the input torque (torque reduction) to prevent bluntness from being caused between the pre-phase and post-phase speed-change operations.

    摘要翻译: 本发明通过使四个接合元件的接合和释放的两相控制进行变速操作时,通过使变速操作连续进行来消除两相变速操作的感觉。 自动变速器是这样的,即通过预分相变速操作实现预定的变速操作,其中第一接合元件和第三接合元件分别被释放和接合,并且通过后相变速操作 第二接合元件和第四接合元件分别被释放和接合。 控制装置具有用于在预相变速控制期间调整变速器的输入转矩的转矩控制能力,并且通过调整前期和后期变速操作来确保在前期和后期变速操作期间的输入速度的连续变化 输入转矩(转矩降低),以防止在前相和后相变速操作之间引起钝化。

    One-way clutch and a supporting structure
    89.
    发明授权
    One-way clutch and a supporting structure 失效
    单向离合器和支撑结构

    公开(公告)号:US06648106B2

    公开(公告)日:2003-11-18

    申请号:US09887471

    申请日:2001-06-26

    IPC分类号: F16D6300

    摘要: To ensure durability of a one-way clutch, by reducing surface pressures applied to side bearings, a one-way clutch has end bearings that are disposed between an outer race and an inner race and that maintain concentricity between the races. In a supporting structure wherein one of the outer race and the inner race is fitted to a stationary member and the other race is fitted to a rotational member, a clearance of a fitting portion between the stationary member and one of the races is narrower than a clearance between the rotational member and the other race. A load resulting from whirling of the rotational member is absorbed by the greater clearance, and a high load resulting from radial movements of the race fitted to the stationary member and a weight of the race is supported by the stationary member. Thus, loads applied to the end bearings are reduced.

    摘要翻译: 为了确保单向离合器的耐久性,通过减小施加到侧面轴承的表面压力,单向离合器具有设置在外圈和内圈之间并且保持座圈之间的同心度的端部轴承。 在其中外座圈和内座圈中的一个安装到固定构件并且另一个座圈安装到旋转构件的支撑结构中,固定构件和其中一个座圈之间的配合部分的间隙比 旋转构件和另一种族之间的间隙。 由于旋转构件的旋转产生的负载被更大的间隙吸收,并且由固定构件的座圈和座圈的重量的径向运动引起的高负载被固定构件支撑。 因此,减小了施加到端部轴承的负载。

    Planetary carrier
    90.
    发明授权
    Planetary carrier 有权
    行星载体

    公开(公告)号:US06422971B1

    公开(公告)日:2002-07-23

    申请号:US09679288

    申请日:2000-10-06

    IPC分类号: F16H5708

    CPC分类号: F16H1/28 F16H57/082

    摘要: A planetary carrier supports a plurality of short pinions and long pinions and includes a first supporting wall supporting one ends of the short pinions and the long pinions, second supporting walls supporting the other ends of the short pinions, third supporting walls supporting the other ends of the long pinions, first connecting walls connecting the first supporting wall and the second supporting walls, pairs of second connecting walls facing each other, arranged on both sides of each long pinion in the rotational direction of the carrier, and connecting the second supporting walls and the third supporting walls, and third connecting walls connecting each pair of the second connecting walls to each other on at least one of the radial inner side and the radial outer side of each long pinion.

    摘要翻译: 行星齿轮架支撑着多个短小齿轮和长小齿轮,并且包括支撑短小齿轮和长小齿轮的一端的第一支撑壁,支撑短小齿轮的另一端的第二支撑壁,支撑短小齿轮的另一端的第三支撑壁 连接第一支撑壁和第二支撑壁的长小齿轮,第一连接壁,彼此面对的成对的第二连接壁,布置在沿着承载件的旋转方向的每个长小齿轮的两侧,并且连接第二支撑壁和 第三支撑壁和在每个长小齿轮的径向内侧和径向外侧中的至少一个上将每对第二连接壁彼此连接的第三连接壁。