Lock-up control system for an automatic transmission
    2.
    发明授权
    Lock-up control system for an automatic transmission 失效
    自动变速器锁定控制系统

    公开(公告)号:US4640394A

    公开(公告)日:1987-02-03

    申请号:US730036

    申请日:1985-05-03

    IPC分类号: F16H61/14 F16H45/02 B60K41/28

    CPC分类号: F16H61/143 Y10T477/63525

    摘要: A lock-up control system for an automatic transmission including a torque converter coupled with an engine, a power transmitting gear arrangement controlled by a gear ratio control device in accordance with a shifting up or down signal, and a lock-up clutch provided for locking up the output shaft of the torque converter to the output shaft of the engine. The lock-up control system comprises lock-up operation control apparatus causing the lock-up clutch to be in its inoperative state when the gear ratio control device performs the control with the shifting up or down signal, and lock-up command device for preventing the lock-up operation control apparatus from causing the lock-up clutch to be in its inoperative state until a predetermined reductive variation in the speed of the output shaft of the torque converter arises after the shifting up signal is supplied to the gear ratio control device under the condition in which the lock-up clutch is in operation.

    摘要翻译: 一种用于自动变速器的锁定控制系统,其包括与发动机耦合的变矩器,根据换档或减速信号由齿轮比控制装置控制的动力传递齿轮装置和锁定离合器 将变矩器的输出轴上升到发动机的输出轴。 锁定控制系统包括锁定操作控制装置,当齿轮比控制装置利用上移或下移信号进行控制时,使锁止离合器处于其不工作状态,以及防止锁定指令装置 锁止操作控制装置使得锁止离合器处于其不工作状态,直到在变速信号被提供给变速比控制装置之后才出现转矩变换器的输出轴的速度的预定的减小变化 在锁止离合器运行的条件下。

    Kickdown control for a motor vehicle automatic transmission with two
stage kickdown
    3.
    发明授权
    Kickdown control for a motor vehicle automatic transmission with two stage kickdown 失效
    一个机动车自动变速器的起动控制,两级降档

    公开(公告)号:US4569253A

    公开(公告)日:1986-02-11

    申请号:US655711

    申请日:1984-09-28

    摘要: A vehicle automatic transmission including a torque converter, a multiple stage transmission gear mechanism connected with the torque converter and a hydraulic control circuit for automatically selecting one of gear stages of the transmission gear mechanism. The hydraulic control circuit includes a kickdown control device which functions to shift down the gear mechanism when the engine control foot pedal is substantially fully depressed. Depending on the vehicle running condition, the kickdown control device shifts down the gear mechanism by two gear stages. The hydraulic circuit includes control circuit which functions to shift down the gear mechanism at first by one gear stage and then by a further one stage in sequence when a two stage shift down is required.

    摘要翻译: 一种车辆自动变速器,包括变矩器,与变矩器连接的多级变速齿轮机构和用于自动选择变速齿轮机构的齿轮级之一的液压控制回路。 液压控制回路包括一个降档控制装置,当发动机控制脚踏板基本上被完全按压时,起降控制装置用于使齿轮机构向下移动。 根据车辆行驶状态,降档控制装置将齿轮机构向下移动两档。 该液压回路包括控制电路,其功能是首先减速一档齿轮级,然后在需要两级换档时依次进一步下降一级。

    Two stage kickdown control system for a motor vehicle automatic
transmission
    4.
    发明授权
    Two stage kickdown control system for a motor vehicle automatic transmission 失效
    用于机动车辆自动变速器的两级起降控制系统

    公开(公告)号:US4563917A

    公开(公告)日:1986-01-14

    申请号:US655723

    申请日:1984-09-28

    摘要: A vehicle automatic transmission including a torque converter, a multiple stage transmission gear mechanism connected with the torque converter and a hydraulic control circuit for automatically selecting one of gear stages of the transmission gear mechanism. The hydraulic control circuit includes a kickdown control device which functions to shift down the gear mechanism when the engine control foot pedal is substantially fully depressed. Depending on the vehicle running condition, the kickdown control device shifts down the gear mechanism by two gear stages. The hydraulic circuit includes control circuit which functions to shift down the gear mechanism at first by one gear stage and then by a further one stage after a certain time delay when a two stage shift down is required.

    摘要翻译: 一种车辆自动变速器,包括变矩器,与变矩器连接的多级变速齿轮机构和用于自动选择变速齿轮机构的齿轮级之一的液压控制回路。 液压控制回路包括一个降档控制装置,当发动机控制脚踏板基本上被完全按压时,起降控制装置用于使齿轮机构向下移动。 根据车辆行驶状态,降档控制装置将齿轮机构向下移动两档。 该液压回路包括控制电路,其功能是在需要两级换档时,首先减速齿轮机构一档齿轮级,然后进一步下降一级。

    Four-wheel drive vehicle
    5.
    发明授权
    Four-wheel drive vehicle 失效
    四轮驱动车

    公开(公告)号:US5005663A

    公开(公告)日:1991-04-09

    申请号:US263212

    申请日:1988-10-27

    摘要: A vehicle equipped with four-wheel drive has a transfer case including a center-differential which delivers driving power to both front and rear axle assemblies when needed and is shiftable between a two-wheel and a four-wheel drive mode of operation and between a differential-locked and a differential-unlocked drive mode of operation. A free wheeling drive mechanism with a clutch member is incorporated in an output shaft of an axle differential in association with wheels non-driven in the two-wheel drive mode of operation and is adapted to disconnect when the vehicle is in the two-wheel drive mode of operation. A controller causes a forced drive mode shift of the center-differential from the four-wheel differential-underlined drive mode of operation either to the four-wheel differential-locked or to the two-wheel drive mode of operation when the disconnection of the free-wheeling drive mechanism is detected while the vehicle is in the four-wheel differential-unlocked drive mode of operation.

    摘要翻译: 装备有四轮驱动的车辆具有传送箱,其包括中心差速器,其在需要时向前轴组件和后轴组件提供驱动力,并且可在两轮和四轮驱动操作模式之间以及 差分锁定和差分解锁驱动操作模式。 与轮式差速器的输出轴相结合,具有离合器构件的自由轮驱动机构与在两轮驱动操作模式下未被驱动的车轮相结合,并且适于当车辆处于两轮驱动时断开 操作模式。 控制器将中心差速器的强制驱动模式从四轮差速下划线驱动操作模式移动到四轮差速器锁定或两轮驱动运行模式,当断开自由 当车辆处于四轮差速器解锁驱动操作模式时,检测到 - 驱动机构。