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40 条记录 (耗时 0.018 秒)

    Lock-up control for device torque converter
    2.
    发明授权
    Lock-up control for device torque converter 有权
    装置变矩器的锁定控制

    公开(公告)号：US06419059B1

    公开(公告)日：2002-07-16

    申请号：US09688243

    申请日：2000-10-16

    申请人： Hisao Nobu ,  Tatsuo Wakahara

    发明人： Hisao Nobu ,  Tatsuo Wakahara

    IPC分类号： F16H6114

    CPC分类号： F16H57/04 ,  F16H61/143 ,  F16H2045/021

    摘要： A lock-up control device controls a lock-up clutch in a torque converter. The lock-up clutch is engaged by supplying a lock-up control pressure. The torque converter transmits torque via oil in a torque converter chamber when the lock-up clutch is disengaged, and transmits torque directly when the lock-up clutch is engaged. In the lock-up state, the oil pressure in the torque converter chamber is decreased by discharging oil in the torque converter chamber. By providing a circuit which leads oil discharged from the torque converter chamber to a lubricating part of the transmission, the balance between the inflowing oil amount and outflowing oil amount is improved, and oil insufficiency is prevented.

    摘要翻译： 锁定控制装置控制变矩器中的锁止离合器。 锁止离合器通过提供锁定控制压力接合。 当锁止离合器分离时，变矩器在变矩器室中通过油传递扭矩，并且当锁止离合器接合时，转矩直接传递。 在锁定状态下，通过在变矩器室中排出油来减小变矩器室中的油压。 通过设置将从变矩器室排出的油引导到变速器的润滑部的回路，能够提高流入油量与流出油量之间的平衡，防止油不足。

    Lock-up control device for torque converter
    3.
    发明授权
    Lock-up control device for torque converter 有权
    变矩器锁止控制装置

    公开(公告)号：US06374973B1

    公开(公告)日：2002-04-23

    申请号：US09688212

    申请日：2000-10-16

    申请人： Hisao Nobu ,  Tatsuo Wakahara

    发明人： Hisao Nobu ,  Tatsuo Wakahara

    IPC分类号： F16H6114

    CPC分类号： F16H61/143

    摘要： A lock-up control device comprises an inlet circuit which supplies oil to a torque converter chamber, an outlet circuit which discharges oil from the torque converter chamber, a signal output circuit which outputs a signal pressure according to a required engaging capacity of a lock-up clutch, and a lock-up control valve which outputs a lock-up control pressure according to the signal pressure from the signal output device. A lock-up control pressure which is fed back is input to the lock-up control valve so as to decrease the lock-up control pressure, and the pressure of the inlet circuit and pressure of the outlet circuit are input to the lock-up control valve so as to increase the lock-up control pressure. In this way, the pressure in the converter chamber is accurately reflected, and the lock-up control pressure is controlled so that a pressure differential between the lock-up control pressure and the torque converter chamber is a desired value.

    摘要翻译： 一种锁定控制装置，包括向变矩器室供给油的入口回路，从变矩器室排出油的出口回路，输出信号压力的信号输出电路，该信号输出电路根据锁定 - 以及锁定控制阀，其根据来自信号输出装置的信号压力输出锁定控制压力。 反馈的锁定控制压力被输入到锁止控制阀，以便减小锁定控制压力，并且将入口回路的压力和出口回路的压力输入到锁定 控制阀，以增加锁定控制压力。 以这种方式，转换器室中的压力被精确地反射，并且控制锁定控制压力，使得锁定控制压力和变矩器室之间的压力差是期望值。

    Downshift control for automatic transmission
    4.
    发明授权
    Downshift control for automatic transmission 失效
    降档控制自动变速箱

    公开(公告)号：US5085105A

    公开(公告)日：1992-02-04

    申请号：US485889

    申请日：1990-02-28

    申请人： Tatsuo Wakahara ,  Kazuyoshi Iwanaga ,  Shigeru Ishii

    发明人： Tatsuo Wakahara ,  Kazuyoshi Iwanaga ,  Shigeru Ishii

    IPC分类号： F16H61/04 ,  F16H59/24 ,  F16H59/42 ,  F16H59/44 ,  F16H59/46 ,  F16H59/70 ,  F16H61/02 ,  F16H61/06 ,  F16H61/08 ,  F16H61/18

    CPC分类号： F16H61/061 ,  Y10T477/693754 ,  Y10T477/693762

    摘要： A downshift control in an automatic transmission is disclosed wherein magnitude of servo activating hydraulic fluid pressure is temporarily decreased as a function of vehicle speed when the automatic transmission effects a downshift from a current gear ratio to a new gear ratio. Owing to this arrangement, a fluid operated frictional device associated with the current gear ratio is released quickly without any lag to allow quick increase in engine speed during the downshift with the throttle fully opened at a high vehicle speed, i.e., a power-on downshift at high vehicle speed.

    摘要翻译： 公开了一种自动变速器中的降档控制，其中当自动变速器从当前变速比降低到新的变速比时，伺服启动液压流体压力的大小作为车辆速度的函数暂时降低。 由于这种布置，与当前齿轮比相关联的流体操作的摩擦装置被快速释放而没有任何滞后，从而允许在降档时快速增加发动机转速，同时节气门以高车速完全打开，即开启降档 在高车速。

    Hydraulic-pressure control system for four-wheel drive vehicle with hydraulic-pressure operated transfer clutch
    5.
    发明授权
    Hydraulic-pressure control system for four-wheel drive vehicle with hydraulic-pressure operated transfer clutch 失效
    具有液压传动离合器的四轮驱动车辆液压控制系统

    公开(公告)号：US5875865A

    公开(公告)日：1999-03-02

    申请号：US600254

    申请日：1996-02-12

    申请人： Tatsuo Wakahara ,  Kenichiro Murakami

    发明人： Tatsuo Wakahara ,  Kenichiro Murakami

    IPC分类号： B60K17/348 ,  B60K17/342 ,  B60K17/344 ,  B60K17/346 ,  B60K17/35 ,  B60K23/08

    CPC分类号： B60K17/35 ,  B60K23/0808 ,  B60K17/342 ,  B60K17/3467

    摘要： A hydraulic-pressure control system for a four-wheel drive vehicle with a hydraulic-pressure operated transfer clutch, which is responsive to a controlled clutch pressure applied thereto to distribute a driving torque passing from a transmission between main drive wheels and auxiliary drive wheels, comprises a pilot-operated directional control valve connected to the transfer clutch for cutting off a supply of hydraulic fluid of the controlled clutch pressure to the transfer clutch and for directing hydraulic fluid of the controlled clutch pressure to the transfer clutch. The system includes a clutch pressure control valve provided upstream of the directional control valve, which pressure control valve is responsive to an external pilot pressure for producing the controlled clutch pressure, and a duty-ratio controlled solenoid valve for decreasingly adjusting the external pilot pressure to be output to the pressure-reduction valve in accordance with an increase in a duty ratio. A controller is provided for forcibly outputting a duty-cycle controlled exciting current of a predetermined high duty ratio such as 100% to the duty-ratio controlled solenoid valve to reduce the controlled clutch pressure to a low pressure level (preferably a minimum clutch pressure) when the directional control valve is maintained at the cut-off position in case of 4L range wherein the transmission is loaded heavier.

    摘要翻译： 一种用于具有液压操作传递离合器的四轮驱动车辆的液压控制系统，其响应于施加到其上的受控离合器压力以分配从主驱动轮和辅助驱动轮之间的变速器传递的驱动扭矩， 包括连接到所述转移离合器的先导操作方向控制阀，用于将所述受控离合器压力的液压流体供给到所述转移离合器，并将所述受控离合器压力的液压流体引导至所述转移离合器。 该系统包括设置在方向控制阀的上游的离合器压力控制阀，该压力控制阀响应于用于产生受控离合器压力的外部先导压力，以及用于逐渐调节外部先导压力的占空比控制电磁阀 根据占空比的增加将其输出到减压阀。 提供了一种控制器，用于强制地向占空比控制的电磁阀输出预定高占空比例如100％的占空比受控激励电流，以将受控离合器压力降低到低压级（优选最小离合器压力） 当在4L范围内方向控制阀保持在切断位置时，其中变速器被装载得更重。

    Lock-up control system for automatic transmission
    10.
    发明授权
    Lock-up control system for automatic transmission 失效
    锁定控制系统，用于自动变速箱

    公开(公告)号：US5651752A

    公开(公告)日：1997-07-29

    申请号：US417045

    申请日：1995-04-04

    申请人： Tatsuo Wakahara ,  Koichi Hayasaki

    发明人： Tatsuo Wakahara ,  Koichi Hayasaki

    IPC分类号： F02D29/00 ,  B60W10/04 ,  B60W10/10 ,  B60W10/11 ,  F02D41/04 ,  F16H59/18 ,  F16H61/14 ,  F16H61/21 ,  F16H45/00

    CPC分类号： F16H61/143 ,  F16H2045/0294 ,  F16H2059/186 ,  F16H61/21 ,  Y10T477/635 ,  Y10T477/679 ,  Y10T477/753 ,  Y10T477/79

    摘要： A lock-up controller of a lock-up control system reads-in a vehicle speed V, a throttle opening degree TVO, an engine speed Ne, and a turbine speed Kt from sensors and outputs a fuel-out command and a fuel-supply restart command to an engine controller, to operate a lock-up clutch in a torque converter of an automatic transmission for an automotive vehicle in an accelerator-off (coasting) state of the vehicle. The lock-up control system makes it possible to realize locking-up of the torque converter providing an improved fuel consumption ratio of the engine and a large braking force from the engine, even when a vehicle speed increases due to running down a downward slope while the accelerator-off state continues, or when an up-shifting speed change occurs due to the accelerator-off state.

    摘要翻译： 锁定控制系统的锁定控制器从传感器读取车速V，节气门开度TVO，发动机转速Ne和涡轮转速Kt，并输出燃油输出指令和燃料供给 重新启动命令到发动机控制器，以在车辆的加速器（滑行）状态下的机动车辆的自动变速器的变矩器中操作锁止离合器。 锁定控制系统使得可以实现变矩器的锁定，从而提供发动机的改进的燃料消耗率和来自发动机的大的制动力，即使当车辆速度由于沿向下的斜坡下降而增加时， 加速器关闭状态继续，或者当由于加速器关闭状态而发生升档速度变化时。