Control system for a continuously variable transmission
    1.
    发明授权
    Control system for a continuously variable transmission 失效
    无级变速器控制系统

    公开(公告)号:US4782934A

    公开(公告)日:1988-11-08

    申请号:US43

    申请日:1987-01-02

    摘要: A control system for a motor vehicle provided with a continuously variable transmission and a clutch for transmitting power of an engine to the transmission. The transmission has a transmission ratio control valve having ports and a spool for controlling the transmission ratio. A throttle position sensor is provided for detecting the load on an engine and for deciding a desired transmission ratio in accordance with the load. The clutch is automatically disengaged at low vehicle speed. When an accelerator pedal is depressed in order to re-accelerate the vehicle, the desired transmission ratio is increased to increase the speed of a drive pulley of the transmission so that the drive pulley speed equals the speed of the engine.

    摘要翻译: 一种用于机动车辆的控制系统,其具有无级变速器和用于将发动机的动力传递到变速器的离合器。 变速器具有具有端口的变速比控制阀和用于控制变速比的阀芯。 提供了一种节气门位置传感器,用于检测发动机上的负载并根据负载决定期望的传动比。 离合器在低车速下自动脱开。 当加速踏板被压下以便重新加速车辆时,期望的传动比被增加以增加变速器的驱动皮带轮的速度,使得驱动皮带轮速度等于发动机的速度。

    System for controlling the pressure of oil in a system for a
continuously variable transmission
    5.
    发明授权
    System for controlling the pressure of oil in a system for a continuously variable transmission 失效
    用于控制无级变速器系统中油压的系统

    公开(公告)号:US4674363A

    公开(公告)日:1987-06-23

    申请号:US885990

    申请日:1986-07-15

    申请人: Motohisa Miyawaki

    发明人: Motohisa Miyawaki

    摘要: A control system for a continuously variable transmission has a line pressure control valve having ports and a spool for controlling the line pressure of oil supplied to a cylinder of a pulley device to change the transmission ratio. The line pressure control valve has chambers. When the transmission ratio reaches a maximum value after disengagement of a clutch, a line pressure reducing signal generates. The signal is applied to the line pressure control valve to shift the spool thereof, so that the line pressure is reduced to a minimum value. By controlling the pressure of oil supplied to the chambers in accordance with a desired line pressure, the spool is shifted, so that the line pressure is controlled.

    摘要翻译: 一种用于无级变速器的控制系统具有一个具有端口的管路压力控制阀和一个用于控制提供给带轮装置的气缸的油的管路压力以改变传动比的阀芯。 管路压力控制阀具有室。 当离合器分离之后传动比达到最大值时,产生管路减压信号。 信号被施加到管路压力控制阀以使其阀芯移动,使得管路压力降低到最小值。 通过根据期望的管线压力控制供应到室的油的压力,阀芯被移动,从而控制管路压力。

    Control system for an infinitely variable transmission
    6.
    发明授权
    Control system for an infinitely variable transmission 失效
    无级变速器控制系统

    公开(公告)号:US4657522A

    公开(公告)日:1987-04-14

    申请号:US645937

    申请日:1984-08-30

    申请人: Motohisa Miyawaki

    发明人: Motohisa Miyawaki

    摘要: A control system for an infinitely variable belt-drive transmission comprises a primary pulley having a hydraulically shiftable disc, a secondary pulley having a hydraulically shiftable disc, a belt engaged with both pulleys, and a hydraulic circuit having a pump for supplying oil. A transmission ratio control valve is provided to be responsive to engine speed for controlling the oil and for shifting the disc of the primary pulley to change the transmission ratio, and a pressure regulator valve is provided to respond to the transmission ratio for increasing the pressure of the oil with an increase of the transmission ratio. A pickup is provided to produce pulses dependent on engine speed, and a electric circuit is responsive to the pulses for producing pulses. An electromagnetic valve is provided to respond to the pulses for draining the oil applied to the transmission ratio control valve thereby controlling the valve so as to provide at least two transmission ratio characteristics.

    摘要翻译: 用于无级变速皮带传动变速器的控制系统包括具有液压可移动盘的初级带轮,具有液压可移动盘的次级带轮,与两个带轮接合的带以及具有用于供应油的泵的液压回路。 提供传动比控制阀,以响应于用于控制油和用于使主滑轮的盘移动以改变传动比的发动机转速,并且提供压力调节阀以响应于增加压力的传动比 该油随着传动比的增加而增加。 提供拾取器以产生取决于发动机速度的脉冲,并且电路响应于用于产生脉冲的脉冲。 提供电磁阀以响应用于排放施加到变速比控制阀上的油的脉冲,从而控制阀,从而提供至少两个变速比特性。

    Control system of a continuously variable transmission for a four-wheel
motor vehicle
    7.
    发明授权
    Control system of a continuously variable transmission for a four-wheel motor vehicle 失效
    四轮电机车辆连续可变变速箱控制系统

    公开(公告)号:US5152191A

    公开(公告)日:1992-10-06

    申请号:US628169

    申请日:1990-12-14

    IPC分类号: B60K23/08 F16H61/662

    摘要: A belt drive continuously variable transmission of a four-wheel motor vehicle has a transmission ratio control valve which is operated in accordance with driven pulley speed. An analogous driven-pulley speed is calculated based on an analogous vehicle speed approximate to actual vehicle speed. In response to the analogous driven-pulley speed, the analogous driven pulley speed is used for operating the transmission ratio control valve instead of the driven pulley speed.

    摘要翻译: 四轮机动车辆的皮带传动无级变速器具有根据从动皮带轮速度操作的传动比控制阀。 基于近似于实际车辆速度的类似车速来计算类似的从动皮带轮速度。 响应于类似的从动皮带轮速度,类似的从动皮带轮速度用于操作变速比控制阀而不是从动皮带轮速度。

    Belt for a continuously variable transmission
    9.
    发明授权
    Belt for a continuously variable transmission 失效
    皮带用于无级变速器

    公开(公告)号:US4826473A

    公开(公告)日:1989-05-02

    申请号:US114454

    申请日:1987-10-28

    申请人: Motohisa Miyawaki

    发明人: Motohisa Miyawaki

    IPC分类号: F16G5/16 F16G1/22

    CPC分类号: F16G5/16

    摘要: A belt is formed by a plurality of metal elements which are assembled by a pair of endless carriers engaging with the elements at both lateral sides thereof. Each element has a plurality of protrusions at the front side thereof so as to engage with the rear side of an adjacent element. The protrusions are provided for appropriately deviating the belt at a tight side.

    摘要翻译: 带由多个金属元件形成,这些金属元件由在其两个侧面处与元件接合的一对环形支架组装。 每个元件在其前侧具有多个突起,以便与相邻元件的后侧接合。 提供突起用于在紧密的一侧适当地偏离带。