Control mechanism for automatic transmission
    51.
    发明授权
    Control mechanism for automatic transmission 失效
    自动变速箱控制机构

    公开(公告)号:US5836852A

    公开(公告)日:1998-11-17

    申请号:US771135

    申请日:1996-12-20

    摘要: Uncomfortable travel of a vehicle due to engine brake actions during the travel of the vehicle in traffic is prevented without using an one-way clutch within a transmission mechanism. An automatic transmission is composed of rotational elements that are braked at the time of establishing low stages, a brake that brakes the rotational elements, and control systems which control the oil pressure of the hydraulic servo in the brake. A band brake that creates differences in application forces, using self-energizing and deenergizing actions, serves as the brake, which is set to have an area in which the oil pressure during the drive is lower than the oil pressure during the non-drive, by setting the self-energizing direction as a direction of rotation of the rotational element during the drive and the deenergizing direction as an opposite direction of rotation of the rotational element during the non-drive. The control systems have a supplying mechanism which supplies oil to the hydraulic servo of the band brake at an oil pressure that is lower than the oil pressure during the non-drive and is equal to or higher than the oil pressure during the drive.

    摘要翻译: 防止在车辆行驶期间由于发动机制动动作引起的车辆不舒适的行驶,而不需要在变速机构内使用单向离合器。 自动变速器由在制动低速时制动的旋转元件,制动旋转元件的制动器以及控制制动器中的液压伺服机构的油压的控制系统构成。 使用自通电和断电动作产生施加力差异的带式制动器用作制动器,其被设定为具有驱动期间的油压低于非驱动期间的油压的区域, 通过在驱动期间将作为旋转元件的旋转方向的自增力方向设定为在非驱动期间旋转元件的旋转方向。 控制系统具有供给机构,该供给机构在非驱动时的油压低于带式制动器的液压伺服机构,并且在驱动期间等于或高于油压。

    Automatic transmission control apparatus
    55.
    发明授权
    Automatic transmission control apparatus 失效
    自动变速器控制装置

    公开(公告)号:US5692990A

    公开(公告)日:1997-12-02

    申请号:US643303

    申请日:1996-05-08

    摘要: An automatic transmission control apparatus has a vehicle speed detector, an accelerator pedal operation detector, a brake pedal operation detector, a clutch hydraulic servo that is neutral-controlled, a brake hydraulic servo that is hill holding-controlled, and a control device for controlling the fluid pressure supplied to the two servos. The control device selectively changes the start timing of the fluid pressure supply control. If it is determined that the vehicle is stopped and that the vehicle is not on an uphill, the control device causes a pressure reducing device and a pressure supplying device to simultaneously start reducing the fluid pressure supply to the clutch servo and supplying fluid pressure to the brake servo, respectively. If it is determined that the vehicle is on an uphill, the control device causes the pressure supplying device to start supplying fluid pressure to the brake servo and, after a predetermined time period, causes the pressure reducing device to start reducing the fluid pressure supply to the clutch servo.

    摘要翻译: 一种自动变速器控制装置,具有车速检测器,加速器踏板操作检测器,制动踏板操作检测器,中性控制的离合器液压伺服机构,由山体保持控制的制动液压伺服机构,以及控制装置 提供给两个舵机的流体压力。 控制装置选择性地改变流体压力供应控制的开始定时。 如果确定车辆停止并且车辆不在上坡,则控制装置使减压装置和压力供应装置同时开始减小对离合器伺服器的流体压力供应并向 制动伺服。 如果确定车辆处于上坡,则控制装置使得压力供应装置开始向制动伺服供应流体压力,并且在预定时间段之后使得减压装置开始将流体压力供应减少到 离合器伺服。

    Automatic transmission control apparatus
    56.
    发明授权
    Automatic transmission control apparatus 失效
    自动变速器控制装置

    公开(公告)号:US5749802A

    公开(公告)日:1998-05-12

    申请号:US646467

    申请日:1996-05-08

    摘要: An automatic transmission control apparatus has first and second hydraulic servos for engaging forward and reverse driving friction engaging elements, respectively, a fluid pressure control unit, a range shift detector, and an electronic control unit. When the forward driving range is selected, the fluid pressure control unit supplies a forward driving range pressure to the hydraulic servo via a changeover valve operated by a signal pressure from a normal open-type solenoid valve, when the signal pressure is drained. When the reverse driving range is selected, the electronic control unit outputs a signal to magnetize the solenoid valve. The solenoid valve is thus turned on to discontinue the drain. The control apparatus thus prevents low pressure in the reverse driving range pressure to prevent delay of engagement of the clutch.

    摘要翻译: 一种自动变速器控制装置具有用于分别接合前进和后退驱动摩擦接合元件的第一和第二液压伺服机构,流体压力控制单元,量程换档检测器和电子控制单元。 当选择正向驱动范围时,当信号压力被排出时,流体压力控制单元通过由来自正常开式电磁阀的信号压力操作的转换阀向液压伺服机构供给正向行驶范围压力。 当选择反向驱动范围时,电子控制单元输出一个信号来磁化电磁阀。 因此,电磁阀被打开以中止排水。 因此,控制装置防止反向驱动范围压力中的低压,以防止离合器的接合延迟。

    Control system for automatic transmission
    57.
    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:US5908461A

    公开(公告)日:1999-06-01

    申请号:US657616

    申请日:1996-05-31

    摘要: A control system for an automatic transmission having a running status detector for detecting the running status of a vehicle including an input torque from an engine; a running resistance estimator for estimating a running resistance on the basis of the running status of the vehicle; a running resistance comparator for comparing the estimated running resistance and a preset reference value; and a shift characteristic changing device for changing shift characteristics in accordance with the comparison result of the running resistance comparator. The automatic transmission control system further has a temperature sensor for detecting a temperature relating to the temperature of the engine and a decision device for determining a specific engine running status, in which the output of the engine drops, on the basis of an output signal coming from the temperature sensor. The running resistance comparator changes the reference value in accordance with the determination of the decision device.

    摘要翻译: 一种用于自动变速器的控制系统,具有运行状态检测器,用于检测包括来自发动机的输入转矩的车辆的运行状态; 运行阻力估计器,用于基于车辆的运行状态来估计行驶阻力; 运行电阻比较器,用于比较估计的运行电阻和预设的参考值; 以及根据运行阻力比较器的比较结果改变换档特性的换档特性改变装置。 自动变速器控制系统还具有用于检测与发动机的温度有关的温度的温度传感器和用于根据输出信号来确定发动机的输出下降的特定发动机运转状态的判定装置 从温度传感器。 运行电阻比较器根据判定装置的判定来改变参考值。

    Automatic transmission
    59.
    发明授权
    Automatic transmission 失效
    自动变速器

    公开(公告)号:US5069657A

    公开(公告)日:1991-12-03

    申请号:US518174

    申请日:1990-05-03

    IPC分类号: F16H3/44 F16H57/08 F16H63/30

    CPC分类号: F16H57/08

    摘要: An automatic transmission comprising a torque converter and a change speed transmission having a plurality of planetary gearsets and friction elements is provided with an input shaft supported by a transmission case. On the input shaft is mounted a small-diameter first drum. In the first drum are mounted a first clutch having a clutch piston, friction plates, separate plates and a clutch hub. On the input shaft is further mounted a large diameter second drum, in which are disposed a second clutch having a clutch piston, friction plates, separate plates and a clutch hub.The friction plates and separate plates in the second drum are disposed radially outside on top of the friction plates and separate plates in the first drum.

    摘要翻译: 包括变矩器和具有多个行星齿轮组和摩擦元件的变速传动装置的自动变速器设置有由变速箱支撑的输入轴。 在输入轴上安装一个小直径的第一个鼓。 在第一滚筒中安装有具有离合器活塞,摩擦板,分离板和离合器毂的第一离合器。 在输入轴上还安装有大直径的第二鼓,其中设置有具有离合器活塞,摩擦板,分离板和离合器毂的第二离合器。 第二滚筒中的摩擦板和分离板径向地设置在摩擦板的顶部和第一滚筒中的分开的板上。

    Direct coupling clutch with a damper device for a fluid coupling
    60.
    发明授权
    Direct coupling clutch with a damper device for a fluid coupling 失效
    具有用于流体联轴器的阻尼装置的直接联接离合器

    公开(公告)号:US4716998A

    公开(公告)日:1988-01-05

    申请号:US856815

    申请日:1986-04-28

    IPC分类号: F16H45/02 F16D3/66

    摘要: A direct coupling clutch being assembled within a casing of a fluid coupling having an impeller mounted on the casing and a turbine supported on an output shaft of the fluid coupling. The direct coupling clutch includes a piston mounted slidably on a turbine hub in axial direction for engaging with and disengaging from a front cover of the casing and a damper device resiliently connecting the turbine hub and piston. The damper device includes an annular driven plate consisting of two guide plates secured concentrically with each other and having a first set and a second set of spaces arranged in double rows along two concentric circles, an annular drive plate having a set of openings arranged in a row along a first circle, a set of projections arranged in a row along a second circle, a first coil spring inserted in each of the first set of spaces and within each of the set of openings and a second coil spring inserted in each of the second set of spaces and between the projections. The first coil spring is continually compressed by the relative rotation of the drive and driven plates and the second coil spring having a greater spring constant than that of the first coil spring is compressed after the first coil spring has been compressed in a predetermined value.

    摘要翻译: 直接联接离合器组装在具有安装在壳体上的叶轮和支撑在流体联轴器的输出轴上的涡轮机的流体联轴器的壳体内。 直接联接离合器包括可沿轴向可滑动地安装在涡轮机毂上的活塞,用于与壳体的前盖接合和分离,以及弹性地连接涡轮机毂和活塞的阻尼装置。 阻尼器装置包括环形驱动板,环形驱动板由两个彼此同心固定的导向板组成,并具有第一组和沿着两个同心圆排列成双列的第二组空间,环形驱动板具有一组开口, 沿着第一圆的行,沿着第二圆排列成一排的一组突起,插入到所述第一组空间中的每一个中并且在所述一组开口中的每一个中的第一螺旋弹簧和插入到所述第一圆中的每一个中的第二螺旋弹簧 第二组空间和投影之间。 第一螺旋弹簧通过驱动和驱动板的相对旋转而被连续地压缩,并且具有比第一螺旋弹簧的弹簧常数大的弹簧常数的第二螺旋弹簧在第一螺旋弹簧被压缩到预定值之后被压缩。