Hydraulic control apparatus for belt-and-pulley type continuously
variable transmission, incorporating fail-safe protective means
    1.
    发明授权
    Hydraulic control apparatus for belt-and-pulley type continuously variable transmission, incorporating fail-safe protective means 失效
    用于皮带式无级变速器的液压控制装置,包括故障安全保护装置

    公开(公告)号:US5052247A

    公开(公告)日:1991-10-01

    申请号:US564140

    申请日:1990-08-08

    摘要: An apparatus for controlling a vehicle continuously variable transmission, including a directional control valve having a first spool movable between a shift-down and a shift-up position, a flow control valve including a second spool movable between a flow-restricting and a non-restricting position, and a first and a second solenoid-operated valve for applying an actuating pressure to the first and second spools. The directional and flow control valves and the solenoid-operated valves are adapted such that the first and second spools are moved toward the shift-up and flow restricting positions, respectively, when the actuating pressure is not applied to the spools, or when solenoid coils of the two solenoid-operated valves are both off. The directional control valve may have a shift-down chamber for receiving a pilot pressure to move the first spool to the shift-down position when a failure of one of the solenoid coils exists while the vehicle speed is lower than a predetermined limit.

    摘要翻译: 一种用于控制车辆无级变速器的装置,包括方向控制阀,该方向控制阀具有可在换档和升档位置之间移动的第一阀芯,流量控制阀包括可在流量限制阀和非限制阀之间移动的第二阀芯, 以及用于向第一和第二线轴施加致动压力的第一和第二电磁阀。 方向和流量控制阀和电磁阀适于使得当驱动压力不施加到线轴上时,或者当电磁线圈(3)被施加时,第一和第二线轴分别朝着换档和限流位置移动 的两个电磁阀都关闭。 当车速低于预定极限时,方向控制阀可以具有用于接收先导压力以将第一阀芯移动到减速位置的换档室,当一个电磁线圈存在时,存在一个电磁线圈的故障。

    Hydraulic control apparatus for vehicle transmission system,
incorporating valves for reverse inhibit valve
    3.
    发明授权
    Hydraulic control apparatus for vehicle transmission system, incorporating valves for reverse inhibit valve 失效
    用于车辆传动系统的液压控制装置,用于反向禁止阀的阀门

    公开(公告)号:US5086672A

    公开(公告)日:1992-02-11

    申请号:US562113

    申请日:1990-08-02

    IPC分类号: F16H61/16 F16H61/662

    摘要: A hydraulic control apparatus for a vehicle power transmission for transmitting power from an engine to a drive wheel a reversing mechanism having a reverse position established by a hydraulic actuator. The apparatus includes a reverse inhibit valve disposed in a hydraulic line leading to the hydraulic actuator and having a reverse inhibit position for inhibiting the mechanism from being placed in the reverse position and a non-inhibit position for permitting the mechanism to be placed in the reverse position. The apparatus uses a first and a second pilot pressure generating device for producing a first and a second pilot pressure, respectively. A relay valve is provided for producing a first hydraulic signal for establishing the reverse inhibit position of the reverse inhibit valve, based on one of combinations of operating states of the two pilot pressure generating devices, and a second hydraulic signal for establishing the non-inhibit position, based on the other combinations.

    Hydraulic control apparatus for vehicle power transmitting system having
continuously variable transmission
    4.
    发明授权
    Hydraulic control apparatus for vehicle power transmitting system having continuously variable transmission 失效
    具有无级变速器的车辆动力传递系统液压控制装置

    公开(公告)号:US5052980A

    公开(公告)日:1991-10-01

    申请号:US476527

    申请日:1990-02-07

    IPC分类号: F16H61/662

    CPC分类号: F16H61/66259

    摘要: A hydraulic control apparatus for a power transmitting system for an automotive vehicle having a continuously variable transmission which has a first and a second shaft, a pair of variable-diameter pulleys provided on the first and second shafts, a belt connecting the pulleys, and a pair of hydraulic actuators for changing diameters of the pulleys, wherein a tension of the belt is controlled by regulating an actuating pressure in a driven side actuator of the hydraulic actuators which is provided on a driven one of the two shafts. The apparatus includes a pressure regulating valve which has a valve spool for regulating the actuating pressure in the driven side actuator, and a pressure-reducing chamber for receiving a pressure-reducing pilot pressure for biasing the spool for reducing the actuating pressure. The apparatus further includes a pilot pressure generator for generating the pressure-reducing pilot pressure to be applied to the pressure-reducing chamber, when the detected vehicle running speed exceeds a predetermined value.

    摘要翻译: 一种用于机动车辆的动力传递系统的液压控制装置,其具有无级变速器,其具有第一和第二轴,设置在第一和第二轴上的一对可变直径滑轮,连接滑轮的皮带和 一对用于改变皮带轮直径的液压致动器,其中通过调节设置在两个轴中的驱动的一个轴上的液压致动器的从动侧致动器中的致动压力来控制带的张力。 该装置包括压力调节阀,其具有用于调节从动侧致动器中的致动压力的阀芯,以及用于接收减压先导压力的减压室,用于使阀芯偏压以降低致动压力。 该装置还包括先导压力发生器,用于当检测到的车辆行驶速度超过预定值时产生要施加到减压室的减压先导压力。

    Hydraulic control apparatus for vehicle power transmitting system having
fluid coupling incorporating lock-up clutch
    5.
    发明授权
    Hydraulic control apparatus for vehicle power transmitting system having fluid coupling incorporating lock-up clutch 失效
    具有包含锁止离合器的流体联轴器的车辆动力传递系统的液压控制装置

    公开(公告)号:US5050715A

    公开(公告)日:1991-09-24

    申请号:US476350

    申请日:1990-02-07

    IPC分类号: F16H61/14 F16H61/662

    摘要: A hydraulic control apparatus for a vehicle power transmitting system having a fluid coupling equipped with a lock-up clutch, and a transmission to which power is transmitted from an engine of the vehicle through the fluid coupling. The fluid coupling has an engaging chamber and a releasing chamber for engaging and releasing the lock-up clutch. The apparatus includes a discharge passage communicating with the engaging chamber, for normally draining the engaging chamber to a drain, to thereby normally release the lock-up clutch, and a rapid release valve connected to the discharge passage. The rapid release valve operates to by-pass the discharge passage to the drain therethrough, for thereby rapidly draining the engaging chamber to rapidly release the lock-up clutch. A lock-up pressure regulating valve is provided for regulating a lock-up clutch pressure applied to the fluid coupling, normally to a first value, and upon operation of the rapid release valve, to a second value higher than the first value.

    摘要翻译: 一种用于具有装配有锁止离合器的流体联轴器的车辆动力传递系统的液压控制装置,以及通过流体联轴器从车辆的发动机传递动力的变速器。 流体联接器具有接合室和用于接合和释放锁止离合器的释放室。 该装置包括与接合室连通的排出通道,用于将接合室正常排放到排水口,从而正常地释放锁止离合器,以及连接到排放通道的快速释放阀。 快速释放阀用于将排出通道旁通至排水通道,从而快速排出接合室以快速释放锁止离合器。 提供了一种锁定压力调节阀,用于将通常达到第一值并且在快速释放阀操作时,将施加到流体联轴器的锁止离合器压力调节到高于第一值的第二值。

    Hydraulic control apparatus for vehicle power transmitting system having
continuously variable transmission
    6.
    发明授权
    Hydraulic control apparatus for vehicle power transmitting system having continuously variable transmission 失效
    具有无级变速器的车辆动力传递系统液压控制装置

    公开(公告)号:US5006093A

    公开(公告)日:1991-04-09

    申请号:US476601

    申请日:1990-02-07

    IPC分类号: F16H61/662

    摘要: A hydraulic control apparatus for a vehicle power transmitting system having a continuously variable transmission having a first and a second shaft, a pair of variable-diameter pulleys provided on the shafts, a belt connecting the pulleys, and two hydraulic actuators for changing diameters of the pulleys. The apparatus includes a directional control valve for supplying a fluid from a pressure line to one of the two actuators while discharging the fluid from the other actuator, a first fluid passage connected to the directional control valve, for primarily supplying the fluid from the pressure line to a driving side actuator of the two actuators which is provided on a driving one of the first and second shafts, a second fluid passage connected to the directional control valve, for primarily supplying the fluid from the pressure line to a driven side actuator of the hydraulic actuators, and a flow restrictor for restricting a flow of the fluid through the first fluid passage so that a fluid flow resistance of the first fluid passage is higher than a fluid flow resistance of the second fluid passage.

    摘要翻译: 一种用于具有无级变速器的车辆动力传递系统的液压控制装置,所述无级变速器具有第一和第二轴,设置在所述轴上的一对可变直径滑轮,连接所述滑轮的皮带以及用于改变所述第二轴的直径的两个液压致动器 滑轮 该装置包括方向控制阀,用于将来自压力管线的流体从两个致动器中的一个供应,同时从另一致动器排出流体;连接到方向控制阀的第一流体通道,用于主要从压力管线 所述两个致动器的驱动侧致动器设置在所述第一和第二轴的驱动一个上;第二流体通道,其连接到所述方向控制阀,用于主要将流体从所述压力线供应到所述第二和第二轴的从动侧致动器; 液压致动器和用于限制流体流过第一流体通道的流量限制器,使得第一流体通道的流体阻力高于第二流体通道的流体流动阻力。

    Transmission shift control apparatus arranged to perform compulsory shift-down action of continuously variable transmission
    7.
    发明授权
    Transmission shift control apparatus arranged to perform compulsory shift-down action of continuously variable transmission 有权
    布置成执行无级变速器的强制换档动作的变速器变速控制装置

    公开(公告)号:US06672981B2

    公开(公告)日:2004-01-06

    申请号:US09988351

    申请日:2001-11-19

    IPC分类号: F16H6300

    摘要: A shift control apparatus for controlling a continuously variable transmission device including a continuously variable transmission mechanism having rotary elements and operable to transmit a rotary motion of a drive power source of an automotive vehicle to a drive wheel of the automotive vehicle, such that a speed ratio of said mechanism is continuously variable, the shift control apparatus includes a power-transmission-state determining device for determining whether the mechanism is placed in a non-power-transmitting state, a speed-ratio determining device for determining whether the mechanism is placed in a lowest-speed position, a rotation-stop detecting device for determining whether the rotary elements are at rest, and a compulsory-speed-ratio-change implementing device for effecting a compulsory shift-down action of the mechanism toward the lowest-speed position when the mechanism is placed in the non-power-transmitting state while the mechanism is not placed in the lowest-speed position and while the rotary elements of the mechanism are at rest.

    摘要翻译: 一种变速控制装置,用于控制包括具有旋转元件的无级变速机构的无级变速传动装置,其可操作以将机动车辆的驱动动力源的旋转运动传递到机动车辆的驱动轮,使得速比 所述机构是连续变化的,所述变速控制装置包括用于判断机构是否处于非动力传递状态的动力传递状态判定装置,用于判定机构是否被置于 最低速位置,用于确定旋转元件是否处于静止状态的旋转停止检测装置,以及用于实现机构朝向最低速位置的强制下降动作的强制变速比变更实施装置 当该机构处于非发电状态时,该机构未被置于最低端 并且机构的旋转元件处于静止状态。

    Fluid coupling
    8.
    发明授权
    Fluid coupling 失效
    流体联轴器

    公开(公告)号:US5279118A

    公开(公告)日:1994-01-18

    申请号:US893422

    申请日:1992-06-08

    IPC分类号: F16D33/00 F16D33/20 F16H45/02

    摘要: Herein disclosed is a fluid coupling which comprises: a pump impeller connected to the output shaft of an engine; and a turbine runner for transferring a working fluid to and from the pump impeller. On the pump impeller and the turbine runner, respectively, there are arranged a pump blade and a turbine blade without any inner core for guiding the flow of the working fluid inside of the pump impeller and the turbine runner. By bending at least one of the working fluid outlet side of the pump blade and the working fluid inlet side of the turbine blade, there is formed transfer limit means for limiting the transfer of the working fluid when the fluid coupling is in a stalling state.

    摘要翻译: 这里公开了一种流体联轴器,其包括:连接到发动机的输出轴的泵叶轮; 以及用于将工作流体传送到泵叶轮和从泵叶轮传送工作流体的涡轮转轮。 在泵叶轮和涡轮转子上分别设有泵叶片和没有任何内芯的涡轮叶片,用于引导泵叶轮和涡轮转轮内的工作流体的流动。 通过弯曲泵叶片的工作流体出口侧和涡轮叶片的工作流体入口侧中的至少一个,形成有传递限制装置,用于在流体联接器处于停止状态时限制工作流体的传送。

    Fluid coupling
    9.
    发明授权
    Fluid coupling 失效
    流体联轴器

    公开(公告)号:US5313794A

    公开(公告)日:1994-05-24

    申请号:US893421

    申请日:1992-06-08

    摘要: A fluid coupling has capacity coefficients in forward and reverse driving which can be arbitrarily selected to comply with demand for a wide variety of characteristics in accordance with the intended application. Pump blades Bp and/or turbine blades Bt are inclined in the direction of rotation of pump impeller P and a turbine runner T with inclination angles .theta..sub.2p and .theta..sub.2t with respect to normal lines Lp and Lt of the pump and turbine, respectively. Transfer of working fluid between the pump impeller P and the turbine runner T is thereby smoothened or suppressed in accordance with the inclination angles .theta..sub.2p and .theta..sub.2t, and thus the capacity coefficients in both forward and reverse driving can be arbitrarily selected and fixed.

    摘要翻译: 流体联轴器具有正向和反向驱动中的容量系数,其可以任意选择以符合根据预期应用的各种特征的需求。 泵叶片Bp和/或涡轮叶片Bt分别相对于泵和涡轮机的法线Lp和Lt在泵叶轮P和涡轮机转轮T的旋转方向上倾斜,倾斜角度θ2p和θ2t。 因此,在泵叶轮P和涡轮转轮T之间的工作流体的传递根据倾斜角度θ2p和θ2t平滑或抑制,因此可以任意选择和固定正向和反向驱动两者中的容量系数。