System and Method for Multiplexing Gear Engagement Control and Providing Fault Protection in a Toroidal Traction Drive Automatic Transmission
    37.
    发明申请
    System and Method for Multiplexing Gear Engagement Control and Providing Fault Protection in a Toroidal Traction Drive Automatic Transmission 审中-公开
    齿轮啮合控制和环形牵引力传动自动变速箱故障保护的系统与方法

    公开(公告)号:US20140066249A1

    公开(公告)日:2014-03-06

    申请号:US14076869

    申请日:2013-11-11

    IPC分类号: F16H15/00

    摘要: An apparatus for multiplexing gear engagement control in an automatic transmission is provided. At least two friction engagement devices are configured to selectively engage and disengage a different gear ratio of the transmission. A trim system is configured to selectively supply engagement and disengagement pressures to at least one fluid passageway. A first control valve is fluidly coupled directly to the at least one fluid passageway and directly to each of the at least two friction engagement devices. The first control valve is configured to selectively route the engagement and disengagement pressures through the first control valve directly to the at least two friction devices.

    摘要翻译: 提供了一种用于在自动变速器中复用齿轮啮合控制的装置。 至少两个摩擦接合装置构造成选择性地接合和分离变速器的不同齿轮比。 修剪系统构造成选择性地向至少一个流体通道提供接合和分离压力。 第一控制阀直接流体耦合到至少一个流体通道并直接连接至至少两个摩擦接合装置中的每一个。 第一控制阀构造成选择性地将接合和分离压力通过第一控制阀直接传递到至少两个摩擦装置。

    Electro-hydraulic control system for transmission with dual-area piston for torque-transmitting mechanism
    38.
    发明授权
    Electro-hydraulic control system for transmission with dual-area piston for torque-transmitting mechanism 有权
    用于扭矩传递机构的双面活塞传动电液控制系统

    公开(公告)号:US08052563B2

    公开(公告)日:2011-11-08

    申请号:US11856751

    申请日:2007-09-18

    IPC分类号: F16H31/00

    摘要: An electro-hydraulic control system is provided for a transmission with a torque-transmitting mechanism that has a dual area piston. When pressurized fluid is provided to a first of the two piston areas, the position of a spring-biased shift valve controls whether pressurized fluid communicates with the second piston area. A solenoid valve in fluid communication with the shift valve is energizable to direct pressurized fluid to the shift valve to urge the shift valve to the unstroked position to which the spring also urges. The shift valve may also be urged by pressurized fluid to the stroked position, but only when the solenoid valve is not energized. The spring maintains the shift valve in the unstroked position when pressurized fluid is directed to the shift valve to act both against and with the spring.

    摘要翻译: 为具有具有双面活塞的扭矩传递机构的变速器提供电液控制系统。 当加压流体被提供给两个活塞区域中的第一个时,弹簧偏置的换档阀的位置控制加压流体是否与第二活塞区域连通。 与换档阀流体连通的电磁阀可通电以将加压流体引导到换挡阀,以将换档阀推动到弹簧也促使的非行程位置。 换档阀也可以被加压流体推动到划线位置,但是仅当电磁阀未通电时。 当加压流体被引导到换挡阀以使弹簧与弹簧作用时,弹簧将换挡阀保持在非冲程位置。

    Plugged filter detection system
    39.
    发明授权
    Plugged filter detection system 有权
    堵塞过滤器检测系统

    公开(公告)号:US07611001B2

    公开(公告)日:2009-11-03

    申请号:US11416908

    申请日:2006-05-03

    IPC分类号: F16D25/12 B01D35/143

    CPC分类号: B01D35/143

    摘要: A plugged filter detection system includes a valve housed within a cavity defining an initial inlet for receiving fluid at an inlet pressure before fluid enters a filter, a final inlet for receiving fluid at an outlet pressure after the fluid exits the filter, and a switch port for directing fluid to a switch to activate the switch. The inlet pressure biases the valve in a first direction and the outlet pressure biases the valve in a second direction substantially opposing the first direction. The valve is movable from a first position to a second position to unblock the switch port, thereby allowing the switch to be activated when inlet pressure is greater than outlet pressure. A spring preferably biases the valve in the second direction, such that inlet pressure must be greater than outlet pressure by at least the spring constant to allow switch activation.

    摘要翻译: 堵塞式过滤器检测系统包括容纳在限定用于在流体进入过滤器之前以入口压力接收流体的初始入口的空腔,用于在流体离开过滤器之后以出口压力接收流体的最终入口和开关端口 用于将流体引导到开关以激活开关。 入口压力在第一方向上偏压阀,并且出口压力在基本上与第一方向相反的第二方向上偏压阀。 阀可以从第一位置移动到第二位置以解除开关端口,从而当入口压力大于出口压力时允许开关被启动。 弹簧优选地在第二方向上偏压阀,使得入口压力必须至少大于出口压力至少弹簧常数以允许开关活动。

    Electro-Hydraulic Control System for Transmission with Dual-Area Piston for Torque-Transmitting Mechanism
    40.
    发明申请
    Electro-Hydraulic Control System for Transmission with Dual-Area Piston for Torque-Transmitting Mechanism 有权
    用于扭矩传递机构的双面活塞传动电液控制系统

    公开(公告)号:US20090075772A1

    公开(公告)日:2009-03-19

    申请号:US11856751

    申请日:2007-09-18

    IPC分类号: F16H47/08 F16D33/06 G06F19/00

    摘要: An electro-hydraulic control system is provided for a transmission with a torque-transmitting mechanism that has a dual area piston. When pressurized fluid is provided to a first of the two piston areas, the position of a spring-biased shift valve controls whether pressurized fluid communicates with the second piston area. A solenoid valve in fluid communication with the shift valve is energizable to direct pressurized fluid to the shift valve to urge the shift valve to the unstroked position to which the spring also urges. The shift valve may also be urged by pressurized fluid to the stroked position, but only when the solenoid valve is not energized. The spring maintains the shift valve in the unstroked position when pressurized fluid is directed to the shift valve to act both against and with the spring.

    摘要翻译: 为具有具有双面活塞的扭矩传递机构的变速器提供电液控制系统。 当加压流体被提供给两个活塞区域中的第一个时,弹簧偏置的换档阀的位置控制加压流体是否与第二活塞区域连通。 与换档阀流体连通的电磁阀可通电以将加压流体引导到换挡阀,以将换档阀推动到弹簧也促使的非行程位置。 换档阀也可以被加压流体推动到划线位置,但是仅当电磁阀未通电时。 当加压流体被引导到换挡阀以使弹簧与弹簧作用时,弹簧将换挡阀保持在非冲程位置。