Hill holding brake pressure as a function of hill gradient detected as a
function of acceleration in a control system for automatic transmission

    公开(公告)号:US5820515A

    公开(公告)日:1998-10-13

    申请号:US824345

    申请日:1997-03-26

    摘要: A control system for an automatic transmission having a hydraulic power transmission for transmitting the rotation of an engine to a gear shifter; a clutch to be applied, when a forward drive range is selected, for connecting the hydraulic power transmission and the gear shifter to one another; a one-way clutch to be locked, when the clutch is applied, for establishing a first forward speed of the gear shifter; a brake for locking the one-way clutch, when applied, to block the backward rotation of the output shaft of the gear shifter; a first hydraulic servo for applying the clutch when fed with an oil pressure; a second hydraulic servo for applying the brake when fed with an oil pressure; a stopping state detector that detects the stopping state of a vehicle by determining the vehicle speed is substantially 0, the accelerator pedal is in a released state and the foot brake pedal is depressed; a gradient detector that detects the gradient load of an uphill, as applied to the vehicle; and a controller that controls the oil pressure to be fed to the first and second hydraulic servos on the basis of the signals from the stopping state detector and the gradient detector. The controller includes a decision maker that determines whether the road is uphill, on the basis of the signal from the gradient detector; a pressure reducing device that reduces the oil pressure to be fed to the first hydraulic servo, to bring the clutch into a substantially released state; a feed device that feeds an oil pressure, as regulated on the basis of the gradient detector, to the second hydraulic servo, to apply the brake at an engaging extent according to the gradient load; and a device for executing the reduction of the feed oil pressure to the first hydraulic servo by the pressure reducer and the feed of the regulated oil pressure to the second hydraulic servo by the oil pressure feeder, if it is detected by the stopping state detector that the vehicle is in the stopping state and if it is determined by the decision maker that the road is uphill.

    Control device for automatic transmission
    22.
    发明授权
    Control device for automatic transmission 有权
    自动变速箱控制装置

    公开(公告)号:US08725343B2

    公开(公告)日:2014-05-13

    申请号:US13107236

    申请日:2011-05-13

    摘要: A control device for an automatic transmission that outputs a command signal to an actuator to control the automatic transmission. The control device configured with a main control section that receives a state of the automatic transmission, that determines an abnormality in the automatic transmission on the basis of the input state of the automatic transmission, and that outputs to the actuator a main control section command signal for controlling the automatic transmission so as to establish a predetermined shift speed when it is determined that an abnormality is occurring in the automatic transmission; and a monitoring section that determines an abnormality in the main control section and that outputs to the actuator a monitoring section command signal for causing the automatic transmission to establish a neutral state irrespective of the main control section command signal when it is determined that an abnormality is occurring in the main control section.

    摘要翻译: 一种用于自动变速器的控制装置,其将命令信号输出到致动器以控制自动变速器。 所述控制装置具有主控制部,所述主控部接收自动变速器的状态,所述自动变速器的状态根据所述自动变速器的输入状态来决定所述自动变速器的异常,并向所述致动器输出主控制部指令信号 用于控制自动变速器,以便当确定在自动变速器中发生异常时,建立预定的换档速度; 以及监视部,其判定所述主控制部的异常,并向所述致动器输出监视部的指令信号,所述监视部的指令信号,用于使所述自动变速器与所述主控制部的指令信号无关地确定为中立状态。 发生在主控制部分。

    Power transmitting device and vehicle having same mounted thereon
    23.
    发明授权
    Power transmitting device and vehicle having same mounted thereon 有权
    具有安装在其上的相同的动力传递装置和车辆

    公开(公告)号:US08454477B2

    公开(公告)日:2013-06-04

    申请号:US12999162

    申请日:2009-10-08

    IPC分类号: F16H61/00

    摘要: A power transmission configured with a mechanical pump that generates and deliver a fluid pressure to a clutch. An electromagnetic pump generates and delivers a fluid pressure to the clutch, and an accumulator connects the clutch and the electromagnetic pump, and accumulates fluid pressure acting there between. A switching valve selectively switches between connecting the mechanical pump side and the clutch in a fluid communicating manner and connecting the electromagnetic pump and the clutch in a fluid communicating manner. A valve drive portion that drives the switching valve so as to connect the mechanical pump side and the clutch when the mechanical pump is driving, and drives the switching valve so as to connect the electromagnetic pump and the clutch when the electromagnetic pump is driving in place of the mechanical pump.

    摘要翻译: 配备有机械泵的动力传动装置,其产生并向离合器输送流体压力。 电磁泵产生并向离合器输送流体压力,并且蓄能器连接离合器和电磁泵,并且累积在其间作用的流体压力。 切换阀选择性地在流体连通方式上连接机械泵侧和离合器之间切换,并以流体连通的方式连接电磁泵和离合器。 一种阀驱动部,其在机械泵驱动时驱动切换阀以连接机械泵侧和离合器,并且当电磁泵驱动就位时驱动切换阀以连接电磁泵和离合器 的机械泵。

    Power transmission device and vehicle having the same
    24.
    发明授权
    Power transmission device and vehicle having the same 有权
    动力传动装置和车辆具有相同的功能

    公开(公告)号:US08413783B2

    公开(公告)日:2013-04-09

    申请号:US12654623

    申请日:2009-12-28

    IPC分类号: F04B49/00 F16D25/12

    摘要: A power transmission device that includes a clutch that transmits power from a motor to an axle; a first pump that is driven by power from the motor to generate and output fluid pressure; a second pump that receives and is driven by a supply of electric power to generate and output fluid pressure; a line pressure generating valve that is operated by operation fluid input to an operation input port, and regulates fluid pressure output from the first pump to generate a line pressure for engaging the clutch; and a switching valve that switches between a first connection state and a second connection state.

    摘要翻译: 一种动力传递装置,包括将电动机从电动机传递到车轴的离合器; 第一泵,其由来自电动机的动力驱动以产生和输出流体压力; 第二泵,其接收并由电力供应来驱动以产生和输出流体压力; 线压发生阀,其通过输入到操作输入口的操作流体操作,并且调节从第一泵输出的流体压力,以产生用于接合离合器的管路压力; 以及在第一连接状态和第二连接状态之间切换的切换阀。

    Solenoid valve device
    25.
    发明授权
    Solenoid valve device 失效
    电磁阀装置

    公开(公告)号:US08312895B2

    公开(公告)日:2012-11-20

    申请号:US12656457

    申请日:2010-01-29

    摘要: A solenoid valve device includes a solenoid valve that has a solenoid portion, a valve element that drivingly slides using electromagnetic force generated by the solenoid portion and regulates and outputs fluid pressure supplied from a fluid pressure source, a spring that biases the valve element in the sliding direction, and a spring chamber that accommodates the spring; an accumulating portion that accumulates operation fluid; an intake check valve that permits the flow of operation fluid from the accumulating portion to the spring chamber; and a discharge check valve that permits the flow of operation fluid from the spring chamber to an operation destination different from the accumulating portion.

    摘要翻译: 电磁阀装置包括具有螺线管部分的电磁阀,利用由螺线管部分产生的电磁力驱动地滑动的阀元件,并调节并输出从流体压力源供给的流体压力,弹簧将阀元件 滑动方向和容纳弹簧的弹簧室; 积存作业流体的积存部; 进气止回阀,其允许操作流体从累积部分流到弹簧室; 以及排出止回阀,其允许操作流体从弹簧室流到与累积部不同的操作目的地。

    Power transmission device and vehicle having the same
    26.
    发明授权
    Power transmission device and vehicle having the same 有权
    动力传动装置和车辆具有相同的功能

    公开(公告)号:US08303468B2

    公开(公告)日:2012-11-06

    申请号:US12654624

    申请日:2009-12-28

    IPC分类号: F16H61/26

    摘要: A power transmission device that includes a clutch that transmits power from a motor to an axle; a first pump that is driven by power from the motor to generate and output fluid pressure; a second pump that receives and is driven by a supply of electric power to generate and output fluid pressure; a pressure regulating valve that regulates a pressure of operation fluid output from the first pump, and delivers at least a portion of operation fluid discharged in connection with the pressure regulation to a lubrication target for use as lubricant; and a switching valve that switches between a first connection state and a second connection state.

    摘要翻译: 一种动力传递装置,包括将电动机从电动机传递到车轴的离合器; 第一泵,其由来自电动机的动力驱动以产生和输出流体压力; 第二泵,其接收并由电力供应来驱动以产生和输出流体压力; 压力调节阀,其调节从所述第一泵输出的操作流体的压力,并将与所述压力调节相关联地排出的操作流体的至少一部分输送到用作润滑剂的润滑对象; 以及在第一连接状态和第二连接状态之间切换的切换阀。

    Solenoid valve device
    27.
    发明申请
    Solenoid valve device 失效
    电磁阀装置

    公开(公告)号:US20100243933A1

    公开(公告)日:2010-09-30

    申请号:US12656457

    申请日:2010-01-29

    IPC分类号: F16K31/02

    摘要: A solenoid valve device includes a solenoid valve that has a solenoid portion, a valve element that drivingly slides using electromagnetic force generated by the solenoid portion and regulates and outputs fluid pressure supplied from a fluid pressure source, a spring that biases the valve element in the sliding direction, and a spring chamber that accommodates the spring; an accumulating portion that accumulates operation fluid; an intake check valve that permits the flow of operation fluid from the accumulating portion to the spring chamber; and a discharge check valve that permits the flow of operation fluid from the spring chamber to an operation destination different from the accumulating portion.

    摘要翻译: 电磁阀装置包括具有螺线管部分的电磁阀,利用由螺线管部分产生的电磁力驱动地滑动的阀元件,并调节并输出从流体压力源供给的流体压力,弹簧将阀元件 滑动方向和容纳弹簧的弹簧室; 积存作业流体的积存部; 进气止回阀,其允许操作流体从累积部分流到弹簧室; 以及排出止回阀,其允许操作流体从弹簧室流到与累积部不同的操作目的地。

    Solenoid valve
    28.
    发明申请
    Solenoid valve 有权
    电磁阀

    公开(公告)号:US20100163360A1

    公开(公告)日:2010-07-01

    申请号:US12591600

    申请日:2009-11-24

    IPC分类号: F16D33/06 H01H47/00

    摘要: A solenoid valve device that includes a solenoid valve; a drive circuit that drives the solenoid section; a current sensor that detects a current applied to the solenoid section; and a control unit that controls, when the solenoid valve is served as the pressure control valve, the drive circuit by performing a feedback control based on the current detected by the current sensor so that a current in accordance with an output pressure command is applied to the solenoid section, and controls, when the solenoid valve is served as the solenoid pump, the drive circuit without performing the feedback control so that a pump current is applied to the solenoid section.

    摘要翻译: 一种电磁阀装置,包括电磁阀; 驱动所述螺线管部的驱动电路; 电流传感器,其检测施加到所述螺线管部分的电流; 以及控制单元,其通过基于由所述电流传感器检测到的电流进行反馈控制来控制所述电磁阀作为所述压力控制阀的驱动电路,使得根据输出压力指令的电流被施加到 螺线管部分,并且当电磁阀用作电磁泵时,控制驱动电路,而不进行反馈控制,使得泵电流被施加到螺线管部分。

    HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
    29.
    发明申请
    HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 有权
    液压控制装置自动变速器

    公开(公告)号:US20100162695A1

    公开(公告)日:2010-07-01

    申请号:US12629390

    申请日:2009-12-02

    IPC分类号: F16D25/10

    CPC分类号: F16H61/0021 F16H3/663

    摘要: A hydraulic control device for an automatic transmission, including: a hydraulic pressure source; a plurality of friction engagement elements; a line pressure regulating valve that regulates hydraulic pressure from the hydraulic pressure source to a predetermined line pressure; a plurality of operation pressure regulating valves that regulate the line pressure as operation pressure for a hydraulic servo operating a friction engagement element; a maximum pressure conducting circuit that feeds a maximum pressure, among the operation pressures, to the line pressure regulating valve, wherein the friction engagement elements are engaged and released to achieve a plurality of forward speeds and a reverse speed, and the line pressure regulating valve regulates the line pressure during forward travel based on the maximum operation pressure, and regulates the line pressure during reverse travel based on the operation pressure input from a specific operation pressure regulating valve.

    摘要翻译: 一种用于自动变速器的液压控制装置,包括:液压源; 多个摩擦接合元件; 线压力调节阀,其将从液压源的液压调节到预定的管路压力; 多个操作压力调节阀,其将作为操作摩擦接合元件的液压伺服系统的管路压力调节为操作压力; 最大压力传导电路,其将操作压力中的最大压力馈送到管路压力调节阀,其中所述摩擦接合元件被接合和释放以实现多个前进速度和反向速度,并且所述管路压力调节阀 基于最大操作压力来调节正向行驶期间的管路压力,并且基于从特定操作压力调节阀输入的操作压力来调节反向行驶期间的管路压力。

    Hydraulic circuit device
    30.
    发明授权
    Hydraulic circuit device 有权
    液压回路装置

    公开(公告)号:US08435159B2

    公开(公告)日:2013-05-07

    申请号:US13112004

    申请日:2011-05-20

    IPC分类号: F16H61/26

    摘要: A hydraulic circuit for supplying hydraulic pressure to frictional engagement elements in an automatic transmission including an oil passage connecting an output port through which a drive pressure is output, and a second signal pressure port, of a second clutch application relay valve, and an oil passage connecting an output port through which a modulator pressure is output and the second signal pressure port, are formed in a valve body and arranged such that it is possible to open the oil passage, as well as close the oil passage, with an oil passage closing member. With the hydraulic circuit it is possible to change a formed speed in response to a shift operation when a shift, after being operated from a travel position to a non-travel position, is returned again from the non-travel position, at a time of failure.

    摘要翻译: 一种液压回路,用于向自动变速器中的摩擦接合元件提供液压,该自动变速器包括连接第二离合器作用继动阀和第二离合器作用继动阀的第二信号压力端口的输出驱动压力输出口的油路 连接输出调节器压力的输出端口和第二信号压力端口,形成在阀体中并且布置成使得可以通过油通道闭合来打开油路以及关闭油通道 会员。 利用液压回路,当从行驶位置操作到非行驶位置之间的换档从非行驶位置再次返回时,可以响应于换档操作来改变形成的速度,在 失败。