System and method for controlling hydraulic system based on temperature
    1.
    发明授权
    System and method for controlling hydraulic system based on temperature 有权
    基于温度控制液压系统的系统和方法

    公开(公告)号:US08668042B2

    公开(公告)日:2014-03-11

    申请号:US13305811

    申请日:2011-11-29

    CPC classification number: F16H61/46 F16H59/72 F16H2059/6861

    Abstract: A hydraulic system includes a hydraulic transmission including a hydraulic pump configured to be coupled to a prime mover, a hydraulic motor configured to be coupled to an output shaft, and fluid lines coupling the hydraulic pump to the hydraulic motor to provide a fluid circuit providing flow communication between the hydraulic pump and the hydraulic motor, such that operation of the hydraulic pump provides fluid flow to the hydraulic motor, and the hydraulic motor supplies torque to the output shaft. A controller is configured to control operation of the hydraulic transmission. The controller is configured to receive signals indicative of pressure in the fluid circuit and reduce an output of the hydraulic pump when the pressure in the fluid circuit reaches a pressure level, and a rate of response of the reduction of the output of the hydraulic pump is varied based on a temperature of fluid in the fluid circuit.

    Abstract translation: 液压系统包括液压变速器,其包括构造成联接到原动机的液压泵,被配置为联接到输出轴的液压马达以及将液压泵连接到液压马达的流体管线,以提供流体回路, 液压泵和液压马达之间的连通,使得液压泵的操作向液压马达提供流体流动,并且液压马达向输出轴提供扭矩。 控制器被配置为控制液压变速器的操作。 控制器被配置为当流体回路中的压力达到压力水平时接收指示流体回路中的压力的​​信号并减小液压泵的输出,并且液压泵的输出的减小的响应速率是 基于流体回路中的流体的温度而变化。

    SYSTEM AND METHOD FOR CONTROLLING HYDRAULIC SYSTEM BASED ON TEMPERATURE
    2.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING HYDRAULIC SYSTEM BASED ON TEMPERATURE 有权
    基于温度控制液压系统的系统和方法

    公开(公告)号:US20130133972A1

    公开(公告)日:2013-05-30

    申请号:US13305811

    申请日:2011-11-29

    CPC classification number: F16H61/46 F16H59/72 F16H2059/6861

    Abstract: A hydraulic system includes a hydraulic transmission including a hydraulic pump configured to be coupled to a prime mover, a hydraulic motor configured to be coupled to an output shaft, and fluid lines coupling the hydraulic pump to the hydraulic motor to provide a fluid circuit providing flow communication between the hydraulic pump and the hydraulic motor, such that operation of the hydraulic pump provides fluid flow to the hydraulic motor, and the hydraulic motor supplies torque to the output shaft. A controller is configured to control operation of the hydraulic transmission. The controller is configured to receive signals indicative of pressure in the fluid circuit and reduce an output of the hydraulic pump when the pressure in the fluid circuit reaches a pressure level, and a rate of response of the reduction of the output of the hydraulic pump is varied based on a temperature of fluid in the fluid circuit.

    Abstract translation: 液压系统包括液压变速器,其包括构造成联接到原动机的液压泵,被配置为联接到输出轴的液压马达以及将液压泵连接到液压马达的流体管线,以提供流体回路, 液压泵和液压马达之间的连通,使得液压泵的操作向液压马达提供流体流动,并且液压马达向输出轴提供扭矩。 控制器被配置为控制液压变速器的操作。 控制器被配置为当流体回路中的压力达到压力水平时接收指示流体回路中的压力的​​信号并减小液压泵的输出,并且液压泵的输出的减小的响应速率是 基于流体回路中的流体的温度而变化。

    HYSTAT DRIVE SYSTEM HAVING COASTING FUNCTIONALITY
    3.
    发明申请
    HYSTAT DRIVE SYSTEM HAVING COASTING FUNCTIONALITY 有权
    具有彩色功能的HYSTAT驱动系统

    公开(公告)号:US20130104532A1

    公开(公告)日:2013-05-02

    申请号:US13470968

    申请日:2012-05-14

    Abstract: A drive system for a machine is disclosed. The drive system may have an engine, a pump driven by the engine to pressurize fluid, a motor connected to the pump via an inlet passage and an outlet passage, and a traction device driven by the motor. The drive system may also have an operator input device movable from a neutral position through a range to a maximum displaced position to affect a speed of the engine, and a controller in communication with the input device and at least one of the pump and motor. The controller may be configured to gradually adjust a displacement of the at least one of the pump and motor to slow the traction device over a period of time after the operator input device is returned to the neutral position.

    Abstract translation: 公开了一种用于机器的驱动系统。 驱动系统可以具有发动机,由发动机驱动以对流体加压的泵,经由入口通道和出口通道连接到泵的马达以及由马达驱动的牵引装置。 驱动系统还可以具有操作者输入装置,该操作者输入装置可以从空档位置移动到范围到最大位移位置,以影响发动机的速度,以及与输入装置和泵和马达中的至少一个通信的控制器。 控制器可以被配置为在操作者输入装置返回到中立位置之后的一段时间内逐渐调节泵和马达中的至少一个的位移以减慢牵引装置。

    METHOD AND APPARATUS FOR RETARDING AN ENGINE
    4.
    发明申请
    METHOD AND APPARATUS FOR RETARDING AN ENGINE 有权
    用于延迟发动机的方法和装置

    公开(公告)号:US20080207398A1

    公开(公告)日:2008-08-28

    申请号:US11961008

    申请日:2007-12-20

    Abstract: A method and system for retarding an engine of a machine is provided. The machine has a hydraulic pump driven by the engine, a motor driven by the hydraulic pump, and a fan driven by the motor. The method includes sensing the operating speed of the engine with an engine speed sensor. The method also includes operating the motor at a first pressure. The method also includes comparing the operating speed to a trigger speed. The method also includes operating the motor at a second pressure greater than the first pressure if the operating speed of engine exceeds the trigger speed by a predetermined value.

    Abstract translation: 提供一种用于延迟机器发动机的方法和系统。 该机具有由发动机驱动的液压泵,由液压泵驱动的电动机和由电动机驱动的风扇。 该方法包括用发动机转速传感器感测发动机的运行速度。 该方法还包括在第一压力下操作马达。 该方法还包括将操作速度与触发速度进行比较。 如果发动机的操作速度超过触发速度预定值,该方法还包括以大于第一压力的第二压力操作电动机。

    Hydraulic Power Control System and Method
    5.
    发明申请
    Hydraulic Power Control System and Method 审中-公开
    液压动力控制系统及方法

    公开(公告)号:US20130291527A1

    公开(公告)日:2013-11-07

    申请号:US13465536

    申请日:2012-05-07

    CPC classification number: F16D31/00 F16H61/4017 F16H61/421 F16H61/431

    Abstract: A method and apparatus for controlling a hydraulic power system that includes a hydraulic motor and a hydraulic pump configured to supply hydraulic fluid to the hydraulic motor is provided. A relief valve is provided that is configured to release hydraulic fluid from a location between the hydraulic pump and the hydraulic motor when a pressure of the hydraulic fluid exceeds a predetermined pressure. A controller is in communication with the hydraulic motor and the hydraulic pump. The controller is configured to determine a first hydraulic fluid flow across the relief valve and determine a desired maximum flow across the relief valve. The controller also can regulate one or both of the hydraulic pump and the hydraulic motor to control the first hydraulic fluid flow based on the desired maximum flow.

    Abstract translation: 提供了一种用于控制液压动力系统的方法和装置,其包括液压马达和被配置为向液压马达提供液压流体的液压泵。 提供安全阀,其构造成当液压流体的压力超过预定压力时,从液压泵和液压马达之间的位置释放液压流体。 控制器与液压马达和液压泵连通。 控制器被配置成确定穿过安全阀的第一液压流体流并且确定横跨溢流阀的期望最大流量。 控制器还可以调节液压泵和液压马达中的一个或两个,以基于期望的最大流量来控制第一液压流体流。

    Manual control device and method
    6.
    发明申请
    Manual control device and method 审中-公开
    手动控制装置及方法

    公开(公告)号:US20130229272A1

    公开(公告)日:2013-09-05

    申请号:US13412354

    申请日:2012-03-05

    CPC classification number: G05G9/047 G05G5/03 Y10T74/20201

    Abstract: A manual control device for a machine includes a handle having a variable damper configured to alter a stiffness thereof in response to a control signal. A displacement sensor provides a displacement signal indicative of the displacement of the handle. A controller is associated with the variable damper, the manual control device, the displacement sensor, and the actuator. The controller determines a then present operating state of the actuator and a command provided to the actuator based on the displacement signal, and provides the control signal to stiffen the variable damper such that the displacement of the handle is limited to an additional displacement of the handle that corresponds to a difference between the then present operating state of the actuator and a maximum allowable operating state of the actuator.

    Abstract translation: 一种用于机器的手动控制装置包括具有可变阻尼器的手柄,该可变阻尼器构造成响应于控制信号而改变其刚度。 位移传感器提供指示手柄位移的位移信号。 控制器与可变阻尼器,手动控制装置,位移传感器和致动器相关联。 控制器基于位移信号确定致动器的当前操作状态和提供给致动器的命令,并且提供控制信号以加强可变阻尼器,使得把手的位移被限制为手柄的附加位移 这对应于致动器的当前操作状态与致动器的最大允许操作状态之间的差异。

    Method and apparatus for retarding an engine
    9.
    发明授权
    Method and apparatus for retarding an engine 有权
    用于延迟发动机的方法和装置

    公开(公告)号:US07849688B2

    公开(公告)日:2010-12-14

    申请号:US11961008

    申请日:2007-12-20

    Abstract: A method and system for retarding an engine of a machine is provided. The machine has a hydraulic pump driven by the engine, a motor driven by the hydraulic pump, and a fan driven by the motor. The method includes sensing the operating speed of the engine with an engine speed sensor. The method also includes operating the motor at a first pressure. The method also includes comparing the operating speed to a trigger speed. The method also includes operating the motor at a second pressure greater than the first pressure if the operating speed of engine exceeds the trigger speed by a predetermined value.

    Abstract translation: 提供一种用于延迟机器发动机的方法和系统。 该机具有由发动机驱动的液压泵,由液压泵驱动的电动机和由电动机驱动的风扇。 该方法包括用发动机转速传感器感测发动机的运行速度。 该方法还包括在第一压力下操作马达。 该方法还包括将操作速度与触发速度进行比较。 如果发动机的操作速度超过触发速度预定值,该方法还包括以大于第一压力的第二压力操作电动机。

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