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    HYDRAULIC ACCUMULATOR HEALTH MONITOR
    21.
    发明申请
    HYDRAULIC ACCUMULATOR HEALTH MONITOR 审中-公开
    液压蓄能器健康监护仪

    公开(公告)号：US20140060030A1

    公开(公告)日：2014-03-06

    申请号：US13908012

    申请日：2013-06-03

    Applicant: Caterpillar Inc.

    Inventor： Pengfei Ma ,  Dayao Chen ,  Randal Peterson

    IPC: E02F9/12

    CPC classification number: E02F9/123 ,  E02F9/2025 ,  E02F9/2217 ,  E02F9/2296 ,  F15B1/024 ,  F15B1/033 ,  F15B1/24 ,  F15B19/005 ,  F15B2201/31 ,  F15B2201/505 ,  F15B2201/51 ,  F15B2211/625 ,  F15B2211/6306 ,  F15B2211/6653 ,  F15B2211/7058 ,  F15B2211/855 ,  F15B2211/857 ,  F15B2211/87

    Abstract: A system and method to diagnose the operational health of a hydraulic accumulator are provided. The system can include a hydraulic accumulator selectively coupled to a hydraulic actuator, such as a swing motor. The accumulator can be charged by movement of the actuator. A pressure sensor can be associated with the accumulator to determine an accumulator pressure. A controller can be connected to the pressure sensor. The controller can determine a charge curve based on a relationship between an actuator operational parameter associated with the actuator movement and the accumulator pressure. The controller can compare the charge curve to a previously defined charge curve or range to determine an error between the charge curve and the previously defined charge curve or range. The degree of the error can be associated with the operational health of the accumulator, and if too large, the operator may be notified of the status.

    Abstract translation: 提供了一种用于诊断液压蓄能器的操作健康的系统和方法。 该系统可以包括选择性地联接到诸如回转马达的液压致动器的液压蓄能器。 蓄能器可以由致动器的移动来充电。 压力传感器可以与蓄能器相关联，以确定蓄能器的压力。 控制器可以连接到压力传感器。 控制器可以基于与致动器运动相关联的致动器操作参数与蓄能器压力之间的关系来确定充气曲线。 控制器可以将充电曲线与先前定义的充电曲线或范围进行比较，以确定充电曲线与先前定义的充电曲线或范围之间的误差。 错误的程度可以与累加器的运行状况相关联，如果过大，可能会向操作员通知状态。

    Hydraulic System Including Independent Metering Valve with Flowsharing
    27.
    发明申请
    Hydraulic System Including Independent Metering Valve with Flowsharing 有权
    包括具有流量分配的独立计量阀的液压系统

    公开(公告)号：US20160312807A1

    公开(公告)日：2016-10-27

    申请号：US14696869

    申请日：2015-04-27

    Applicant: Caterpillar Inc.

    Inventor： Andrew J. Kleitsch ,  Pengfei Ma ,  Jason L. Brinkman ,  Mikhail Sorokin

    IPC: F15B11/028

    CPC classification number: F15B11/165 ,  E02F9/2228 ,  F15B11/006 ,  F15B11/163 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/30535 ,  F15B2211/30555 ,  F15B2211/30575 ,  F15B2211/61 ,  F15B2211/6313 ,  F15B2211/6316 ,  F15B2211/6346 ,  F15B2211/6355 ,  F15B2211/6652 ,  F15B2211/6654 ,  F15B2211/7142

    Abstract: An independent metering valve circuit includes an actuator, a set of independent metering valves, an independent metering valve pre-compensator, an inverse resolver, and a signal conditioning element. The set of independent metering valves are fluidly coupled to the actuator and configured to independently control a flow of a hydraulic fluid to the actuator. The independent metering valve pre-compensator is configured to control the flow of the hydraulic fluid to the set of independent metering valves. The inverse resolver is configured to receive a first pressure signal from the independent metering valve circuit and a second pressure signal from a load-sense hydraulic system and output a third pressure signal. The signal conditioning element is configured to receive the third pressure signal and output a forth pressure signal configured to control a pump fluidly coupled to the load-sense hydraulic system and the independent metering valve circuit.

    Abstract translation: 独立的计量阀电路包括致动器，一组独立计量阀，独立计量阀预补偿器，逆解算器和信号调节元件。 该组独立计量阀流体地联接到致动器并且构造成独立地控制液压流体到致动器的流动。 独立的计量阀预补偿器构造成控制液压流体流向该组独立的计量阀。 逆解算器被配置为接收来自独立计量阀电路的第一压力信号和来自负载感测液压系统的第二压力信号并输出​​第三压力信号。 信号调节元件构造成接收第三压力信号并输出​​配置成控制流体耦合到负载感测液压系统和独立计量阀回路的泵的第四压力信号。

    Integration of Swing Energy Recovery and Engine Anti-Idling Systems
    28.
    发明申请
    Integration of Swing Energy Recovery and Engine Anti-Idling Systems 有权
    摆动能量回收和发动机反怠速系统的整合

    公开(公告)号：US20160281745A1

    公开(公告)日：2016-09-29

    申请号：US14668671

    申请日：2015-03-25

    Applicant: Caterpillar Inc.

    Inventor： Tonglin Shang ,  Pengfei Ma ,  Dayao Chen ,  Jeremy Peterson ,  Emily Anne Morris

    IPC: F15B1/033 ,  F15B21/14 ,  F15B13/02 ,  E02F9/22

    CPC classification number: F15B1/033 ,  E02F9/2217 ,  E02F9/2221 ,  E02F9/2242 ,  E02F9/2296 ,  F02N7/00 ,  F02N2200/10 ,  F15B1/024 ,  F15B13/02 ,  F15B21/14 ,  F15B2211/20523 ,  F15B2211/20569 ,  F15B2211/212 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/7058 ,  F15B2211/851 ,  F15B2211/88

    Abstract: Engine anti-idling and restart may be implemented in a machine having a power source, a movable work tool, a pump driven by the power source, an actuator receiving fluid from the pump and moving the work tool, a high-pressure fluid reservoir, and an assist motor operatively connected to the power source. Engine restart may include detecting operator input to start the power source, and fluidly connecting the fluid reservoir to the assist motor to assist in starting the power source in response to detecting the operator input. Prior to shutting down the power source during anti-idling, fluid from the pump may be input to the assist motor, pressurized and communicated to the high-pressure fluid reservoir in response to determining that idle condition exists and a reservoir charge pressure is less than a reservoir minimum restart pressure needed to restart the power source.

    Abstract translation: 发动机反怠速和重启可以在具有动力源，可移动作业工具，由动力源驱动的泵，从泵接收流体和移动工作工具的机器，高压流体储存器， 以及可操作地连接到电源的辅助马达。 发动机重启可以包括检测操作员输入以启动动力源，以及将流体储存器流体地连接到辅助马达，以响应于检测到操作者的输入而帮助启动动力源。 在反怠速期间关闭电源之前，来自泵的流体可以被输入到辅助马达，响应于确定空转状况而存在并加压并连通到高压流体存储器并且储存器充气压力小于 重新启动电源所需的储层最小重启压力。

    Energy recovery system having integrated boom/swing circuits
    29.
    发明授权
    Energy recovery system having integrated boom/swing circuits 有权
    能量回收系统具有集成的动臂/回转回路

    公开(公告)号：US09290912B2

    公开(公告)日：2016-03-22

    申请号：US13665384

    申请日：2012-10-31

    Applicant: Caterpillar Inc.

    Inventor： Gang Victor Wen ,  Pengfei Ma ,  Jiao Zhang ,  Tonglin Shang

    IPC: F16D31/02 ,  E02F9/22 ,  F15B1/027 ,  F15B11/17 ,  F15B13/06 ,  F15B21/14 ,  E02F9/12

    CPC classification number: E02F9/2296 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2242 ,  E02F9/2292 ,  F15B1/027 ,  F15B1/0275 ,  F15B11/17 ,  F15B13/06 ,  F15B21/14 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/7058 ,  F15B2211/7135

    Abstract: An energy recovery system for a machine is disclosed. The energy recovery system may have a boom circuit with at least a one linear actuator configured to move a work tool, and a boom accumulator configured to selectively collect pressurized fluid from the at least one linear actuator and to discharge pressurized fluid back to the at least one linear actuator. The energy recovery system may also have a swing circuit with a swing motor configured to move the work tool, and a swing accumulator configured to selectively collect pressurized fluid from the swing motor and discharge pressurized fluid back to the swing motor. The energy recovery system may further have a common accumulator passage fluidly connecting the boom accumulator and the swing accumulator.

    Abstract translation: 公开了一种用于机器的能量回收系统。 能量回收系统可以具有吊杆回路，其中至少一个线性致动器被配置为移动作业工具;以及悬臂收集器，其构造成选择性地从至少一个线性致动器收集加压流体，并将加压流体排回到至少 一个线性执行器。 能量回收系统还可以具有摆动回路，摆动马达构造成移动作业工具;摆动储存器构造成选择性地收集来自回转马达的加压流体，并将加压流体排放回到回转马达。 能量回收系统可以进一步具有通过流体连接起重臂蓄能器和摆动蓄能器的公共蓄能器通道。

    Energy recovery system for hydraulic machine
    30.
    发明授权
    Energy recovery system for hydraulic machine 有权
    液压机能量回收系统

    公开(公告)号：US09290911B2

    公开(公告)日：2016-03-22

    申请号：US13770858

    申请日：2013-02-19

    Applicant: Caterpillar Inc.

    Inventor： Pengfei Ma ,  Tonglin Shang ,  Jiao Zhang ,  Dayao Chen ,  Gang Victor Wen

    IPC: F15B21/14 ,  E02F9/22 ,  F15B1/02 ,  E02F9/12

    CPC classification number: E02F9/22 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2292 ,  E02F9/2296 ,  F15B1/024 ,  F15B21/14 ,  F15B2211/20507 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/7058 ,  F15B2211/7135

    Abstract: An energy recovery system is disclosed for use with a hydraulic machine. The energy recovery system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, an actuator, and an actuator control valve movable to direct pressurized fluid from the pump to the actuator and from the actuator to the tank to move the actuator. The energy recovery system may also have a motor mechanically connected to a rotary device and configured to selectively receive fluid discharged from the actuator, and at least one valve movable to selectively redirect fluid exiting the motor back to the actuator.

    Abstract translation: 公开了一种与液压机一起使用的能量回收系统。 能量回收系统可以具有罐，配置成从罐抽出流体并加压流体的泵，致动器和致动器控制阀，所述致动器和致动器控制阀可移动以将加压流体从泵引导到致动器，并且从致动器引导到罐， 移动执行器。 能量回收系统还可以具有机械地连接到旋转装置并被构造成选择性地接收从致动器排出的流体的电动机，以及至少一个阀，其可移动以选择性地将从马达返回的驱动器重新定向到致动器。

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