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    Hydraulic control system having swing motor energy recovery
    1.
    发明授权
    Hydraulic control system having swing motor energy recovery 有权
    具有摆动电机能量回收的液压控制系统

    公开(公告)号：US09388828B2

    公开(公告)日：2016-07-12

    申请号：US13718855

    申请日：2012-12-18

    Applicant: Caterpillar Inc.

    Inventor： Bryan J. Hillman ,  Jiao Zhang ,  Lawrence C. Tognetti ,  Peter Spring ,  Rustu Cesur ,  Tonglin Shang

    IPC: F16D31/02 ,  F15B1/02 ,  F15B21/14 ,  E02F9/12 ,  E02F9/22

    CPC classification number: F15B1/02 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2296 ,  F15B1/024 ,  F15B21/14 ,  F15B2211/625 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/7058 ,  F15B2211/88

    Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, a swing motor, and at least one control. The hydraulic control system may further have an accumulator configured to receive fluid from and supply fluid to the swing motor, a charge valve movable to allow fluid flow from the swing motor into the accumulator, and a discharge valve movable to allow fluid flow from the accumulator to the swing motor. The hydraulic control system may additionally have a controller in communication with the at least one control valve, the charge valve, and the discharge valve. The controller may be configured to detect an acceleration of the swing motor, selectively cause the discharge valve to assist the acceleration, and selectively move the charge valve to an open position to recover energy associated with pressure spikes occurring during the acceleration.

    Abstract translation: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵，回转马达和至少一个控制器。 液压控制系统还可以具有一个蓄能器，其被配置为从回转马达接收流体并向其提供流体;充气阀，其可移动以允许流体从回转马达流入蓄能器;以及排出阀，其可移动以允许流体从累加器流出 到摆动马达。 液压控制系统还可以具有与至少一个控制阀，充气阀和排放阀连通的控制器。 控制器可以被配置为检测回转马达的加速度，选择性地使排放阀辅助加速，并且选择性地将充气阀移动到打开位置以恢复与在加速期间发生的压力峰值相关联的能量。

    HYDRAULIC SYSTEM HAVING ENERGY RECOVERY
    3.
    发明申请
    HYDRAULIC SYSTEM HAVING ENERGY RECOVERY 审中-公开
    具有能源回收的液压系统

    公开(公告)号：US20150300384A1

    公开(公告)日：2015-10-22

    申请号：US14753600

    申请日：2015-06-29

    Applicant: Caterpillar Inc.

    Inventor： Jiao Zhang ,  Tonglin Shang ,  Peter Spring ,  Pengfei Ma ,  Randal Peterson ,  Rustu Cesur

    IPC: F15B21/14 ,  E02F9/22 ,  E02F9/12 ,  F15B11/024

    CPC classification number: F15B21/14 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2296 ,  F15B1/02 ,  F15B1/033 ,  F15B11/024 ,  F15B2011/0243 ,  F15B2011/0246 ,  F15B2211/205 ,  F15B2211/212 ,  F15B2211/30575 ,  F15B2211/50527 ,  F15B2211/50554 ,  F15B2211/511 ,  F15B2211/613 ,  F15B2211/625 ,  F15B2211/7058 ,  F15B2211/88

    Abstract: A hydraulic system for a machine is disclosed. The system may have a pump and a motor driven by pressurized fluid from the pump. An accumulator is configured to receive fluid discharged from the motor and to discharge fluid to the motor. The system may include a first valve to selectively communicate the higher pressure of conduits coupled between the pump and motor to the accumulator. A second valve and a third valve can be used to facilitate charging and discharging of the accumulator. The system may include a controller configured to implement a plurality of modes of operation, which each mode of operation may include a different combination of motor deceleration and motor acceleration segments during which the accumulator receives and discharges fluid, respectively. An input may be used to determine the segment of the work cycle.

    Abstract translation: 公开了一种用于机器的液压系统。 该系统可以具有来自泵的加压流体驱动的泵和马达。 蓄能器构造成接收从电动机排出的流体并将流体排放到电动机。 该系统可以包括第一阀，以选择性地将耦合在泵和马达之间的管道的较高压力传递到蓄能器。 可以使用第二阀和第三阀来促进蓄能器的充放电。 该系统可以包括被配置为实现多种操作模式的控制器，每种操作模式可以分别包括电动机减速和电动机加速段的不同组合，在此期间蓄能器分别接收和排出流体。 可以使用输入来确定工作周期的段。

    Hydraulic control system having swing motor recovery
    5.
    发明授权
    Hydraulic control system having swing motor recovery 有权
    液压控制系统具有回转马达回收

    公开(公告)号：US09086081B2

    公开(公告)日：2015-07-21

    申请号：US13718922

    申请日：2012-12-18

    Applicant: Caterpillar Inc.

    Inventor： Jiao Zhang ,  Pengfei Ma ,  Tonglin Shang ,  Rustu Cesur ,  Bryan J. Hillman ,  Peter Spring ,  Lawrence J. Tognetti ,  Randal N. Peterson ,  Dayao Chen

    IPC: F15B21/14

    CPC classification number: F15B21/14 ,  F15B1/024 ,  F15B2211/625 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/7058 ,  F15B2211/75 ,  F15B2211/755 ,  F15B2211/88

    Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, a swing motor, and at least one control valve configured to control fluid flow between the pump, the swing motor, and the tank. The hydraulic system may also have an accumulator configured to selectively receive pressurized fluid discharged from the swing motor and selectively supply pressurized fluid to the swing motor, at least one accumulator valve, and a controller. The controller may be configured to receive input indicative of a difference between desired and actual speeds of the swing motor, and determine if the swing motor is accelerating or decelerating based on the difference. The controller may also be configured to control the at least one accumulator valve to cause the accumulator to selectively receive or supply pressurized fluid only when the swing motor is accelerating or decelerating.

    Abstract translation: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵，回转马达和构造成控制泵，回转马达和罐之间的流体流动的至少一个控制阀。 液压系统还可以具有蓄能器，其被配置为选择性地接收从回转马达排出的加压流体，并且选择性地将加压流体供应到回转马达，至少一个储能阀和控制器。 控制器可以被配置为接收指示回转马达的期望速度和实际速度之间的差异的输入，并且基于该差异来确定回转马达是加速还是减速。 控制器还可以被配置成控制至少一个蓄能阀，使得蓄能器仅在回转马达正在加速或减速时有选择地接收或供应加压流体。

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