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    Hydraulic control system having swing motor energy recovery
    2.
    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 ENERGY RECOVERY
    5.
    发明申请
    HYDRAULIC CONTROL SYSTEM HAVING SWING ENERGY RECOVERY 有权
    具有振动能量回收的液压控制系统

    公开(公告)号：US20140060031A1

    公开(公告)日：2014-03-06

    申请号：US13718907

    申请日：2012-12-18

    Applicant: CATERPILLAR INC.

    Inventor： Rustu Cesur ,  Lawrence J. Tognetti ,  Pengfei Ma ,  Jiao Zhang ,  Tonglin Shang

    IPC: F15B1/033 ,  F15B21/14 ,  F15B13/04

    CPC classification number: F15B1/033 ,  F15B1/024 ,  F15B13/04 ,  F15B21/082 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/665 ,  F15B2211/6652 ,  F15B2211/6658 ,  F15B2211/7058 ,  F15B2211/8603 ,  F15B2211/8752 ,  F15B2211/88

    Abstract: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump, and a fluid actuator. The hydraulic control system may further have an accumulator configured to selectively receive pressurized fluid discharged from the fluid actuator and selectively supply pressurized fluid to the fluid actuator. The hydraulic control system may also have a pressure sensor configured to generate a signal indicative of a pressure of the accumulator, a charge valve, a discharge valve, and a controller in communication with the control valve, the charge valve, and the discharge valve. The controller may be configured to detect stall of the fluid actuator, to make a comparison of the pressure of the accumulator with a threshold pressure, and to selectively move the charge valve to charge the accumulator or move the discharge valve to discharge the accumulator during the stall based on the comparison.

    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，泵和流体致动器。 液压控制系统还可以具有蓄能器，该蓄能器构造成选择性地接收从流体致动器排出的加压流体并且选择性地将加压流体供应到流体致动器。 液压控制系统还可以具有压力传感器，该压力传感器被配置为产生指示蓄能器，充气阀，排放阀和与控制阀，充气阀和排出阀连通的控制器的压力的信号。 控制器可以被配置为检测流体致动器的失速，以使蓄能器的压力与阈值压力进行比较，并且选择性地移动充气阀以对蓄能器充电或移动排放阀以在蓄能器期间释放蓄能器 摊位基于比较。

    Hydraulic control system having swing energy recovery
    6.
    发明授权
    Hydraulic control system having swing energy recovery 有权
    具有摆动能量回收的液压控制系统

    公开(公告)号：US09328744B2

    公开(公告)日：2016-05-03

    申请号：US13718907

    申请日：2012-12-18

    Applicant: Caterpillar Inc.

    Inventor： Rustu Cesur ,  Lawrence J. Tognetti ,  Pengfei Ma ,  Jiao Zhang ,  Tonglin Shang

    IPC: F15B1/00 ,  F15B1/033 ,  F15B13/04 ,  F15B21/14 ,  F15B1/02 ,  F15B21/08

    CPC classification number: F15B1/033 ,  F15B1/024 ,  F15B13/04 ,  F15B21/082 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/665 ,  F15B2211/6652 ,  F15B2211/6658 ,  F15B2211/7058 ,  F15B2211/8603 ,  F15B2211/8752 ,  F15B2211/88

    Abstract: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump, and a fluid actuator. The hydraulic control system may further have an accumulator configured to selectively receive pressurized fluid discharged from the fluid actuator and selectively supply pressurized fluid to the fluid actuator. The hydraulic control system may also have a pressure sensor configured to generate a signal indicative of a pressure of the accumulator, a charge valve, a discharge valve, and a controller in communication with the control valve, the charge valve, and the discharge valve. The controller may be configured to detect stall of the fluid actuator, to make a comparison of the pressure of the accumulator with a threshold pressure, and to selectively move the charge valve to charge the accumulator or move the discharge valve to discharge the accumulator during the stall based on the comparison.

    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，泵和流体致动器。 液压控制系统还可以具有蓄能器，该蓄能器构造成选择性地接收从流体致动器排出的加压流体并且选择性地将加压流体供应到流体致动器。 液压控制系统还可以具有压力传感器，该压力传感器被配置为产生指示蓄能器，充气阀，排放阀和与控制阀，充气阀和排出阀连通的控制器的压力的信号。 控制器可以被配置为检测流体致动器的失速，以使蓄能器的压力与阈值压力进行比较，并且选择性地移动充气阀以对蓄能器充电或移动排放阀以在蓄能器期间释放蓄能器 摊位基于比较。

    Hydraulic control system having swing oscillation dampening
    7.
    发明授权
    Hydraulic control system having swing oscillation dampening 有权
    具有摆动振荡阻尼的液压控制系统

    公开(公告)号：US09187878B2

    公开(公告)日：2015-11-17

    申请号：US13714064

    申请日：2012-12-13

    Applicant: Caterpillar Inc.

    Inventor： Tonglin Shang ,  Rustu Cesur ,  Bryan J. Hillman ,  Jiao Zhang

    IPC: E02F9/22 ,  E02F9/12 ,  F15B11/048

    CPC classification number: E02F9/2278 ,  E02F9/123 ,  E02F9/2207 ,  E02F9/2217 ,  E02F9/2296 ,  F15B11/048 ,  F15B2211/212 ,  F15B2211/30575 ,  F15B2211/327 ,  F15B2211/353 ,  F15B2211/365 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/665 ,  F15B2211/7058 ,  F15B2211/853 ,  F15B2211/8613 ,  F15B2211/88

    Abstract: A hydraulic control system is disclosed. The hydraulic control system may have an input device to generate a first signal indicative of a desired swing motor movement, and a control valve configured to selectively pass fluid to the swing motor and drain from the swing motor to drive the swing motor based on the first signal. The hydraulic control system may also have a pressure sensor to generate a second signal indicative of a swing motor pressure, a speed sensor configured to a third signal indicative of a swing motor speed, and a controller configured to make a comparison of at least one of the swing motor speed and the swing motor pressure with a threshold speed and a threshold pressure, and open the control valve to drain fluid from the swing motor to the tank based on the comparison when the input device is in a neutral condition.

    Abstract translation: 公开了一种液压控制系统。 液压控制系统可以具有输入装置，以产生指示期望的回转马达运动的第一信号;以及控制阀，其配置成选择性地将流体传递到回转马达并从回转马达排出，以便基于第一 信号。 液压控制系统还可以具有压力传感器以产生指示回转马达压力的第二信号，被配置为指示回转马达速度的第三信号的速度传感器以及被配置为进行比较以下中的至少一个的控制器： 摆动马达速度和摆动马达压力，具有阈值速度和阈值压力，并且当输入装置处于中立状态时，基于比较，打开控制阀以将流体从摆动马达排出到油箱。

    Hydraulic control system having swing motor recovery
    8.
    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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