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    CONTROL SYSTEM FOR CONSTRUCTION MACHINE
    1.
    发明申请
    CONTROL SYSTEM FOR CONSTRUCTION MACHINE 审中-公开

    公开(公告)号：US20180119388A1

    公开(公告)日：2018-05-03

    申请号：US15567646

    申请日：2016-06-01

    Applicant: KYB Corporation

    Inventor： Masahiro EGAWA ,  Haruhiko KAWASAKI

    IPC: E02F9/22

    CPC classification number: E02F9/2225 ,  E02F9/20 ,  E02F9/22 ,  E02F9/2217 ,  E02F9/2267 ,  E02F9/2271 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/024 ,  F15B11/08 ,  F15B13/0401 ,  F15B13/0426 ,  F15B21/14 ,  F15B2211/6355

    Abstract: A control system for a construction machine includes a fluid pressure pump, a fluid pressure actuator having a load-side pressure chamber and an anti-load side pressure chamber, an operation valve switched to supply the working oil to the anti-load side pressure chamber and to discharge the working oil from the load-side pressure chamber when the pilot pressure is led to the pilot chamber on the basis of an operation by an operator, a regenerative flow rate control valve switched to lead a part of the working oil discharged from the load-side pressure chamber to the anti-load side pressure chamber when the pilot pressure is led to the pilot chamber, a pilot communication flow passage for allowing the pilot chamber and the pilot chamber to communicate, and a switching valve for switching the pilot communication flow passage between a communication state and a shut-off state.

    CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE
    5.
    发明申请
    CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE 审中-公开

    公开(公告)号：US20190127955A1

    公开(公告)日：2019-05-02

    申请号：US16095464

    申请日：2017-05-16

    Applicant: KYB Corporation

    Inventor： Masahiro EGAWA

    IPC: E02F9/20 ,  F15B21/14 ,  E02F9/22

    Abstract: A control system for a hybrid construction machine includes: a first main pump and a second main pump; a regeneration motor configured to rotationally drive by returned working oil; a motor generator coupled to the regeneration motor; an assist pump coupled to the regeneration motor and the motor generator; and a controller. The controller controls the assist pump or the motor generator such that the assist pump drive force is not more than the drive force limited value when an assist pump drive force is greater than a drive force limited value.

    CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE
    7.
    发明申请
    CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE 审中-公开
    混合施工机械控制系统

    公开(公告)号：US20160215481A1

    公开(公告)日：2016-07-28

    申请号：US14917723

    申请日：2014-09-26

    Applicant: KYB CORPORATION

    Inventor： Haruhiko KAWASAKI ,  Masahiro EGAWA

    IPC: E02F9/22 ,  F15B21/14 ,  H02K7/18 ,  F15B20/00

    CPC classification number: E02F9/2217 ,  E02F9/2075 ,  E02F9/2203 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B20/004 ,  F15B21/14 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/3058 ,  F15B2211/30595 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/45 ,  F15B2211/67 ,  F15B2211/7053 ,  F15B2211/7142 ,  F15B2211/761 ,  F15B2211/8752 ,  F15B2211/88 ,  H02K7/1823

    Abstract: A control system for a hybrid construction machine includes first and second main pumps for supplying working oil, a boom cylinder extending by supply of the working oil to a piston-side chamber and raising a boom and contracting by discharge of the working oil from the piston-side chamber and lowering the boom, a regenerative spool valve controlled by a pressure of pilot pressure oil and adjusting a flow rate of the working oil discharged from the piston-side chamber, a regenerative motor for regeneration rotating by the working oil discharged from the piston-side chamber, a rotary electric machine connected to the regenerative motor, and a failsafe switching valve switching with a pressure of a regenerative passage between the regenerative control spool valve and the regenerative motor as a pilot pressure and lowering the pressure of the pilot pressure oil to the regenerative control spool valve so that a flow rate of the working oil discharged from the piston-side chamber is narrowed if the pressure of the regenerative passage is less than a set pressure.

    Abstract translation: 一种用于混合动力施工机械的控制系统，包括用于供给工作油的第一和第二主泵，通过将工作油供应到活塞侧室而延伸的起重臂缸，并且通过从活塞排出工作油来升高起重臂和收缩 并且降低动臂，由先导压力油的压力控制的再生滑阀，并且调节从活塞侧室排出的工作油的流量，再生电动机，其由通过从活塞侧室排出的工作油旋转 活塞侧室，与再生电动机连接的旋转电机，以及在再生控制滑阀和再生电动机之间的再生通路的压力切换的故障保护切换阀作为先导压力，并且降低先导压力的压力 油到再生控制滑阀，使得从活塞侧室排出的工作油的流量变窄 d，再生通道的压力小于设定压力。

    RELIEF VALVE
    8.
    发明申请
    RELIEF VALVE 有权

    公开(公告)号：US20210190222A1

    公开(公告)日：2021-06-24

    申请号：US16761296

    申请日：2019-03-15

    Applicant: KYB Corporation

    Inventor： Masahiro EGAWA

    IPC: F16K17/10 ,  F16K1/34

    Abstract: A relief valve comprises a suction poppet being configured to allow flow of working fluid from the low-pressure passage to the high-pressure passage in a valve-opened state, a pilot passage being configured such that the high-pressure passage and the back-pressure chamber in the suction poppet are communicated through the pilot passage, and a pilot poppet configured to open/close a passage through which the back-pressure chamber and a drain chamber provided in the guide plug are communicated. The suction poppet has a first seating portion being configured to be seated onto the first seat portion of a main body. The main poppet has a projecting portion projecting towards the high-pressure passage. A length from the first seating portion to the tip-end-side opening portion is set so as to be equal to or longer than an outer diameter D0 of the projecting portion.

    CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE
    10.
    发明申请
    CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE 有权
    混合施工机械控制系统

    公开(公告)号：US20160237648A1

    公开(公告)日：2016-08-18

    申请号：US14915654

    申请日：2014-09-11

    Applicant: KYB Corporation

    Inventor： Haruhiko KAWASAKI ,  Masahiro EGAWA

    IPC: E02F9/12 ,  E02F9/22 ,  F15B21/14 ,  E02F9/20

    CPC classification number: E02F9/123 ,  E02F9/2075 ,  E02F9/2217 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B21/14 ,  F15B2211/6313 ,  F15B2211/7058

    Abstract: A control system for hybrid construction machine includes a regeneration motor configured to be rotated by working fluid introduced from a turning circuit, a pressure detector configured to detect a turning pressure during a turning operation of the turning motor or a braking pressure during a braking operation of the turning motor, a switching valve for turning regeneration configured to perform turning regeneration by introducing the working fluid from the turning circuit to the regeneration motor when being switched to an open position by a pressure of pilot fluid, an electromagnetic proportional pressure reducing valve configured to be switched to an open position and generate a pilot secondary pressure for switching the switching valve for turning regeneration to the open position when a pressure detected by the pressure detector reaches a first set pressure, and a pilot switching valve configured to allow the passage of the pilot fluid for switching the switching valve for turning regeneration to the open position by being switched to an open position when the pressure of the turning circuit reaches a second set pressure.

    Abstract translation: 一种混合式施工机械的控制系统，包括：再生电动机，其被配置为通过从转向回路引入的工作流体旋转;压力检测器，被配置为在转向电动机的转动操作期间检测转向压力​​或制动操作期间的制动压力 转向电动机，用于通过先导流体的压力切换到打开位置时将来自转向回路的工作流体引导到再生电动机的转向再生用开关阀，电磁比例减压阀，被配置为 切换到打开位置，并且当由压力检测器检测到的压力达到第一设定压力时，产生用于切换转向再生的切换阀到开启位置的先导二次压力;以及引导切换阀，其被配置为允许 用于切换旋转开关阀的先导流体 当转向回路的压力达到第二设定压力时，通过切换到打开位置来再生到打开位置。

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