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15 条记录 (耗时 0.031 秒)

    Hybrid Construction Machine
    2.
    发明申请
    Hybrid Construction Machine 审中-公开

    公开(公告)号：US20170274891A1

    公开(公告)日：2017-09-28

    申请号：US15508552

    申请日：2015-12-08

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： Masafumi HITA ,  Seiji ISHIDA ,  Ken TAKEUCHI ,  Shinya IMURA

    IPC分类号： B60W20/13

    CPC分类号： B60W20/13 ,  E02F3/32 ,  E02F9/123 ,  E02F9/2075 ,  E02F9/2091 ,  E02F9/2095 ,  E02F9/2246 ,  E02F9/2271 ,  E02F9/2296

    摘要： A motor generator (27) is connected mechanically to an engine (21) and a hydraulic pump (23). The hydraulic pump (23) delivers pressurized oil to cylinders (11D) to (11F) in a working mechanism (11), a traveling hydraulic motor (25) and a revolving hydraulic motor (26). The revolving hydraulic motor (26) drives a revolving device (3) in cooperation with a revolving electric motor (33). The motor generator (27) and the revolving electric motor (33) are connected electrically to an electricity storage device (31). An HCU (36) sets a target electricity storage rate (SOC0) of the electricity storage device (31) and a pump output limit (POL0) of the hydraulic pump (23) corresponding to a mode selected by a mode selection device (38). The HCU (36) controls the engine (21), the motor generator (27), the revolving electric motor (33) and the electricity storage device (31) corresponding to the target electricity storage rate (SOC0) and the pump output limit (POL0).

    WORK MACHINE
    3.
    发明申请
    WORK MACHINE 审中-公开

    公开(公告)号：US20190249391A1

    公开(公告)日：2019-08-15

    申请号：US16329236

    申请日：2017-11-20

    申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.

    发明人： Jun KIKUCHI ,  Seiji ISHIDA ,  Manabu EDAMURA

    IPC分类号： E02F3/43 ,  E02F3/84 ,  E02F9/22 ,  E02F9/26

    CPC分类号： E02F3/43 ,  E02F3/845 ,  E02F9/20 ,  E02F9/2004 ,  E02F9/22 ,  E02F9/2221 ,  E02F9/26 ,  E02F9/264

    摘要： A work machine includes: a satellite communication antenna for detecting a position of an upper swing structure; angle sensors detecting postures of two work devices; position computing devices that calculate postures/positions of the two work devices on the basis of outputs from the satellite communication antenna and the angle sensors; a display device on which the position of at least one work device of the two work devices and a position of a target surface are displayed; a display selection switch that outputs a first input signal for displaying a work device selected by an operator from between the two work devices on the display device; and a display changeover section that displays the work device corresponding to the first input signal input from the display selection switch out of the two work devices and the position of the target work object of the work device on the display device.

    Hybrid Construction Machinery
    4.
    发明申请
    Hybrid Construction Machinery 审中-公开

    公开(公告)号：US20180320338A1

    公开(公告)日：2018-11-08

    申请号：US15774689

    申请日：2016-10-31

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： Tadashi OSAKA ,  Ken TAKEUCHI ,  Seiji ISHIDA

    IPC分类号： E02F9/20 ,  B60L11/12 ,  B60K6/28 ,  B60L11/14 ,  E02F9/08 ,  E02F9/22 ,  H01M10/613 ,  H01M10/633 ,  H01M10/625 ,  H01M10/6563 ,  H01M10/6568

    摘要： It is an object of the present invention to provide hybrid construction machinery in which a power storage apparatus can be warmed up quickly and a life of the power storage apparatus can be lengthened. The hybrid construction machinery includes: an electric motor assisting a prime mover in power and generating electric power; the power storage apparatus transferring electric power to and from the electric motor; a warm-up circuit circulating a warming medium in the vicinity of the power storage apparatus; and a control device controlling circulation of the warming medium in the warm-up circuit. The hybrid construction machinery is provided with on-board equipment state detection units that detect states of on-board equipment to estimate an output request for the power storage apparatus from the on-board equipment. The control device controls circulation of the warming medium based on a temperature of the power storage apparatus and a determination temperature for determining whether to circulate the warming medium in the warm-up circuit. The control device further varies the determination temperature according to a result of detection by the on-board equipment state detection units.

    Drive System
    6.
    发明公开
    Drive System 审中-公开

    公开(公告)号：US20230370008A1

    公开(公告)日：2023-11-16

    申请号：US18025492

    申请日：2022-02-18

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： Kazuo NISHIHAMA ,  Masatoshi YOSHIMURA ,  Kosuke MATSUO ,  Satoru KANEKO ,  Tokuma IKEGAMI ,  Seiji ISHIDA ,  Toshihiko WATANABE

    IPC分类号： H02P27/06 ,  H02K11/33 ,  B60L15/00 ,  B60L50/51 ,  B60L7/14

    CPC分类号： H02P27/06 ,  H02K11/33 ,  B60L15/007 ,  B60L50/51 ,  B60L7/14

    摘要： It is an object of the present invention to provide a drive system including an induction generator comprising some primary windings that has a main winding and an auxiliary winding, the drive system being capable of supplying electric power required by an auxiliary inverter, even in a regenerative mode of operation in which only the auxiliary winding is energized. The maximum current value of a converter for power generating is set on the basis of the maximum output power of the auxiliary winding of the induction generator and the minimum voltage applied to the auxiliary winding unless a traction inverter is in a regenerative mode of operation, and the non-load current value of the induction generator is set such that the maximum current in the auxiliary winding under the situation of the traction inverter being in the regenerative mode of operation does not exceed the maximum current in the converter for power generating.

    Construction Machine
    7.
    发明申请
    Construction Machine 有权

    公开(公告)号：US20210214920A1

    公开(公告)日：2021-07-15

    申请号：US16081734

    申请日：2017-03-14

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： Itaru NAYA ,  Shinya IMURA ,  Masafumi HITA ,  Seiji ISHIDA ,  Ken TAKEUCHI

    IPC分类号： E02F9/22 ,  E02F9/20 ,  F15B21/08 ,  F15B15/18

    摘要： A main controller and a hybrid controller control an engine, an assist generator motor, a hydraulic pump and an electricity storage device. In this case, the hybrid controller is provided with a performance state recovery part that performs performance state recovery of the electricity storage device. In a case where a performance state amount varying with repetition of a discharge and a charge of the electricity storage device, specifically, a current integrated value ratio of the electricity storage device goes beyond a predetermined threshold value (L1%), the performance state recovery part limits power of the hydraulic pump. Thereby, the performance state recovery part performs the performance state recovery of the electricity storage device.

    CONTROL DEVICE OF CONSTRUCTION MACHINE
    9.
    发明申请
    CONTROL DEVICE OF CONSTRUCTION MACHINE 审中-公开
    建筑机械控制装置

    公开(公告)号：US20170009427A1

    公开(公告)日：2017-01-12

    申请号：US15053080

    申请日：2016-02-25

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： Seiji ISHIDA ,  Shinya IMURA ,  Masafumi HITA

    IPC分类号： E02F9/20 ,  H02J7/00 ,  B60L11/18 ,  G05B15/02 ,  B60K35/00

    CPC分类号： E02F9/2091 ,  B60K6/485 ,  B60K35/00 ,  B60K2350/352 ,  B60L1/003 ,  B60L11/02 ,  B60L11/123 ,  B60L11/1857 ,  B60L11/1861 ,  B60L11/1872 ,  B60L2200/40 ,  B60L2240/545 ,  B60L2240/549 ,  B60Y2200/412 ,  B60Y2300/91 ,  E02F3/32 ,  E02F9/2075 ,  G05B15/02 ,  H02J7/0047 ,  H02J7/007 ,  H02J2007/005 ,  Y02T10/6217 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y10S903/903

    摘要： A control device of construction machine that performs tasks by driving a hydraulic pump by means of an electric motor that is driven by electric power of a battery device that is capable to charge and discharge and an engine that is mechanically coupled to the electric motor, includes: a charging/discharging control unit that controls the charging/discharging of the battery device in such a manner that, in case that a heavy load task where an output of the hydraulic pump is large and a light load task where the output of the hydraulic pump is small are alternately performed, when the output of the hydraulic pump during the heavy load task is increased or a time proportion of the heavy load task in the unit period is increased, an average value of charging current of the battery device per the unit period increases, and when the output of the hydraulic pump during the heavy load task is further increased or the time proportion of the heavy load task in the unit period is further increased, then the average value of the charging current of the battery device per the unit period decreases.

    摘要翻译： 一种施工机械的控制装置，其通过利用能够进行充放电的电池装置的电力驱动的电动机和与该电动机械机械连接的发动机来驱动液压泵来执行任务的控制装置，包括： ：充电/放电控制单元，其控制电池装置的充电/放电，使得在液压泵的输出大的重载任务和液压泵的输出的轻负荷任务的情况下 泵交替执行时，当重负荷任务期间液压泵的输出增加或单位周期内的重载任务的时间比例增加时，每单位电池装置的充电电流的平均值 期间增加，而在重负荷任务期间液压泵的输出进一步增加或单位时间内重型任务的时间比例进一步增加 sed，则单位周期内电池装置的充电电流的平均值减小。