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公开(公告)号：US09822803B2
公开(公告)日：2017-11-21
申请号：US14768570
申请日：2014-08-28
发明人： Shinya Imura , Kouji Ishikawa , Hidetoshi Satake , Shinji Nishikawa , Tomoaki Kaneta , Shiho Izumi
CPC分类号： F15B11/20 , E02F9/123 , E02F9/2095 , F15B11/04 , F15B13/0846 , F15B2211/6651 , F15B2211/75 , F15B2211/78
摘要： A work machine is adapted for reduced fuel consumption in regions where swinging by a hydraulic motor is prone to deterioration in efficiency, such as when the operating stroke of the swinging is small. The work machine includes an engine, a hydraulic pump, a swing structure, an electric motor for driving the swing structure, and a hydraulic motor for driving the swing structure, the hydraulic motor being driven by the hydraulic pump, and includes a swing control lever device that commands the swing structure to be driven. A control device operates in either an electric swing mode in which the swing structure is driven mainly by torque of the electric motor or a hydraulic swing mode in which the swing structure is driven mainly by torque of the hydraulic motor, depending on an operating stroke of the control lever device and/or a swing speed of the swing structure.
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公开(公告)号：US10006473B2
公开(公告)日：2018-06-26
申请号：US14729364
申请日：2015-06-03
IPC分类号： F15B11/042 , E02F9/12 , E02F9/20 , E02F9/22 , F15B11/08
CPC分类号： F15B11/042 , E02F9/123 , E02F9/2095 , E02F9/2203 , E02F9/2228 , E02F9/2282 , E02F9/2296 , F15B11/08 , F15B2211/20515 , F15B2211/30525 , F15B2211/3059 , F15B2211/6306 , F15B2211/6346 , F15B2211/6355 , F15B2211/6654 , F15B2211/7058 , F15B2211/7135 , F15B2211/75
摘要： This invention provides a hybrid construction machine including a swing structure, a hydraulic pump, a hydraulic swing motor driving the swing structure using hydraulic fluid from the hydraulic pump, an electric swing motor driving the swing structure in conjunction with the hydraulic swing motor, a boom cylinder operated simultaneously with the swing structure at times and driven by the hydraulic fluid from the hydraulic pump, a first directional control valve controlling flow of the hydraulic fluid supplied from the hydraulic pump to the hydraulic swing motor, a second directional control valve controlling the flow of the hydraulic fluid returning from the hydraulic swing motor, and a controller and solenoid pressure reducing valves which prevent operation of the second directional control valve when the boom cylinder is operated simultaneously with the swing structure.
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公开(公告)号：US09777463B2
公开(公告)日：2017-10-03
申请号：US14767423
申请日：2014-08-20
发明人： Shiho Izumi , Shinya Imura , Hidetoshi Satake , Kouji Ishikawa , Tomoaki Kaneta , Hiroaki Amano , Shinji Nishikawa
CPC分类号： E02F9/2235 , B60L1/00 , E02F9/123 , E02F9/2004 , E02F9/2075 , E02F9/2091 , E02F9/2095 , E02F9/2267 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F04B49/002 , H02P6/08 , Y02T10/642
摘要： A construction machine, comprising a hydraulic pump, a swing hydraulic motor, a swing electric motor, a delivery capacity regulating device, and a control unit which controls the driving/braking of the swing structure, is configured to comprise an operation amount detection device for detecting the operation amount of the swing control lever and a speed detection device for detecting the speed of the swing electric motor. The control unit includes a hydraulic pump output reduction control unit which takes in an operation amount signal representing the operation amount of the swing control lever detected by the operation amount detection device and a speed signal representing the speed of the swing electric motor detected by the speed detection device and controls the delivery capacity regulating device by calculating a reduction rate of the output of the hydraulic pump based on the detection signals.
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公开(公告)号：US09725878B2
公开(公告)日：2017-08-08
申请号：US14915304
申请日：2014-09-18
发明人： Hiroaki Amano , Kouji Ishikawa , Hidetoshi Satake , Shinya Imura , Shinji Nishikawa , Tomoaki Kaneta , Shiho Izumi
CPC分类号： E02F9/123 , B60Y2200/416 , E02F3/32 , E02F9/20 , E02F9/2004 , E02F9/2095 , E02F9/2246
摘要： Provided is a hybrid-type construction machine including a swing device of the hydraulic-electric combined swing type and by which, in a work for which accurate swing operability is demanded like, for example, a crane work, a swing body is driven alone by the electric motor.The hybrid-type construction machine includes an engine, a hydraulic pump driven by the engine, a swing body, an electric motor for driving the swing body, and a hydraulic motor driven by the hydraulic pump for driving the swing body. The swing body is swung by simultaneous drive by the electric motor and the hydraulic motor. The hybrid-type construction machine includes a control apparatus having a work mode changeover unit by which an operator changes over a mode in response to an aspect of a work and an electric alone swing controlling unit configured to control the swing body to be swung by the electric motor alone. When a work in which position accuracy is demanded is selected by the work mode changeover unit, the swing body is swung by the electric alone swing controlling unit.
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公开(公告)号：US20150300378A1
公开(公告)日：2015-10-22
申请号：US14441048
申请日：2013-11-05
发明人： Tsutomu Udagawa , Akira Nakayama , Ryohei Yamashita , Shiho Izumi , Manabu Edamura , Kouji Ishikawa , Hidetoshi Satake
IPC分类号： F15B11/028 , E02F9/22
CPC分类号： F15B11/028 , E02F3/32 , E02F9/22 , E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/0423 , F15B2211/20546 , F15B2211/251 , F15B2211/30525 , F15B2211/3111 , F15B2211/365 , F15B2211/6309 , F15B2211/633 , F15B2211/6333 , F15B2211/6346 , F15B2211/6652 , F15B2211/6653 , F15B2211/6654
摘要： The energy efficiency is increased by reducing the throttle/relief loss in the delivery flow of the hydraulic pump caused by the bleed-off control, while also making it possible to control the delivery pressure of the hydraulic pump according to the operation amount of the control lever unit and improving the operational performance. A controller 6 includes a target pump pressure setting unit 32 which calculates a target pump delivery pressure which increases with the increase in an operation amount signal from an operation amount detector 20A/20B based on the operation amount signal and a pump flow rate upper limit setting unit 33 which calculates a pump flow rate upper limit which increases with the increase in the operation amount signal based on the operation amount signal. The tilt amount of the hydraulic pump 2 is controlled based on the target pump delivery pressure calculated by the target pump pressure setting unit 32, the pump flow rate upper limit calculated by the pump flow rate upper limit setting unit 33, and the delivery pressure of the hydraulic pump 2 detected by a pressure detector 21.
摘要翻译： 通过减少由排出控制引起的液压泵的输送流量中的节流/减压损失，能够提高能量效率，同时还可以根据控制的操作量来控制液压泵的输送压力 杠杆单元，提高操作性能。 控制器6包括目标泵压力设定单元32，该目标泵压力设定单元32基于操作量信号和泵流量上限设定来计算随着来自操作量检测器20A / 20B的操作量信号的增加而增加的目标泵输送压力 单元33，其基于操作量信号计算随着操作量信号的增加而增加的泵流量上限。 基于由目标泵压力设定单元32计算出的目标泵输送压力，由泵流量上限设定单元33计算的泵流量上限，以及泵流量上限设定单元33的输出压力来控制液压泵2的倾斜量 液压泵2由压力检测器21检测。
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公开(公告)号：US10006472B2
公开(公告)日：2018-06-26
申请号：US14431482
申请日：2013-10-15
CPC分类号： F15B11/04 , E02F9/123 , E02F9/20 , E02F9/2095 , E02F9/22 , E02F9/2203 , E02F9/2217 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F15B11/162 , F15B11/165 , F15B13/06 , F15B13/14 , F15B2015/206 , F15B2211/205 , F15B2211/20515 , F15B2211/7058 , F15B2211/7135 , F15B2211/75 , F15B2211/781
摘要： A construction machine includes: a swing structure (50); a hydraulic pump (1); a hydraulic motor (3) for driving the swing structure (50) using hydraulic fluid from the hydraulic pump (1); an electric motor (14) for driving the swing structure (50) with or without the aid of the hydraulic motor (3); and a hydraulic actuator (16) driven by the hydraulic fluid from the hydraulic pump 1, the hydraulic actuator can be operated together with the swing structure (50). When the swing structure (50) is operated together with the hydraulic actuator (16), only the electric motor (14) is used to swing the swing structure (50).
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公开(公告)号：US12031303B2
公开(公告)日：2024-07-09
申请号：US17414347
申请日：2019-11-21
发明人： Shinji Ishihara , Shiho Izumi , Yasuhiko Kanari
摘要： An installation error of a machine-body inertial measurement unit around a first axis is computed on a basis of sensing results of inertial measurement units of a front work implement, and the machine-body inertial measurement unit obtained while the upper swing structure is in a first calibration posture in which the upper swing structure faces a predetermined direction relative to a lower travel structure; and an installation error of the machine-body inertial measurement unit around a second axis is computed on a basis of a sensing result of the machine-body inertial measurement unit obtained while the upper swing structure is in a second calibration posture in which the upper swing structure is swung by 90 degrees relative to the lower travel structure from the first calibration posture, and the installation error of the machine-body inertial measurement unit around the first axis.
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公开(公告)号：US11891783B2
公开(公告)日：2024-02-06
申请号：US17274828
申请日：2020-01-29
发明人： Kenta Nakagi , Yasuhiko Kanari , Shiho Izumi
CPC分类号： E02F9/264 , G02B27/0093 , G02B27/0101 , G02B27/017 , G02B27/0179 , G06T7/70 , G06T7/80 , G02B2027/014 , G02B2027/0138 , G02B2027/0187 , G06T2207/30204 , G06T2207/30252
摘要： A calibration work support system includes an input device for inputting machine information including machine rank data on a hydraulic excavator and specification data on a front work implement, a display controller that generates a target posture image that is an image of the case in which the front work implement that takes target measurement posture is viewed with a point-of-view position and a line-of-sight direction of an operator M on the basis of the machine information input from the input device and target posture data defined in advance as the target measurement posture of the front work implement when an inertial measurement device is calibrated, and an HMD that displays the target posture image generated in the display controller. The HMD executes displaying in such a manner that the target posture image is superimposed on the actual front work implement viewed with the point-of-view position and the line-of-sight direction of the operator M.
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公开(公告)号：US11479941B2
公开(公告)日：2022-10-25
申请号：US16645502
申请日：2018-12-20
发明人： Teruki Igarashi , Shiho Izumi
摘要： A hydraulic excavator includes a controller having an actuator control section that executes machine control of operating a work implement in accordance with a predetermined condition in a case in which a work implement is positioned in a deceleration area, and that does not execute machine control in a case in which the work implement is positioned in a non-deceleration area. The controller further includes an operation deciding section that decides operation of the work implement on the basis of an operation amount of an operation device, and a display control section that displays, on a display device, a positional relationship among the work implement, a target surface and a boundary line between the deceleration area and the non-deceleration area. The actuator control section executes machine control while changing the position of the boundary line depending on a result of the decision by the operation deciding section, and the display control section changes the display position of the boundary line on the display device, depending on the result of the decision by the operation deciding section.
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公开(公告)号：US11434623B2
公开(公告)日：2022-09-06
申请号：US16644229
申请日：2018-09-25
发明人： Naoki Hayakawa , Kohei Hiromatsu , Daito Sakai , Shiho Izumi
IPC分类号： G06T7/64 , G06T7/70 , B60R1/00 , E02F3/32 , G01B11/24 , G05B19/19 , G06T11/00 , H04N5/247 , E02F9/26 , G01B11/00
摘要： A measurement controller (20): computes the position of a plane (S1) representing a side surface of a work implement (1A) in an image-capturing-device coordinate system (Co1) on the basis of an image of the side surface of the work implement captured by an image-capturing device (19) and an internal parameter of the image-capturing device; computes the coordinate values of a point on the work implement in the image-capturing-device coordinate system (Co1), the point corresponding to any pixel constituting the work implement on the captured image, on the basis of positional information on the pixel on the captured image and the position of the plane (S1); and converts the coordinate values of the point on the work implement in the image-capturing-device coordinate system, the point corresponding to the pixel, to coordinate values in a work-implement coordinate system (Co3) to output the coordinate values in the work-implement coordinate system (Co3) to a work-machine controller (50) of a hydraulic excavator (1).
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