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公开(公告)号：US20180282977A1
公开(公告)日：2018-10-04
申请号：US15846292
申请日：2017-12-19
发明人： Kohei HIROMATSU , Shiho Izumi , Yasuhiko Kanari , Daito Sakai
摘要： When a work implement is actuated in such a manner that a work point is located at each of a plurality of positions on a datum line, a first work point position computing section calculates a position of the work point at each of the plurality of positions. A calibration value computing section calculates calibration values of angle conversion parameters (αbm, βbm, αam, βam, αbk, βbk), dimension parameters (Lbm, Lam, Lbk), and line parameters (tilt tan θ, intercept Zline) using the fact that the positions of the work point at each of the plurality of positions calculated by the first work point position computing section can satisfy a linear equation indicating a datum line. A parameter update section reflects the calibration values calculated by the calibration value computing section in computation by a corresponding computing section that is one of the angle computing section and the first work point position computing section.
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公开(公告)号：US20150219123A1
公开(公告)日：2015-08-06
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).
摘要翻译： 一种施工机械，包括：摆动结构（50）; 液压泵（1）; 用于使用来自液压泵（1）的液压流体驱动摆动结构（50）的液压马达（3）; 用于在或不借助所述液压马达（3）驱动所述摆动结构（50）的电动机（14）。 以及由来自液压泵1的液压流体驱动的液压致动器（16），液压致动器可与摆动结构（50）一起操作。 当摆动结构（50）与液压致动器（16）一起操作时，仅使用电动机（14）摆动摆动结构（50）。
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公开(公告)号：US12084841B2
公开(公告)日：2024-09-10
申请号：US17635733
申请日：2020-08-20
发明人： Akira Kanazawa , Hiroyuki Yamada , Shiho Izumi , Shinya Imura
摘要： A construction management device computes a risk indicative of a degree of danger with which an accident occurs on the basis of information relating at least to a position of a worker measured by a worker position measuring device and a worker biometrical information measuring device, information relating at least to a position of a hydraulic excavator measured by a machine body position measuring device, a machine body posture measuring device, a machine front implement posture measuring device, and a machine operator biometrical information measuring device, personal information on a worker and an operator registered in a worker information registration device, and information on a construction environment from an environment information registration device, and outputs the computed risk as a coordinate risk associated with coordinates of the construction environment to a risk display device such that the computed risk is displayed in a map format on the risk display device.
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公开(公告)号：US12000117B2
公开(公告)日：2024-06-04
申请号：US17767986
申请日：2020-10-13
发明人： Hiroyuki Yamada , Shinya Imura , Shiho Izumi
CPC分类号： E02F9/262 , E02F9/2033 , E02F9/24 , G08B21/22
摘要： A construction assisting system including a controller that performs construction assistance processing on the basis of positional relation between a worker and a hydraulic excavator, the construction assisting system including: an approach intention detecting device that detects an intention of the worker to approach the hydraulic excavator; an approach intention presenting device that presents a detection result of the approach intention detecting device to an operator of the hydraulic excavator; and an approach confirmation obtaining device that obtains a confirmation state of the operator of the hydraulic excavator for contents presented by the approach intention presenting device, the controller performing the construction assistance processing on the basis of position information of the worker when the operator of the hydraulic excavator denies the approach of the worker or when the operator of the hydraulic excavator does not confirm the intention of the worker to approach. It is thereby possible to perform construction assistance according to the intention of the worker, and further improve safety of the worker while suppressing a decrease in work efficiency.
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公开(公告)号：US11891776B2
公开(公告)日：2024-02-06
申请号：US17419366
申请日：2020-02-14
发明人： Hiroyuki Yamada , Yoshiyuki Tsuchie , Shiho Izumi
CPC分类号： E02F9/2041 , E02F9/123 , E02F9/262 , E02F9/265 , E02F3/32 , E02F3/439 , E02F9/2004 , E02F9/2271 , E02F9/2285 , E02F9/2292 , E02F9/2296
摘要： When an automatic operation is finished, a detection process for detecting a ground contactable range where a work implement can be set is carried out on a basis of terrain profile information acquired by laser scanners, and, when the ground contactable range is detected, an automatic operation command signal for placing the work implement in contact with the ground contactable range is generated, whereas when the ground contactable range is not detected, an automatic operation command signal for placing the work implement in a predetermined standby posture is generated. As a result, a suitable standby posture can be taken according to the surrounding conditions when the automatic operation is finished.
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公开(公告)号：US11708682B2
公开(公告)日：2023-07-25
申请号：US16490238
申请日：2018-04-26
CPC分类号： E02F3/435 , E02F3/32 , E02F3/38 , E02F9/2004 , E02F9/2271 , E02F9/264 , E02F9/265
摘要： A hydraulic excavator includes a computer-aided construction controller for performing machine control to operate a front work implement based on detected results from posture sensors and predetermined conditions. The computer-aided construction controller has a calibration posture storing section that stores at least one predetermined calibration posture of the front work implement for calibrating the posture sensors, and a calibration posture controlling section that carries out the machine control to inactivate the hydraulic actuators if detection target values of the posture sensors in the calibration posture and the detected results from the posture sensors are equal to each other. The time required for calibration can thus be shortened by increasing the operability for adjusting a calibration posture.
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公开(公告)号：US11505923B2
公开(公告)日：2022-11-22
申请号：US16644309
申请日：2018-12-17
发明人： Kohei Hiromatsu , Shiho Izumi , Daito Sakai
摘要： A construction machine that can display various work devices including a bucket on a display device without causing a sense of discomfort is provided. A display controller is configured to deform a first drawing figure to create a first post-deformation drawing figure such that a triangle having vertexes at a first coupling point, a second coupling point and a first monitor point in the first drawing figure becomes congruent with a triangle having vertexes at the first coupling point, the second coupling point and the first monitor point in a coordinate system on an image on a display device, and arrange the first post-deformation drawing figure on a screen of the display device such that positions of the first coupling point, the second coupling point and the first monitor point in the first post-deformation drawing figure are arranged correspondingly to positions of the first coupling point, the second coupling point and the first monitor point, respectively, in the coordinate system on the image.
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公开(公告)号：US11313107B2
公开(公告)日：2022-04-26
申请号：US16639793
申请日：2018-10-30
摘要： A controller outputs a first velocity (first limiting velocity) as a limiting velocity for a boom cylinder when a boom lowering operation amount is smaller than a first operation amount, and outputs a second velocity when the boom lowering operation amount is equal to or larger than the first operation amount. The first velocity is set to decrease according to a decrease in a target surface distance. The second velocity is defined by a weighted average of the first velocity and a third velocity (second limiting velocity) set to change according to one of the target surface distance and the boom lowering operation amount of the operation device, and is set such that an increase in the boom lowering operation amount reduces a weight for the first velocity while increasing a weight for the third velocity.
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公开(公告)号：US10801187B2
公开(公告)日：2020-10-13
申请号：US16090605
申请日：2017-02-28
发明人： Shiho Izumi , Ryuu Narikawa , Kouji Ishikawa , Daito Sakai , Takahiko Kurose
摘要： Provided is a work machine that is equipped with a control unit that executes area limiting control with respect to a work device. The control unit includes: a position computing section that calculates the position, on an operation plane, of the forward end (first reference point) of a bucket and the rear end (second reference point) of the bucket; and a first distance computing section that calculates the distances in the operating plane from the first reference point and the second reference point to the target face A to be controlled. When the smaller one of the two distances is equal to or lower than a threshold during area limiting control, the control unit corrects an operation signal output from an operation lever device so as to reduce the operating speed of a hydraulic actuator that is a control target of the operation signal.
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公开(公告)号：US10435870B2
公开(公告)日：2019-10-08
申请号：US15764425
申请日：2016-10-05
摘要： A hydraulic excavator includes: a hydraulic pump driven by power generated by an engine; a work device that operates by a plurality of hydraulic cylinders driven by power generated by the hydraulic pump; an actuator control section that controls the boom cylinder in such a manner that a tip end of a bucket is located on or above a target surface; a control point position calculation section that calculates a bucket claw tip position on the basis of angle sensors; and a power generator control section that imposes more limitations on output power ranges of the engine and the hydraulic pump when a distance between the claw tip position and the target surface is equal to or smaller than a threshold D than those when the distance between the claw tip position and the target surface is larger than the threshold D.
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