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公开(公告)号：US20220220704A1
公开(公告)日：2022-07-14
申请号：US17605742
申请日：2020-06-08
申请人： KOMATSU LTD.
发明人： Kenichi YAMADA , Hiroaki IKEDA
IPC分类号： E02F9/22 , F16H59/44 , F16H59/54 , F16H61/4017 , F16H59/68
摘要： A work vehicle includes a power source, a travel device, a power transmission device, and a control device. The power transmission device includes a hydrostatic continuously variable transmission having a relief valve capable of setting a relief pressure, and is configured to transmit power of the power source to the travel device. The control device includes a relief pressure setting unit configured to set the relief pressure of the relief valve in accordance with a target output value of the travel device.
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公开(公告)号：US20220212597A1
公开(公告)日：2022-07-07
申请号：US17607117
申请日：2020-05-25
申请人： Komatsu Ltd.
摘要： A system of controlling an unmanned vehicle includes: a travel course data acquisition unit that acquires travel course data including blinker data for controlling a blinker provided in an unmanned vehicle; an operation data acquisition unit that acquires operation data of a blinker operation device provided in the unmanned vehicle; and a blinker control unit that controls the blinker based on the blinker data acquired by the travel course data acquisition unit when the operation data is acquired by the operation data acquisition unit at a time when the unmanned vehicle operates based on the travel course data.
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公开(公告)号：US11371218B2
公开(公告)日：2022-06-28
申请号：US16323357
申请日：2017-10-25
申请人： KOMATSU LTD.
发明人： Eiji Ishibashi , Takahiro Shimojo , Akifumi Inamaru , Toshihiro Kawano , Yasuhito Yonezawa , Yosuke Kogawa
摘要： A control system for a work vehicle includes a controller. The controller receives actual topography information of a work target. The controller determines a design surface that is positioned below the actual topography. The controller generates a command signal to move a work implement of the work vehicle along the design surface. The controller determines if slip of the work vehicle has occurred. Upon determining that slip has occurred, the controller changes the design surface to a position equal to or higher than a blade tip position of the work implement when the slip occurred.
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公开(公告)号：US11371217B2
公开(公告)日：2022-06-28
申请号：US16647974
申请日：2019-02-19
申请人： KOMATSU LTD.
发明人： Masaki Daimon
摘要： Work contents by a work implement are more accurately distinguished. Work contents by the work implement include at least two of dozing, piling, and excavation and loading. A controller distinguishes work contents by the work implement. The controller identifies work contents during a period from start of the works until end of the works based on a result of distinction between at least two temporally distant work contents in work records during the period from the start of the works until the end of the works.
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公开(公告)号：US11371208B2
公开(公告)日：2022-06-28
申请号：US16480859
申请日：2018-04-25
申请人： Komatsu Ltd.
发明人： Kota Yamaguchi , Yuji Asai , Toshihiro Yone
摘要： The work equipment for a motor grader includes: a rotary machine main body for rotating an outer gear engaging with an inner gear provided on an inner peripheral surface of an inner ring of a bearing; and a rotary machine lubrication unit provided on a gear cover in a circle rotary machine and for supplying a lubricant to a space, wherein the gear cover is provided in the rotary machine main body, covers the outer gear from the outer peripheral side thereof, forms the space between the outer gear and the gear cover, and is fixed to a drawbar plate.
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公开(公告)号：US11359349B2
公开(公告)日：2022-06-14
申请号：US16086123
申请日：2017-06-19
申请人： KOMATSU LTD.
发明人： Kenji Ohiwa , Tomohiro Nakagawa
摘要： A work vehicle includes a traveling unit, a revolving unit disposed on an upper side of the traveling unit, a work implement disposed on the revolving unit, a revolving driver that revolves the revolving unit, a receiver, an end position setting component, a revolution position sensor, and a drive controller. The receiver directly or indirectly receives information related to a position of an object serving as a target of a revolution of the revolving unit, from the object. The end position setting component sets an end position of a revolution of the revolving unit based on information related to the position of the object. The revolution position sensor senses a revolution position of the revolving unit during a revolution. The drive controller controls the revolving driver based on the revolution position to revolve the revolving unit from a start position of a revolution to the end position.
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公开(公告)号：US11346078B2
公开(公告)日：2022-05-31
申请号：US16480091
申请日：2018-04-25
申请人： Komatsu Ltd.
发明人： Kota Yamaguchi , Yuji Asai , Toshihiro Yone
摘要： A work equipment for a motor grader comprising: a drawbar including: a drawbar plate and an outer peripheral-side rib that is integrally fixed to the drawbar plate so as to protrude from a lower surface of the drawbar plate; and a circle including a circle plate that protrudes outside of the outer peripheral-side rib in the radial direction and forms a lower-side gap between a lower end of the outer peripheral-side rib and the circle plate; and an outer peripheral-side wall portion that is connected to the outer peripheral side of the circle plate, has a cylindrical shape surrounding the outer peripheral-side rib from an outer peripheral side of the outer peripheral-side rib, and forms a clearance between the lower surface of the drawbar plate and the outer peripheral-side wall portion.
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公开(公告)号：US20220162832A1
公开(公告)日：2022-05-26
申请号：US17440922
申请日：2020-05-22
申请人： KOMATSU LTD.
发明人： Tomoki KONDA , Kenjiro SHIMADA , Kazuhiro HATAKE , Yusuke SAIGO
摘要： A work machine comprises: a travel unit; a swing unit provided on the travel unit swingably; an angular velocity sensor that is attached to the swing unit and outputs an azimuthal angular velocity of the swing unit; a measurement device that measures an azimuth of the swing unit; and a controller that corrects the azimuthal angular velocity based on azimuth information measured by the measurement device and controls the swing unit based on the corrected azimuthal angular velocity.
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49.发明申请公开(公告)号：US20220127825A1
公开(公告)日：2022-04-28
申请号：US17423160
申请日：2019-12-19
申请人： Komatsu Ltd.
发明人： Yoshiro Iwasaki
摘要： A control system for a construction machine includes a design surface acquisition unit configured to acquire a design surface that indicates a target shape of a construction target, a target value generation unit configured to generate a target value of an amount of control of working equipment, a prediction unit configured to calculate a predicted value of the amount of control of the working equipment based on the target value and a prediction model for the working equipment, and calculate an amount of drive to control the working equipment based on the predicted value and the design surface, and a command unit configured to output a control command for control of the working equipment based on the amount of drive.
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50.发明申请公开(公告)号：US20220106764A1
公开(公告)日：2022-04-07
申请号：US17420572
申请日：2019-12-19
申请人： Komatsu Ltd.
发明人： Yoshiro Iwasaki , Jun Sasaki
摘要： A control system for a construction machine includes a target value generation unit configured to generate a target value of an amount of control of the working equipment, a prediction model storage unit configured to store a prediction model for the working equipment, a weight data acquisition unit configured to acquire weight data of the bucket, a prediction model update unit configured to update the prediction model based on the weight data, a prediction unit configured to calculate a predicted value of the amount of control of the working equipment based on the target value and the prediction model, and calculate an amount of drive to control the working equipment based on the predicted value, and a command unit configured to output a control command to control the working equipment based on the amount of drive.
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