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公开(公告)号：US11578473B2
公开(公告)日：2023-02-14
申请号：US16636930
申请日：2019-01-21
Applicant: KOMATSU LTD.
Inventor： Yukihisa Takaoka , Kazuki Kure
IPC: E02F9/20
Abstract: At least a portion of a first target design topography is positioned below an actual topography. At least a portion of a second target design topography is positioned below the actual topography and is inclined with respect to the first target design topography. A controller generates a command signal to operate a work implement according to the first target design topography in an area where the first target design topography is positioned above the second target design topography. The controller generates a command signal to operate the work implement according to the second target design topography in an area where the second target design topography is positioned above the first target design topography.
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公开(公告)号：US11161546B2
公开(公告)日：2021-11-02
申请号：US16332179
申请日：2017-07-31
Applicant: KOMATSU LTD.
Inventor： Kei Nakano , Hiroki Yamamoto , Kazuki Kure , Souichi Tsumura
Abstract: When left and right steering levers are both operated and the operation amount of the left lever is larger than that of the right lever, a controller calculates a correction left operation amount of the left lever according to the operation amount of the right lever, and controls a left steering clutch so as to cause a vehicle body to turn toward the left in accordance with the correction left operation amount. When left and right steering levers are both operated and the operation amount of the right lever is larger than that of the left lever, the controller calculates a correction right operation amount of the right lever according to the operation amount of the left lever, and controls a right steering clutch so as to cause the vehicle body to turn toward the right in accordance with the correction right operation amount.
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公开(公告)号：US11447933B2
公开(公告)日：2022-09-20
申请号：US16975859
申请日：2019-02-27
Applicant: KOMATSU LTD.
Inventor： Yukihisa Takaoka , Kazuki Kure
Abstract: A control system for a work vehicle includes a controller. The controller determines a work zone at a work site. The controller determines a target design topography at least partially positioned below an actual topography at the work site. The controller specifies a non-work zone. The non-work zone is a portion in which the actual topography is positioned below the target design topography in the work zone. The controller modifies the work zone based on the non-work zone. The controller generates a command signal to operate a work implement of the work vehicle according to the modified work zone and the target design topography.
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公开(公告)号：US08875824B1
公开(公告)日：2014-11-04
申请号：US14131489
申请日：2013-09-20
Applicant: Komatsu Ltd.
Inventor： Hironori Yamamitsu , Kazuki Kure , Hiroshi Nakagami , Taira Ozaki
CPC classification number: B60R19/52
Abstract: A radiator grill is mounted on a work vehicle and includes a frame and a plate member. The plate member is supported by the frame and having a plurality of through-holes aligned in a first direction and a second direction orthogonal to the first direction. Each of the through-holes has a pair of circular parts aligned in the first direction, and an interconnecting part having a width in the second direction that is smaller than diameters of the circular parts, the interconnecting part interconnecting the circular parts. The through-holes are disposed alternately so that one of the circular parts of one of two adjacent ones of the through-holes adjacent to each other in the second direction is aligned with the interconnecting part of the other of the two adjacent ones of the through-holes in the second direction.
Abstract translation: 散热器格栅安装在作业车辆上，并且包括框架和板构件。 板构件由框架支撑并且具有沿与第一方向正交的第一方向和第二方向对准的多个通孔。 每个通孔具有沿第一方向对准的一对圆形部分，以及互连部分，其互连部分具有在第二方向上的宽度小于圆形部分的直径。 通孔交替设置，使得在第二方向上彼此相邻的两个相邻的通孔中的一个的一个圆形部分与两个相邻的通孔中的另一个的互连部分对准 在第二个方向。
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公开(公告)号：US11149412B2
公开(公告)日：2021-10-19
申请号：US16632967
申请日：2018-11-22
Applicant: KOMATSU LTD.
Inventor： Yukihisa Takaoka , Kazuki Kure
Abstract: A controller for a work machine acquires current topography data indicating a current topography to be worked. The controller determines a target design topography based on the current topography. The target design topography indicates a target trajectory of a work implement. The controller generates a command signal to operate the work implement to excavate the current topography according to the target design topography. The controller acquires excavated topography data indicating a current topography that has been excavated. The controller modifies the target design topography to move the target design topography upwardly based on the excavated current topography.
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Patent Agency Ranking
公开(公告)号：US09580889B2
公开(公告)日：2017-02-28
申请号：US14345993
申请日：2013-09-19
Applicant: KOMATSU LTD.
Inventor： Kazuki Kure
IPC: E02F9/22 , F02D29/02 , F01P5/04 , E02F9/20 , F01P1/06 , F15B11/08 , F02D29/04 , E02F3/76 , F02N11/08 , F01P11/06 , E02F9/08
CPC classification number: E02F9/226 , E02F3/7604 , E02F3/7609 , E02F9/0866 , E02F9/0891 , E02F9/2066 , E02F9/2246 , E02F9/2292 , E02F9/2296 , F01P1/06 , F01P5/04 , F01P5/043 , F01P2011/063 , F02D29/02 , F02D29/04 , F02N11/0818 , F15B11/08 , F15B2211/66
Abstract: A work vehicle of the present invention includes an engine, a cooling core, a fan, a hydraulic drive unit, and an idle reduction execution unit. The cooling core is mounted in the work vehicle. The fan is configured to blow air to the cooling core and to be capable of making regular and reverse rotations. The hydraulic drive unit is configured to drive the fan by driving the engine. The idle reduction execution unit is configured to stop the engine based on a state of rotation of the fan caused by the hydraulic drive unit and based on an idle state. The idle reduction execution unit stops the engine on a condition that the fan makes regular rotation and the idle state has continued for a predetermined time, and does not stop the engine on a condition that the fan makes reverse rotation.
Abstract translation: 本发明的作业车辆包括发动机，冷却芯，风扇，液压驱动单元和空转还原执行单元。 冷却芯安装在工作车辆中。 风扇被配置为将空气吹向冷却芯并且能够进行正常和反向旋转。 液压驱动单元被配置为通过驱动发动机来驱动风扇。 怠速减速执行单元被构造成基于由液压驱动单元引起的风扇的旋转状态并基于怠速状态来停止发动机。 怠速降低执行单元在风扇正常旋转并且怠速状态持续预定时间的状态下停止发动机，并且在风扇反向旋转的条件下不停止发动机。
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公开(公告)号：US11746504B2
公开(公告)日：2023-09-05
申请号：US16636937
申请日：2019-02-19
Applicant: KOMATSU LTD.
Inventor： Yukihisa Takaoka , Kazuki Kure
CPC classification number: E02F9/262 , E02F9/2041 , E02F9/2045 , E02F9/265
Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes a controller. The controller acquires an end position and a target distance of work performed by a work vehicle. The controller determines, as a start position, a position that is away from the end position by the target distance. The controller generates a command signal to start work from the start position toward the end position and to operate the work implement according to a target design topography. The controller modifies the target distance based on a result of the work.
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公开(公告)号：US10787127B2
公开(公告)日：2020-09-29
申请号：US15699175
申请日：2017-09-08
Applicant: The University of Tokyo , KOMATSU LTD.
Inventor： Atsushi Yamashita , Hajime Asama , Hiromitsu Fujii , Wei Sun , Takashi Tsukamoto , Kazuki Kure
Abstract: A display system includes a work vehicle, a first camera, a computation device, and a display device. The first camera is attached to one side portion of the work vehicle. The first camera has an optical axis inclined downward with respect to a horizontal direction. The first camera captures a first image including a surrounding environment of the work vehicle and a first vehicle body portion. The computation device generates a display image from the first image. The display image includes a surrounding image that depicts the surrounding environment of the work vehicle in a bird's-eye view, and a vehicle image. The vehicle image may combine a vehicle model depicted in the work vehicle and an image of the first vehicle body portion captured by the first camera, or may be an image of the first vehicle body portion. The display device displays the display image.
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公开(公告)号：US10450719B2
公开(公告)日：2019-10-22
申请号：US16386488
申请日：2019-04-17
Applicant: KOMATSU LTD.
Inventor： Takashi Tsukamoto , Kazuki Kure , Etsuo Fujita , Sueyoshi Nishimine , Masahiro Ikeda
Abstract: A bulldozer includes a blade disposed in front of a vehicle body. First and second cameras are disposed to the left and right of the vehicle body, respectively. A first optical axis of the first camera faces forward and downward. The first camera overlaps a left crawler belt as seen in a plan view of the bulldozer and is arranged to capture a first image of a gap between a lower edge of the blade and the left crawler belt. A second optical axis of the second camera faces forward and downward. The second camera overlaps a right crawler belt as seen in a plan view of the bulldozer and is arranged to capture a second image of a gap between a lower edge of the blade and the right crawler belt. A display is configured to display the first and second images side-by-side.
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公开(公告)号：US10415212B2
公开(公告)日：2019-09-17
申请号：US15503440
申请日：2016-09-09
Applicant: KOMATSU LTD.
Inventor： Takashi Tsukamoto , Kazuki Kure , Etsuo Fujita , Sueyoshi Nishimine , Masahiro Ikeda
Abstract: A bulldozer has a protective structure. The protective structure includes a left pillar portion, a right pillar portion, and a beam portion. The left pillar portion is disposed to the left of a cab and extends in the up-down direction. The right pillar portion is disposed to the right of the cab and extends in the up-down direction. The beam portion is disposed above the cab and couples the left pillar portion and the right pillar portion. A first camera is attached to the left pillar portion and is disposed so that a first optical axis faces forward and downward. A second camera is attached to the right pillar portion and is disposed so that a second optical axis faces forward and downward.
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