公开(公告)号：US11384514B2

公开(公告)日：2022-07-12

申请号：US16619585

申请日：2018-07-04

申请人： KOMATSU LTD.

发明人： Yuki Shimano ,  Tomohiro Nakagawa

IPC分类号： E02F9/26 ,  E02F3/32

摘要： An earthmoving machine of a work vehicle or the like includes: a work implement including a bucket having teeth; and a main controller that obtains design data based on a dimension obtained from manufacturing data of a component included in the work implement, and used for calculating the position of the teeth, and uses the design data to calculate the position of the teeth.

公开(公告)号：US10942351B2

公开(公告)日：2021-03-09

申请号：US16062157

申请日：2016-11-29

申请人： KOMATSU LTD.

发明人： Kenji Ohiwa ,  Masao Yamamura ,  Tomohiro Nakagawa

IPC分类号： G02B27/01 ,  E02F3/43 ,  E02F9/22 ,  E02F9/26 ,  E02F3/32

摘要： A work vehicle includes: a main body having a cab; a display device provided in the cab and configured to display work assistance information to be overlaid on an actual view of a work site; a display controller configured to cause the work assistance information to be displayed on the display device; and a bucket position detector configured to detect a position of a bucket relative to the main body. The display controller is configured to cause a display position of the work assistance information on the display device to follow a movement of the bucket. The display controller is configured to change a display manner of the work assistance information on the display device based on the position detected by the bucket position detector, when the bucket is moved relative to the cab in a forward direction and a rearward direction.

公开(公告)号：US09382693B2

公开(公告)日：2016-07-05

申请号：US14380851

申请日：2014-04-28

申请人： KOMATSU LTD.

发明人： Takeo Yamada ,  Tomohiro Nakagawa

IPC分类号： E02F9/22 ,  E02F9/14 ,  F15B11/10 ,  F15B13/04 ,  F16K31/42 ,  G05D7/06 ,  E02F9/20 ,  F15B21/08

CPC分类号： E02F9/2221 ,  E02F9/14 ,  E02F9/2012 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  F15B11/10 ,  F15B13/0401 ,  F15B21/08 ,  F15B2211/575 ,  F15B2211/6316 ,  F15B2211/6346 ,  F15B2211/6355 ,  F15B2211/6653 ,  F15B2211/67 ,  F16K31/42 ,  G05D7/0641 ,  Y10T137/0379 ,  Y10T137/87113

摘要： A hydraulic excavator is provided with an arm cylinder, an arm switching valve, a sixth pilot pressure control valve, a sixth electromagnetic proportional valve, a sixth upstream pilot flow path, a sixth hydraulic pressure sensor, and a control section. The control section selects at least one item of current value information from a plurality of items of current value information on the basis of a hydraulic pressure that is detected by the sixth hydraulic pressure sensor. The control section is configured to set a current value of a current that is output to the sixth electromagnetic proportional valve on the basis of the current value information that is selected.

摘要翻译： 液压挖掘机设有臂缸，臂切换阀，第六先导压力控制阀，第六电磁比例阀，第六上游先导流路，第六液压传感器和控制部。 控制部基于由第六液压传感器检测到的液压，从多个当前值信息项中选择至少一个当前值信息。 控制部被配置为基于所选择的当前值信息来设定输出到第六电磁比例阀的电流的当前值。

公开(公告)号：US08788157B2

公开(公告)日：2014-07-22

申请号：US14063082

申请日：2013-10-25

申请人： Komatsu Ltd.

发明人： Satoru Shintani ,  Tomohiro Nakagawa ,  Ryouichi Nagasaka

IPC分类号： G06F7/70 ,  G06F19/00 ,  G06G7/00 ,  G06G7/76 ,  E02F9/20 ,  E02F9/26 ,  E02F5/32 ,  E02F3/76 ,  E02F9/22 ,  E02F3/96

CPC分类号： E02F9/20 ,  E02F3/7609 ,  E02F3/961 ,  E02F5/32 ,  E02F9/2004 ,  E02F9/22 ,  E02F9/26

摘要： A method for driving a ripper is provided in which the movement of a ripper attached to the rear of the body of a bulldozer is controlled. The method includes a first step in which the ripper is operated while the bulldozer is moving forward or is stopped, a second step in which the bulldozer is reversed and the ripper is raised, and a third step in which the ripper is automatically raised.

摘要翻译： 提供一种用于驱动松土机的方法，其中控制附着在推土机主体后部的松土机的运动。 该方法包括第一步骤，其中在推土机向前移动或停止的同时操作松土机，第二步骤，推土机反转并且松土机升高，第三步骤，松土机自动升高。

公开(公告)号：US10662624B2

公开(公告)日：2020-05-26

申请号：US15781802

申请日：2016-11-29

申请人： KOMATSU LTD.

发明人： Kenji Ohiwa ,  Masao Yamamura ,  Tomohiro Nakagawa

IPC分类号： E02F9/26

摘要： A work vehicle includes: a work implement having a bucket; a main body to which the work implement is attached, and having a cab; a display device provided in the cab and configured to overlay and thus display work assistance information on an actual view of a work site; a bucket teeth position calculator configured to calculate a position of teeth of the bucket of the work implement in an available display area of the display device; and a following process unit configured to display the work assistance information to follow movement of the bucket of the work implement in the available display area of the display device only at a position above the position of the teeth of the bucket of the work implement as calculated by the bucket teeth position calculator.

公开(公告)号：US11453997B2

公开(公告)日：2022-09-27

申请号：US16652820

申请日：2019-01-22

申请人： KOMATSU LTD.

发明人： Kenji Ohiwa ,  Tomohiro Nakagawa ,  Ryuji Kanda

IPC分类号： E02F3/96 ,  E02F9/26 ,  E02F9/22

摘要： A work implement includes a breaker. Sensors detect an attitude of the work implement. A pilot valve controls the operation of the breaker. A controller controls the pilot valve. The controller detects, from the attitude of the work implement obtained by the sensors, a distance between a tip of the breaker and a striking limit. When it is determined that the tip of the breaker has reached the striking limit, the controller controls the pilot valve to stop the operation of the breaker.

公开(公告)号：US10655305B2

公开(公告)日：2020-05-19

申请号：US16064635

申请日：2016-11-29

申请人： KOMATSU LTD.

发明人： Kenji Ohiwa ,  Masao Yamamura ,  Tomohiro Nakagawa

IPC分类号： E02F9/26 ,  E02F9/20 ,  G02B27/01 ,  G06T17/05 ,  E02F3/43

摘要： A work vehicle includes a work implement, a main body, a display device, and a display controller. To the main body, the work implement is attached, and the main body has a cab. The display device is provided in the cab and configured to overlay and thus display work assistance information on an actual view of a work site. The display controller causes the display device to display target design topography as work assistance information. When a work starts, the display controller causes the display device to display final target design topography that is achieved after the work is completed, and subsequently, switches to displaying target design topography to be achieved depending on a working step performed.

公开(公告)号：US11105072B2

公开(公告)日：2021-08-31

申请号：US16061458

申请日：2016-11-29

申请人： KOMATSU LTD.

发明人： Kenji Ohiwa ,  Masao Yamamura ,  Tomohiro Nakagawa

IPC分类号： E02F9/26 ,  B60K35/00 ,  E02F9/16

摘要： A work vehicle includes: a display device provided in a cab and configured to display work assistance information to be overlaid on an actual view of a work site; a bucket position detector configured to detect a position of a bucket; and a display controller configured to control a content to be displayed on the display device and configured to cause the work assistance information to be displayed around the bucket while causing the work assistance information to follow the movement of the bucket based on the detected position. When work assistance information becomes close to a boundary of a display area of the display device due to the movement of the bucket, the display controller is configured to cause the work assistance information to be displayed on the display device with a relative position between the work assistance information and the bucket in the display area being changed.

公开(公告)号：US10364546B2

公开(公告)日：2019-07-30

申请号：US15118238

申请日：2016-03-17

申请人： KOMATSU LTD.

发明人： Yuki Shimano ,  Tomohiro Nakagawa ,  Masashi Ichihara ,  Jin Kitajima

IPC分类号： E02F3/43 ,  E02F3/96 ,  E02F9/22 ,  E02F9/26 ,  E02F9/20 ,  E02F3/32

摘要： A distance obtaining unit obtains the distance between a work implement and a design terrain. A work aspect determining unit determines a work aspect by the work implement. A limit velocity deciding unit limits the velocity of the work implement when the distance between the work implement and the design terrain becomes smaller. When the work aspect is surface compaction work and the distance between the work implement and the design terrain is within a first range of at least a portion that is equal to or less than a predetermined first distance, the limit velocity deciding unit increases the limit velocity of the work implement in comparison to when the work aspect is an aspect of a work other than surface compaction, or cancels the limiting of the velocity of the work implement.

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

IPC分类号： E02F9/12 ,  E02F3/43 ,  E02F9/20 ,  E02F9/26

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.