-
公开(公告)号：US20190078291A1
公开(公告)日：2019-03-14
申请号：US15757096
申请日：2017-04-10
Applicant: KOMATSU LTD.
Inventor： Yuki SHIMANO , Toru MATSUYAMA , Takuya SONODA
Abstract: An earthmoving machine includes a work implement, a distance calculation unit, and a hydraulic cylinder control unit. The work implement includes a boom, an arm, and a bucket. The distance calculation unit calculates a distance between a monitoring point in the bucket and design topography representing an aimed shape of a land grading target. The hydraulic cylinder control unit outputs a command signal for lowering the boom when the distance between the monitoring point and the design topography is equal to or smaller than a prescribed value and when the bucket is expected to move in such a direction that the monitoring point moves away from the design topography as a result of an operation of the arm.
-
公开(公告)号：US20190078290A1
公开(公告)日：2019-03-14
申请号：US15757084
申请日：2017-07-14
Applicant: KOMATSU LTD.
Inventor： Takeo YAMADA , Ayumi OHKUMA , Toru MATSUYAMA
Abstract: A work machine according to an aspect includes: a dipper stick; a boom; a cylinder for driving the boom; an operation apparatus for operating the dipper stick; and a controller for performing intervention control by using the boom in accordance with an operation command issued from the operation apparatus to achieve land grading. The controller determines whether or not the operation command from the operation apparatus indicates an amount greater than or equal to a predetermined amount, and corrects a speed of the cylinder when the operation command from the operation apparatus indicates an amount greater than or equal to the predetermined amount.
-
公开(公告)号：US20160273193A1
公开(公告)日：2016-09-22
申请号：US14410832
申请日：2014-09-05
Applicant: KOMATSU LTD.
Inventor： Toru MATSUYAMA , Takeshi TAKAURA
CPC classification number: E02F9/2228 , E02F3/32 , E02F3/435 , E02F3/437 , E02F9/2207 , E02F9/2267 , E02F9/2285 , E02F9/2292 , E02F9/262 , E02F9/265
Abstract: There is provided a hydraulic excavator in which the highly-accurate land leveling work is possible. A boom-lowering pilot conduit connected to a boom-lowering pilot port is provided with a boom-lowering proportional solenoid valve. When an arm dump signal for performing dump operation of an arm is included in a hydraulic pressure signal, a controller sharply increases a current value outputted to the boom-lowering proportional solenoid valve, as compared with when an arm excavation signal for performing excavation operation of the arm is included in the hydraulic pressure signal.
Abstract translation: 提供了一种液压挖掘机，其中可以进行高精度的土地平整工作。 连接到动臂下降先导口的动臂降低先导管设置有动臂下降比例电磁阀。 当在液压信号中包括用于执行臂的倾卸操作的斗杆转向信号时，与用于执行挖掘操作的臂挖掘信号相比，控制器大大增加输出到动臂下降比例电磁阀的电流值 手臂被包含在液压信号中。
-
公开(公告)号：US20160097184A1
公开(公告)日：2016-04-07
申请号：US14238885
申请日：2013-04-12
Applicant: KOMATSU LTD.
Inventor： Toru MATSUYAMA , Yoshiki KAMI , Masashi ICHIHARA
CPC classification number: E02F9/2033 , E02F3/28 , E02F3/435 , E02F9/2029 , E02F9/2221 , E02F9/2292 , E02F9/2296 , E02F9/262 , E02F9/265
Abstract: A construction machine has a work implement and a work implement operating device. The work implement has a boom, arm, and bucket. A limit velocity determining unit determines a limit velocity of the boom from the limit velocity of the entire work implement, the arm target velocity, and the bucket target velocity. The distance when the blade tip of the bucket is positioned outside of the design plane is a positive value and the velocity in a direction from inside of the design plane toward outside of the design plane is a positive value. The first limit condition includes a condition that the limit velocity of the boom is greater than the boom target velocity. When the first limit condition is satisfied, a work implement control unit controls the boom to match the limit velocity of the boom and controls the arm to match the arm target velocity.
Abstract translation: 施工机械具有作业工具和作业工具的操作装置。 工作台具有吊臂，手臂和铲斗。 极限速度确定单元根据整个作业工具的极限速度，臂目标速度和铲斗目标速度来确定起重臂的极限速度。 当铲斗的叶片尖端位于设计平面外部时的距离为正值，并且从设计平面内部到设计平面外侧的方向上的速度为正值。 第一极限条件包括起重臂的极限速度大于起重臂目标速度的条件。 当满足第一限制条件时，工作装置控制单元控制动臂以匹配动臂的极限速度并且控制臂以匹配手臂目标速度。
-
公开(公告)号：US20160069040A1
公开(公告)日：2016-03-10
申请号：US14419507
申请日：2014-09-10
Applicant: KOMATSU LTD.
Inventor： Yoshiki KAMI , Takeo YAMADA , Toru MATSUYAMA , Yuto FUJII , Takeshi TAKAURA
Abstract: A work vehicle includes a speed limit calculation portion, a speed determination portion, an adjustment portion, and a boom speed determination portion. The speed limit calculation portion calculates a speed limit for limiting a speed of a cutting edge of a bucket. The speed determination portion determines whether or not a speed of raising the boom has been lowered when an amount of operation of an arm is smaller than a prescribed amount. The adjustment portion delays speed change to the speed limit. The boom speed determination portion determines a target speed of the boom based on the speed limit after delay by the adjustment portion when it is determined that the speed of raising the boom has been lowered, and determines a target speed of the boom based on the speed limit calculated when it is not determined that the speed of raising the boom has been lowered.
Abstract translation: 工作车辆包括速度限制计算部分，速度确定部分，调节部分和动臂速度确定部分。 速度限制计算部分计算用于限制铲斗的切割刃的速度的速度限制。 当臂的操作量小于规定量时，速度确定部分确定升降臂的升高速度是否已经降低。 调整部分将速度变化延迟到速度限制。 当确定悬臂的升高速度已经降低时，起重臂速度确定部分基于调节部分的延迟之后的速度限制来确定起重臂的目标速度，并且基于速度确定起重臂的目标速度 当没有确定提升吊杆的速度已经降低时计算出的极限。
-
Patent Agency Ranking
公开(公告)号：US20220403617A1
公开(公告)日：2022-12-22
申请号：US17779453
申请日：2020-11-25
Applicant: KOMATSU LTD.
Inventor： Toru MATSUYAMA
Abstract: A distance calculation unit calculates a bucket distance that is a distance between a point on a bucket and a target design surface representing a target shape of an excavation target. An intervention control unit calculates an intervention control amount to suppress a speed of work equipment such that the bucket does not intrude on the target design surface based on the bucket distance. An attachment control unit calculates an attachment control amount to rotate the bucket around an attachment axis such that an edge of the bucket and the target design surface approach each other in a parallel state. An attachment limiting unit limits rotation of the bucket around the attachment axis such that the bucket distance is not increased by a movement of the work equipment based on the intervention control amount and the attachment control amount.
-
公开(公告)号：US20150050110A1
公开(公告)日：2015-02-19
申请号：US14526895
申请日：2014-10-29
Applicant: KOMATSU LTD.
Inventor： Toru MATSUYAMA , Yoshiki KAMI , Shin KASHIWABARA , Masashi ICHIHARA
Abstract: An excavation control system includes a working unit having a bucket, a designed landform data storage part storing designed landform data, a bucket position data generation part that generates bucket position data, a designed surface data generation part, and an excavation limit control part. The designed surface data generation part generates superior and subordinate designed surface data based on the designed landform and bucket position data. The superior designed surface data indicates a superior designed surface corresponding to a position of the bucket. The subordinate designed surface data indicates a first subordinate designed surface linked to the superior designed surface. The designed surface data generation part generates shape data indicating shapes of the superior designed surface and the first subordinate designed surface. The excavation limit control part automatically adjusts a position of the bucket.
Abstract translation: 挖掘控制系统包括具有铲斗的作业单元，存储设计地形数据的设计地形数据存储部，产生铲斗位置数据的铲斗位置数据生成部，设计面数据生成部以及挖掘极限控制部。 设计的表面数据生成部分基于设计的地形和铲斗位置数据，生成优越的从属设计的表面数据。 优良设计的表面数据表示对应于铲斗位置的优良设计表面。 从属设计的表面数据表示连接到上级设计表面的第一个从属设计表面。 设计的表面数据生成部生成表示上述设计表面和第一从属设计表面的形状的形状数据。 挖掘限制控制部分自动调整铲斗的位置。
-
公开(公告)号：US20230033938A1
公开(公告)日：2023-02-02
申请号：US17778500
申请日：2020-11-25
Applicant: KOMATSU LTD.
Inventor： Toru MATSUYAMA
Abstract: A distance calculation unit calculates a first distance that is a distance between a first bucket point being a point on a bucket and a target design surface representing a target shape of an excavation target. The distance calculation unit calculates a second distance that is a distance between the target design surface and a second bucket point. The second bucket point is on the bucket on a straight line passing through the first bucket point and is parallel to an edge of the bucket. A tilt control unit compares the first distance and the second distance to calculate a tilt control amount to rotate the bucket around a tilt axis.
-
公开(公告)号：US20190078289A1
公开(公告)日：2019-03-14
申请号：US15756656
申请日：2017-07-14
Applicant: KOMATSU LTD.
Inventor： Toru MATSUYAMA , Ayumi OHKUMA , Takeo YAMADA
Abstract: A work machine according an aspect includes a work implement, an operation apparatus for operating the work implement, and a controller for controlling the work implement. The controller performs intervention control for raising the work implement based on an operation command from the operation apparatus, decides switching from the intervention control to control of the work implement in accordance with an operation command from the operation apparatus, when the operation command from the operation apparatus is the operation command for raising the work implement or the neutral command based on a result of the determination, and makes an adjustment to gradually change the rising target speed of the work implement to the target speed in accordance with the operation command from the operation apparatus when the speed difference is greater than or equal to a predetermined value.
-
公开(公告)号：US20190032302A1
公开(公告)日：2019-01-31
申请号：US15756240
申请日：2017-07-14
Applicant: KOMATSU LTD.
Inventor： Toru MATSUYAMA , Ayumi OHKUMA , Takeo YAMADA
Abstract: A work machine according an aspect includes a work implement, an operation apparatus for operating the work implement, and a controller for controlling the work implement. The controller performs intervention control for lowering the work implement based on an operation command from the operation apparatus, and reduces a speed of the work implement during the intervention control to stop the work implement before completion of the intervention control.
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.012 seconds)
