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21.发明授权公开(公告)号：US09605412B2
公开(公告)日：2017-03-28
申请号：US14760876
申请日：2015-03-24
Applicant: Komatsu Ltd.
Inventor： Katsuhiro Ikegami , Yoshiki Kami , Akinori Baba , Takeshi Takaura
CPC classification number: E02F9/2228 , E02F3/32 , E02F3/435 , E02F3/438 , E02F9/2004 , E02F9/2029 , E02F9/2033 , E02F9/2041 , E02F9/2203 , E02F9/2271 , E02F9/2285 , E02F9/26 , E02F9/264
Abstract: A control system includes: a data acquisition unit that acquires an operation command value and data on a cylinder speed in a state where an operation command of operating a hydraulic cylinder is output; a deriving unit that derives an operation start operation command value when the hydraulic cylinder in a stopped state starts operating and slow-speed operation characteristics indicating a relation between the operation command value and the cylinder speed in a slow-speed area based on the data acquired by the data acquisition unit; a storage unit that stores the operation start operation command value and the slow-speed operation characteristics derived by the deriving unit; and a work machine control unit that controls a work machine based on information stored in the storage unit.
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公开(公告)号：US09556594B2
公开(公告)日：2017-01-31
申请号：US14409209
申请日：2014-09-10
Applicant: KOMATSU LTD.
Inventor： Yuki Shimano , Yuto Fujii , Takeshi Takaura
CPC classification number: E02F9/265 , E02F3/32 , E02F3/435 , E02F9/2029 , E02F9/2221 , E02F9/262
Abstract: A stop control unit carries out control, when a moving speed of a bucket in a direction toward target design topography is the same in both of a first specifying state in which a bucket weight specifying portion specifies a weight of the bucket as large and a second specifying state in which the bucket weight specifying portion specifies a weight of the bucket as small, such that the moving speed of the bucket in the direction toward the target design topography is reduced from a position more distant from the target design topography in the first specifying state than in the second specifying state.
Abstract translation: 当铲斗重量指定部指定铲斗重量大的第一指定状态和铲斗重量指定部分指定铲斗重量的第二指定状态和铲斗重量指定部分指定铲斗重量的第二指定状态时，停止控制单元执行在朝向目标设计地形的方向上的铲斗的移动速度相同的控制 指定铲斗重量指定部指定铲斗的重量的小的状态，使得在朝向目标设计地形的方向上的铲斗的移动速度从第一指定中的距离目标设计地形更远的位置减小 状态比第二指定状态。
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Patent Agency Ranking
公开(公告)号：US20170016211A1
公开(公告)日：2017-01-19
申请号：US15208796
申请日：2016-07-13
Applicant: Komatsu Ltd.
Inventor： Daiki Arimatsu , Yuki Shimano , Takeshi Takaura , Jason Anetsberger
Abstract: Provided is a display system including: a display unit which displays an image; a vehicle body position data acquisition unit which acquires vehicle body position data indicating a position of a vehicle body supporting a work machine; a process position data storage unit which stores process position data indicating a process position of a process target processed by the work machine; and a display controller which displays an image indicating the process position based on the process position data and an image indicating a specific position of the vehicle body on the display unit.
Abstract translation: 提供一种显示系统，包括：显示单元，显示图像; 车体位置数据获取单元，其获取表示支撑作业机械的车体的位置的车体位置数据; 处理位置数据存储单元，存储指示由作业机处理的处理目标的处理位置的处理位置数据; 以及显示控制器，其基于处理位置数据显示指示处理位置的图像，以及在显示单元上显示表示车体的特定位置的图像。
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公开(公告)号：US09447562B2
公开(公告)日：2016-09-20
申请号：US14423452
申请日：2014-09-10
Applicant: KOMATSU LTD.
Inventor： Takeshi Takaura , Yuto Fujii , Yoshiki Kami
CPC classification number: E02F9/2012 , E02F3/437 , E02F9/2004 , E02F9/2029 , E02F9/2246 , E02F9/226 , E02F9/265
Abstract: A work vehicle includes a boom, an arm, a bucket, an arm cylinder, a direction control valve, a calculation portion, and a speed determination portion. The calculation portion calculates an estimated speed of the arm cylinder based on correlation between an amount of movement of the spool of the direction control valve in accordance with an amount of operation of an arm control lever and a speed of the arm cylinder. The speed determination portion determines a target speed of the boom based on the estimated speed of the arm cylinder. When the amount of operation of the arm control lever is smaller than a prescribed amount, the calculation portion calculates a speed higher than a speed of the arm cylinder in accordance with correlation as the estimated speed of the arm cylinder.
Abstract translation: 工作车辆包括吊杆，臂，铲斗，斗杆缸，方向控制阀，计算部分和速度确定部分。 计算部根据臂控制杆的动作量与斗杆缸的转速的关系，算出方向控制阀的阀芯的移动量之间的相关关系来计算斗杆缸的推定速度。 速度确定部分基于臂缸的估计速度来确定起重臂的目标速度。 当臂控制杆的操作量小于规定量时，计算部根据与手臂缸的推定速度的相关关系来计算高于手臂缸的速度的速度。
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公开(公告)号：US09322149B2
公开(公告)日：2016-04-26
申请号：US14372475
申请日：2014-04-24
Applicant: KOMATSU LTD.
Inventor： Takeshi Takaura , Yoshiki Kami , Jin Kitajima
CPC classification number: E02F9/262 , E02F3/32 , E02F3/43 , E02F3/435 , E02F3/439 , E02F9/20 , E02F9/2029 , E02F9/2033 , E02F9/265
Abstract: There is provided a work vehicle in which a work implement can be freely operated. The work vehicle includes: a design surface information acquiring unit for acquiring data of a design surface indicative of a target shape of a work object by the work implement; a cutting edge position computing unit for computing a position of a cutting edge of a bucket; and an operation restricting unit for executing operation restriction control by which, when the cutting edge of the bucket comes closer to the design surface, operation of the work implement is stopped before the cutting edge of the bucket reaches the design surface. In a case where the cutting edge is located away from the design surface in a downward perpendicular direction by a prescribed distance or longer, the operation restricting unit does not execute the operation restriction control.
Abstract translation: 提供了可以自由操作工作装置的作业车辆。 工作车辆包括：设计表面信息获取单元，用于通过工作工具获取指示工作对象的目标形状的设计表面的数据; 用于计算铲斗的切削刃的位置的切削刃位置计算单元; 以及操作限制单元，用于执行操作限制控制，当铲斗的切割边缘靠近设计表面时，在铲斗的切割边缘到达设计表面之前停止作业工具的操作。 在切削刃沿向下垂直方向远离设计表面一定距离或更长的情况下，操作限制单元不执行操作限制控制。
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公开(公告)号：US09284714B2
公开(公告)日：2016-03-15
申请号：US14370069
申请日：2014-04-24
Applicant: KOMATSU LTD.
Inventor： Takeshi Takaura
CPC classification number: E02F3/435 , E02F3/32 , E02F3/425 , E02F9/22 , E02F9/2228 , E02F9/2285 , E02F9/2292 , F15B2211/329 , F15B2211/355 , F15B2211/36 , F15B2211/6316 , F15B2211/6346 , F15B2211/6355 , F15B2211/665 , F15B2211/67 , F15B2211/8613 , Y10T137/87064
Abstract: There is provided a hydraulic excavator in which invasion of a design surface by a work implement can be suppressed. A boom-lowering proportional solenoid valve is provided in a boom-lowering pilot conduit connected to a boom-lowering pilot port. A first pressure sensor detects a pressure generated in the boom-lowering pilot conduit between a control lever and the boom-lowering proportional solenoid valve. A controller controls an opening degree of the boom-lowering proportional solenoid valve based on the pressure detected by the first pressure sensor. The controller gently increases, from zero, a current value outputted to the boom-lowering proportional solenoid valve.
Abstract translation: 提供了可以抑制由工作装置侵入设计表面的液压挖掘机。 在与起重臂下降导向口连接的起重臂下降先导管路中设置有动臂降档比例电磁阀。 第一压力传感器检测在控制杆和动臂下降比例电磁阀之间在动臂下降先导管路中产生的压力。 控制器基于由第一压力传感器检测到的压力来控制起重臂下降比例电磁阀的开度。 控制器从零点轻轻地增加输出到动臂下降比例电磁阀的电流值。
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公开(公告)号：US20150159348A1
公开(公告)日：2015-06-11
申请号：US14355410
申请日：2013-12-06
Applicant: KOMATSU LTD.
Inventor： Takeshi Takaura
IPC: E02F9/22 , E02F9/20 , F16H61/421
CPC classification number: E02F9/2285 , E02F9/2004 , E02F9/2012 , E02F9/2282 , E02F9/2292 , F15B13/0422 , F15B21/008 , F15B2211/6316 , F15B2211/6346 , F15B2211/6355 , F15B2211/67 , F15B2211/8616 , F16H61/421
Abstract: There is provided a hydraulic excavator in which occurrence of minute vibrations in a control lever can be suppressed. The hydraulic excavator includes: a first pilot pressure control valve outputting a pilot pressure in accordance with operation of the control lever; an upstream pilot conduit having one end connected to the first pilot pressure control valve; a proportional solenoid valve connected to the other end of the upstream pilot conduit; a downstream pilot conduit having one end connected to the proportional solenoid valve; and a pilot switching valve for a boom having a second pilot port connected to the other end of the downstream pilot conduit, and controlling operation of the boom. A volume of the upstream pilot conduit is larger than a volume of the downstream pilot conduit.
Abstract translation: 提供了一种液压挖掘机，其中可以抑制控制杆中的微小振动的发生。 液压挖掘机包括：根据控制杆的操作输出先导压力的第一先导压力控制阀; 上游先导管，其一端连接到第一先导压力控制阀; 连接到上游先导管道的另一端的比例电磁阀; 一个下游先导管，其一端连接到比例电磁阀; 以及用于具有连接到下游先导管道的另一端的第二先导端口并且控制起重臂的操作的起重臂的先导换向阀。 上游先导管的体积大于下游先导管的体积。
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