公开(公告)号：US09458597B2

公开(公告)日：2016-10-04

申请号：US14761078

申请日：2015-03-24

Applicant: Komatsu Ltd.

Inventor： Katsuhiro Ikegami ,  Satoshi Ito ,  Akinori Baba

IPC: G06F7/70 ,  E02F3/43 ,  E02F9/26 ,  E02F9/20 ,  E02F3/32 ,  E02F3/42 ,  E02F9/22 ,  F15B11/17 ,  F15B13/06

CPC classification number: E02F3/435 ,  E02F3/32 ,  E02F3/425 ,  E02F9/2004 ,  E02F9/2225 ,  E02F9/2267 ,  E02F9/2271 ,  E02F9/2285 ,  E02F9/26 ,  E02F9/262 ,  E02F9/265 ,  F15B11/17 ,  F15B13/06 ,  F15B2211/20576 ,  F15B2211/255 ,  F15B2211/30525 ,  F15B2211/405 ,  F15B2211/71

Abstract: A control system includes: a control valve control unit that controls a control valve; a data acquisition unit that acquires data on an operation command value and a cylinder speed in a state where an operation command for operating a hydraulic cylinder is output; and a deriving unit that derives operation characteristics in an operation direction of each of a plurality of hydraulic cylinders in relation to the operation command value based on the data acquired by the data acquisition unit. In acquisition of the data by the data acquisition unit, the control valve control unit controls a control valve of one pilot oil passage that is an acquisition object where the data is acquired among the plurality of pilot oil passages to open one pilot oil passage and controls control valves of the other pilot oil passages to close the other pilot oil passages.

Abstract translation: 控制系统包括：控制阀控制单元，其控制控制阀; 在输出用于操作液压缸的操作命令的状态下获取关于操作命令值和气缸速度的数据的数据获取单元; 以及导出单元，其基于由数据获取单元获取的数据，相对于操作命令值导出多个液压缸中的每一个的操作方向上的操作特性。 在数据采集单元采集数据时，控制阀控制单元控制作为在多个先导油路中获取数据的采集对象的一个​​先导油路的控制阀，以打开一个先导油通道并控制 其他先导油路的控制阀关闭其他先导油路。

公开(公告)号：US20240183126A1

公开(公告)日：2024-06-06

申请号：US18285266

申请日：2022-06-15

Applicant: Komatsu Ltd.

Inventor： Satoshi Ito ,  Shota Nakamura

IPC: E02F9/20 ,  E02F9/22 ,  E02F9/26

CPC classification number: E02F9/2033 ,  E02F9/2066 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2296 ,  E02F9/268

Abstract: A work machine having working equipment includes a power source that outputs a driving force for operating the working equipment, a controller, and a solenoid valve controlled by the controller. When it is determined that an abnormality has occurred in the power supply circuit connecting the controller and the solenoid valve, the controller outputs a command for controlling the power source so as to limit an operation of the working equipment.

公开(公告)号：US20160138240A1

公开(公告)日：2016-05-19

申请号：US14761078

申请日：2015-03-24

Applicant: Komatsu Ltd.

Inventor： Katsuhiro Ikegami ,  Satoshi Ito ,  Akinori Baba

IPC: E02F3/43 ,  E02F9/20 ,  F15B13/06 ,  E02F3/42 ,  E02F9/22 ,  F15B11/17 ,  E02F9/26 ,  E02F3/32

CPC classification number: E02F3/435 ,  E02F3/32 ,  E02F3/425 ,  E02F9/2004 ,  E02F9/2225 ,  E02F9/2267 ,  E02F9/2271 ,  E02F9/2285 ,  E02F9/26 ,  E02F9/262 ,  E02F9/265 ,  F15B11/17 ,  F15B13/06 ,  F15B2211/20576 ,  F15B2211/255 ,  F15B2211/30525 ,  F15B2211/405 ,  F15B2211/71

Abstract: A control system includes: a control valve control unit that controls a control valve; a data acquisition unit that acquires data on an operation command value and a cylinder speed in a state where an operation command for operating a hydraulic cylinder is output; and a deriving unit that derives operation characteristics in an operation direction of each of a plurality of hydraulic cylinders in relation to the operation command value based on the data acquired by the data acquisition unit. In acquisition of the data by the data acquisition unit, the control valve control unit controls a control valve of one pilot oil passage that is an acquisition object where the data is acquired among the plurality of pilot oil passages to open one pilot oil passage and controls control valves of the other pilot oil passages to close the other pilot oil passages.

Abstract translation: 控制系统包括：控制阀控制单元，其控制控制阀; 在输出用于操作液压缸的操作命令的状态下获取关于操作命令值和气缸速度的数据的数据获取单元; 以及导出单元，其基于由数据获取单元获取的数据，相对于操作命令值导出多个液压缸中的每一个的操作方向上的操作特性。 在数据采集单元采集数据时，控制阀控制单元控制作为在多个先导油路中获取数据的采集对象的一个​​先导油路的控制阀，以打开一个先导油通道并控制 其他先导油路的控制阀关闭其他先导油路。