360 patents
Utility
Unmanned Vehicle Management System and Unmanned Vehicle Management Method
18 Jan 24
An unmanned vehicle management system includes: a protection area setting unit that sets a protection area where entry of an unmanned vehicle traveling around a sprinkler vehicle is prohibited on the basis of a sprinkling state of a sprinkle spray provided in the sprinkler vehicle moving at a work site; and an output unit that outputs the protection area set by the protection area setting unit.
Kazuma Takeda, Takashi Hiranaka, Kenta Osagawa
Filed: 20 Jan 22
Utility
Work machine and method of controlling the same
16 Jan 24
A controller controls a first drive source and a second drive source based on a moving speed of a motor grader measured by a speed sensor and a turning angular velocity of the motor grader measured by an IMU, to thereby independently control a rotation speed of each of a right front wheel and a left front wheel.
Shintaro Kobayashi, Yuki Arai, Takeshi Kamimae
Filed: 26 Feb 19
Utility
Management system
16 Jan 24
A management system includes a position detection unit which obtains a position of a work machine, a posture detection unit which obtains a posture of the work machine, an object detection unit which obtains a three-dimensional shape of a buried object, a position calculation unit which obtains a position of the buried object by using the position of the work machine obtained by the position detection unit, the posture of the work machine obtained by the posture detection unit, and the three-dimensional shape of the buried object obtained by the object detection unit, and an information acquisition unit which acquires buried object information including at least the position of the buried object obtained by the position calculation unit.
Ichiro Nakano, Toyohisa Matsuda
Filed: 13 Jan 23
Utility
Display System and Display Method
11 Jan 24
A display method includes: acquiring a visible light image of a first target captured by a visible light imaging device; acquiring an infrared image of a second target captured by an infrared imaging device; calculating a visible light distance from the visible light imaging device to the first target for each of first partitioned areas defined in the visible light image; calculating an infrared distance from the infrared imaging device to the second target for each of second partitioned areas defined in the infrared image to correspond to the first partitioned areas; determining whether a difference between the visible light distance and the infrared distance is larger than a threshold for one of the first partitioned areas and one of the second partitioned areas corresponding to each other; combining the second partitioned area in which the difference is larger than the threshold with the visible light image to be displayed.
Masamitsu Kitahashi
Filed: 11 Jan 22
Utility
Crawler-type Work Machine
11 Jan 24
A bulldozer causes left and right steering clutches to engage and left and right steering brakes to release when an operating amount of a steering lever is greater than a first predetermined amount and less than a second predetermined amount, and drives a turning motor so that the rotation speed of an inside output shaft becomes lower than the rotation speed of an outside output shaft as the operating amount of the steering lever increases.
Takeshi YOSHIKAWA, Hiroaki TAKESHIMA, Naoya AKIYAMA, Toshikazu OKADA, Kazushi NAKATA, Osamu YATSUDA
Filed: 5 Nov 21
Utility
Management system of work site and management method of work site
9 Jan 24
A management system of a work site in which an unmanned vehicle and a manned vehicle operate in a mixed manner includes: a determination unit that determines whether or not the manned vehicle exists in a predetermined area of the work site; and a command unit that outputs a work command to cause the unmanned vehicle or the manned vehicle to travel to a work point set in a work place based on the determination result.
Takashi Hiranaka, Isao Toku
Filed: 2 Apr 20
Utility
Crawler-type Work Machine
4 Jan 24
A controller provided in a bulldozer maintains the engagement of an inside steering clutch over a predetermined period beginning from a switching start point at which switching starts, when switching from a slow turn mode to a pivot turn mode, and when switching from the pivot turn mode to the slow turn mode, maintains the braking of an inside steering brake over a predetermined period beginning from a switching start point at which the switching starts.
Takeshi YOSHIKAWA, Hiroaki TAKESHIMA, Naoya AKIYAMA, Kazushi NAKATA, Osamu YATSUDA, Shinichi OTAKA, Yuji NAMEKI, Ryouichi NAGASAKA, Takaomi KOMURA
Filed: 5 Nov 21
Utility
Crawler-type Work Machine
4 Jan 24
A controller of a crawler type work machine controls left and right steering clutches, left and right steering brakes, and a turning motor to cause the crawler type work machine to turn in either a slow turning mode or a pivot turning mode.
Takeshi YOSHIKAWA, Hiroaki TAKESHIMA, Naoya AKIYAMA, Toshikazu OKADA, Kazushi NAKATA, Osamu YATSUDA
Filed: 3 Dec 21
Utility
Work Machine, Controller for Work Machine, and Method of Controlling Work Machine
28 Dec 23
A work machine is provided that can achieve an automatic brake retention function without hindering work.
Yuki OKAMUNE, Tsukasa KITAMURA, Akihiro KYOZU, Takeshi KAMIMAE
Filed: 5 Nov 21
Utility
Hydrocarbon Deposition Amount Estimation Device, Hydrocarbon Deposition Amount Estimation Method, Control Device, and Exhaust Gas Purification System
28 Dec 23
This hydrocarbon deposition amount estimation device comprises a hydrocarbon deposition amount estimation unit that estimates the deposition amount of hydrocarbons deposited in an exhaust gas purification device of an internal combustion engine equipped with an oxidation catalyst on the basis of at least a first measured value corresponding to the intake air temperature of the internal combustion engine, a second measured value corresponding to the temperature of a cooling liquid of the internal combustion engine, and a third measured value corresponding to the exhaust gas flow rate of the internal combustion engine.
Mitsuyoshi Kimura, Yutaka Ono
Filed: 22 Feb 22
Utility
Work Vehicle and Control Method for Work Vehicle
21 Dec 23
A work vehicle includes a power source, a travel device that includes a clutch capable of adjusting a degree of engagement between the power source and a transmission, and travels on a basis of power transmitted from the power source, working equipment, a drive device that operates the working equipment on a basis of power transmitted from the power source, and a control device that outputs a control command for controlling the degree of engagement of the clutch on a basis of a state of the working equipment.
Kazuki Ichikawa, Masaaki Imaizumi, Ken Hirabayashi, Kento Niiyama
Filed: 1 Nov 21
Utility
Acceleration detection device, work machine, and acceleration detection method
19 Dec 23
An acceleration detection device includes a first acceleration acquisition unit configured to acquire a first acceleration from a mechanical acceleration sensor a second acceleration acquisition unit configured to acquire a second acceleration from a non-mechanical acceleration sensor and a correction value calculation unit configured to calculate a correction value for correcting the first acceleration using the second acceleration.
Toru Kurakane, Ken Tagami, Junghwa Park
Filed: 12 Oct 20
Utility
Work Machine, System Including Work Machine, and Method of Controlling Issuance Apparatus
14 Dec 23
A work machine capable of suppressing a piston of a hydraulic cylinder reaching a stroke end is provided.
Kazumichi OKAJIMA
Filed: 2 Nov 21
Utility
Safety Evaluation System and Safety Evaluation Method
7 Dec 23
A risk detection unit detects an occurrence risk of an incident related to a work machine.
Takahiro Matsui, Takuya Hino, Hidehiko Kobayashi
Filed: 18 Oct 21
Utility
Work Machine, Method for Controlling Work Machine, and Execution Management Device
7 Dec 23
A work machine includes: a work implement including a bucket; a bucket position obtaining unit that obtains a position of the bucket; a distance calculating unit that calculates a distance between the position of the bucket obtained by the bucket position obtaining unit and a design topography of an execution object; and a recording unit that records existing topography data corresponding to the position of the bucket, based on the distance calculated by the distance calculating unit.
Minetaka NISHIMURA
Filed: 22 Aug 23
Utility
Method for calibrating work machine, controller for work machine, and work machine
5 Dec 23
A work machine includes a main body, a boom to drive with respect to the main body, a work tool connecting to the boom, the work tool to drive with respect to the boom, an actuator connecting to the main body and the work tool, the actuator to drive the work tool, and a sub-link to transmit drive of the actuator to the work tool.
Shota Yamawaki, Shogo Miyazaki
Filed: 18 Mar 20
Utility
Work machine control system, work machine, and work machine control method
5 Dec 23
A work machine control method includes: acquiring a detection position of a landmark detected by a non-contact sensor provided in a work machine in traveling of the work machine traveling on a traveling path; calculating a first relative distance between the non-contact sensor and the landmark on a basis of the detection position of the landmark; calculating a second relative distance between the non-contact sensor and the landmark on a basis of a registration position of the landmark; calculating a correction value relating to a relative distance between the non-contact sensor and the landmark on a basis of the first relative distance and the second relative distance; correcting the first relative distance on a basis of the correction value to calculate a corrected relative distance between the non-contact sensor and the landmark; and controlling a traveling state of the work machine on a basis of the corrected relative distance.
Daisuke Tanaka, Tatsuya Shiga
Filed: 27 Feb 19
Utility
System and Method for Controlling Work Machine, and Work Machine
30 Nov 23
A system controls a work machine including a work implement.
Yusuke YAMAZAKI, Tomoki ANDOU, Souichi TSUMURA
Filed: 24 Dec 21
Utility
Work analysis device and method of work analysis
28 Nov 23
A work analysis device includes a state data acquisition unit state, a work specification unit, and an output unit.
Shintaro Hamada, Minami Sugimura
Filed: 13 Mar 19
Utility
Control device for loading machine and control method for loading machine
21 Nov 23
A control device for a loading machine includes a measurement data acquisition unit that acquires measurement data of a measurement device mounted on the loading machine that includes working equipment, a target calculation unit that extracts, from the measurement data, loading target data being measurement data on a loading target on which excavated material excavated by the working equipment is loaded and calculates, based on the loading target data, height data indicating a height of an upper end portion of the loading target and distance data indicating a distance from the loading machine to the loading target, and a working equipment control unit that controls the working equipment based on the height data and the distance data.
Yohei Seki, Masataka Ozaki
Filed: 11 Mar 19