Patents Assigned to Yanmar Holdings Co., Ltd.
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Publication number: 20240125093Abstract: Provided is a hydraulic shovel as an electric work machine, the hydraulic shovel comprising: a charger that supplies electric power from an external power source to a battery to charge the battery; an electric motor that is driven with electric power supplied from the battery; a hydraulic system including a hydraulic pump driven by the electric motor and a hydraulic actuator to which pressure oil is supplied by the hydraulic pump; a control unit that manages a physical quantity indicating the operation status of the electric motor as first operation information, and manages a physical quantity indicating the operation status of the battery including charging and discharging as second operation information; and an output unit that outputs the first operation information and the second operation information.Type: ApplicationFiled: February 2, 2022Publication date: April 18, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Kensuke Kaneda, Kosuke Onitsuka
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Publication number: 20240126293Abstract: A positioning processing unit measures the position of a work vehicle by a predetermined positioning method on the basis of a GNSS signal received from a satellite. A travel processing unit causes the work vehicle to travel automatically on the basis of position information of the work vehicle. A switching processing unit can switch between an RTK method and a DGPS method. A setting processing unit sets the work mode of the work vehicle to either a work accuracy preferential mode or a work continuity preferential mode. The switching processing unit switches between the RTK method and the DGPS method on the basis of the work mode and the positioning state.Type: ApplicationFiled: January 21, 2022Publication date: April 18, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Shinya NISHIBEPPU, Yuki KOHORI
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Publication number: 20240117609Abstract: This display device of a work machine includes a storage unit that stores the cumulative times of use of consumables of the work machine, wherein the consumables require maintenance according to the use thereof. Furthermore, a display control unit and a display unit included in the display device function as a notification means for providing a notification of the arrival of maintenance times of the consumables on the basis of the cumulative times. Furthermore, the display control unit and the display unit function as a plurality of function setting means for respectively setting a plurality of functions of the work machine, and as a selection means for selecting one of the plurality of function setting means. The plurality of function setting means have a reset setting means for resetting the cumulative times.Type: ApplicationFiled: December 3, 2021Publication date: April 11, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Shogo Suzuki, Daisuke Kawaguchi, Kazuki Tamura
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Publication number: 20240117606Abstract: A shovel is provided with a traveling body, a turning body, and a reception unit. The turning body is disposed on top of the traveling body, and turns about a turning axis with respect to the traveling body. The reception unit receives, from a reference station, specification information for specifying the position of the turning body. The reception unit is disposed between the turning axis and the rear end of the turning body. The turning body preferably includes a cabin. The reception unit is preferably disposed in a rear portion of the cabin.Type: ApplicationFiled: February 4, 2022Publication date: April 11, 2024Applicant: Yanmar Holdings Co., Ltd.Inventor: Kohei Okazaki
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Patent number: 11951831Abstract: A tractor includes an engine, a vehicle body, a rear PTO shaft, a central PTO shaft, a permission switch, and a control unit. The engine is configured to generate power. The vehicle body includes an operator's seat. The rear PTO shaft is configured to supply power generated by the engine to a rear work machine attached to a rear part of the vehicle body. The central PTO shaft is configured to supply power generated by the engine to a central work machine attached to a central part of the vehicle body. The permission switch is operable by an operator. The control unit indicates that the permission switch is operated as one of permission conditions for rotation of the rear PTO shaft after disembarkation, and indicates that the permission switch is operated as one of permission conditions for rotation of the central PTO shaft when moving backward.Type: GrantFiled: May 5, 2023Date of Patent: April 9, 2024Assignee: YANMAR HOLDINGS CO., LTD.Inventors: Hiroyasu Ishida, Tetsuya Iida
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Publication number: 20240107932Abstract: An acceptance processing unit accepts, from a user, an operation to set each of a plurality of action items related to actions to be executed by a work vehicle when the work vehicle reaches a predetermined position corresponding to an end point of a work route on which the work vehicle is caused to autonomously travel. A setting processing unit sets each of the plurality of action items on the basis of the operation of the user.Type: ApplicationFiled: September 13, 2023Publication date: April 4, 2024Applicant: Yanmar Holdings Co., Ltd.Inventor: Shinnosuke Miyamoto
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Publication number: 20240107930Abstract: A vehicle control device causes a work vehicle to automatically travel in accordance with a target route set in advance. The generation processing unit generates, in a case where setting information related to automatic traveling is changed after the work vehicle starts automatic traveling corresponding to the target route, a target route with reference to a work-completed route along which the work vehicle has performed work immediately before. The vehicle control device causes the work vehicle to automatically travel in accordance with the target route.Type: ApplicationFiled: September 29, 2023Publication date: April 4, 2024Applicant: Yanmar Holdings Co., Ltd.Inventor: Shinnosuke MIYAMOTO
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Publication number: 20240103527Abstract: An acquisition processing part acquires a captured image from a camera which is installed on a work vehicle. A detection processing part detects an obstacle on the basis of the captured image which is acquired by the acquisition processing part. When an obstacle is detected by the detection processing part, a reception processing part receives a traveling stop instruction for stopping automatic traveling of the work vehicle or a traveling continuation instruction for continuing automatic traveling of the work vehicle. A traveling processing part stops the automatic traveling of the work vehicle when the reception processing part receives the traveling stop instruction, and continues the automatic traveling of the work vehicle when the reception processing part receives the traveling continuation instruction.Type: ApplicationFiled: November 29, 2021Publication date: March 28, 2024Applicant: YANMAR HOLDINGS CO., LTD.Inventor: Takuya IWASE
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Publication number: 20240097458Abstract: A control device includes a power storage unit, a balance processing unit, and a control unit. The power storage unit includes a plurality of battery cells, and supplies power to a load. In a case where the load stops, the balance processing unit can execute balance processing of reducing variation in the voltage of each of the plurality of battery cells according to the degree of the variation in the voltage. The control unit generates, for display, a state image indicating the state of the variation according to the degree of the variation.Type: ApplicationFiled: September 20, 2023Publication date: March 21, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Masafumi YASAKA, Kensuke KANEDA, Daisuke YOSHITOMI, Kosuke ONITSUKA
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Publication number: 20240096137Abstract: This display method includes performing: displaying, in a first display region previously set in an operation display part, map information including at least the current position of a work vehicle; displaying, in a second display region previously set in the operation display part, a display item representing the current work situation of the work vehicle; and switching a first display item, which represents a first work situation being displayed in the second display region, into a second display item which represents a second work situation.Type: ApplicationFiled: January 21, 2022Publication date: March 21, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Mamoru TAKAHASHI, Masaaki MURAYAMA
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Publication number: 20240093468Abstract: A construction machine comprises: a work machine mounted on a machine body; an attachment operably mounted on the work machine; an action control means for controlling the action of the attachment; an information acquisition means for acquiring attachment's action information; and a notification means for performing notification of an operation state related to hazardous attachment's action, such notification being on the basis of the action information acquired by the information acquisition means.Type: ApplicationFiled: January 14, 2022Publication date: March 21, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Takashi Deguchi, Tomohiro Tateishi
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Publication number: 20240084551Abstract: A construction machine includes an engine, a cooling fan, a hood, a heat exchanger, a partition plate, a battery, and a fuse box. The engine has electrical equipment. The cooling fan is mounted to the engine. The hood has an exhaust port. The heat exchanger is disposed between the cooling fan and the exhaust port. The partition plate defines an exhaust air channel between the heat exchanger and the exhaust port. The battery is disposed in a space under the partition plate. The fuse box is connected to a circuit joining the electrical equipment of the engine and the battery. The fuse box is disposed between the battery and the partition plate.Type: ApplicationFiled: December 7, 2021Publication date: March 14, 2024Applicant: Yanmar Holdings Co., Ltd.Inventor: Yosuke OTSUKA
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Publication number: 20240085906Abstract: A reception processing unit receives a user operation performed with respect to an operation tool that causes a work vehicle to execute a predetermined motion. A motion processing unit causes the work vehicle to execute a motion corresponding to the user operation performed with respect to the operation tool. A travel processing unit switches from autonomous travel to manual travel when a change amount relating to the operation tool corresponding to the user operation exceeds a threshold while the work vehicle is performing autonomous travel. A setting processing unit sets the threshold based on at least one of setting information and work information of the work vehicle.Type: ApplicationFiled: September 11, 2023Publication date: March 14, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Koji Miyake, Yasuto Nishii, Kenichi Miyai
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Publication number: 20240085910Abstract: An acquisition processing unit acquires position information of a predetermined position of a work vehicle in a field. A registration processing unit registers the predetermined position as a reference point when the work vehicle has traveled a predetermined distance from the predetermined position, or when a predetermined time has elapsed since the work vehicle started to travel from the predetermined position. A generation processing unit generates a target route based on the reference point.Type: ApplicationFiled: September 11, 2023Publication date: March 14, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Koji Miyake, Takashi Mochida
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Publication number: 20240077876Abstract: A route setting device includes a situation ascertainment unit and a departure route setting unit. The situation ascertainment unit receives an instruction for a work vehicle moving through a field along a preset work route, and acquires the location of the work vehicle. On the basis of the instruction and the work machinery used for work in the field by the work vehicle moving within the field, the departure route setting unit generates a departure route for departing from a work region where work is being done by the work vehicle in the field.Type: ApplicationFiled: December 3, 2021Publication date: March 7, 2024Applicant: Yanmar Holdings Co., Ltd.Inventor: Takuya IWASE
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Publication number: 20240068386Abstract: Provided are an aftertreatment device capable of purifying exhaust gas with a compact configuration and an engine including the aftertreatment device. An aftertreatment device includes: a DPF case; an SCR case; an exhaust connection pipe that connects the DPF case and the SCR case; a mixer arranged at an upstream end of the exhaust connection pipe in a flow direction of exhaust gas; and a urea water injection portion that injects urea water into the mixer.Type: ApplicationFiled: July 13, 2023Publication date: February 29, 2024Applicant: YANMAR HOLDINGS CO., LTD.Inventor: Shinsuke KASAZAKI
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Publication number: 20240069556Abstract: The generation processing part generates the target route including a plurality of straight routes arranged at equal interval spacing, based on the reference line which passes through point A and point in the field. In a case of changing the orientation of the target route, the change processing part maintains the interval spacing of each of the plurality of straight routes.Type: ApplicationFiled: August 24, 2023Publication date: February 29, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Masafumi SAITO, Keisuke IWAMURA
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Patent number: 11913397Abstract: An engine includes an engine stop switch for stopping the engine, and a cooling part included in a holding portion or passage of a cooling liquid. The engine stop switch is placed at the cooling part or at a peripheral part of the cooling part.Type: GrantFiled: March 9, 2023Date of Patent: February 27, 2024Assignee: YANMAR HOLDINGS CO., LTD.Inventors: Yu Hirao, Yuki Kobayashi
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Publication number: 20240060270Abstract: This hydraulic shovel used as an electric work machine comprises: an electric motor, an inverter, a hydraulic actuator, a hydraulic pump, a direction switching valve, a pilot pump, a remote control valve, an electromagnetic valve, an accumulator, and a control unit. The accumulator is positioned in an oil path that branches from an oil path for pilot oil extending from the pilot pump to the electromagnetic valve, and accumulates the pilot pressure generated by the pilot pump. The control unit controls the inverter to stop the rotation of the electric motor after an interruption due to a depowered state of the electromagnetic valve.Type: ApplicationFiled: December 23, 2021Publication date: February 22, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Kensuke Kaneda, Takeshi Takaira, Kazunosuke Miyoshi, Shunnosuke Mizumachi, Kosuke Onitsuka
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Publication number: 20240061434Abstract: A setting processing unit sets a predetermined turning route among a plurality of turning routes having different turning methods, for each of a plurality of work paths included in a field where a work vehicle autonomously travels in accordance with a target route and sets the target route including the turning route set for each of the plurality of work paths and a work route set corresponding to the field.Type: ApplicationFiled: August 17, 2023Publication date: February 22, 2024Applicant: Yanmar Holdings Co., Ltd.Inventors: Yu KIYOSAWA, Mamoru TAKAHASHI, Yasuto NISHH