Patents Assigned to YANMAR
  • Work Method, Work Vehicle And Work System
    Publication number: 20230339320
    Abstract: This tractor includes a work machine, a control device, and an imaging unit. The control device operates as a work machine state detection unit and a display control unit. The work machine state detection unit detects a work machine state relating to the work machine. The imaging unit acquires a work image by imaging the status of work performed by the work machine. The display control unit displays simultaneously on a display device a first display area that displays the detected work machine state, and a second display area that displays the acquired work image.
    Type: Application
    Filed: April 12, 2023
    Publication date: October 26, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: So Ueno, Toshiyuki Miwa
  • Electric Work Machine
    Publication number: 20230339334
    Abstract: A hydraulic excavator as an electric work machine includes an electric motor, a plurality of battery units that store electric power to drive the electric motor, and a machine-body frame on which the electric motor and the plurality of battery units are mounted. The plurality of battery units are located in parallel in one direction and aligned in a direction perpendicular to the one direction in the machine-body frame. At least two of the plurality of battery units have end parts located by being shifted from each other in one direction, respectively.
    Type: Application
    Filed: April 11, 2023
    Publication date: October 26, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventor: Kotaro Nomura
  • Heat Pump Device
    Publication number: 20230339292
    Abstract: A heat pump device is provided with: a compressor; an engine; a power generator; and a motor. The compressor pressurizes a refrigerant. The power generator is driven by the engine. The motor operates with power generated by the power generator. In addition, the motor drives the compressor.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 26, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Shota Imoto, Satoshi Matsushita, Yuichiro Tanaka, Kengo Kimura, Soichiro Kamoda, Terunori Aikawa, Takuma Iwami
  • Work Method, Work Vehicle And Work System
    Publication number: 20230329138
    Abstract: A tractor, which is a work vehicle, includes a control device. The control device operates as a travel control unit and a work control unit that perform work travel in a field, and a finish detection unit (detection unit) that detects a finish level of the work at each work position in the field after performing the work travel.
    Type: Application
    Filed: April 8, 2023
    Publication date: October 19, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: So Ueno, Toshiyuki Miwa
  • Automatic Traveling System, Automatic Traveling Method, And Automatic Traveling Program
    Publication number: 20230320246
    Abstract: A positioning unit measures the position of a tractor. An automatic traveling control unit causes the tractor to automatically travel according to a target route on the basis of positioning information of the positioning unit. In the case where the tractor changes its direction on a direction change route, when the distance from a field to an end position at which the front-rear direction of the tractor is switched is less than a predetermined distance, the automatic traveling controller executes deceleration processing of decelerating a target speed of the tractor toward the end position.
    Type: Application
    Filed: September 13, 2021
    Publication date: October 12, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventor: Maroi Kodama
  • Route Generation Method, Route Generation System, And Route Generation Program
    Publication number: 20230309434
    Abstract: A setting processing unit sets a set azimuth that is an angle with respect to a reference orientation, and sets a reference point at a predetermined location in a field. A generation processing unit generates a target route on the basis of the set azimuth and a reference line passing through the reference point.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Shogo Suzuki, Shinnosuke Miyamoto, Keisuke Iwamura, Dai Uehara
  • Control Device And Work Vehicle
    Publication number: 20230311654
    Abstract: A control portion includes a vehicle-position acquiring portion, a field-contour setting portion, a region setting portion, and a display processing portion. The vehicle-position acquiring portion acquires position information indicating a position of the combine harvester traveling on a field. The field-contour setting portion sets a contour of a field on the basis of a plurality of pieces of the position information. The region setting portion sets a region not subject to a work indicating a region which is not a target for the work by the combine harvester inside the field or outside the field on the basis of the contour. The display processing portion causes a field image showing the field and an identification image for identifying the region not subject to the work, to be displayed on a display portion.
    Type: Application
    Filed: March 12, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Hidetaka Suzuki, Masaaki Murayama, Yuji Yamaguchi, Yasuto Nishii
  • Automatic Run Method, Automatic Run System, And Automatic Run Program
    Publication number: 20230315088
    Abstract: A run processing unit causes a work vehicle to automatically run following a target route. A reception processing unit receives, from an operator, a correcting operation that corrects a positional deviation between the work vehicle and the target route, and A offset processing unit prohibits, when the positional deviation is a threshold value or over, the work vehicle correcting action that is in response to the correcting operation.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Shinnosuke Miyamoto, Keisuke Iwamura, Dai Uehara, Shogo Suzuki
  • Run Control Method, Run Control System, Work Vehicle, And Run Control Program
    Publication number: 20230315089
    Abstract: A reception processing unit receives an operator's operation on an operation tool that causes a work vehicle to perform a given motion. The motion processing unit causes the work vehicle to perform a motion that corresponds to the operator's operation on the operation tool. A run processing unit causes the work vehicle to automatically run when the operator's first operation on the operation tool is received, and causes the work vehicle to manually run when the operator's second operation on the operation tool is received.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Shinnosuke Miyamoto, Keisuke Iwamura, Dai Uehara, Shogo Suzuki
  • Automatic Run Method, Automatic Run System, And Automatic Run Program
    Publication number: 20230309435
    Abstract: A positioning processing unit positions a position of a work vehicle by a given positioning method based on a satellite signal received from a satellite . A run processing unit causes the work vehicle to automatically run based on position information showing the work vehicle position positioned by the positioning processing unit . Further, the run processing unit prohibits the automatic run, when the work vehicle is ready for the automatic run by a first positioning method, and when the positioning method is switched to a second positioning method which is different in positioning accuracy from the first positioning method.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Shinnosuke Miyamoto, Keisuke Iwamura
  • DIESEL ENGINE
    Publication number: 20230313732
    Abstract: This diesel engine comprises: an engine body part in which a cylinder head is fastened to an upper section of a cylinder block; a turbocharger; and an exhaust gas post-treatment device. A cooling fan is provided on the front side in the front-rear direction of the engine body part. The cylinder head is configured to have an exhaust side on the left side in the engine width direction, and an intake side on the right side. The exhaust gas post-treatment device is disposed above the cylinder head so as to extend in the engine front-rear direction. The turbocharger is disposed on the exhaust side of the cylinder head and is configured to spray compressed air in the engine front-rear direction.
    Type: Application
    Filed: August 25, 2021
    Publication date: October 5, 2023
    Applicant: YANMAR HOLDINGS CO., LTD.
    Inventors: Yuki Okamoto, Masataka Uchibori
  • Engine
    Publication number: 20230313727
    Abstract: An engine is provided with an engine body, a crankshaft, a cooling fan, an exhaust manifold, a supercharger, an ATD that purifies exhaust gas, and a second exhaust pipe. When the height direction of the engine is defined as a first direction, the crankshaft extends in a second direction vertical to the first direction. The cooling fan is disposed on one side of the engine body in the second direction. The supercharger is driven by the exhaust gas from the exhaust manifold. The second exhaust pipe connects the supercharger and the ATD. The ATD is disposed in an attitude in which the longitudinal direction thereof is parallel to the second direction. The second exhaust pipe is connected to the cooling fan side of the ATD in the second direction. The second exhaust pipe is disposed so as to pass laterally with respect to the exhaust manifold and below the supercharger.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Power Technology Co., Ltd.
    Inventor: Masataka Uchibori
  • Control Device And Work Vehicle
    Publication number: 20230315109
    Abstract: A control portion includes a vehicle-position acquiring portion, a field-contour setting portion, a region setting portion, and a start-position setting portion. The vehicle-position acquiring portion acquires position information indicating a position of a combine harvester. The field-contour setting portion sets a contour of a field on the basis of a plurality of pieces of the position information. The region setting portion sets an unworked region inside the contour on the basis of the plurality of pieces of the position information. The start-position setting portion sets a corner closest to a position of the combine harvester among a plurality of corners of the unworked region to an automated-travel start position on the basis of the position information.
    Type: Application
    Filed: March 12, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Hidetaka Suzuki, Masaaki Murayama, Yuji Yamaguchi, Yasuto Nishii
  • Operation Assistance Method, Operation Assistance System, And Operation Assistance Program
    Publication number: 20230315087
    Abstract: A display processing unit causes displays a work screen on an operation device that is used for autonomous travel of a work vehicle. The display processing unit displays travel information on a location of the work vehicle in a display area included in the work screen. A setting processing unit switches between a setting to display travel information on a travel state of the work vehicle in display areas included in the work screen and a setting not to display the travel information in the display areas.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Shogo Suzuki, Shinnosuke Miyamoto, Keisuke Iwamura, Dai Uehara
  • Route Generation Method, Route Generation System, And Route Generation Program
    Publication number: 20230315110
    Abstract: A setting processing unit identifies any route generation mode of plural route generation modes, in each of which a target route is generated on the basis of a reference point that is set at a predetermined location in a field. Then, a generation processing unit generates the target route in the identified route generation mode.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Shogo Suzuki, Dai Uehara, Keisuke Iwamura, Shinnosuke Miyamoto
  • Control Device And Work Vehicle
    Publication number: 20230311655
    Abstract: A control device includes a first acquiring portion, a second acquiring portion, a generating portion, and a display processing portion. The first acquiring portion acquires first information on a work target region in which a work vehicle travels and works in a field. The second acquiring portion acquires second information on a worked region in which the work vehicle has worked. The generating portion generates progress information indicating progress of a work by the work vehicle on the basis of the first information and the second information. The display processing portion causes an index indicating the progress information to be displayed on the display portion.
    Type: Application
    Filed: March 12, 2023
    Publication date: October 5, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Hidetaka Suzuki, Masaaki Murayama, Yuji Yamaguchi, Yasuto Nishii
  • CONSTRUCTION MACHINE
    Publication number: 20230304259
    Abstract: To provide a construction machine capable of improving cooling efficiency of a heat exchanger and reducing noise in a configuration in which a prime mover, a heat exchanger, and an air cleaner for supplying clean air to the prime mover are arranged in an engine room. The excavation work machine comprises an engine room provided on a swivel frame and housing equipment including an engine and a heat exchange unit, a ventilation part provided on a right exterior cover forming a side wall of the engine room and having a plurality of ventilation holes for communicating inside and outside of the engine room, and an air cleaner arranged between the heat exchange unit and the ventilation part in the engine room, and supplying cleaned air to the engine.
    Type: Application
    Filed: March 2, 2023
    Publication date: September 28, 2023
    Applicant: YANMAR HOLDINGS CO., LTD.
    Inventor: Tatsumasa WAKATA
  • Working Machine
    Publication number: 20230304263
    Abstract: A working machine includes a display unit, a reception unit, and a display processing unit. The display unit displays a first screen that displays a first mark indicating a set function and a second screen for setting the function. The reception unit receives an instruction of setting a function when the display unit displays the second screen. In response to reception of the instruction of setting the function by the reception unit, when the display unit displays the second screen, the display processing unit causes the display unit to display a second mark corresponding to the first mark and superimposes the second mark on the second screen.
    Type: Application
    Filed: August 5, 2021
    Publication date: September 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Shogo Suzuki, Daisuke Kawaguchi, Kazuki Tamura
  • DISPLAY DEVICE AND WORK MACHINE COMPRISING SAME
    Publication number: 20230304266
    Abstract: This display device includes a display unit, a receiving unit, and a control unit. The display unit displays a first screen having a selection item display area. The receiving unit receives a command for selecting a selection item displayed in the selection item display area. The control unit displays, on the basis of alarm information which indicates that an error has occurred, an alarm mark image in the selection item display area. When the alarm mark image is displayed in the selection item display area, the control unit assigns, to the receiving unit, a function of receiving an alarm mark selection command which is the command for selecting the alarm mark image. When the receiving unit receives the alarm mark selection command, the control unit displays, on the display unit, a second screen for indicating the content of the error.
    Type: Application
    Filed: August 11, 2021
    Publication date: September 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Shogo SUZUKI, Daisuke KAWAGUCHI, Kazuki TAMURA
  • Engine
    Patent number: 11767798
    Abstract: An engine including a main fuel injection valve, a pilot fuel injection valve, a liquid fuel supply rail pipe, and a pilot fuel supply rail pipe. The main fuel injection valve supplies liquid fuel from the liquid fuel supply rail pipe to a combustion chamber during combustion in a diffusion combustion system. The pilot fuel injection valve supplies pilot fuel from the pilot fuel supply rail pipe to the combustion chamber in order to ignite gaseous fuel during combustion in a premixed combustion system. The liquid fuel supply rail pipe is disposed at one side of an imaginary vertical plane including an axis of a crank shaft. The pilot fuel supply rail pipe is disposed at the side of the imaginary vertical plane at which the liquid fuel supply rail pipe is disposed.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: September 26, 2023
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventors: Katsuhiro Nishimura, Koichi Hirose