Yanmar Holdings Patente

[Problem] To provide a control method for a work vehicle, a work vehicle control program, a work vehicle control system, and a work system capable of improving work efficiency with respect to a work site. [Solution] A control method for a work vehicle is a control method for a work vehicle that performs work while self-traveling in a work site F1. This control method includes obtaining presentation information related to an unworkable region Ai1 on which work during self-traveling of the work vehicle is not performed in the work site F1, and outputting the presentation information.

[Problem] Provided is a working machine that facilitates routing of a harness connected to a controller and facilitates maintenance work of the controller. [Solution] A working machine includes: a hydraulic pump arranged on a first lateral side with respect to a prime mover in a machine room; a heat exchanger arranged on a second lateral side with respect to the prime mover in the machine room; and a bracket to which a controller is mounted, the bracket being arranged in the machine room to face a cover member that is detachably provided and forms a side wall of the machine room. The bracket is arranged to be at least partially located on the first lateral side of the hydraulic pump and above the hydraulic pump in a rear view.

[Problem] To provide a control method of a working machine, a working machine control program, a working machine control system, and a working machine that easily suppress working machine movement not intended by an operator. [Solution] A control method of a working machine includes: displaying, on a display device, a setting screen Dp13 for receiving setting information for any setting item related to the working machine; displaying, on the display device, a first image Im11 serving as guidance for a specific manipulation; applying the setting information for the setting item when the specific manipulation is performed; and displaying, on the display device, a second image Im12 instead of the first image Im11 when the setting information is applied.

[Problem] To provide an electric work machine having a compact layout and facilitating an increase in capacity of a battery unit while taking into consideration cooling efficiency when cooling an electric motor, a hydraulic pump, and a hydraulic oil tank.[Solution] A hydraulic excavator as an electric work machine includes: an electric motor; a battery unit that stores electric power for driving the electric motor; a hydraulic oil tank that contains hydraulic oil, and a hydraulic pump that is driven by the electric motor and connected to the hydraulic oil tank. The electric motor, the hydraulic pump, and the hydraulic oil tank are arranged below the battery unit on a machine body frame, and are arranged side by side in a lateral direction of the machine body frame.

[Problem] To provide a control method for a work vehicle, a work vehicle control program, a work vehicle control system, and a work system capable of improving work efficiency with respect to a work site. [Solution] A control method for a work vehicle 10 is a control method for the work vehicle 10 that performs work while self-traveling in a work site F1 along a target route R1. This control method includes generating the target route R1, and designating a travel direction of the work vehicle 10 at an end point P22 of a circulating route r13 when generating the circulating route r13 on which the work vehicle 10 travels to circulate around an outer peripheral region F12 of the work site F1 in the target route R1.

[Problem] To provide a work vehicle control method, a work vehicle control program, a work vehicle control system, and a work system, capable of improving a degree of freedom of a timing at which a work vehicle is caused to start a specific action.[Solution] A work vehicle control method includes causing the work vehicle to perform a specific action and causing a display portion to display a display screen. A start condition for starting the specific action includes a display condition related to the display of the display portion, and it is determined that the display condition is satisfied when either a first screen (guidance screen Dp1) is being displayed as the display screen or a second screen (interruption screen Dp2) different from the first screen (guidance screen Dp1) is being displayed as the display screen and a mode of screen transition satisfies a specific condition.

[Problem] A work machine control method, a work machine control program, a work machine display system, and a work machine that enable to display appropriate information in a case where a work machine is electrified are provided.[Solution] A work machine control method is a control method of a work machine provided with, as a power source that generates power for driving at least a work unit, an electric motor to be driven by electric power of a battery. The control method includes causing a display unit of a display device to display a display screen Dp1 including a first image G1 related to an output state of the electric motor, and a second image G2 related to a charge state of the battery.

[Problem] Provided is a working machine capable of ensuring ride comfort of an operator in a cabin and good forward visibility of the operator in a configuration in which a monitor and an air conditioner are arranged in the cabin.[Solution] The working machine includes: the air conditioner arranged in a cabin on a first lateral side of a driver's seat and on a front side of the driver's seat; the monitor arranged above the air conditioner; a first frame that separates a front window into upper and lower portions, the front window being arranged in a front portion of the cabin; and a second frame arranged in the front portion on the first lateral side of the first frame and extending upward. In a front view, the monitor is arranged to overlap with the first frame and the second frame.

[Problem] To provide a control method of a working machine, a working machine control program, a working machine control system, and a working machine that make it easy for an operator to recognize an attachment being mounted.[Solution] A control method of a working machine is a control method of a working machine capable of replacing an attachment of a working unit. This control method includes displaying, on a display device, attachment information Im22 related to the attachment being mounted at the time of startup of the working machine by a startup manipulation.

[Problem] The present disclosure provides a pre-chamber spark plug capable of adequately scavenging the pre-chamber. [Solution] In an engine provided with a pre-chamber spark plug 20, the pre-chamber C2 is formed by a torch sleeve 30 mounted on a cylinder head and having nozzles 33, 33, ..., 34 and a spark plug 40. In the torch sleeve 30, a tip 32 protruding from the cylinder head has a tapering portion the diameter of which gradually decreases toward a piston, or specifically a tapered section. The tapered section is provided with a plurality of nozzles 33, 33, ....

[Problem] To provide an operation management device capable of ensuring the convenience of a power generation system by causing the power generation system to perform an operation suitable for a request to the power generation system in a predetermined case.[Solution] An operation management device manages an operation of a power generation system comprising an engine power generator and a fuel cell power generator, and the operation management device comprises a processing portion that operates one of the engine power generator and the fuel cell power generator when a required output of the power generation system is equal to or less than a first predetermined value.

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