Komatsu Corporation

Other

Akifumi Inamaru

Eiji Ishibashi

Yasuhito Yonezawa

Yosuke Kogawa

Takahiro Shimojo

Seiji Nagano

Kenji Yamamoto

Toshihiro Kawano

Junji Harada

Koji Okazawa

Kazuyuki Kirino

Kazuhiro Hashimoto

Harushige Nishida

Sigeyuki Satou

Rikio Fuse

A control system for a work vehicle includes an actual topography acquisition device, a storage device, a soil amount acquisition device, and a controller. The actual topography acquisition device acquires actual topography information indicating an actual topography of a work target. The storage device stores design topography information indicating a final design topography. The soil amount acquisition device generates a soil amount signal indicating a held soil amount of the work implement. The controller acquires the actual topography information from the actual topography acquisition device and acquires the design topography information from the storage device. The controller generates a command signal for moving the work implement at position that is between the actual topography and the final design topography and is a predetermined distance above the actual topography. The controller acquires the soil amount signal and changes the predetermined distance based on the held soil amount.

Control system for work vehicle, control method, and work vehicle

A work vehicle control system includes an actual topography acquisition device, a storage device, and a controller. The actual topography acquisition device acquires actual topography information, which indicates an actual topography of a work target. The storage device stores design topography information, which indicates a final design topography that is a target topography of the work target. The controller acquires the actual topography information from the actual topography acquisition device, and the design topography information from the storage device. The controller determines an intermediate design topography positioned above the actual topography and below the final design topography. The controller generates a command signal to move the work implement based on the intermediate design topography. The intermediate design topography includes a plurality of intermediate design surfaces divided in the traveling direction of the work vehicle. Inclination angles of at least two of the intermediate design surfaces differ from each other.

A control system for a work vehicle includes a controller. The controller receives actual topography information of a work target. The controller determines a design surface that is positioned below the actual topography. The controller generates a command signal to move a work implement of the work vehicle along the design surface. The controller determines if slip of the work vehicle has occurred. Upon determining that slip has occurred, the controller changes the design surface to a position equal to or higher than a blade tip position of the work implement when the slip occurred.

Control system for work vehicle, control mei'hod, and work vehicle

A control system for a work vehicle includes a controller. The controller receives actual topography information of a work target. The controller determines a design surface that is positioned below the actual topography. The controller generates a command signal to move the work implement along the design surface. The controller determines if slip of the work vehicle has occurred. The controller raises the design surface when the blade tip of the work implement is positioned below an initial target surface when the slip occurs. The initial target surface is the design surface before the occurrence of the slip.

When a current landscape includes an upward slope and a downward slope existing ahead of the upward slope, a controller determines a virtual design surface including a first design surface inclined at a smaller angle than the upward slope and a second design surface inclined with respect to the first design surface at a smaller angle than the downward slope. The controller generates a command signal that causes a work implement to move along the virtual design surface.

System for controlling work vehicle, method for controlling work vehicle, and work vehicle

A controller calculates a virtual design surface including a first design surface extending from an excavation start position in a traveling direction of a work vehicle and a second design surface further extending from the first design surface in the traveling direction. The controller generates a command signal that causes the work implement to move along the virtual design surface. The controller changes a position of the first design surface so that the first design surface extends along the current landscape or is located below the current landscape when the first design surface is located above the current landscape.

A work vehicle control system includes an actual topography acquisition device, a storage device, and a controller. The actual topography acquisition device acquires actual topography information which indicates an actual topography of a work target. The storage device stores design topography information which indicates a final design topography which is a target topography of the work target. The controller acquires the actual topography information from the actual topography acquisition device. The controller acquires the design topography information from the storage device. The controller generates a command signal to move the work implement along a first locus that follows a slope of the actual topography, and a second locus positioned above the actual topography and below the final design topography in front of the first locus.

A work vehicle control system includes an actual topography acquisition device and a controller. The actual topography acquisition device acquires actual topography information, which indicates an actual topography of a work target. The controller acquires the actual topography information from the actual topography acquisition device. The controller generates a command signal to move the work implement along a locus positioned above the target topography by a predetermined distance when the actual topography is positioned below the target topography of the work target.

A controller acquires an excavation start position at which a work implement starts excavation. When a current landscape includes an upward slope and a downward slope existing ahead of the upward slope and the excavation start position is on the upward slope, the controller determines a first virtual design surface including a first design surface located below the current landscape and inclined at a smaller angle than the upward slope. The controller generates a command signal that causes the work implement to move along the first virtual design surface.

A work vehicle control system includes an actual topography acquisition device, a storage device, and a controller. The actual topography acquisition device acquires actual topography information, which indicates the actual topography of a work target. The storage device stores design topography information, which indicates a final design topography that is a target topography of the work target. The controller acquires the actual topography information from the actual topography acquisition device. The controller acquires the design topography information from the storage device. The controller generates a command signal to move the work implement to a position that is between the actual topography and the final design topography, and a predetermined distance above the actual topography.

A work vehicle control system includes an actual topography acquisition device, a storage device, and a controller. The actual topography acquisition device acquires actual topography information, which indicates an actual topography of a work target. The storage device stores design topography information, which indicates a final design topography that is a target topography of the work target. The controller acquires the actual topography information from the actual topography acquisition device. The controller acquires the design topography information from the storage device. When the actual topography positioned below the final design topography is sloped, the controller generates a command signal to move the work implement along a locus positioned below the final design topography and below the actual topography, and a sloped locus that is positioned below the final design topography and above the actual topography.

A sensor outputs a signal indicating an excavation start position at which a work implement starts excavation. A controller determines an inclination angle of a virtual design surface so that an amount of soil between the virtual design surface extending from the excavation start position and a current landscape matches a predetermined target amount of soil. The controller generates a command signal that causes the work implement to move along the virtual design surface extending from the excavation start position in a direction inclined at the inclination angle.

A work vehicle control system includes an actual topography acquisition device, a storage device, and a controller. The actual topography acquisition device acquires actual topography information, which indicates an actual topography of a work target. The storage device stores design topography information, which indicates a final design topography that is a target topography of the work target. The controller acquires the actual topography information from the actual topography acquisition device. The controller acquires the design topography information from the storage device. The controller generates a command signal to move the work implement along a locus that is more gently sloped than the actual topography when the actual topography positioned below the final design topography is sloped.

A monolever operation apparatus for a working vehicle, which improves operability with excellent fine operability of a monolever. For this purpose, the monolever operation apparatus for the working vehicle includes an arm rest provided at a console placed on at least either one of the left and right sides of an operator's seat, and a monolever which is placed in front of the arm rest and is rotatively operated in a fore-and-aft direction and in a left and right direction. When operated in the left and right direction, the monolever is allowed to be operated with a distance, from a fulcrum of operation below the operator's elbow placed on the arm rest up to a grip of the monolever, remaining almost constant.

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Tokyo, Japan

Akifumi Inamaru