Kubota Corporation

Kubota Corporatin

Yoshitomo Fujimoto

Hirokazu Ito

Susumu Umemoto

Kazuo Koike

Yushi Matsuzaki

Shinnosuke Ishikawa

Atsushi Shinkai

Shigeki Hayashi

Keishiro Nishi

Yasuhisa Uoya

Ryo Kurata

Michita Kono

Hisao Mukai

Hiroyuki Araki

Takashi Kobayashi

Nobushige Ichikawa

Yoshihiko Kuroshita

Hidetoshi Hana

Takashi Uchida

Koichiro Kan

Norio Obata

Toshikazu Kawamoto

A machine body side control device is configured to control an actuator based on information on a posture change of a machine body obtained from a machine body side sensor and information on a position of an implement relative to the ground surface obtained from an implement side sensor via an implement side control device.

Work vehicle

A controller for a baler, includes an ejecting position acquisition circuit, a prohibited position acquisition circuit, and a control circuit. The ejecting position acquisition circuit is configured to acquire an ejecting position at which an ejecting unit of the baler is configured to eject a bale of grass. The prohibited position acquisition circuit is configured to acquire a prohibited position. The control circuit is configured to control the ejecting unit to eject the bale at the ejecting position if the ejecting position is different from the prohibited position.

Controller for baler and grass management system

A grass management system includes a prohibition determination circuit and a baler. The prohibition determination circuit is configured to determine a prohibition position. The baler is configured to acquire the prohibition position from the prohibition determination circuit, and eject a bale of grass at a position except for the prohibition position.

Grass management system and grass management method

A lawn mower includes: a mower unit having a plurality of blades for performing lawn mowing work, the plurality of blades being driven by rotational power, a blade motor configured to transmit rotational power to each of the plurality of blades, and be capable of optionally changing the rotation number of the rotational power transmitted to each of the plurality of blades; and a controller configured to detect respective speeds of the plurality of blades to the ground and perform energy-saving control of increasing and decreasing the rotation number of the rotational power transmitted to each of the plurality of blades in accordance with increase and reduction in the detected speed of each of the plurality of blades.

Lawn mower with independent blade control during energy-saving control mode

Work vehicle having a coupling member which is switchable between a coupled state where left/right brake operation tools are integrally coupled and a released state releasing the coupling. A coupled state detector is utilized. A controller controls a traveling state and is switchable between a first or normal mode and a second or vehicle speed suppression mode. The second or vehicle speed suppression mode can be switched back to the first or normal mode when the coupled state is detected and a predetermined releasing operation is performed.

Work vehicle with speed control system

A work vehicle includes circuitry configured to determine a focused area based on signals detected by work and travel situation detection sensors. The circuitry is configured to determine a prioritized display image among images captured by cameras, the prioritized display image including the focused area. The circuitry is configured to compose the images captured by the cameras by view-point converting the images to generate an overhead image around the vehicle body. The circuitry is configured to generate at least one monitor display image including a first display area in which the overhead image is displayed and a second display area in which the prioritized display image is displayed.

Work vehicle with monitor to display overhead image of work vehicle, and image displaying method for displaying overhead image of work vehicle

A work vehicle cooperation system includes: a master traveling track calculation unit that calculates a traveling track of a master work vehicle (P) based on a detection position at which the master work vehicle (P) was detected; a slave traveling target calculation unit that calculates a target traveling position of the slave work vehicle (C) based on the traveling track of the master work vehicle (P); a master parameter generation unit that generates a master work/driving parameter relating to work/driving executed by the master work vehicle (P), the master work/driving parameter being linked with the detection position; a slave parameter generation unit that generates a slave work/driving parameter for the slave work vehicle (C) based on the master work/driving parameter, the slave work/driving parameter being linked with the target traveling position for the slave work vehicle (C); and a navigation control unit that navigates the slave work vehicle in an unmanned manner based on a detection position of the slave work vehicle (C), the target traveling position, and the slave work/driving parameter.

Work vehicle cooperation system

Disclosed is a hybrid work vehicle capable of smooth work travel using a work device with a low output internal combustion engine, while avoiding battery exhaustion. The vehicle includes an internal combustion engine that supplies drive power to a travel device and a work device via power transmission means, a motor generator that is driven by a battery, a load information generation part that generates load information representing a sudden increase in rotational load, an assist characteristic determination part that determines motor assist characteristics defining an assist amount and an assist time period of assist control based on load information, and a motor control unit that controls the motor generator based on the motor assist characteristics.

Vehicle

A mowing vehicle that includes: a raising/lowering control portionthat changes the height of the mower unit with respect to the ground between an operation height and a non-operation height, and a management portionthat provides control instructions to the raising/lowering control portionand a mowing blade driving control portionbased on a result of detection performed by a traveling state detection portion

Mowing vehicle including arrangement for raising/lowering height of a mower unit

Lawn mower utilizing a work device having a plurality of blades for performing lawn mowing work. A power device is configured to transmit rotational power to each of the plurality of blades, and be capable of optionally changing the rotation number of the rotational power transmitted to each of the plurality of blades. A blade speed detection unit is configured to detect respective speeds of the plurality of blades to a ground. A control device is configured to perform energy-saving control of increasing and decreasing the rotation number of the rotational power transmitted to each of the plurality of blades in accordance with increase and reduction in the detected speed of each of the plurality of blades.

Lawn mower with respective blade speed detection relative to ground

A hybrid work vehicle is provided with an internal combustion engine for supplying driving force to a running device and a work implement via a transmission shaft, a motor generator for assisting the internal combustion engine by outputting power to the transmission shaft, and a battery for receiving charging electricity from the motor generator and giving driving electricity to the motor generator. A load information generation unit generates load information indicating a rotational load received by the internal combustion engine when in a constant-speed control mode for maintaining a constant number of revolutions of the internal combustion engine, based on an input parameter, and an assistance calculation unit calculates an amount of assistance for internal combustion engine by the motor generator, based on the load information when in the constant-speed control mode.

Hybrid work vehicle

A work vehicle cooperation system includes: a master traveling tack calculation unit that calculates a traveling track of a master work vehicle (P) based on its position; a loop traveling detection unit that detects loop traveling in a loop work area (B); a redirection traveling target calculation unit that calculates a redirection traveling start point and a redirection traveling end point (Pc) of a slave work vehicle (C) based on a redirection traveling track including a redirection traveling start point (Pp) and a redirection traveling end point of redirection traveling of the master work vehicle (P); and a loop work traveling target calculation unit that calculates a target traveling position in loop work traveling of the slave work vehicle (C) for the redirection traveling end point (Pc) to a next redirection traveling start point (Pc).

A vehicle steerable by movement of the center of gravity has an auxiliary wheel. A left drive wheel is driven by a left rotary driver. A right drive wheel is driven by a right rotary driver. A gravity center position calculator calculates a position of the center of gravity of a driver on a steering step board based on a detection signal from a load detection module detecting a load distribution of the driver. A travel controller has a first control mode controlling rotary drive of the left and right rotary drivers to achieve straight forward travel or turning. The travel controller also has a second control mode controlling the rotary drive of the left and right rotary drivers to achieve straight forward travel, turning or straight backward travel based on the position of the center of gravity. A driver input operation device can be used to select either the first or the second control mode.

Growing community of inventors

Sakai, Japan

Yoshitomo Fujimoto