公开(公告)号：US10687473B2

公开(公告)日：2020-06-23

申请号：US15989178

申请日：2018-05-25

Applicant: Kubota Corporation

Inventor： Ryo Kurata ,  Susumu Umemoto ,  Yoshitomo Fujimoto ,  Shinnosuke Ishikawa

IPC: A01F15/07 ,  A01F15/08 ,  A01B79/00 ,  A01D34/00 ,  A01D34/66 ,  A01D75/28 ,  A01D78/00 ,  B60K37/02

Abstract: 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.

公开(公告)号：US10602659B2

公开(公告)日：2020-03-31

申请号：US15440904

申请日：2017-02-23

Applicant: KUBOTA CORPORATION

Inventor： Hirokazu Ito ,  Kazuo Koike ,  Yoshitomo Fujimoto

IPC: A01D34/00 ,  A01D34/58 ,  A01D34/78 ,  A01D69/02 ,  A01D34/66 ,  A01D34/76 ,  A01D101/00

Abstract: 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.

公开(公告)号：US10569783B2

公开(公告)日：2020-02-25

申请号：US15618829

申请日：2017-06-09

Applicant: KUBOTA CORPORATION

Inventor： Yoshihiko Kuroshita ,  Susumu Umemoto ,  Yoshitomo Fujimoto ,  Takashi Kobayashi

IPC: B60W30/188

Abstract: 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.

公开(公告)号：US09776615B2

公开(公告)日：2017-10-03

申请号：US14342854

申请日：2013-03-14

Applicant: Kubota Corporation

Inventor： Yushi Matsuzaki ,  Yoshitomo Fujimoto ,  Michita Kono ,  Shigeki Hayashi ,  Atsushi Shinkai ,  Keishiro Nishi ,  Hisao Mukai

IPC: B60K25/06 ,  B60K6/547 ,  B60W10/08 ,  B60W10/11 ,  B60W10/30 ,  B60W20/00 ,  B60W20/10 ,  B60K6/485 ,  B60L11/14 ,  B60W10/06 ,  B60W10/103 ,  B60W30/192 ,  B60L11/18 ,  B60L15/20 ,  B60W20/19 ,  B60K6/12 ,  B60W10/10 ,  B60W30/18 ,  F02D29/02 ,  B60K17/28

CPC classification number: B60W20/10 ,  B60K6/12 ,  B60K6/485 ,  B60K6/547 ,  B60K17/10 ,  B60K17/28 ,  B60K25/06 ,  B60L11/14 ,  B60L11/1862 ,  B60L15/2054 ,  B60L2200/40 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2250/12 ,  B60L2250/26 ,  B60W10/06 ,  B60W10/08 ,  B60W10/10 ,  B60W10/103 ,  B60W10/11 ,  B60W10/30 ,  B60W20/19 ,  B60W30/18027 ,  B60W30/192 ,  B60W2510/06 ,  B60W2710/08 ,  B60W2710/10 ,  B60W2710/30 ,  B60Y2200/221 ,  B60Y2300/423 ,  F02D29/02 ,  Y02T10/6226 ,  Y02T10/6286 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275 ,  Y10S903/919 ,  Y10S903/93

Abstract: 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.

公开(公告)号：US09699961B2

公开(公告)日：2017-07-11

申请号：US14956613

申请日：2015-12-02

Applicant: Kubota Corporation

Inventor： Hirokazu Ito ,  Yoshitomo Fujimoto

IPC: G06F7/70 ,  G06F19/00 ,  G06G7/00 ,  G06G7/76 ,  A01D34/00 ,  A01D34/74 ,  A01D101/00

CPC classification number: A01D34/008 ,  A01D34/006 ,  A01D34/74 ,  A01D2101/00

Abstract: A mowing vehicle that includes: a raising/lowering control portion 59 that changes the height of the mower unit with respect to the ground between an operation height and a non-operation height, and a management portion 55 that provides control instructions to the raising/lowering control portion 59 and a mowing blade driving control portion 58 based on a result of detection performed by a traveling state detection portion 7.