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公开(公告)号：US10112645B2
公开(公告)日：2018-10-30
申请号：US15284861
申请日：2016-10-04
Applicant: KUBOTA CORPORATION
Inventor： Hirokazu Ito , Kazuo Koike , Yoshikazu Togoshi
Abstract: A traveling vehicle including a traveling machine body supported by a pair of left and right driving wheels; a pair of left motor and the right motor configured to independently drive the driving wheels; a riding part disposed behind the traveling machine body and connected to the traveling machine body, and configured to enable riding of a worker; a handle connected to the traveling machine body so as to be swingable left and right with respect to the traveling machine body; a plurality of load sensors for detecting a forward and backward weight shift of the worker who is riding on the riding part; a rotation angle sensor for detecting a leftward and rightward swinging operation amount of the handle; and a controller for controlling operation of the left and right motors based on detection values by the plurality of load sensors and the rotation angle sensor.
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公开(公告)号：US20180303027A1
公开(公告)日：2018-10-25
申请号：US15825412
申请日：2017-11-29
Applicant: Kubota Corporation
Inventor： Kazuo Koike , Hirokazu Ito
Abstract: A work vehicle includes a battery that outputs a DC power, at least two electric motors, and at least two inverters, each inverter being configured to convert the DC power from the battery into an AC power and to supply the AC power to one of the electric motors. The work vehicle further includes an accommodation box attachable/detachable to/from the vehicle body, the accommodation box accommodating a plurality of electrical equipments including the inverters.
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公开(公告)号：US10021831B2
公开(公告)日：2018-07-17
申请号：US14944830
申请日：2015-11-18
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Kazuo Koike
Abstract: An electric work vehicle includes a casing structure connected to a vehicle frame and having a central casing, a left casing, and a right casing. The vehicle further includes a left rear wheel supported by the left casing, a right rear wheel supported by the right casing, a left motor housed in a left region of the central casing, a right motor housed in a right region of the central casing, a left transmission mechanism housed in the left casing for transmitting power from the left motor to the left rear wheel, and a right transmission mechanism housed in the right casing for transmitting power from the right motor to the right rear wheel.
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公开(公告)号：US10020470B2
公开(公告)日：2018-07-10
申请号：US14956650
申请日：2015-12-02
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Kazuo Koike
IPC: H01M2/02 , B60L11/18 , H01M2/10 , H01M10/625 , H01M10/6563 , H01M10/6557 , H01M10/6566 , H01M10/613 , A01D34/64 , A01D34/78 , B60K1/04 , H01M10/6551
CPC classification number: H01M2/0242 , A01D34/64 , A01D34/78 , B60K1/04 , B60K2001/0416 , B60L50/64 , B60L50/66 , B60L58/26 , B60L2200/40 , B60L2240/545 , H01M2/1077 , H01M10/613 , H01M10/625 , H01M10/6551 , H01M10/6557 , H01M10/6563 , H01M10/6566 , H01M2220/20 , Y02T10/7005 , Y02T10/705
Abstract: A battery pack (6) for an electric work vehicle includes a battery unit (6A), a casing (60) for tightly housing the battery unit (6A), a circulation fan (6B) mounted in an inner space of the casing (60), and an air guide (50) provided in the casing (60) to direct cooling air produced by the circulation fan (6B) to the battery unit (6A).
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公开(公告)号：US20180026244A1
公开(公告)日：2018-01-25
申请号：US15622401
申请日：2017-06-14
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Kazuo Koike , Yasuhiro Manji
CPC classification number: H01M2/1083 , A01D34/64 , A01D34/74 , A01D34/78 , A01D69/02 , A01D2101/00 , B60K1/04 , B60K2001/0416 , B60K2001/0477 , B60K2001/0488 , B60L50/64 , B60Y2200/223 , B60Y2200/91 , H01M2/1005 , H01M2/1077 , H01M2/1094 , H01M2220/20
Abstract: An electric work vehicle includes a battery container provided in a traveling vehicle body and including a guiding unit, and a battery pack removably attached to the battery container and including a guided unit. A pair of rollers are provided in one of the guiding unit and the guided unit, and a pair of engaging portion to be engaged with the rollers are provided in the other of the guiding unit and the guided unit. When the battery pack is loaded or unloaded onto/from the battery container at the loading/unloading position, the rollers engage with the engaging portions, thereby functioning as pivot fulcrums for enabling the battery pack to pivot for loading and unloading.
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Patent Agency Ranking
公开(公告)号：US09731760B2
公开(公告)日：2017-08-15
申请号：US14483438
申请日：2014-09-11
Applicant: KUBOTA CORPORATION
Inventor： Hirokazu Ito , Kazuo Koike , Yoshikazu Togoshi
IPC: B62D11/02 , B62D11/04 , B62D1/02 , B62D51/02 , A01D34/00 , A01D34/82 , B62D51/00 , B62D1/12 , A01D69/02
CPC classification number: B62D11/04 , A01D34/001 , A01D34/006 , A01D34/822 , A01D69/02 , B62D1/02 , B62D1/12 , B62D51/001 , B62D51/02
Abstract: A traveling vehicle includes: a traveling machine body supported by a pair of left and right driving wheels; a pair of left motor and the right motor configured to independently drive the driving wheels; a riding part disposed behind the traveling machine body and connected to the traveling machine body, and configured to enable riding of a worker; a handle connected to the traveling machine body so as to be swingable left and right with respect to the traveling machine body; a plurality of load sensors for detecting a forward and backward weight shift of the worker who is riding on the riding part; a rotation angle sensor for detecting a leftward and rightward swinging operation amount of the handle; and a controller for controlling operation of the left and right motors based on detection values by the plurality of load sensors and the rotation angle sensor.
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公开(公告)号：US20170120755A1
公开(公告)日：2017-05-04
申请号：US15336074
申请日：2016-10-27
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Kazuaki Matsuda
IPC: B60L3/10 , G01C19/5776 , B60L15/20
CPC classification number: B60L3/10 , B60L3/102 , B60L15/2036 , B60L2200/40 , B60L2220/42 , B60L2220/46 , B60L2240/22 , B60L2240/421 , B60L2240/461 , B60L2240/465 , G01C19/5776 , Y02T10/7258
Abstract: An electric work vehicle includes a left motor which supplies rotating power to a left drive wheel, a right motor which supplies rotating power to a right drive wheel, a motor control unit which provides drive signals to the left motor and the right motor independently of each other in response to an operation relative to a steering operation unit, a yaw rate detector which detects an actual yaw rate of a vehicle body, an arithmetic yaw rate computing unit which derives an arithmetic yaw rate based on a rotating speed of the left motor or the left drive wheel and a rotating speed of the right motor or the right drive wheel, and a slip detection unit detecting occurrence of slipping based on the arithmetic yaw rate and an actual yaw rate.
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公开(公告)号：US20160297289A1
公开(公告)日：2016-10-13
申请号：US14956670
申请日：2015-12-02
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Kazuo Koike
CPC classification number: B60K1/04 , B60K1/02 , B60K7/0007 , B60K11/06 , B60K17/043 , B60K2001/005 , B60K2001/0416 , B60K2007/0046 , B60K2007/0061 , B60L11/1874 , B60Y2200/223 , B62D11/04
Abstract: An electric work vehicle includes a motor unit including a left motor and a right motor arranged side by side in a transverse direction of the vehicle and connected to a vehicle frame, a left transmission mechanism extending rearward in a fore-and-aft direction of the vehicle from a left side of the left motor to transmit power from the left motor to a left rear wheel, a right transmission mechanism extending rearward in the fore-and-aft direction from a right side of the right motor to transmit power from the right motor to a right rear wheel, and a battery unit housed in a battery casing. The battery casing includes an upper casing extending rearward of the left transmission mechanism and the right transmission mechanism from a top of the motor unit, and a lower casing projecting downward from a bottom of a rear half of the upper casing.
Abstract translation: 一种电动车辆包括：电动机单元，包括左右电动机和右电动机，其沿车辆的横向方向并排配置，并连接到车架;左传动机构，其沿前后方向延伸; 车辆从左侧电动机的左侧向左侧电动机传递动力，右侧传动机构从右侧电动机的右侧沿前后方向向后方延伸，从右侧发射动力 马达到右后轮，以及容纳在电池壳体中的电池单元。 电池壳体包括从电动机单元的顶部向左延伸到左传动机构和右传动机构的后壳的上壳体和从上壳体的后半部的底部向下突出的下壳体。
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公开(公告)号：US20160295797A1
公开(公告)日：2016-10-13
申请号：US14956613
申请日：2015-12-02
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Yoshitomo Fujimoto
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.
Abstract translation: 一种割草车，包括：升降控制部分59，其在操作高度和非操作高度之间改变割草机单元相对于地面的高度;以及管理部分55，其向提升/ 基于由行驶状态检测部7执行的检测结果，降低控制部59和割草刀驱动控制部58。
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公开(公告)号：US12201058B2
公开(公告)日：2025-01-21
申请号：US17520047
申请日：2021-11-05
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Kazuhiro Ochi
IPC: A01D34/78 , A01D34/00 , A01D34/66 , A01D101/00
Abstract: A riding grass mower includes a driver seat 11 in a travel chassis 10, a mower deck 30 supported by the travel chassis 10, a rotary blade 20 in a glass-cutting space defined by side wall and a top plate 31 of the mower deck 30, a blade motor 4 configured to supply motive power to the rotary blade 20, and a blade motor control unit 55 configured to control the blade motor 4. The blade motor control unit 55 includes a main drive control unit 55a configured to rotate the rotary blade 20 forward, an auxiliary drive control unit 55b configured to rotate the rotary blade 20 backward, and a drive selection unit 55c configured to selectively operate the main drive control unit 55a and the auxiliary drive control unit 55b at a start of mowing with use of the rotary blade 20.
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