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公开(公告)号：US20140378274A1
公开(公告)日：2014-12-25
申请号：US14317515
申请日：2014-06-27
Applicant: Kubota Corporation
Inventor： Susumu Umemoto , Hisao Mukai , Nobushige Ichikawa , Takuya Inamori , Yushi Matsuzaki
IPC: B60W10/196 , B60W10/101
CPC classification number: B60W10/196 , B60W10/101 , B60W2510/0638 , F02D31/00 , F16H61/421 , F16H61/431 , F16H61/47 , F16H2059/363 , F16H2059/366 , F16H2061/6615 , Y10T477/621 , Y10T477/688
Abstract: A speed change system for work vehicle having a continuously variable transmission device selects a first change gear ratio which is set larger than a smallest change gear ratio, when an engine rotational speed is a first set rotational speed which is set equal or close to an idling rotational speed of an engine; retains the change gear ratio of the continuously variable transmission device at the smallest change gear ratio, when the engine rotational speed is equal to or above a second set rotational speed set on a high-speed side relative to the first set rotational speed; and makes the change gear ratio of the continuously variable transmission device larger between the first change gear ratio and the smallest change gear ratio, as the engine rotational speed at that moment becomes lower, when the engine rotational speed is between the first and second set rotational speeds.
Abstract translation: 具有无级变速装置的作业车辆的变速系统选择设定为大于最小变速比的第一变速比，当发动机转速为设定为等于或接近空转的第一设定转速时 发动机转速; 当所述发动机转速等于或高于相对于所述第一设定转速在高速侧设定的第二设定转速时，以所述最小变速比保持所述无级变速器的变速比; 并且当发动机转速在第一和第二设定转动之间时，随着当时的发动机转速变低，无级变速器的变速比在第一变速比和最小变速比之间变大 速度。
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公开(公告)号：US20160046278A1
公开(公告)日：2016-02-18
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
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.
Abstract translation: 公开了一种能够使用具有低输出内燃机的工作装置平滑工作行驶的混合动力车辆，同时避免电池耗尽。 车辆包括：内燃机，其通过动力传递装置向行驶装置和作业装置供给驱动力，由电池驱动的电动发电机;负载信息生成部，其生成表示旋转负载突然增加的负载信息 辅助特性确定部，其基于负载信息确定确定辅助量的辅助量和辅助时间段的电动机辅助特性;以及基于所述电动机辅助特性来控制所述电动发电机的电动机控制部。
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公开(公告)号：US11305828B2
公开(公告)日：2022-04-19
申请号：US17115794
申请日：2020-12-09
Applicant: Kubota Corporation
Inventor： Takashi Sera , Takashi Oda , Hisao Mukai , Takuya Tanigawa
Abstract: A work vehicle includes a link mechanism to be equipped with a work implement, a drive mechanism to drive the link mechanism to ascend and descend the work implement, and a control lever is to be operated to ascend and descend the work implement. The work vehicle includes a first displacement transmission mechanism, an additional operational mechanism, and a second displacement transmission mechanism. The first displacement transmission mechanism links the drive mechanism and the control lever to transmit a displacement of the control lever to the drive mechanism. The additional operational mechanism is configured to operate the control lever at a location apart from a position of the control lever. The second displacement transmission mechanism mechanically links the additional operational mechanism and the control lever without interposing the first displacement transmission mechanism to shift the control lever in accordance with an operation of the additional operational mechanism.
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Patent Agency Ranking
公开(公告)号：US09283951B2
公开(公告)日：2016-03-15
申请号：US14317515
申请日：2014-06-27
Applicant: Kubota Corporation
Inventor： Susumu Umemoto , Hisao Mukai , Nobushige Ichikawa , Takuya Inamori , Yushi Matsuzaki
IPC: F16H61/40 , B60W10/196 , F16H61/421 , F16H61/431 , F16H61/47 , F02D31/00 , B60W10/101 , F16H61/66 , F16H59/36
CPC classification number: B60W10/196 , B60W10/101 , B60W2510/0638 , F02D31/00 , F16H61/421 , F16H61/431 , F16H61/47 , F16H2059/363 , F16H2059/366 , F16H2061/6615 , Y10T477/621 , Y10T477/688
Abstract: A speed change system for work vehicle having a continuously variable transmission device selects a first change gear ratio which is set larger than a smallest change gear ratio, when an engine rotational speed is a first set rotational speed which is set equal or close to an idling rotational speed of an engine; retains the change gear ratio of the continuously variable transmission device at the smallest change gear ratio, when the engine rotational speed is equal to or above a second set rotational speed set on a high-speed side relative to the first set rotational speed; and makes the change gear ratio of the continuously variable transmission device larger between the first change gear ratio and the smallest change gear ratio, as the engine rotational speed at that moment becomes lower, when the engine rotational speed is between the first and second set rotational speeds.
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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.
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公开(公告)号：US09506552B2
公开(公告)日：2016-11-29
申请号：US14855729
申请日：2015-09-16
Applicant: KUBOTA CORPORATION
Inventor： Tomofumi Fukunaga , Keishiro Nishi , Akira Hiwatashi , Hisao Mukai , Koji Matsuda , Takuya Tanigawa , Takahiro Nakatsuka
IPC: F16H57/021 , B60K17/28 , F16H47/02
CPC classification number: F16H57/021 , B60K17/28 , B60Y2200/221 , F16H47/02
Abstract: A work vehicle that includes: a transmission system decreasing or changing a speed of a driving force from an engine and outputting the driving force. A transmission case houses the transmission system. A hydraulic circuit supplies oil collected in the transmission case to hydraulic equipment. The transmission case is divided to form a storage space housing a minimum speed transmission portion of the transmission system. The hydraulic circuit connects a suction intake oil passage of the hydraulic circuit to a bottom portion of the storage space and supplies the oil collected in the storage space to the hydraulic equipment.
Abstract translation: 一种工作车辆，其包括：传动系统，其减小或改变来自发动机的驱动力的速度并输出驱动力。 传动箱容纳传动系统。 液压回路将收集在变速箱内的油液供给液压设备。 传动箱被分割成形成容纳传动系统的最小速度传递部分的存储空间。 液压回路将液压回路的吸入口油路连接到储藏空间的底部，并将收集在储存空间中的油供给到液压设备。
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公开(公告)号：US08798878B2
公开(公告)日：2014-08-05
申请号：US13889733
申请日：2013-05-08
Applicant: Kubota Corporation
Inventor： Susumu Umemoto , Hisao Mukai , Nobushige Ichikawa , Takuya Inamori , Yushi Matsuzaki
IPC: G06F7/00
CPC classification number: B60W10/196 , B60W10/101 , B60W2510/0638 , F02D31/00 , F16H61/421 , F16H61/431 , F16H61/47 , F16H2059/363 , F16H2059/366 , F16H2061/6615 , Y10T477/621 , Y10T477/688
Abstract: A speed change system for work vehicle having a continuously variable transmission device selects a first change gear ratio which is set larger than a smallest change gear ratio, when an engine rotational speed is a first set rotational speed which is set equal or close to an idling rotational speed of an engine; retains the change gear ratio of the continuously variable transmission device at the smallest change gear ratio, when the engine rotational speed is equal to or above a second set rotational speed set on a high-speed side relative to the first set rotational speed; and makes the change gear ratio of the continuously variable transmission device larger between the first change gear ratio and the smallest change gear ratio, as the engine rotational speed at that moment becomes lower, when the engine rotational speed is between the first and second set rotational speeds.
Abstract translation: 具有无级变速装置的作业车辆的变速系统选择设定为大于最小变速比的第一变速比，当发动机转速为设定为等于或接近空转的第一设定转速时 发动机转速; 当所述发动机转速等于或高于相对于所述第一设定转速在高速侧设定的第二设定转速时，以所述最小变速比保持所述无级变速器的变速比; 并且当发动机转速在第一和第二设定转动之间时，随着当时的发动机转速变低，无级变速器的变速比在第一变速比和最小变速比之间变大 速度。
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公开(公告)号：US20130275027A1
公开(公告)日：2013-10-17
申请号：US13889733
申请日：2013-05-08
Applicant: Kubota Corporation
Inventor： Susumu Umemoto , Hisao Mukai , Nobushige Ichikawa , Takuya Inamori , Yushi Matsuzaki
IPC: F02D31/00
CPC classification number: B60W10/196 , B60W10/101 , B60W2510/0638 , F02D31/00 , F16H61/421 , F16H61/431 , F16H61/47 , F16H2059/363 , F16H2059/366 , F16H2061/6615 , Y10T477/621 , Y10T477/688
Abstract: A speed change system for work vehicle having a continuously variable transmission device selects a first change gear ratio which is set larger than a smallest change gear ratio, when an engine rotational speed is a first set rotational speed which is set equal or close to an idling rotational speed of an engine; retains the change gear ratio of the continuously variable transmission device at the smallest change gear ratio, when the engine rotational speed is equal to or above a second set rotational speed set on a high-speed side relative to the first set rotational speed; and makes the change gear ratio of the continuously variable transmission device larger between the first change gear ratio and the smallest change gear ratio, as the engine rotational speed at that moment becomes lower, when the engine rotational speed is between the first and second set rotational speeds.
Abstract translation: 具有无级变速装置的作业车辆的变速系统选择设定为大于最小变速比的第一变速比，当发动机转速为设定为等于或接近空转的第一设定转速时 发动机转速; 当所述发动机转速等于或高于相对于所述第一设定转速在高速侧设定的第二设定转速时，以所述最小变速比保持所述无级变速器的变速比; 并且当发动机转速在第一和第二设定转动之间时，随着当时的发动机转速变低，无级变速器的变速比在第一变速比和最小变速比之间变大 速度。
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