公开(公告)号：US20230202455A1

公开(公告)日：2023-06-29

申请号：US18000005

申请日：2021-10-22

Applicant: KUBOTA CORPORATION

Inventor： Kazuaki KOYAMA ,  Ryota KIMURA ,  Koichi FUNAKI ,  Yasuo FUJII ,  Tamotsu KUNO

IPC: B60W20/16 ,  B60W30/182 ,  B60W10/06 ,  B60W10/08

CPC classification number: B60W20/16 ,  B60W30/182 ,  B60W10/06 ,  B60W10/08 ,  B60W2710/0666

Abstract: A hybrid system which can calculate various type of more proper required torques is provided while input factors which can be used for calculating the various types of required torques are limited.
A hybrid system 2 includes a rotation sensor 31 which detects a rotation number of an engine 3, at least either one of an accelerator opening-degree sensor 61 which detects an accelerator opening degree and a rotation-number instruction unit 62 which transmits a rotation-number signal instructing a certain rotation number to the engine 3, and a control unit 5 which controls an operation of the engine 3. The control unit 5 executes control of calculating a torque determining factor for determining a system required torque as the hybrid system 2 on the basis of at least either one of the accelerator opening degree detected by the accelerator opening-degree sensor 61 and the rotation-number signal transmitted by the rotation-number instruction unit 62 and control of calculating the system required torque on the basis of the rotation number detected by the rotation sensor 31 and the calculated torque determining factor.

公开(公告)号：US20240409083A1

公开(公告)日：2024-12-12

申请号：US18702521

申请日：2022-08-29

Applicant: KUBOTA CORPORATION

Inventor： Yasuo FUJII ,  Kazuaki KOYAMA ,  Ryota KIMURA

IPC: B60W20/50 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/13

Abstract: A hybrid system 10 includes a motor generator 2, a secondary battery 50 that is provided as a drive power source for the motor generator 2 and supplies power to the motor generator 2, a positive electrode-side contactor 75 that opens and closes an electric circuit 174 between a positive electrode 51 of the secondary battery 50 and the motor generator 2, a negative electrode-side contactor 76 that opens and closes an electric circuit 175 between a negative electrode 52 of the secondary battery 50 and the motor generator 2, a first control unit 150 that controls one of the positive electrode-side contactor 75 and the negative electrode-side contactor 76, and a second control unit 85 that controls the other of the positive electrode-side contactor 75 and the negative electrode-side contactor 76, based on a control signal transmitted from the first control unit 150.

公开(公告)号：US20230280999A1

公开(公告)日：2023-09-07

申请号：US18000040

申请日：2021-10-22

Applicant: KUBOTA CORPORATION

Inventor： Yasuo FUJII ,  Hiroaki IMAHARA ,  Kenji NISHIOKA

IPC: G06F8/65

CPC classification number: G06F8/65

Abstract: An information update system is provided, which can update information stored in a control unit mounted on an industrial machine by using an update file transmitted wirelessly, while battery exhaustion is suppressed. The information update system 2 includes an ignition 62, a control unit 41, a gateway 3 which performs update of information stored in the control unit 41, a first relay 51 controlled to be connected and disconnected by the control unit 41 and switches between transmission and shut-off of electricity from a battery 61, and a second relay 52 controlled to be connected and disconnected by the gateway 3and switches between transmission and shut-off of the electricity from the battery 61. The control unit 41 disconnects the first relay 51 when the ignition 62 is set to off. The gateway 3 performs the information update in a state where the second relay 52 is kept connected, when the ignition 62 is set to off, and disconnects the second relay 52 after the information update is finished.

公开(公告)号：US20170208651A1

公开(公告)日：2017-07-20

申请号：US15366723

申请日：2016-12-01

Applicant: KUBOTA Corporation

Inventor： Kazunari TSUJINO ,  Yasuo FUJII ,  Mikio ISHIDA ,  Kouji HORIKIRI ,  Katsushi INOUE

IPC: H05B6/10 ,  F01M5/00

CPC classification number: H05B6/108 ,  B60H1/2221 ,  F01M5/001 ,  F01M2013/0027 ,  F02M25/06 ,  F02M31/125 ,  F24H1/105 ,  F24H1/142 ,  F24H2250/08 ,  Y02T10/121 ,  Y02T10/126

Abstract: A fluid heating device of an engine is provided that is capable of reducing power consumption of a heat source required for heating a fluid. The fluid heating device of the engine includes a heat radiation pipe through which a fluid passes and an induction heating coil. Heat of the heat radiation pipe that is inductively heated by the induction heating coil is radiated to the fluid. A whole periphery of the heat radiation pipe is surrounded by the induction heating coil. The induction heating coil is supported by the heat radiation pipe. A holder is included, and the induction heating coil is supported by the heat radiation pipe via the holder. The holder, to which the induction heating coil is attached, is detachably supported by the heat radiation pipe.

公开(公告)号：US20160033165A1

公开(公告)日：2016-02-04

申请号：US14813717

申请日：2015-07-30

Applicant: KUBOTA Corporation

Inventor： Koji OKADA ,  Yasuo FUJII ,  Mikio ISHIDA

IPC: F24H1/14

CPC classification number: F24H1/142 ,  F01M5/001 ,  F01M2013/0455 ,  F02M31/125 ,  F24H1/121 ,  F24H9/0021 ,  Y02T10/126

Abstract: There is provided a fluid heating device for an engine with increased heating efficiency of fluid. The fluid heating device for an engine includes a holder; a heater; and a radiator pipe, the radiator pipe is inserted into the holder, the heater is housed in the holder, heat of the heater is radiated to fluid passing through the radiator pipe via the radiator pipe. The radiator pipe is formed by an outer pipe and an inner pipe in the outer pipe, the heat generated by the heater is transferred to the outer pipe and the inner pipe, the fluid passing inside and outside the inner pipe in the outer pipe is heated by heat radiation from the outer pipe and the inner pipe.

Abstract translation: 提供了一种用于发动机的流体加热装置，其具有增加的流体的加热效率。 发动机的流体加热装置包括：保持器; 加热器 散热器管，散热器管插入保持器中，加热器容纳在保持器中，加热器的热量经由散热器管辐射到通过散热器管的流体。 散热器管由外管中的外管和内管形成，加热器产生的热量被传送到外管和内管，外管内管的内外流动被加热 通过来自外管和内管的热辐射。