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公开(公告)号：US20240337091A1
公开(公告)日：2024-10-10
申请号：US18231821
申请日：2023-08-09
发明人： Koichi Shimizu , Kengo Kumeuchi
CPC分类号： E02F9/123 , E02F9/2242 , E02F9/2292
摘要： The working vehicle includes a lower body, an upper body, a cab, an operation unit, a travel unit, a controller, an inertial sensor, a slewing unit, and a work unit. The controller controls a first hydraulic pump by comparing an actual traveling-operation speed per unit time in the operation unit operated by an operator with acceleration calculated based on an acceleration signal detected by the inertial sensor, and controls a second hydraulic pump by comparing a slewing-operation speed per unit time in the operation unit with angular acceleration calculated based on an angular velocity signal detected by the inertial sensor.
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公开(公告)号：US20240301654A1
公开(公告)日：2024-09-12
申请号：US18376039
申请日：2023-10-03
发明人： Yuta Kobayashi , Shumpei Okutani , Kengo Kumeuchi
CPC分类号： E02F9/123 , E02F9/0866
摘要： A working vehicle includes a control valve unit, a first drive unit, a travel unit, a lower body, an upper body, a second drive unit, a cab, a plurality of work units and a plurality of traveling hydraulic motors, an operation unit, and a controller. The first drive unit includes a first hydraulic pump, a first electric motor. The controller performs a control of the first electric motor and the second electric motor to adjust a first rotation speed of the first electric motor and a second rotation speed of the second electric motor such that a total rotation speed of the first rotation speed and the second rotation speed matches a target rotation speed calculated from required amount of pressure oil.
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公开(公告)号：US20240287758A1
公开(公告)日：2024-08-29
申请号：US18223113
申请日：2023-07-18
发明人： Hidaka Oyama
IPC分类号： E02F9/08
CPC分类号： E02F9/0866 , E02F9/0858
摘要： A working vehicle includes a first device chamber and a second device chamber in front and rear portions of a vehicle body and a first partition and a second partition partitioning the first device chamber and the second device chamber from surroundings inside the vehicle body, the first device chamber includes devices, e.g., a hydraulic pump, an electric motor, and an inverter, generating heat and becoming relatively high temperature or having relatively high heat resistance, the second device chamber includes devices, e.g., an on-board charger, a battery pack, a converter, and a controller, generating heat and not becoming relatively high temperature or having relatively low heat resistance, and the first device chamber and the second device chamber are separately cooled by cooling fans.
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公开(公告)号：US11927207B2
公开(公告)日：2024-03-12
申请号：US17559704
申请日：2021-12-22
发明人： Shumpei Okutani , Yuta Kobayashi , Koichi Shimizu
CPC分类号： F15B15/18 , E02F9/2203 , E02F9/2228 , E02F9/2267 , E02F9/2271 , E02F9/2004 , E02F9/2285 , E02F9/2292 , E02F9/2296
摘要： A working control device comprises an operation lever for making a boom cylinder (36), an arm cylinder (37) and others work to drive a shovel apparatus (30), and a delivered oil amount control device (a controller (150)). A working oil supply source includes a first electric motor (M1) and a first hydraulic pump (P1). When the operation lever is subjected to a single operation, a number of the motor revolution based on the lever operation is set to control the first electric motor. When the number of motor revolution is less than a necessary minimum number of revolutions, the necessary minimum number is set to control the first electric motor (M1). When the operation lever is subjected to a composite operation, a total number of motor revolutions based on the lever operations is set. When the total number is less than a necessary minimum number of revolutions, the necessary minimum number is set to control the first electric motor (M1).
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公开(公告)号：US11643793B2
公开(公告)日：2023-05-09
申请号：US16671985
申请日：2019-11-01
发明人： Koichi Shimizu , Shumpei Okutani , Kengo Kumeuchi
CPC分类号： E02F9/2235 , E02F3/425 , E02F3/435 , E02F9/2004 , E02F9/2228 , E02F9/2271 , E02F9/2296 , F15B11/04 , F15B13/02 , E02F3/325 , E02F3/964 , E02F9/2285 , E02F9/2292
摘要： An operation control device for a working vehicle comprises a hydraulic actuator to drive the hydraulic working device, operating oil supply source for driving the hydraulic actuator, an operating oil supply control device that performs control to supply operating oil to the hydraulic actuator, an operating device to be operated to make the hydraulic actuator work and a working gain setting device that sets a gain of working speed of the hydraulic actuator corresponding to the operation of the operating device. The operating oil supply control device controls operating oil supply from the operating oil supply source to the hydraulic actuator based on the operation output signal from the operating device and the working speed gain set by the working gain setting device.
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公开(公告)号：US20220069362A1
公开(公告)日：2022-03-03
申请号：US17120522
申请日：2020-12-14
IPC分类号： H01M10/42 , B60L53/50 , B60L50/60 , B60L53/62 , B60K35/00 , B60L58/14 , H01M10/0525 , H01M10/48 , H01M10/06 , H01M10/44 , H01M10/46 , B60L58/18
摘要： There is provided a working vehicle with increased safety by preventing deterioration of a battery due to over-discharge of the battery caused by an operator not noticing occurrence of a malfunction in driving by connected to an external power source. The working vehicle includes a charger, the battery, a sensor, a drive unit, a controller, a display unit, a battery management system, and a switch, in which the battery management system is configured to control the working vehicle to be switched to the driving by connected to the external power source when the switch is turned on after the charger is connected to an external power source and a valid signal for driving by connected to the external power source is received.
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7.发明申请公开(公告)号：US20200071911A1
公开(公告)日：2020-03-05
申请号：US16556366
申请日：2019-08-30
发明人： Tomonori SATO
IPC分类号： E02F9/22 , E02F9/20 , F16H61/4035 , F16H61/47 , F15B7/00 , F15B11/16 , F15B11/044
摘要： To provide a traveling control mechanism and a traveling control method capable of controlling a traveling mechanism taking into consideration operation contents of a remote control valve. The problem is solved by a traveling control mechanism comprising a remote control valve (21, 22, 23, 24), a pressure adjusting solenoid valve (61, 62), a setting mechanism (70), and a controller (60). The traveling mechanism (8) allows a traveling speed to be switched between a high speed and a low speed in accordance with an operation amount of the remote control valve (21, 22, 23, 24). An HST circuit (30) is provided with a pump (31, 32) and a traveling motor (33), the pump (31, 32) connects to a pilot line (41, 42, 43, 44) allowing a hydraulic oil supplied from the remote control valve (21, 22, 23, 24) to flow therethrough, a pressure sensor (45) is attached to the pilot line (41, 42, 43, 44), and a rotation sensor (65) is attached to the traveling motor (33). The controller (60) controls a pressure of the hydraulic oil supplied from the remote control valve (21, 22, 23, 24) independently of a manual operation of the remote control valve (21, 22, 23, 24), on the basis of a setting signal, a pressure signal, and a rotation speed signal. The remote control valve (21, 22, 23, 24) controls a flow rate of the hydraulic oil discharged from the pump (31, 32) by changing or keeping constant the pressure inside the pilot line (41, 42, 43, 44).
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公开(公告)号：US20160024748A1
公开(公告)日：2016-01-28
申请号：US14754151
申请日：2015-06-29
发明人： Shusaku ITO
CPC分类号： E02F3/422 , E02F3/34 , E02F3/3414
摘要： In a state in which an arm 21 is oscillated to a lowest position, each control link 22 is arranged to be horizontally extended backward where the control link 22 is pivotally connected to a point A, and is pivotally connected to the arm 21 at a point D. An arm cylinder 23 is arranged to be vertically extended upward where the arm cylinder 23 is pivotally connected to a point B, and is pivotally connected to the arm 21 at a point E. The lift link 24 is arranged to be vertically extended upward where the lift link 24 is pivotally connected to a point C, and is pivotally connected to the arm 21 at a point F. The points E and F are located above the point D.
摘要翻译： 在臂21摆动到最低位置的状态下，每个控制连杆22被布置成水平地向后延伸，其中控制连杆22枢转地连接到点A，并且在一点上枢转地连接到臂21 臂臂23被布置成向上垂直延伸，臂臂23枢转地连接到点B，并且在点E处枢转地连接到臂21.提升连杆24布置成向上垂直延伸 其中提升连杆24枢转地连接到点C，并且在点F处枢转地连接到臂21.点E和F位于点D之上。
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公开(公告)号：US20230028277A1
公开(公告)日：2023-01-26
申请号：US17726676
申请日：2022-04-22
发明人： Shingo SHIRAISHI
摘要： An opening and closing mechanism for a vehicle body cover which is attached to and detached from a vehicle body of a working vehicle in a separable manner includes a latching portion configured to latch an upper portion of the vehicle body cover to the vehicle body, and a lock portion configured to lock a lower portion of the vehicle body cover to the vehicle body, wherein the lock portion includes a striker provided at the vehicle body cover, a hook provided at the vehicle body, the striker being engageable with and disengageable from the hook, and a lock release portion configured to release a state of the striker being engaged with and locked by the hook, and wherein the lock release portion is arranged at a position which, when directly facing an opening portion provided at the vehicle body, is not viewable inside a field of view of the opening portion and which is graspable by a worker putting a worker's hand inside from the opening portion and stretching worker's fingers from inside the field of view of the opening portion to outside the field of view of the opening portion.
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公开(公告)号：US11091098B2
公开(公告)日：2021-08-17
申请号：US16520536
申请日：2019-07-24
发明人： Shingo Shiraishi , Nobuyuki Sakurai
摘要： There is provided a storage apparatus for documents capable of preventing the storage apparatus from being an obstacle to getting-on/off motions and securing front visibility in good condition. A storage apparatus includes a frame having an opening and wall portions and a lid portion attached to the frame, in which an entrance of the canopy is provided on a left side or a front side of a vehicle body, the frame is fixed to a right side of the vehicle body, the lid portion has a structure in which a right end is attached to the right wall portion of the frame, a left end turns between a position of the left wall portion and a position in a lower direction of the right wall portion, and a holding portion holding the documents is provided in an inner surface.
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