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公开(公告)号:US20240326907A1
公开(公告)日:2024-10-03
申请号:US18590942
申请日:2024-02-29
发明人: Taiki IIMURA , Kazumasa OZAKI , Shinichiro KOBASHI
CPC分类号: B62D11/04 , B60B19/003
摘要: A calibration method for a moving body, which includes a pair of left and right omnidirectional wheels, includes: a first step of creating a rotational speed command value for four electric motors such that the moving body performs a linear translational movement or an ultra-pivotal turn; a second step of driving each motor based on the command value to move the moving body; a third step of obtaining a total number of rotations of each motor until the movement of the moving body is completed; a fourth step of measuring an yaw angle change amount of the moving body as it moves; a fifth step of repeating the first to fourth steps at least three times to obtain three or more data sets including the total number of rotations of each motor and the yaw angle change amount; and a sixth step of calculating each correction value based on the data sets.
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公开(公告)号:US12084838B2
公开(公告)日:2024-09-10
申请号:US16971504
申请日:2019-02-26
申请人: KOMATSU LTD.
发明人: Shintaro Kobayashi , Yuki Arai , Takeshi Kamimae
IPC分类号: E02F9/22 , B60K17/356 , B60K17/36 , B62D6/02 , B62D9/00 , B62D11/04 , B62D12/00 , E02F3/76 , E02F3/84 , E02F9/08
CPC分类号: E02F9/225 , B62D6/02 , B62D9/002 , B62D12/00 , E02F9/0841 , B60K17/356 , B60K17/36 , B62D11/04 , E02F3/7636 , E02F3/841 , E02F9/2292 , E02F9/2296
摘要: A controller controls a first drive source and a second drive source based on a rotation speed of a right rear wheel measured by a rotation speed sensor and a rotation speed of a left rear wheel measured by a rotation speed sensor, to thereby independently control a rotation speed of each of a right front wheel and a left front wheel.
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公开(公告)号:US20240181870A1
公开(公告)日:2024-06-06
申请号:US18060917
申请日:2022-12-01
申请人: DANA ITALIA S.R.L.
CPC分类号: B60K17/046 , B60K7/0007 , B60L50/60 , B62D11/04 , F16H37/04 , B60K2007/0061
摘要: Systems are provided for a driveline. In one example, a system includes a first electric motor coupled to a first two-stage gear assembly, a second electric motor coupled to a second two-stage gear assembly and separated from the first electric motor, wherein the first and second two-stage gear assemblies comprise a first stage helical gear assembly and a second stage helical planetary reduction assembly.
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公开(公告)号:US20240166259A1
公开(公告)日:2024-05-23
申请号:US18284546
申请日:2022-04-27
摘要: The present invention applies to carts (1) in which the driver is not carried on, and which have a single forward direction (FWD) and a single center of rotation at standstill (RCV0), and discloses a pivoting handlebar (12) at the rear of the cart (1) which can move freely to both sides, preventing the driver from having to move laterally during turns.
Discloses also an articulated vehicle (0) comprising a combination of a cart (1) provided with a pivoting handlebar (12) and a rear driven element (20) carrying the driver; and both main elements are connected by means of an articulated structure (21) which is hinged around the cart (1). The pivoting handlebar (12) improves maneuverability and stability, since it prevents the driver from seeking lateral support on the handlebar, eliminating the vehicle's oversteering effect (0) that such support would entail.-
公开(公告)号:US20240125094A1
公开(公告)日:2024-04-18
申请号:US18531185
申请日:2023-12-06
CPC分类号: E02F9/225 , B62D11/005 , B62D11/04 , E02F9/2285 , E02F9/2292 , E02F9/26 , E02F9/2296
摘要: The present invention is directed to a metering valve for controlling the amount of a fluid passed through the valve and a servo-valve for controlling the metering valve, wherein the servo-valve is decoupled from the metering valve to thermally distance or thermally isolate the servo-valve from any heat from the fluid passing through the metering valve. The metering valve and servo-valve may be used to attemperate a steam stream in a power plant attemperation system, such as a system for attemperating a superheated steam gas stream from a power plant being used for a heat-recovery steam generator. An integrated metering valve and discharge valve for discharging fluid during periods of non-use is also provide. Changeable throttle plates are also provided that control the flow of the fluid through the control chamber of the metering valve and the discharge valve.
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公开(公告)号:US20240102265A1
公开(公告)日:2024-03-28
申请号:US18530964
申请日:2023-12-06
申请人: KUBOTA CORPORATION
发明人: Yuji FUKUDA , Kohei NAGAO
CPC分类号: E02F9/2253 , B62D11/005 , B62D11/04 , E02F9/2235 , E02F9/225 , E02F9/2275 , F15B15/00 , F15B18/00 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B2211/57
摘要: A working machine includes a machine body, a left traveling device located left on the machine body, a right traveling device located right on the machine body, and a controller configured or programmed to perform automatic deceleration to automatically reduce a first rotation speed of a left traveling motor and a second rotation speed of a right traveling motor by shifting a speed stage of each of the left and right traveling motors from a second speed stage to a first speed stage that is lower than the second speed stage. The controller is configured or programmed to: not perform the automatic deceleration when the first rotation speed or the second rotation speed is equal to or higher than a predetermined rotation speed; and perform the automatic deceleration when the first rotation speed and the second rotation speed are less than the predetermined rotation speed.
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公开(公告)号:US11873624B2
公开(公告)日:2024-01-16
申请号:US17388668
申请日:2021-07-29
申请人: KUBOTA CORPORATION
发明人: Yuji Fukuda , Kohei Nagao
CPC分类号: E02F9/2253 , B62D11/005 , B62D11/04 , E02F9/225 , E02F9/2235 , E02F9/2275 , F15B15/00 , F15B18/00 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B2211/57
摘要: A working machine includes a controller to perform automatic deceleration to automatically reduce a first rotation speed of a left traveling motor to output a power to a left traveling device on a left portion of a machine body and a second rotation speed of a right traveling motor to output a power to a right traveling device on a right portion of the machine body by shifting a speed stage of each of the left and right traveling motors from a second speed to a first speed that is lower than the second speed. The controller is configured or programmed to determine, based on the second rotation speed, a left threshold for judging whether to perform the automatic deceleration in left pivot turn of the machine body, and to determine, based on the first rotation speed, a right threshold for judging whether to perform the automatic deceleration in right pivot turn of the machine body.
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公开(公告)号:US11807296B1
公开(公告)日:2023-11-07
申请号:US16895469
申请日:2020-06-08
发明人: Raymond Hauser , Alyn G. Brown
IPC分类号: B62D11/04 , A01D69/00 , B62D11/00 , B60L15/20 , A01D69/02 , A01D34/78 , B62D11/10 , A01D101/00
CPC分类号: B62D11/04 , A01D34/78 , A01D69/025 , B60L15/2036 , B62D11/003 , B62D11/10 , A01D2101/00 , B60L2240/465
摘要: A vehicle drive and control system includes an input shaft driven by a prime mover and extending into a housing to drive a generator. An electric motor powered by the generator drives an output axle, which may be a single axle extending out one side of the housing, or a through shaft extending through the electric motor and out both sides of the housing. The input shaft may be parallel to the axle. A power controller is configured to back-drive the generator when certain predetermined conditions are met. A motor controller may control an output of the motor based on input received via an operator control device, and the motor controller is configured to operate the motor as a generator under certain operating conditions. The transaxle includes a common housing in which the power generator, the motor, and controllers for the generator and electric motor are disposed.
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公开(公告)号:US20230347975A1
公开(公告)日:2023-11-02
申请号:US18125585
申请日:2023-03-23
发明人: Yoshihiro OKAZAKI
CPC分类号: B62D11/04 , B60B33/006 , B60G3/14
摘要: A guided vehicle includes: a first wheel section positioned at a front end portion of a base; and second and third wheel sections which are independent from each other. The first wheel section includes a left-right frame body, and swivel wheels arranged on left and right portions of the left-right frame body. An intermediate position between the swivel wheels in the left-right frame body is supported to be swingable about a front-rear axis relative to the base. Each of the second wheel section and the third wheel section includes a front-rear frame body, and a driving wheel and a swivel wheel which are respectively arranged at a front portion and a rear portion of the front-rear frame body. An intermediate position between the driving wheel and the swivel wheel of each front-rear frame body is supported to be swingable about the left-right axis and the front-rear axis relative to the base.
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公开(公告)号:US20230202565A1
公开(公告)日:2023-06-29
申请号:US18090188
申请日:2022-12-28
发明人: CHEN-TING KAO , CHIH-CHENG LEE , CHIUNG-HSIANG WU , SHENG-LI YEN , YU-CHENG ZHANG , CHEN CHAO , CHANG-JU HSIEH
CPC分类号: B62D21/11 , B60K7/00 , B62D11/04 , B60G7/001 , B60K2007/0061
摘要: A car body structure includes a bottom plate, a side plate assembly, and a support rod assembly. The side plate assembly includes a first side plate and a second side plate opposite to the first side plate. The first side plate and the second plate are connected to the bottom plate and located on a same side of the bottom plate. An edge of the first side plate facing away from the bottom plate defines at least two first slots, and an edge of the second side plate facing away from the bottom plate defines at least two second slots. The support rod assembly includes at least two support rods, each support rod is snap-engaged with one first slot and one second slot. A surface of the support rod assembly facing away from the bottom plate is a bearing surface. A driving unit is also disclosed.
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