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    Power supply device for vehicle
    41.
    发明授权
    Power supply device for vehicle 有权

    公开(公告)号：US12097775B2

    公开(公告)日：2024-09-24

    申请号：US18249265

    申请日：2021-09-17

    Applicant: IMASEN ELECTRIC INDUSTRIAL CO., LTD.

    Inventor： Daisuke Makio ,  Koichi Yamanoue

    IPC: B60L3/00 ,  B60L1/00 ,  B60L3/04 ,  B60L50/60 ,  B60L58/12 ,  B60L58/22

    CPC classification number: B60L3/04 ,  B60L1/00 ,  B60L50/60 ,  B60L58/22 ,  B60L3/0069 ,  B60L2210/10 ,  B60L2210/12

    Abstract: In a vehicle power supply device mounted on a vehicle and obtaining a low voltage power supply from a high voltage power supply via a step-down means, electric shock to the human body is prevented without using an insulating means such as a transformer. A vehicle power supply device converts power from high voltage to low voltage by selectively connecting a predetermined power storage element group to a low voltage electric load from a high voltage power supply formed by connecting power storage elements in series. A leakage current from the high voltage power supply is measured during the dead time period when the power storage element group is not connected to the low voltage electric load. When the value exceeds a predetermined value, cutting off the power supply from the high-voltage power supply to the high-voltage load device, so that electric shock is prevented.

    CONSTRUCTION MACHINE AND OPERATION METHOD
    42.
    发明公开
    CONSTRUCTION MACHINE AND OPERATION METHOD 审中-公开

    公开(公告)号：US20240294095A1

    公开(公告)日：2024-09-05

    申请号：US18572947

    申请日：2022-06-23

    Applicant: HD HYUNDAI INFRACORE CO., LTD.

    Inventor： Jong Min NA

    IPC: B60L58/27 ,  B60L1/00 ,  E02F9/22 ,  E02F9/24 ,  F15B13/04

    CPC classification number: B60L58/27 ,  B60L1/003 ,  E02F9/2228 ,  E02F9/2285 ,  E02F9/24 ,  F15B13/04 ,  B60L2200/40 ,  B60L2240/36 ,  B60L2240/545 ,  E02F9/2296

    Abstract: This disclosure relates to a construction machine utilizing battery and hydraulic power and comprising an electronic power unit comprising a battery and an electric motor, a hydraulic pump driven by the electronic power unit and discharging hydraulic fluid, a hydraulic line through which the hydraulic fluid discharged from the hydraulic pump moves, a main control valve installed on the hydraulic line and controlling the supply of the hydraulic fluid to at least one of propulsion devices or various working devices requiring hydraulic power, a bypass cut valve installed downstream of the main control valve on the hydraulic line and configured to open and close the hydraulic line, and a controller initiating a warm-up mode to increase the output of the electronic power unit and open the bypass cut valve.

    ELECTRIC POWERTRAIN WORK MODES
    44.
    发明公开
    ELECTRIC POWERTRAIN WORK MODES 审中-公开

    公开(公告)号：US20240286491A1

    公开(公告)日：2024-08-29

    申请号：US18692652

    申请日：2021-10-14

    Applicant: Cummins Inc.

    Inventor： Marco Gatti ,  Rohit Saha

    IPC: B60L15/20 ,  B60L1/00 ,  B60L58/12 ,  B60L58/30

    CPC classification number: B60L15/20 ,  B60L1/003 ,  B60L58/12 ,  B60L58/30 ,  B60L2200/40 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2250/16

    Abstract: A control system for off-highway battery application powertrain systems that allows the operator to select one or more performance/operating modes. The one or more performance modes may be based on the work that needs to be accomplished using the machine vs. the hours needed before the next charge opportunity. Modes will take typically into consideration battery management system performance maps, Electric motor/inverter performance maps, pump performance maps and other systems communicating with the powertrain system. The operator is in control to optimize refill and/or next battery charge. The operator may have the option to select performance modes based on excavator performance vs. battery life. Remaining time and warning messages may be periodically sent to the operator based on the performance mode selected and current state of charge.

    ELECTRIC WORK VEHICLE AND POWER TAKE-OFF CONTROL METHOD
    48.
    发明公开
    ELECTRIC WORK VEHICLE AND POWER TAKE-OFF CONTROL METHOD 审中-公开

    公开(公告)号：US20240262206A1

    公开(公告)日：2024-08-08

    申请号：US18236445

    申请日：2023-08-22

    Applicant: KUBOTA CORPORATION

    Inventor： Hiroaki HOSOZAWA

    IPC: B60L1/00

    CPC classification number: B60L1/00 ,  B60L2200/40 ,  B60L2250/16 ,  B60L2270/00

    Abstract: A method for generating a new ground speed power take-off (G-PTO) map that includes a relationship between a current work vehicle speed and a target speed of a power take-off (PTO). The method includes setting a work vehicle speed for a point to be included in the new G-PTO map, setting a PTO speed for the point to be included in the new G-PTO map, plotting the point on the new G-PTO map, and plotting a line on the new G-PTO map based on the point.

    Materials handling and other vehicles with functional responses to runtime calculation
    49.
    发明授权
    Materials handling and other vehicles with functional responses to runtime calculation 有权

    公开(公告)号：US12049398B1

    公开(公告)日：2024-07-30

    申请号：US18457564

    申请日：2023-08-29

    Applicant: Crown Equipment Corporation

    Inventor： Roland Muller ,  Mingzhi Ma ,  Bin Feng Sha

    IPC: B66F9/24 ,  B60L1/00 ,  B60L15/20 ,  G07C5/00

    CPC classification number: B66F9/24 ,  B60L1/00 ,  B60L15/20 ,  B60L2240/54 ,  G07C5/004

    Abstract: Battery management systems, removable battery assemblies with integrated battery management systems, and vehicles are provided for implementing the various runtime calculations disclosed herein. A vehicle, which may be a materials handling vehicle, is provided comprising a drive subsystem, a removable battery assembly, and vehicle control hardware. The battery assembly comprises a battery management system programmed to input or generate a state of charge signal representing a state of charge SOC of the battery assembly, implement a first EWMA signal filter F1 to calculate a succession of contemporary current calculations IC, implement a second EWMA signal filter F2 to calculate a runtime current IR, wherein the runtime current calculation IR comprises the contemporary current calculations IC from the first EWMA signal filter F1, and implement a remaining runtime calculation such that the vehicle control hardware responds functionally to the runtime calculation.

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