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    Discharging a bus of an electrically powered or hybrid vehicle
    1.
    发明授权
    Discharging a bus of an electrically powered or hybrid vehicle 有权

    公开(公告)号：US12103403B2

    公开(公告)日：2024-10-01

    申请号：US17254538

    申请日：2019-05-30

    申请人： JAGUAR LAND ROVER LIMITED

    发明人： Adrian Berry ,  Andrew Cotta ,  Duncan Hamilton

    IPC分类号： B60L3/00 ,  B60K6/28 ,  B60L3/04 ,  B60R16/023

    CPC分类号： B60L3/0007 ,  B60L3/04 ,  B60K6/28 ,  B60R16/0238 ,  B60Y2200/91 ,  B60Y2200/92

    摘要： The present disclosure relates to a sub-system for a vehicle comprising an electrical power bus (12, 14, 16) for distributing electrical power from an electrical energy storage means (10) to various different electrical components of the vehicle, such as a combined electric traction motor/generator (20). The sub-system comprises means for disconnecting the electrical energy storage means (10) from the bus (12, 14, 16), means (6) for measuring the potential difference between a rail of the bus of a first polarity and a chassis (18) of the vehicle, and means (4) for connecting the rail of the bus of the first polarity to the chassis (18) or a terminal of the electrical energy storage means of opposite polarity if the potential difference between the rail of the bus of the first polarity and the chassis is measured to be greater than a predetermined level, until the potential difference between the rail of the bus of the first polarity and the chassis is less than the predetermined level, then disconnecting the rail from the chassis or the terminal of the electrical energy storage means of opposite polarity, wherein the means (6) for connecting the rail of the bus to, then disconnecting the rail of the bus from, the chassis comprises the means (6) for measuring the potential difference between the rail of the bus and the chassis. This technique may be used to at least partially discharge a Y capacitance on the rail of the bus in question. The Y capacitance on any or all rails of the bus, of either polarity (positive or negative), may be discharged in this fashion, for example in the event of a collision of the vehicle, in order to render a high-voltage (HV) electrical supply sub-system (2) more safe. The present invention also provides a vehicle comprising such a sub-system and a method of reducing a potential difference between on the one hand, an electrical power bus (12, 14, 16) for distributing electrical power from an electrical energy storage means (10) of a vehicle and on the other, a chassis (18) of the vehicle to below a predetermined level.

    ELECTRIFIED FIRE FIGHTING VEHICLE
    9.
    发明公开
    ELECTRIFIED FIRE FIGHTING VEHICLE 审中-公开

    公开(公告)号：US20240149087A1

    公开(公告)日：2024-05-09

    申请号：US18501169

    申请日：2023-11-03

    申请人： Oshkosh Corporation

    发明人： David Archer ,  Eric Linsmeier ,  Chad Radtke ,  Tim Nelson ,  Seth Newlin ,  David Kay

    IPC分类号： A62C27/00 ,  B60K6/28

    CPC分类号： A62C27/00 ,  B60K6/28

    摘要： An electrified fire fighting vehicle includes a chassis having a pair of frame rails, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, an electric motor coupled to the chassis between the pair of frame rails, an energy storage system positioned between the cab and the body, and a shield. The energy storage system includes a power cable coupled to the electric motor. The shield is positioned (a) between the pair of frame rails and (b) at least partially along and around a motor housing of the electric motor such that the power cable is disposed between the motor housing and the shield.

    ELECTRIFIED FIRE FIGHTING VEHICLE
    10.
    发明公开
    ELECTRIFIED FIRE FIGHTING VEHICLE 审中-公开

    公开(公告)号：US20240149086A1

    公开(公告)日：2024-05-09

    申请号：US18501149

    申请日：2023-11-03

    申请人： Oshkosh Corporation

    发明人： Eric Linsmeier

    IPC分类号： A62C27/00 ,  B60K6/28 ,  B60K6/48

    CPC分类号： A62C27/00 ,  B60K6/28 ,  B60K6/48 ,  B60L7/10 ,  B60Y2200/92

    摘要： An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, an axle coupled to the chassis, a battery pack having a maximum capacity, a driveline coupled to the axle, and a controller. The driveline includes an electric motor coupled to the battery pack. The controller is configured to prevent charging the battery pack beyond a charge threshold to maintain an amount of storage capacity between the charge threshold and the maximum capacity to accommodate energy generated during one or more regenerative braking events and permit charging the battery pack beyond the charge threshold up to an overcharge threshold in response to receiving an override command or a certain mode selection. The overcharge threshold is greater than the charge threshold but less than the maximum capacity.