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    Method for controlling a state of charge of a vehicle battery
    5.
    发明授权
    Method for controlling a state of charge of a vehicle battery 有权

    公开(公告)号：US09707858B2

    公开(公告)日：2017-07-18

    申请号：US14869128

    申请日：2015-09-29

    Applicant: Bayerische Motoren Werke Aktiengesellschaft

    Inventor： Christopher Deisler

    IPC: B60L11/18 ,  G01C21/26

    CPC classification number: B60L11/1872 ,  B60L11/1861 ,  G01C21/26

    Abstract: A method is provided for controlling a state of charge of a vehicle battery in order to ensure the starting capability of the vehicle. A battery temperature prediction for the vehicle battery is determined and the battery temperature prediction is used to determine a lower state-of-charge limit of the vehicle battery. The amount of charge in the vehicle battery is controlled in such a way that the state of charge of the battery at least does not fall below the lower state-of-charge limit. Data of a navigation system integrated in the vehicle or coupled to the vehicle are taken into account in the determination of the battery temperature prediction.

    Energy Storage Apparatus for a Motor Vehicle and Method for Operating the Energy Storage Apparatus
    6.
    发明申请
    Energy Storage Apparatus for a Motor Vehicle and Method for Operating the Energy Storage Apparatus 审中-公开

    公开(公告)号：US20170197520A1

    公开(公告)日：2017-07-13

    申请号：US15468533

    申请日：2017-03-24

    Applicant: Bayerische Motoren Werke Aktiengesellschaft

    Inventor： Moritz SCHINDLER ,  Markus MAUERER

    IPC: B60L11/18 ,  H02J7/14 ,  H02J7/00

    CPC classification number: B60L11/1855 ,  B60L11/1853 ,  B60L11/1857 ,  B60L11/1861 ,  B60L11/1868 ,  B60L11/1872 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  H02J7/0021 ,  H02J7/0047 ,  H02J7/1423 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/7055 ,  Y02T10/7066

    Abstract: An energy storage apparatus for an onboard electrical system of a motor vehicle has a first electrical energy store characterized by a first voltage characteristic curve defining the quiescent voltage of the first store depending on the relative state of charge of the first store, and a second electrical energy store which can be connected in parallel with the first electrical energy store by a controllable switching element and which is characterized by a second voltage characteristic curve defining the quiescent voltage of the second electrical energy store depending on the relative state of charge of the second store. A first voltage value range covered by the first voltage characteristic curve and a second voltage value range which is covered by the second voltage characteristic curve partially overlap. The energy storage apparatus further has a device for determining the state of charge of the first energy store and/or of the second energy store. The device establishes the state of charge either by a quiescent voltage measurement device or by a state of charge determination device by balancing a respective battery current. The device opens the controllable switching element when the motor vehicle is in a state similar to the quiescent state and a quality value determined during a previous state of charge determination process in parallel with the state of charge and expressing the quality of the balancing exceeds a predefined threshold value. When the two criteria are fulfilled, the quiescent voltage measurement device for determining the state of charge of at least the first energy store is activated.

    COOLING SYSTEM FOR VEHICLE DEVICE
    10.
    发明申请
    COOLING SYSTEM FOR VEHICLE DEVICE 审中-公开

    公开(公告)号：US20170080821A1

    公开(公告)日：2017-03-23

    申请号：US15312235

    申请日：2015-05-20

    Applicant: JAGUAR LAND ROVER LIMITED

    Inventor： Ian HUGHES ,  Baptiste BUREAU

    IPC: B60L11/18 ,  B60W20/00 ,  H01M10/633 ,  H01M10/613 ,  H01M10/625

    CPC classification number: B60L11/1874 ,  B60L11/1872 ,  B60L2240/545 ,  B60L2240/662 ,  B60L2260/54 ,  B60L2260/56 ,  B60W20/00 ,  H01M10/613 ,  H01M10/625 ,  H01M10/633 ,  H01M2220/20 ,  Y02T10/7005 ,  Y02T10/705 ,  Y10S903/907

    Abstract: A cooling system for cooling a device (150), e.g. a battery, within a vehicle (100), especially a hybrid electric vehicle, the cooling system comprising: a first cooling subsystem (180) for cooling the device (150) and having a relatively low rate of energy consumption, e.g. an ambient air-based cooling apparatus, a second cooling subsystem (182) for cooling the device (150) and having a relatively high rate of energy consumption, e.g. a refrigeration-based cooling apparatus, evaluation means (190P, 190R) comprising predictive evaluation means (190P) for providing a predictive output responsive to a determination whether a temperature of the device (150) will exceed a first prescribed threshold value within a prescribed period of time, an evaluation output of the evaluation means (190P, 190R) being dependent on at least the predictive output of the predictive evaluation means (190P), assessment means (190A) for providing an assessment output responsive to a determination whether the temperature of the device (150) is lowerable by the first cooling subsystem (180) alone, and control means for selectively controlling actuation of the first cooling subsystem (180) or the second cooling subsystem (182) in dependence on the evaluation output of the evaluation means (190P, 190R) and the assessment output of the assessment means (190A). By use of the combined evaluation methodology to operate the lower-energy cooling subsystem (180) in a pre-emptive manner, before or unless the higher-energy cooling subsystem (182) is actually needed, a more energy efficient system is achieved.

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