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    Method for managing the operating range of a battery
    4.
    发明授权
    Method for managing the operating range of a battery 有权

    公开(公告)号：US10222428B2

    公开(公告)日：2019-03-05

    申请号：US15510083

    申请日：2015-09-02

    Applicant: RENAULT s.a.s.

    Inventor： Antoine Saint-Marcoux ,  Bruno Delobel

    IPC: H01M6/50 ,  G01R31/36 ,  B60L11/14 ,  B60L11/18 ,  H01M10/44 ,  H02J7/00 ,  H01M10/42 ,  B60R16/033 ,  H01M10/48

    Abstract: A method for managing an authorized operating range of a battery, the authorized operating range being limited between a minimum level and a maximum level of state of charge of the battery. The method includes estimating a state of health in power of the battery, the state of health in power characterizing capacity of the battery to supply a minimum required power level across an entirety of the operating range; and determining the minimum level of state of charge of the battery in accordance with the estimated state of health in power, the minimum level of state of charge being increased when the state of health in power decreases.

    Method for energy management of a rechargeable traction battery of a hybrid vehicle
    5.
    发明授权
    Method for energy management of a rechargeable traction battery of a hybrid vehicle 有权

    公开(公告)号：US10196053B2

    公开(公告)日：2019-02-05

    申请号：US15538251

    申请日：2015-12-18

    Applicant: RENAULT s.a.s.

    Inventor： Bruno Delobel ,  Antoine Saint-Marcoux

    IPC: B60W20/00 ,  H02J7/00 ,  B60L11/18 ,  B60W20/13 ,  B60W10/26 ,  H02J7/04

    Abstract: A method manages a state of charge of a traction battery of a rechargeable hybrid vehicle including a hybrid power train to provide propulsion. The battery being capable of operating according to a first operating mode over a state of charge range, of which an amplitude is bounded by predefined maximum and minimum state of charge values, in which the battery supplies substantially all power necessary for propulsion, and a second operating mode, in which the state of charge of the battery is kept substantially constantly around an equilibrium state of charge value. The method includes estimating an ageing state of the battery, comparing the estimated ageing state of the battery in relation to a given ageing state threshold, and reducing the amplitude of the state of charge range linked to the first operating mode when the ageing state of the battery rises above the given ageing state threshold.

    Method for estimating the state of health of an electrochemical cell for storing electrical energy
    8.
    发明授权
    Method for estimating the state of health of an electrochemical cell for storing electrical energy 有权

    公开(公告)号：US11143709B2

    公开(公告)日：2021-10-12

    申请号：US14895565

    申请日：2014-05-26

    Applicant: RENAULT s.a.s.

    Inventor： Bruno Delobel ,  Antoine Saint-Marcoux

    IPC: G01R31/36 ,  G01R31/392 ,  G01R31/367 ,  G01R31/389 ,  G01R31/396 ,  G01R31/3835

    Abstract: A method for estimating a state of health of an electrochemical cell for storing electrical energy includes applying at least one current strength peak to the cell, the current peak passing through the cell, measuring a variation, as a function of a time t elapsed after the application of the current peak, of voltage U at the terminals of the cell, and calculating at least one coefficient αI1 and at least one coefficient U0,I1 such that the function √{square root over (t)}→αI1×√{square root over (t)}+U0,I1 is a linear approximation of the variation of the voltage U as a function of √{square root over (t)} for √{square root over (t)}≥C, where C>0. The method is used in electrical or hybrid vehicles.

    Estimation of the state of deterioration of an electric battery
    9.
    发明授权
    Estimation of the state of deterioration of an electric battery 有权

    公开(公告)号：US10180464B2

    公开(公告)日：2019-01-15

    申请号：US14908380

    申请日：2014-07-16

    Applicant: RENAULT s.a.s

    Inventor： Antoine Saint-Marcoux ,  Masato Origuchi ,  Bruno Delobel ,  Thomas Creach ,  Juan-Pablo Soulier

    IPC: G01R31/36 ,  B60L3/00 ,  B60L11/18 ,  H01M10/44 ,  H01M10/48

    Abstract: A method for managing an electrochemical accumulator or a storage battery includes determining an estimated value of a state of deterioration of the accumulator from the accumulator's history of voltage values, intensity of current flow, and temperature. The estimated value is a barycentric value of the state of deterioration calculated as a barycenter of at least two values. The at least two values include a first value indicative of the state of deterioration of the accumulator calculated by a first method and a second value indicative of the state of deterioration of the accumulator calculated by a second method different from the first method. From an initial commissioning state of the accumulator, barycentric coefficients are varied at least once to calculate the next barycentric value when a previous value of the state of deterioration of the accumulator, calculated according to the first method, has passed a first threshold.

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