Electrical system comprising a circuit for detecting an electrical insulation fault

    公开(公告)号:US10391865B2

    公开(公告)日:2019-08-27

    申请号:US15735257

    申请日:2016-05-31

    Applicant: Renault S.A.S.

    Abstract: The invention relates to an electrical system comprising: —terminals (V+, V−) capable of being connected to an installed electrical power source (4) capable of delivering an electrical voltage between said terminals; —a circuit for detecting an electrical insulation fault between the electrical power source and a housing (14) forming a floating electrical ground. The detection circuit comprises: •a controllable voltage generator (40) capable of polarizing the housing and the single first terminal at different potentials; •a current measurement device (44) measuring current entering on said first terminal and leaving at a point of the source; •a control unit (46) capable of calculating a value of at least one insulation resistance from said at least one measured current value.

    Device for detecting and measuring an insulation fault
    2.
    发明授权
    Device for detecting and measuring an insulation fault 有权
    用于检测和测量绝缘故障的装置

    公开(公告)号:US09341667B2

    公开(公告)日:2016-05-17

    申请号:US14425214

    申请日:2013-08-26

    Applicant: RENAULT s.a.s.

    Abstract: A device for detecting an insulation fault of a direct voltage source that can induce electrocution, including: first and second input terminals for the voltage source; first and third resistive dipoles connected in series between an electric ground and the second input terminal, the first resistive dipole having a resistance at least ten times higher than that of the third dipole; a second resistive dipole and a switch connected in series between the first input terminal and the electric ground; and a detection circuit connected to the terminals of the third dipole, configured to alternately open and close the switch, measure the voltage at the terminals of the third dipole, and determine the amplitude of an insulation fault according to the measured voltages.

    Abstract translation: 一种用于检测可诱发触电的直流电压源的绝缘故障的装置,包括:用于电压源的第一和第二输入端; 第一和第三电阻偶极子串联连接在电接地和第二输入端之间,第一电阻偶极具有比第三偶极高至少十倍的电阻; 第二电阻偶极子和串联连接在第一输入端子和电接地之间的开关; 以及连接到所述第三偶极子的端子的检测电路,被配置为交替地打开和关闭所述开关,测量所述第三偶极子的端子处的电压,并且根据测量的电压确定绝缘故障的幅度。

    DEVICE FOR DETECTING AND MEASURING AN INSULATION FAULT
    3.
    发明申请
    DEVICE FOR DETECTING AND MEASURING AN INSULATION FAULT 有权
    用于检测和测量绝缘故障的装置

    公开(公告)号:US20150219707A1

    公开(公告)日:2015-08-06

    申请号:US14425214

    申请日:2013-08-26

    Applicant: RENAULT s.a.s.

    Abstract: A device for detecting an insulation fault of a direct voltage source that can induce electrocution, including: first and second input terminals for the voltage source; first and third resistive dipoles connected in series between an electric ground and the second input terminal, the first resistive dipole having a resistance at least ten times higher than that of the third dipole; a second resistive dipole and a switch connected in series between the first input terminal and the electric ground; and a detection circuit connected to the terminals of the third dipole, configured to alternately open and close the switch, measure the voltage at the terminals of the third dipole, and determine the amplitude of an insulation fault according to the measured voltages.

    Abstract translation: 一种用于检测可诱发触电的直流电压源的绝缘故障的装置,包括:用于电压源的第一和第二输入端; 第一和第三电阻偶极子串联连接在电接地和第二输入端之间,第一电阻偶极具有比第三偶极高至少十倍的电阻; 第二电阻偶极子和串联连接在第一输入端子和电接地之间的开关; 以及连接到所述第三偶极子的端子的检测电路,被配置为交替地打开和关闭所述开关,测量所述第三偶极子的端子处的电压,并且根据测量的电压确定绝缘故障的幅度。

    System and corresponding method for managing a battery comprising a plurality of battery cells

    公开(公告)号:US10109893B2

    公开(公告)日:2018-10-23

    申请号:US15115411

    申请日:2015-01-15

    Applicant: RENAULT S.A.S

    Abstract: A system for managing a battery having a plurality of battery cells connected in series, a plurality of control circuits connected in parallel with a battery cell and at least one electrical connection between a first control circuit of a first cell and a second control circuit of a second cell. Each control circuit is capable of emitting a signal representing physical parameters of its respective battery cell. There is a control unit to control the state of the battery on the basis of the signals representative of the physical parameters. There is a power bus electrically connecting said battery cells to one another in series and each control circuit delivers the representative signal via the power bus after reception of a synchronization signal received.

    SYSTEM OF ACCUMULATOR BATTERIES WITH MORE RELIABLE VOLTAGE MEASUREMENT

    公开(公告)号:US20170133728A1

    公开(公告)日:2017-05-11

    申请号:US15322241

    申请日:2015-06-25

    Applicant: RENAULT S.A.S.

    Abstract: An accumulator battery system includes series-connected accumulators with potentials across stages powering corresponding controllers that measure potential differences between terminals of accumulators. A first analog-to-digital converter encodes the potential measured between terminals of an accumulator. A first output delivers a first digital sequence corresponding to the encoded potential difference, logic levels of which are defined by at least two potentials across the first-stage accumulator terminals. A decoder decodes a potential measured by the first control-device from the first digital sequence. A second analog-to-digital converter selectively encodes a potential difference measured between terminals of a second-stage accumulator of the second stage and two potentials of the digital sequence received on the input. A second control-device processor extrapolates a potential difference across the first-stage accumulator terminal of the first stage based on two potentials of the received digital sequence.

    SYSTEM AND CORRESPONDING METHOD FOR MANAGING A BATTERY COMPRISING A PLURALITY OF BATTERY CELLS
    7.
    发明申请
    SYSTEM AND CORRESPONDING METHOD FOR MANAGING A BATTERY COMPRISING A PLURALITY OF BATTERY CELLS 审中-公开
    用于管理包含多个电池的电池的系统和相应方法

    公开(公告)号:US20170005372A1

    公开(公告)日:2017-01-05

    申请号:US15115411

    申请日:2015-01-15

    Applicant: RENAULT S.A.S.

    Abstract: A system for managing a battery having a plurality of battery cells connected in series, a plurality of control circuits connected in parallel with a battery cell and at least one electrical connection between a first control circuit of a first cell and a second control circuit of a second cell. Each control circuit is capable of emitting a signal representing physical parameters of its respective battery cell. There is a control unit to control the state of the battery on the basis of the signals representative of the physical parameters. There is a power bus electrically connecting said battery cells to one another in series and each control circuit delivers the representative signal via the power bus after reception of a synchronization signal received.

    Abstract translation: 一种用于管理具有串联连接的多个电池单元的电池的系统,与电池单元并联连接的多个控制电路以及第一单元的第一控制电路和第一控制电路的至少一个电连接 第二个细胞。 每个控制电路能够发出表示其相应电池单元的物理参数的信号。 控制单元根据表示物理参数的信号来控制电池的状态。 有一个电力总线将所述电池单元彼此串联连接,并且每个控制电路在接收到接收的同步信号之后通过电源总线传送代表信号。

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