Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Renault S.a.s.

Commissariat a L'energie Atomique

Sylvain Bacquet

Ghislain Despesse

Eric Fernandez

Yan Lopez

Léandro Cassarino

Rémy Thomas

Thierry Thomas

Elisabeth Crochon

Bertrand Delaet

Sylvain Leirens

Jacques Reverdy

Michel Mensler

François Vacherand

Michael Palmieri

Remy Thomas

Marco Ranieri

Leandro Cassarino

Warody Lombardi

Frédéric Auzas

François Tavernier

Yann Tetu

Ricardo Malherbi Martins

The invention relates to an electrical power-supply system comprising:

Power supply system

A method of controlling a battery including a first control circuit and a plurality of modules arranged in series between first and second terminals. Each module includes, between third and fourth terminals, electric cells and switches and a second switch control circuit. The battery further includes at least one first data transmission bus coupling the first control circuit to each second control circuit, the first control circuit including a memory having chained lists stored therein. Each chained list includes elements each including an identifier of one of the electric cells and at least one first pointer designating another element in the chained list.

Battery pack

A battery with switched accumulators, including: a first cell; a plurality of second cells series-connected with the first cell, each first and second cell including: an electric accumulator series-connected with a first switch, a second switch connected in parallel with the accumulator and the first switch, and a first diode, the cathodes of the first diodes being connected to an output node, the anode of the accumulator of the first cell being connected to ground, the anode of the first diode of each second cell being coupled to the cathode of the accumulator by at least one third switch; and a control circuit capable of measuring characteristics of at least certain accumulators and of controlling the first, second, and third switches according to the characteristics.

Battery with switched accumulators

A method of controlling a battery including a first control circuit and a plurality of modules arranged in series between first and second terminals, each module including, between third and fourth terminals, electric cells and switches and a second switch control circuit. The method includes the determination by the first control circuit of a first priority table associated with a battery charge operation and of a second priority table associated with a battery discharge operation, the first priority table including a first classification of the priorities of the electric cells for the charge operation and the second priority table comprising a second classification of the priorities of the electric cells for the discharge operation.

Electrical accumulator battery

A method for controlling a power supply device of an electrical system, the device including at least one separate power supply assembly per phase of the electrical system, each power supply assembly including at least one battery pack defined by a state parameter and provided with at least one battery to supply a control voltage to the phase to which it is connected, taking into account at least one setpoint value. The method includes executing at least one correction block receiving as input each setpoint value and the state parameter of each battery pack of the power supply assemblies of the system, and for each power supply assembly, the correction block is configured to determine a correction value to be applied directly or indirectly to its setpoint value.

Method for controlling a power supply device of an electrical system

A method of controlling an electric system including electric cells. The method includes the steps of: a) determining a first (second) priority table including first (second) cell priority levels for a system charge (discharge) operation; b) determining the average current exchanged by each cell over a time window according to the cell implementation number in a cell connection sequence; c) determining a classification of the cell implementation numbers by increasing or decreasing order of the average current; d) assigning the implementation numbers according to the order of the classification to the cells by increasing or decreasing number of the priority levels of the first or second priority table; and e) connecting or disconnecting the cells according to the order of the assigned implementation numbers.

Electrical system comprising switched cells and method for controlling such a system

A battery including a first control circuit and a plurality of modules arranged in series between first and second terminals, each module including electric cells and switches coupling the cells to third and fourth terminals and a second switch control circuit. The battery includes a first data transmission bus coupling the first control circuit to each second control circuit and a second data transmission bus coupling the first control circuit to each second control circuit. The first control circuit is capable of transmitting first data to the second control circuits over the first bus at a first rate and is capable of transmitting second data to the second control circuits over the second bus at a second rate smaller than the first rate.

Data transmission techniques associated with a battery pack

A method of controlling a battery including a first control circuit and a plurality of modules arranged between first and second terminals. Each module comprises electric cells. The battery further includes a sensor of the current flowing through the first terminal. The method includes the successive steps of: updating a first counter representative of the quantity of charges flowing through the first terminal; for each electric cell, for each connection of the electric cell to the other electric cells, storing into first data the value of the first counter on connection of the electric cell and for each disconnection of the electric cell from the other electric cells, storing a second counter equal to the difference between the value of the first counter on disconnection of the electric cell and the first data of said electric cell.

A method of controlling a battery including a first control circuit and a plurality of modules arranged in series between first and second terminals, each module including electric cells and switches and a second switch control circuit, the battery further including at least one first data transmission bus coupling the first control circuit to each second control circuit, the method including the transmission, by the first control circuit to the second control circuits, of first data representative of an electric cell configuration to be obtained to follow a set point for the delivery of a voltage and/or of a current between the first and second terminals, the second control circuits connecting or disconnecting the electric cells based on said first data and on a classification of the priorities of the electric cells.

Method and apparatus for controlling a battery pack

A method of controlling a battery including a first control circuit and a plurality of modules arranged in series between a first terminal and a second terminal, each module of the plurality of modules including electric cells and switches coupling the electric cells and a second switch control circuit, the battery further including at least one first data transmission bus coupling the first control circuit to each second control circuit. The first control circuit includes a memory-having, for each electric cell, an identifier of said each electric cells and a priority level for connection of said each electric cell with other electric cells among priority levels stored therein.

A battery including: a power supply bus; an assembly of electric cells and of first switches coupling the cells; second switches forming an H bridge and coupling said assembly to nodes; a first circuit for supplying first control signals to the first and second switches; a second circuit for delivering a first power supply voltage to the first circuit based on the voltage across one of the cells; a third circuit for supplying second control signals to at least two of the second switches and connected to the power supply bus; and first diodes coupling the first circuit to the two second switches and second diodes coupling the third circuit to the two second switches.

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

A method for detecting a malfunction of a battery control system including a plurality of sensors intended to measure separate physical quantities of the battery, the method including the following steps: a) reading output values of the sensors; and b) determining, by means of a processing unit, whether the read values are consistent with a physical phenomenon conditioning relationships between at least two of the quantities.

Method for detecting a malfunction of a battery control system

The invention relates to a device () for emitting energy by electromagnetic coupling which comprises: a single generator () outputting an AC electric signal between two terminals; a series of resonant modules () each including a capacitor and a first inductance, and first to fourth terminals (Ai, Bi, Ci, Di), the first (Ai) and second (Bi) terminals of a first module being connected to terminals of the generator, and the first (Ai) and second (Bi) terminals of the other module or modules being connected to the third (Ci) and fourth (Di) terminals of the module of the previous row.

System for transferring energy by electromagnetic coupling

A system in a battery in which a plurality of elementary cells are connected between two first nodes. The system includes: a first device configured to apply an alternating signal to the first nodes; at least one second device connected to the second nodes of the cells; and at least one resonant element, an inductive element of which includes an inductance itself of the battery between the two nodes.

Growing community of inventors

Chasselay, France

Sylvain Bacquet