Abstract: A hybrid transmission for a motor vehicle including a heat engine and a driving electrical machine, including two concentric primary shafts, each of which includes at least one intermediate drive on a secondary shaft connected to wheels of the vehicle. The transmission includes a first mechanism for coupling the two primary shafts together, and capable of assuming at least three positions, of positions in which: the heat engine is separated from the drive train connecting the electrical machine to the wheels; the heat engine drives the wheels with or without the assistance of the electrical machine; and the heat engine and the electrical machine are coupled together to add respective torques thereof to the wheels.

Abstract: A method of controlling an electric motor including a rotor and a stator, sensors for measuring currents flowing in the rotor and in the stator, a mechanism determining setpoints of current, and a mechanism processing the signals from the measurement sensors, the method including: determining intermediate signals by a transformation according to which stator voltages and rotor voltages of the electric motor are expressed in a decoupled reference system as a function of the signals received from the processing means, and determining signals for regulating voltage as a function of the currents flowing in the rotor and in the stator of the electric motor satisfying the setpoints of current as a function of the intermediate signals obtained by transformation.

Abstract: A rapid charging device for a battery includes a filtering stage of resistive-inductive-capacitive type to be connected to a three-phase network, a buck stage, a boost stage to be connected to the battery, an induction winding interposed between the buck stage and the boost stage, and a regulating unit capable of imposing chopping duty cycles on the buck stage and on the boost stage. The regulating unit compensates the phase shift induced by the filtering stage between the currents and the voltages taken from each phase of the three-phase network and also maintains the value of the current amplitude passing through the winding above a non-zero predefined threshold.

Abstract: A method for controlling a hybrid power unit with power bypass for an automobile including at least two driving wheels, wherein the power unit includes a thermal engine, at least two electric machines, and an infinitely variable transmission mechanically connecting the thermal engine, the two electric machines, and the driving wheels. In the method, an initially stopped thermal engine is brought, in an independent manner and in plural operation phases, to a rotation speed that is sufficient for participating in propulsion of the vehicle, the vehicle moving under action of the electric machines.

Abstract: A system for controlling change in mode of an infinitely variable transmission including a first operation mode at high torque at high speed and a second operation mode at high torque at low speed, fitted to a motor vehicle that includes at least two electric machines, with at least one internal combustion engine.

Abstract: A method of controlling a switched-mode power supply and corresponding power supply including a switching cell including two series-connected configurable on/off switches; in which the switching cell is configured cyclically: for a duration T1, in an on state, in which a first on/off switch is closed and the second on/off switch is open; and, for a duration T2, in an off state, in which the second on/off switch is closed and the first on/off switch is open. The switching cell is also configured in a transition state, in which the first on/off switch and the second on/off switch are open: for a duration Tm1 between the off state and the on state; and for a duration Tm2 between the on state and the off state; and the durations T1 and/or T2 of the on and off states are determined according to the durations Tm1 and/or Tm2, respectively, of the transition states.

Abstract: A method for controlling a hybrid power unit with power bypass for an automobile including at least two driving wheels, wherein the power unit includes a thermal engine, at least two electric machines, and an infinitely variable transmission mechanically connecting the thermal engine, the two electric machines, and the driving wheels. In the method, an initially stopped thermal engine is brought, in an independent manner and in plural operation phases, to a rotation speed that is sufficient for participating in propulsion of the vehicle, the vehicle moving under action of the electric machines.