Abstract: The invention relates to an electrical network (1) for automotive vehicle comprising: —a first electrical subnetwork (2), said first electrical subnetwork (2) comprising in parallel an electrical generator (21), a first energy store (22), at least one first electrical consumer (23); a second electrical subnetwork (3), said second electrical subnetwork (3) comprising in parallel a second energy store (31), a second electrical consumer (32), a third electrical consumer (33); a DC/DC converter (4), configured to charge the second energy store (31) from the first subnetwork.

Abstract: A method for controlling regenerative braking of an automobile micro-hybrid system is disclosed. The system includes at least a rotary electrical machine and an electrochemical battery. The method includes a step, when the electrochemical battery has a first predetermined energy state, which corresponds to an initial optimum charging state, of commanding a reduction of the first energy state, to a second energy state corresponding to an intermediate charging state, so as to make a charging capacity available in the electrochemical battery during a subsequent opportunity for recovery of electrical energy during, for example, a braking phase of the vehicle.

Abstract: Method used in a vehicle provided with an electrical power system (1), including an electrical engine/generator (3) and first electrical power storage (2) having a first nominal voltage, and moreover provided with a backup electrical system (5), including a second electrical power storage (6) having a second nominal voltage less than the first nominal voltage. The electrical power system and the backup system are connected by a reversible DC/DC converter (9). A first optimal power current strength (IESS1), flowing in the first storage (2), and a second optimal power current strength (IESS2), flowing in the second storage (6), are determined on the basis of operational parameters for the first and second electrical power storages so as to minimize losses due to heat dissipation. The first and second optimal power current strengths (IESS1, IESS2) are also determined on the basis of a reversible DC/DC converter output.

Abstract: Described is a micro-hybrid system for an automobile including: 1) a rotating electrical machine (i.e., a starter/alternator); 2) at least one power converter connectable to an electricity distribution network of the automobile, this network including a power storage unit; and, 3) a control circuit capable of controlling the power converter to provide a power supply current to the electricity distribution network.

Abstract: A method for controlling regenerative braking of an automobile micro-hybrid system is disclosed. The system includes at least a rotary electrical machine and an electrochemical battery. The method includes a step, when the electrochemical battery has a first predetermined energy state, which corresponds to an initial optimum charging state, of commanding a reduction of the first energy state, to a second energy state corresponding to an intermediate charging state, so as to make a charging capacity available in the electrochemical battery during a subsequent opportunity for recovery of electrical energy during, for example, a braking phase of the vehicle.

Abstract: A method and a device (5) for controlling an engine stop/restart system (1) to be mounted on an automobile. The device (5) includes a control module (6) that obtains at least one parameter (Tbat, Ubat, Ibat) representative of the state of an energy storage unit (8), determines information on the energetic state of the energy storage unit (8) from said at least one obtained parameter (Tbat, Ubat, Ibat), and controls the engine stop/restart system (1) based on the determined energetic state information. The energetic state information is set at a predetermined value when the method controls a stop authorization of the engine stop/restart system (1).

Abstract: Described is a micro-hybrid system for an automobile including: 1)a rotating electrical machine (i.e., a starter/alternator); 2) at least one power converter connectable to an electricity distribution network of the automobile, this network including a power storage unit; and, 3)a control circuit capable of controlling the power converter to provide a power supply current to the electricity distribution network.

Abstract: The management of a pool of batteries is an intelligent management taking account of the state of health of all the batteries of the pool and of the evolution thereof with time. The method for managing includes determination of priority criteria and charging of a battery selected according to the priority criteria. After the selected battery has been charged, electrical parameters representative of the battery are measured, then the state of health of the selected battery is analyzed according to the measured electrical parameters. The priority criteria are then updated according to the state of health of the battery. Selection of the next battery to be recharged is performed according to the updated priority criteria. The measured parameters used for analyzing the state of health are preferably representative of a coup de fouet effect during a partial discharge of a fully charged battery.

Abstract: The battery charging method uses a pulsed current alternately taking first and second amplitudes during first and second periods (t1, t2). At least one of the parameters, amplitude and duration, of the current during the first period (t1) is automatically servo-controlled as a function of a first value of the slope (P1) of the voltage (U), measured at the terminals of the battery to be charged. The first slope value (P1) is calculated at least at the end of the first period (t1). Likewise, a second value of the slope (P2) of the voltage (U) can be calculated at least at the end of the second period (t2) and at least one of the parameters of the current during the second period (t2) can be automatically servo-controlled as a function of the second slope value (P2). The different parameters of the pulsed charging current are thus continuously servo-controlled as a function of the voltage slope to keep the slope (P) within a range comprised between 1 mV/s and 6 mV/s.

Abstract: The battery charging method uses a pulsed current alternately taking first and second amplitudes during first and second periods (t1, t2). At least one of the parameters, amplitude and duration, of the current during the first period (t1) is automatically servo-controlled as a function of a first value of the slope (P1) of the voltage (U), measured at the terminals of the battery to be charged. The first slope value (P1) is calculated at least at the end of the first period (t1). Likewise, a second value of the slope (P2) of the voltage (U) can be calculated at least at the end of the second period (t2) and at least one of the parameters of the current during the second period (t2) can be automatically servo-controlled as a function of the second slope value (P2). The different parameters of the pulsed charging current are thus continuously servo-controlled as a function of the voltage slope to keep the slope (P) within a range comprised between 1 mV/s and 6 mV/s.

Abstract: The management of a pool of batteries is an intelligent management taking account of the state of health of all the batteries of the pool and of the evolution thereof with time. The method for managing includes determination of priority criteria and charging of a battery selected according to the priority criteria. After the selected battery has been charged, electrical parameters representative of the battery are measured, then the state of health of the selected battery is analyzed according to the measured electrical parameters. The priority criteria are then updated according to the state of health of the battery. Selection of the next battery to be recharged is performed according to the updated priority criteria. The measured parameters used for analyzing the state of health are preferably representative of a coup de fouet effect during a partial discharge of a fully charged battery.