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: The regulator/brush-holder assembly (1) comprises a support (2) and an electrical circuit (5, 6) comprising a regulating element (5) connected by microwires to a trace circuit (6). The electrical circuit further includes a filtering circuit (10) separate from the regulating element and connected by microwires to the trace circuit. According to one particular embodiment, the filtering circuit comprises an insulating substrate (11) and surface-mounted components (C1, C2, S1, S2, V). A ground plane (19) and/or one or more ground pads may be provided for connection to a ground trace of the trace circuit. The filtration frequencies of the filter circuit extend from 100 kHz to 1 GHz.

Abstract: Said electronic power module (10) includes: a stack (14) comprising a metal layer forming an electric circuit (26) and intended for supporting an electronic power component (18) such as a semiconductor; a metal body forming a heat drain (20); and a dielectric material layer (22) forming an electric insulator and inserted between the electric circuit (26) and the heat drain (20). The stack (14) includes a composite material body (24) having a carbon-charged metal matrix. The carbon charge is between 20 and 60 volume percent. Said composite body (24) is inserted between an area of the electric circuit (26) and the electric insulator (22), said area being intended for supporting the electronic power component (18).

Abstract: Disclosed is the selecting of the optimum characteristics of a magnetic device producing a sinusoidal signal for determination of angular position in a rotary machine. The device includes a multi-polar magnetic ring which is mobile in rotation around an axis, and creates a variable magnetic field according to an angle of rotation. In close proximity to the magnetic ring, a magnetic sensor is placed in this magnetic field, and generates the sinusoidal signal. The air gap between the sensor and ring is constituted by spacing the sensor by a distance E from the magnetic ring on a radial plane. Optimum performance is achieved when a first ratio e/E of a thickness e of the multi-polar magnetic ring in a direction which is radial relative to the air gap E is between 0.4 and 2.3. A second ratio h/e of a height h of the ring, in a direction which is axial relative to the thickness e, is between 1.5 and 8.

Abstract: A battery terminal lug (1) is disclosed, the lug being equipped with a shunt (7) for measuring the battery current and other battery characteristics. The lug includes a support (8), such as for a printed circuit, of at least one electronic component. The lug is made up of a first part (2), which is configured to be secured to a terminal of the battery, and a second part, which is configured to be secured to the cable of the battery (which is ordinarily directly associated with the terminal of the battery). The two parts (2, 3) of the terminal lug are electrically insulated from one another and are provided with projecting portions (28, 38) to bear the shunt (7), and a casing (5, 6) to accommodate the shunt (7) and the support (8), wherein electrical insulation (4, 17) is positioned so as to intervene between the two parts (2, 3) of the terminal lug (1).

Abstract: An output shaft (14) of a starting device (1) is provided to equip a motor vehicle. This output shaft (14) comprises a mounting support (16), a driving element (17) on the mounting support (16) intended to transmit a rotation movement to a thermal engine, and a track (15) on the mounting support (16) intended to transmit a rotation movement to the mounting support (16), this track (15) being driven by a freewheel of a starter-head assembly of the starting device. The track (15) is attached and secured to the mounting support (16).

Abstract: A power storage module for a hybrid system. The module includes internal absorption elements for absorbing electrolytes, and gasses thereof, that may have separated from a storage cell within the module owing to overvoltages. The module may further include external indicator(s) for indicating that such separated electrolytes are contained within the module case. It is possible to protect a user of the power storage module who wants to open the case of this module, in the event that the power storage cell has released electrolyte in gaseous and/or liquid form into the interior of the case.

Abstract: Disclosed is a method and device for diagnosis of functioning faults caused by the angular position measurement sensors of the rotor of a polyphase rotary electrical machine comprising a stator, in particular of the alternator-starter type. The diagnosis is obtained by carrying out direct measurements of pairs of sine and cosine signals determined on the basis of linear combinations of the polyphase signals provided by these sensors. This measurement therefore does not make it necessary to know the exact value of the speed of the machine. The diagnosis of functioning faults caused by the angular position measurement sensors requires only the execution of elementary logic operations, i.e. the determination of the “true” or “false” logic states of two inequality equations.

Abstract: The method of controlling a polyphase rotating electric machine, the machine operating as a generator and being linked to an electrical network (1), is of the type of those consisting in short-circuiting at least one phase winding in the event of load shedding. A short-circuit command (SAND) is generated for the phase winding when a first measurement voltage V of a voltage B+ of the network exceeds a first predetermined threshold value V1 and when a phase current (I?) in the phase winding vanishes and changes direction. The first measurement voltage V may be obtained by filtering the voltage B+ of the network with a predetermined time constant TF.

Abstract: A method of controlling a supercapacitor energy storage unit (12), included in a motor vehicle micro-hybrid system, is disclosed. The storage unit is suitable for performing the functions of an alternator, starter and automatic stop-restart of the vehicle heat engine, regenerative braking and torque assistance. The energy storage unit (12) is a plurality of supercapacitor elementary cells connected in series (C1 to C10) and capable of delivering information (Vmax, Temp and DeltaV) on its internal status. The method includes various stages of: comparing a maximum elementary voltage (Vmax) with a first voltage threshold (Vmax1); comparing a temperature (Temp) with at least one temperature threshold (ST1=55° C., ST2=65° C. and ST3=70° C.); and, deciding on limitations of the availability of functions of the unit when the (Vmax) information reaches threshold (Vmax1) for a predetermined duration (T) and/or when the (Temp) information reaches the temperature threshold (ST1=55° C., ST2=65° C. and ST3=70° C.).

Abstract: A friction starter drive unit for a starter, comprising: a pinion including a hole for the passage of a drive shaft; a drive part including a hole for the passage of a drive shaft, said drive part being mounted such as to be rotationally fixed with the pinion; a drive element including a hole for the passage of a drive shaft of a starter, which element can move in translation along axis X of the hole in relation to the drive part between an uncoupled position and a coupled position; and a friction coupling means arranged to couple the drive element to the drive part when the drive element is in the coupled position. The starter drive unit comprises a return means that exerts a force on the drive element and a force on the drive part in the direction of the uncoupled position.

Abstract: A method comprises the transmission to a regulator (8) of the alternator of width-modulated pulses (PWM1) exhibiting a duty ratio representative of a setpoint value (Vref) continuously included between a first reference duty ratio (DC1) and a second reference duty ratio (DC2), and the detection of these pulses by the regulator so as to generate the setpoint value. The method also comprises the transmission to the regulator of other width-modulated pulses (PWM2) exhibiting a specific duty ratio (EXOF_R) which is less than the first reference duty ratio (DC1) and ties between a low duty ratio (DCL) and a high duty ratio (DCH), and the detection of these other pulses by the regulator, in a first step, and the generation of an opening signal (EXOF) for a circuit for excitation of the alternator, in a second step, following this latter detection.

Abstract: A motor vehicle regulator, including electronic regulation circuits, which can produce an excitation current in accordance with a difference between a set voltage and an output voltage measured at the terminals of an electric battery of the vehicle. The regulation circuits including a programmable signal processing interface for producing a signal, which is representative of the excitation current. The interface receives as input a plurality of signals which are representative of the excitation current. The interface including a device capable of selecting a signal which is representative, from amongst the plurality of representative signals, of the method for applying different forms of processing to the representative signal selected, and a second device for selection of processing to be applied to the representative signal. The representative signal, and the processing to be applied, being selected according to a program provided to the programmable signal interface.

Abstract: A method of controlling a supercapacitor energy storage unit (12), included in a motor vehicle micro-hybrid system, is disclosed. The storage unit is suitable for performing the functions of an alternator, starter and automatic stop-restart of the vehicle heat engine, regenerative braking and torque assistance. The energy storage unit (12) is a plurality of supercapacitor elementary cells connected in series (C1 to C10) and capable of delivering information (Vmax, Temp and DeltaV) on its internal status. The method includes various stages of: comparing a temperature (Temp) with at least one temperature threshold (ST1=55° C., ST2=65° C. and ST3=70° C.); and, deciding on limitations of the availability of functions of the unit when the (Temp) information reaches the temperature threshold (ST1=55° C., ST2=65° C. and ST3=70° C.).

Abstract: A system including at least one electric rotary machine and an integrated control circuit and an electronic control unit, the system being embarked in an automobile. The integrated control circuit of the system includes a RAM connected to the electronic control unit via a data communication link, and the electronic control unit includes a rewritable memory. The system further includes a configuration data permanent storage of the system in the rewritable memory as well as an upload of the configuration data into the RAM during a configuration phase of the system. The system herein enables the integrated control circuit of the electric rotary machine to be standardized by virtue of the fact that the configuration data are no longer written in a read-only memory but reside in a RAM of this circuit.

Abstract: The invention relates to a rotor assembly which is mounted such as to rotate around an axis of rotation (X-X?) and which comprises two magnet wheels with claws (10). The aforementioned magnet wheels are separated by an axial space and are disposed opposite one another. Moreover, each wheel (10) comprises an end shield (11) which is essentially perpendicular to the aforementioned axis (X-X?), and claws (12) extended axially from said end shield (11) towards the other wheel (10). The claws (12) of one wheel (10) are solidly connected to the end shield (11) by respective bases (121) which are separated from one another by peripheral spaces (13). The inventive assembly comprises at least one fan (30) which is positioned on an axial face of the end shield (11) of one of the wheels (10) opposite the other wheel (10), such that the fan (30) axially seals at least part of one of the peripheral spaces (13).

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 starter device (10) for a combustion engine (1), particularly of a motor vehicle. The device includes a rotary electrical machine (11) comprising a drive member (12) and a tensioner. A belt (13) collaborates with the drive member of the rotary electrical machine and with the combustion engine in order that the latter can be started using the belt rotationally driven by the electrical machine in a first direction (A). A tensioner (15) presses against a length (16) of the belt that runs between the electrical machine and the combustion engine. As the rotary electrical machine rotates in a second direction (B) the opposite of the first, it is possible for the tensioner to be brought from a stopped position into a position for beginning to start the combustion engine. The movement from the stopped position to the position for beginning to start being accompanied by a lengthening of said length of belt and/or by an increase in the tension in this length of belt.

Abstract: A direct-current rotating electrical machine, in particular for a motor vehicle starter. The machine includes a stator comprising a magnetized structure with permanent magnetization, extending along a circumference of the stator, a rotor, and a group of brushes arranged to allow the electrical supply of the rotor by switching the electrical current in sections of the rotor. The magnetized structure of the machine includes a plurality of main magnets and a plurality of auxiliary magnets, each arranged between two main magnets. The auxiliary magnets have a smaller angular extent and/or radial thickness than the main magnets. The magnetization vector in at least one of the main and auxiliary magnets varies continuously or in steps, at least locally taking a direction other than radial and orthoradial directions.

Abstract: A rotor with poles in the form of claws, of a rotary electrical machine. This rotor comprises a plurality of interpolar magnetic assemblies. On a radial cross-sectional plane, a first total magnet surface of a section of the magnetic assembly is smaller than a second surface defined by the product of the radial height of a face (h) of the magnetic assembly (40) which faces towards the polar claw (44a), and the circumferential distance between the polar claws (44a, 44b) in the interpolar gap. The magnet has at least one recess which extends in an axial direction.