Abstract: The instrument panel for a vehicle, comprises at least one liquid crystal display, which is characterized in that the display is of the positive transparent type, and in that its rear face, with respect to the position of the driver, is illuminated by daylight. In particular, it is mounted on the dashboard projecting therefrom, the rear face being illuminated by the light from the windshield of the vehicle. The instrument panel also comprises a device of illumination for use by night.

Abstract: A power supply method an apparatus for powering electrical equipment, the electrical equipment operated by using current peaks. The electrical equipment may be connected via at least one capacitive element to a voltage converter which may be connected to a storage battery. The voltage converter may be current-regulated from a reference current. The reference current may correspond to an average current between two peaks (generally corresponding to one cycle of operation). The reference current may be calculated in a predictive manner and the reference current may include a correction factor. The voltage output from the voltage converter may be maintained between an upper limit and a lower limit.

Abstract: A power connector for a printed circuit, the connector comprising: an insulating socket (14) provided with a bearing face (15) bearing on the printed circuit, and with a housing (16) associated with an opening (17) disposed laterally; a pin (18, 19) passing through the bearing face perpendicularly thereto and having a connection portion (22, 27) which extends projecting into the housing and presents two faces (23, 28) parallel to a plane perpendicular to the opening; an insulating support (31) arranged to be inserted at least in part in the housing through the opening; and at least one plug (34) secured to the insulating support and provided with two flexible tabs (35) for pressing against the faces of the connection portion of the pin.

Abstract: A method of regulating an electric motor, regulation being implemented with a loop of gain less than unity as a function of a divergence between a setpoint signal for an operating parameter of the motor and a measured value of the same operating parameter of the electric motor, the divergence being taken into account only if said divergence is greater than a predetermined threshold whenever the measured value is greater than the setpoint signal.

Abstract: A method of controlling a machine including at least one inductive coil (n), the inductive coil being connected to a primary electricity power supply network (RP) via a control circuit comprising, between a connection point (A) of the coil (n) in question and terminals of the primary network (RP), at least one half-bridge of a variator adapted to controlling said machine, the half-bridge being formed by first and second controlled switches (T+n, T?n). In the method, connection point (A) of said coil (n) is connected to at least one third controlled switch (Tn-x), the third switch (Tn-x) constituting a bypass switch connected to at least one secondary electricity power supply network (Rx), and the electrical state of the third switch (Tn-x) is associated with that of the half-bridge.

Abstract: The short range radio receiver for motor vehicle data comprises antenna circuits (1–4) connected to a unit (10–15) for processing a carrier in a plurality of specific frequency bands which is modulated by a data signal, the unit (10–15) comprising frequency-transposing circuits (11, 23–28) connected to demodulation circuits (13) supplying the demodulated data, and frequency discrimination circuits (21, 22) are provided, connected to the antenna circuits (1–4), to determine respective reception levels within the bands in order to compare them with each other and to control the frequency transposing circuits (11, 23–28) depending on the result of the comparison.

Abstract: The invention provides a filter circuit comprising inductors (6, 15) and capacitors (11) interconnected to form filter stages, the capacitors (11) being distributed over at least two printed circuit cards (7, 8) disposed facing each other and spaced apart by a gap (H), at least one inductor (15) extending across the gap (H) between the cards and connected to both cards (7, 8). The invention also provides a power supply device equipped with such a filter circuit.

Abstract: The invention provides an electromagnetic actuator comprising at least two coils (5, 6) associated with ferromagnetic cores (11) and disposed facing each other, and a moving element (1) extending between the coils (5, 6) and associated with an actuator rod (2), the coils (5, 6) comprising conductors (7) with ends (16) extending transversely to an axis (100) of the coils (5, 6) and fixed directly to pins (21) carried by a connection plate (18) fixed on one side (7) of the coils (5, 6) and including a connection circuit (24) providing connections with a connector (25) also carried by the connection plate (18).

Abstract: In order to detect the electrical position of the rotor of an electrical machine (4) coupled (6) to an internal combustion engine (7) provided with a sensor (8) delivering a first angular position signal for speeds of rotation greater than a minimum measurement speed (VM), a second signal is generated on the basis of the characteristics of the electrical machine, the second signal being representative of an estimated angular position of the rotor for speeds of rotation that are less than an estimation speed (VA); depending on the estimated speed of rotation, means for controlling the machine are supplied either with the estimated angular position value when the estimated speed is below a first threshold (S1), or with the signal from the sensor when the estimated speed is greater than a second threshold (S2), and a changeover is performed from one signal to the other in a range lying between the first threshold and the second threshold.

Abstract: In a seatback frame for a vehicle seat having a seatback and a seat cushion and equipped with a seat belt of a three-point type, a pipe frame formed along an external shape of the seatback and a vertically extending tower frame located in the seatback at the same side as a belt-through member of the seat belt of the three-point type and fixedly connected to the pipe frame are provided. The tower frame includes an outer side bracket, an inner side bracket, both of which are formed of vertically extending, elongated metal sheets each formed in a substantially C-shaped cross section and both of which are coupled to one another in abutting engagement with one another to form an internal space, and an intermediate brace member incorporated in the internal space to provide a reinforcement rib structure.

Abstract: A ferromagnetic actuator having, in a housing, a ferromagnetic circuit defining an axial travel interval for an armature (22) of ferromagnetic material for axially driving a rod between two extreme positions in which the armature bears against poles of the ferromagnetic circuit, resilient return means provided to hold the valve at rest in a middle position between the extreme positions, and at least one coil carried by the circuit and enabling the armature to be brought in alternation into both positions. The rod carries a radially-magnetized bar of length not less than the travel distance of the armature, and the housing carries at least one magnetic flux sensor placed in a zone having low exposure to the field created by the coil(s).

Abstract: In a seatback frame for a vehicle seat having a seatback and a seat cushion and equipped with a seat belt of a three-point type, a pipe frame formed along an external shape of the seatback and a vertically extending tower frame located in the seatback at the same side as a belt-through member of the seat belt of the three-point type and fixedly connected to the pipe frame are provided. The tower frame includes an outer side bracket, an inner side bracket, both of which are formed of vertically extending, elongated metal sheets each formed in a substantially C-shaped cross section and both of which are coupled to one another in abutting engagement with one another to form an internal space, and an intermediate brace member incorporated in the internal space to provide a reinforcement rib structure.

Abstract: A multilayer circuit assembly includes a power circuit and a numerical data circuit. The power circuit includes a power layer and power components. The numerical data circuit includes a numerical data layer and numerical data components. Power components and numerical data components are incorporated on an external surface of the numerical data layer. Preferably, all of the power components are incorporated on an external face of a numerical data layer. The numerical data layer may be a different thickness than the power circuit layer, and is generally thinner. The assembly may also include an insulating substrate disposed between the power circuit layer and the numerical data layer. The numerical data layer and the power circuit layer may be etched on opposite sides of the insulating substrate. The assembly can also include additional numerical and/or power circuit layers. The power components are typically connected to the power layer using blind vias.

Abstract: The apparatus for controlling valves that move linearly along respective axes comprises a number of actuators that is equal to the number of valves. Each actuator has an armature (22) of ferromagnetic material fixed to a valve push rod (24) and movable in a housing (16) of the actuator by a coil mounted on a ferromagnetic circuit. The ferromagnetic circuits of the two actuators allocated to two valves of the same type for a single cylinder are contained in the same housing.

Abstract: A vehicle seat back assembly is provided with: a seat back frame including, at both sides thereof, at least side frames; a head rest support member supported with upper distal ends of the side frames to be rotatable; a pressure receiving member supported with the head rest support member and remaining in a position to receive an impact load caused by a rear-end collision of a vehicle; a head rest holder supported with the head rest support member; and a head rest supported with the head rest holder to be moveable in upper and lower directions. The head rest support member has an upper wall segment, a rear facing wall segment bent from the upper wall segment and extending downward, and a support section supporting the head rest holder at the upper wall segment and a portion extending from the rear facing wall segment.

Abstract: The tire pressure sensor housing for a motor vehicle, provided to be mounted on a wheel rim comprises elastically deformable support wings of variable height and a device for positional fixing and locking having snap-on tongues.

Abstract: An electricity distribution network for a motor vehicle, the network having at least two pieces of equipment connected to a storage battery, at least one of the pieces of equipment operates in a pulse mode likely to create oscillations in the network at a resonant frequency thereof, the network includes at least one resistive element and capacitor that are associated in series and that are of resistance and capacitance determined so that the resistance of the resistive element is equal to a damping resistance for the network.

Abstract: The electromagnetic valve actuator has an armature (22) of ferromagnetic material fixed to the stem of the valve, springs are provided to hold the valve at rest in a middle position between a fully open position and a closed position, and a single coil (38) is mounted on a ferromagnetic circuit. In combination with the armature, the magnetic circuit presents two stable magnetic flux paths both of which correspond to an airgap of small size.

Abstract: A vehicle rear seat is provided with a seat cushion, a seat back connected to the seat cushion and foldable from an upright position to a forwardly folded position over the seat cushion, and a retainer board mounted to a rear surface of the seat back for tilting movement. The seat back has a body portion and a decorative cover placed over the body portion. The decorative cover has an upper decorative cover component and a rear decorative cover component. The retainer board includes a core material, a decorative cover composed of one cover element and the other cover element opposing to the one cover element to enclose the core material, and a mount segment extending from the retainer board and connected to the rear decorative cover component of the seat back. The mount segment serves as a hinge to enable the retainer board to be placed in an inoperative rest position and in an operative unfold position.