Abstract: The present invention relates to an electric switch with rubbing contact (3) comprising on the one hand at least one fixed contact (9) and on the other hand at least one moving rubbing contact (3) that can move along a predefined trajectory and exhibiting a contact surface (10) intended to rub on said at least one fixed contact (9), characterized in that at least said contact surface (10) is treated by ion bombardment by virtue of an ion beam, and in that the fixed (9) and moving (3) contacts are bare.

Abstract: Device (1) for measuring a liquid level, comprising: -a body (2) extending along a longitudinal axis (X) and having at least one open portion (5) in which at least one aperture (A) is formed in the wall of the body (2), -a loop (10) of electric wire positioned at least in the open portion (5) so that it can be in contact with the liquid and run substantially parallel to the longitudinal axis (X) of the body (2), -an electric power supply circuit (15, 16) for powering the loop of wire arranged in the body, the circuit comprising two end fittings (16) positioned in the open portion (5), each end fitting (16) being connected to one of the open ends (11) of the loop (10), the end fittings (16) being arranged in an offset manner along the longitudinal axis (X) of the body (2).

Abstract: The invention relates to a motor vehicle gearbox position detector comprising a sensor (3) designed to cooperate with a moving target (5) connected to a gearbox ratio actuation element so as to provide at least one analog signal representative of the position of the neutral point of the gearbox, characterized in that it additionally comprises a unit for processing the signal (9) comprising an analog-to-digital converter designed to convert the analog signal into a digital output signal (17) so as to provide periodic predefined information corresponding to the position of the neutral point only when, on the one hand, the target (5) is in the neutral point position and, on the other hand, when the sensor (1) is in the normal operating state.

Abstract: The invention relates to a device for measuring temperature in a gas duct. The device (1?) comprises a body (3?) for supporting a temperature sensor (4?), the sensor comprising a head (7?) and at least two wires (8?) connecting the head (7?) to means for acquiring a temperature-measurement signal. The supporting body (3?) is arranged so as to be inserted into an orifice of a wall of the duct in order to immerse the head (7?) of the sensor (4?) in the gases of the duct. The supporting body (3?) comprises a bottom collar (12?), having a top end surface (17a?), in which are arranged at least two channels (9?) for guiding and holding the wires (8?), arranged to allow the mounting of the sensor (4?) in the supporting body (3?) and the holding of the wires (8?) in order to hold the head (7?) of the sensor (4?) at a distance from the top end surface (17a?) of the collar (12?).

Abstract: A motor vehicle gearbox position sensor includes a magnet and a probe for measuring a magnetic field at a sensitive end. The magnet and the probe may be placed facing a moving target connected to an actuating element, which is used to select the gear ratios of a gearbox in order to determine the position of the target in space and, from this, deduce the position. The position sensor also includes at least one ferromagnetic element positioned at the periphery of the sensitive end to trap metallic contaminants. A motor vehicle gearbox includes an actuating element that selects gear ratios, a moving target connected to the actuating element, and a position sensor.

Abstract: The invention relates to a switching device for motor vehicle column top comprising a microcontroller (1). The latter comprises at least two distinct functional switching blocks (3, 5), each block being linked to two signal inputs (e1, e2, e3, e4) and two signal outputs (a, b, c) of the microcontroller (1), a signal output (a, b, c) or a signal input (e1, e2, e3, e4) of which is linked solely to a single functional block (3, 5) and comprising four switches (7, 9, 11, 13, 15, 17, 19, 21), each switch (7, 9, 11, 13, 15, 17, 19, 21) being linked to a signal input/output pair of the microcontroller (1) distinct from that of the other three of the same block (3, 5).

Abstract: A contactor carriage fitted so as to move translationally in an electrical switch of a motor vehicle, in a unit providing controls under the steering wheel, in order to establish according to a user command, an electrical contact for one or more predefined positions of the path of the carriage is disclosed. The carriage has at least one electrical contacting emplacement, a first housing for accommodating a high-current contactor element and a second housing for accommodating a low-current contactor element. An electrical contact is established at said emplacement either by placing a high-current contactor element in the associated housing or by placing a low-current contactor element in said housing.

Abstract: The invention relates to a temperature sensor comprising: a temperature-sensitive element (3); and a peripheral casing (7) accommodating the temperature-sensitive element (3) and having a closed end (9), the peripheral casing (7) being able to be inserted into a corresponding cavity (11), characterized in that the closed end (9) of the peripheral casing (7) has a peripheral portion (21) revealing, butted against the closed end, a flexible assembly stop (23) after said peripheral portion (21), said stop (23) being able to deform towards the peripheral portion (21) by shape cooperation with the bottom (15) of the corresponding cavity (11). The subject of the invention is also a process for manufacturing a temperature sensor as described above and a method of assembling said sensor.

Abstract: The invention relates to a motor-vehicle temperature sensor comprising a stop (13) designed to bear against a corresponding bearing surface delimiting a medium, the temperature of which has to be measured, and a means (15) for clamping the stop (13) against the bearing surface. According to the invention the stop (13) has a peripheral thickness (e) equal to or less than 1.2 mm and the clamping means (15) is made of a material having expansion properties common with the material of the bearing surface and is designed to compensate for the differences in expansion between the stop (13) and the bearing surface.

Abstract: The invention relates to a switching assembly for the top portion of an automobile steering column that comprises: a base substrate (5) having a plurality of locations (E1, E2, E3, E4) connectable to switching module (7) connectors, each switching module (7) having at least one switch (15) capable of going into switching mode on the basis of the control position used by a user; a microcontroller (17) for managing the switching assembly, characterized in that: each location (E1, E2, E3, E4) includes at least two digital inputs connected to identical digital outputs (s1, s2) of said microcontroller (17) and at least two digital outputs connected to identical digital inputs (e1, e2, e3, e4) of said microcontroller (17); and said microcontroller (17) is configured to be able to deduce, from a sequence of digital signals sent by said microcontroller (17) to each location and digital signals received by said microcontroller (17) from each location (E1, E2, E3, E4) and corresponding to electric signals having transi

Abstract: The invention relates to a motor vehicle gearbox position sensor comprising a magnet (5) and a probe (7) able to measure a magnetic field at a sensitive end (9) able to be placed facing a moving target (11) connected to an actuating element (3) used to select the gear ratios of a gearbox, in order to determine the position of the target (11) in space and from this deduce the position, characterized in that it further comprises at least one ferromagnetic element (25) positioned at the periphery of the sensitive end (9) to trap metallic contaminants. The invention also relates to a motor vehicle gearbox comprising an actuating element (3) for selecting the ratios and a moving target (11) connected to said actuating element (3), characterized in that it comprises a position sensor (1) as described hereinabove.

Abstract: The invention relates to a motor vehicle gearbox position detector comprising a sensor (3) designed to cooperate with a moving target (5) connected to a gearbox ratio actuation element so as to provide at least one analogue signal representative of the position of the neutral point of the gearbox, characterized in that it additionally comprises a unit for processing the signal (9) comprising an analogue-to-digital converter designed to convert the analogue signal into a digital output signal (17) so as to provide periodic predefined information corresponding to the position of the neutral point only when, on the one hand, the target (5) is in the neutral point position and, on the other hand, when the sensor (1) is in the normal operating state.

Abstract: The invention relates to a contactor carriage intended to be fitted so as to move translationally in an electrical switch (1) of a motor vehicle, preferably in a unit providing controls under the steering wheel, in order to establish according to a user command, an electrical contact for one or more predefined positions of the path of said carriage (3), comprising at least one electrical contacting emplacement (13), characterized in that it comprises a first housing (15) intended to accommodate a high-current contactor element (12) and a second housing (17) intended to accommodate a low-current contactor element (11), in such a way that an electrical contact is able to be established at said emplacement (13) either by placing a high-current contactor clement (12) in the associated housing (15, 17) or by placing a low-current contactor element (11) in said housing.

Abstract: The invention concerns a control assembly, in particular for motor vehicle steering column top portion (1), comprising several switching modules (7; 9; 13; 15) and a microcontroller (19) mounted on a motherboard (17) for interpreting a switching state based on the identifier of the module to deliver an appropriate control signal, the motherboard (17) having several connecting locations (E1, E2, E3, E4), and each module (7; 9; 13; 15) having an identical number N of predetermined tracks (L1, L2, L3, L4, L5, ID1, ID2; CS1; CS2; CS3; CS4) to be connected to tracks associated with the motherboard (17). The corresponding exit tracks (L1, L2, L3, L4, L5, ID1, ID2) of each switching module (7; 9; 13; 15) are interconnected and connected together on the same input of the microcontroller (19), and the control assembly comprises for each location (E1, E2, E3, E4) means for activating reading of a switching state of a module connected at said location, said activating means being monitored by the microcontroller (19).

Abstract: The invention concerns a method for detecting gas bubbles in a liquid adapted to a device comprising a light source, a light detector and a data controlling and processing unit connected to a client system comprising the following steps: emitting light from the light source, acquiring successive measurements of the light intensity sensed by the light detector and calculating a variation between two successive measurements of said light intensity. In accordance with a first embodiment of the invention, the method further comprises a step which consists in comparing the variation between two successive measurements of light intensity to a threshold S. Advantageously, a warning counter is incremented by a value A when variation between two successive measurements is higher than the threshold S and decremented by a value B in the opposite case. A proportion of bubbles higher than a maximum authorized rate is detected when said warning counter exceeds a warning value C.

Abstract: The invention concerns a method for detecting gas bubbles in a liquid adapted to a device comprising a light source, a light detector and a data controlling and processing unit connected to a client system comprising the following steps: emitting light from the light source, acquiring successive measurements of the light intensity sensed by the light detector and calculating a variation between two successive measurements of said light intensity. In accordance with a first embodiment of the invention, the method further comprises a step which consists in comparing the variation between two successive measurements of light intensity to a threshold S. Advantageously, a warning counter is incremented by a value A when variation between two successive measurements is higher than the threshold S and decremented by a value B in the opposite case. A proportion of bubbles higher than a maximum authorized rate is detected when said warning counter exceeds a warning value C.

Abstract: The invention concerns a method for detecting gas bubbles in a liquid adapted to a device comprising a light source, a light detector and a data controlling and processing unit connected to a client system comprising the following steps: emitting light from the light source, acquiring successive measurements of the light intensity sensed by the light detector and calculating a variation between two successive measurements of said light intensity. In accordance with a first embodiment of the invention, the method further comprises a step which consists in comparing the variation between two successive measurements of light intensity to a threshold S. Advantageously, a warning counter is incremented by a value A when variation between two successive measurements is higher than the threshold S and decremented by a value B in the opposite case. A proportion of bubbles higher than a maximum authorized rate is detected when said warning counter exceeds a warning value C.

Abstract: The present invention relates to an angle sensor of the capacitive type, in particular for a steering column of a motor vehicle having a stator and rotor element, comprising at least one sensor element (200) of the stator and a transmitter suitable for applying electrical signals to a transmitter one of the elements, and a receiver suitable for detecting the signals received on a receiver one of the elements, which signals depend on the angular position of the rotor element (300) relative to the sensor element (200) of the stator, the sensor being characterized by the fact that the sensor element (200) of the stator is placed in a box (100) organized to be engaged sideways onto the assembly (10, 50) in which the rotor element (300) is received.

Abstract: An electrical switch, in particular for controlling the lighting and signalling means of a motor vehicle, the switch comprising a housing (10) which houses a switch (200), and a lever (100) which includes a controller (120, 140, 160) that are mounted to be displaced relative to the housing (10) in at least two pivoting motions which are generally mutually crossed (I, II) and in rotary motion (III) about the axis (162) of the lever (100) in order to control respective ones of at least three basic electrical functions, the switch being characterized by the fact that the switch (200) comprise a single slide (220) which is mounted to be displaced in a plane, and a connector (166, 222; 124, 224) ensuring functional connection between the controller (120, 140, 160) of the lever (100) and the slide (220), so that the slide (220) is subjected to a specific kind of displacement for each of the three kinds of displacement of the lever (100), and is capable of ensuring respective electrical functions without disturbing