Abstract: The device comprises means for measuring the pressure of the gas contained in a tire of a vehicle, means for collecting pressure measurement data and means for calculating the change in pressure between two instants of measurement data collection. The device further includes clocking means for clocking the time of the measurement data collection and for calculating the change in pressure between clocked instants of collection. The device also makes it possible for the pressure measurement to be temperature-compensated.

Abstract: A tire pressure monitoring system for the wheels of a motor vehicle determines the position of each wheel.

Abstract: The device comprises means for measuring the pressure of the gas contained in a tire of a vehicle, means for collecting pressure measurement data and means for calculating the change in pressure between two instants of measurement data collection. The device further includes clocking means for clocking the time of the measurement data collection and for calculating the change in pressure between clocked instants of collection. The device also makes it possible for the pressure measurement to be temperature-compensated.

Abstract: The invention relates to an electromagnetic actuator comprising an actuator member (6) connected to an armature (8) which is movable under drive from a drive member comprising at least one coil (1) for generating magnetic flux in a core (2) having a face facing a face of the armature (8), at least one of the facing faces including at least one set-back portion (10), the armature (8) and the core (2) being arranged, in a first zone (12) of the armature (8) and of the core (2) including the set-back portion, to define a first magnetic path which is interrupted by an air gap that is not less than the setback of the set-back portion (10) when the armature (8) bears against the core (2), and in a second zone (13) of the armature (8) and of the core (2) excluding the set-back portion, to define a second magnetic path which is interrupted solely by a residual air gap when the armature (8) bears against the core (2), the total area of the set-back portion being no greater than an area that would bring the magnetic fl

Abstract: Tyre pressure monitoring system for the wheels (10) of a motor vehicle (1), comprising: a control unit (17), a pressure sensor (12) mounted on each wheel associated to a transmitter (13) by which it transmits a pressure signal to the control unit (17) containing, at least, the sensor's (12) identification (I) data, and means (11, 15) for determining the distance travelled by each wheel, characterised in that it further comprises: transmission control means (18, 19; 18?, 19?) adapted to control the transmission of the transmitters (13) when their associated wheel reaches a predetermined orientation (Oto), means (173,144) for timing the transmissions, a module (172) for calculating the distance travelled by each wheel between two transmissions, and a positioning module (178) for comparing the distances determined by said means (11, 15) for determining the distance travelled by each wheel and the distances determined by said calculation module (172).

Abstract: The invention relates to an electromagnetic actuator comprising an actuator member (6) connected to an armature (8) which is movable under drive from a drive member comprising at least one coil (1) for generating magnetic flux in a core (2) having a face facing a face of the armature (8), at least one of the facing faces including at least one set-back portion (10), the armature (8) and the core (2) being arranged, in a first zone (12) of the armature (8) and of the core (2) including the set-back portion, to define a first magnetic path which is interrupted by an air gap that is not less than the setback of the set-back portion (10) when the armature (8) bears against the core (2), and in a second zone (13) of the armature (8) and of the core (2) excluding the set-back portion, to define a second magnetic path which is interrupted solely by a residual air gap when the armature (8) bears against the core (2), the total area of the set-back portion being no greater than an area that would bring the magnetic fl