Abstract: The invention relates to an electric power-assisted steering system making it possible to apply an assist torque for the angular displacement of the wheels of a vehicle, said torque being applied by an electronically commutated motor (2) comprising P phases and N pairs of poles, said system also comprising a device for controlling the motor (2) comprising a circular multipole encoder (17) comprising a main multipole track (17a) and a multipole commutation track (17b) comprising magnetic singularities (17b1-17b6) equidistributed angularly, a fixed sensor (19) capable of delivering square digital signals A, B in quadrature, and a signal C in the form of 2*P*N pulses per revolution of the rotor (3), a circuit for commutating (20) the currents in the phase windings of the motor (2) and a control circuit (21) for the commutation circuit (20).

Abstract: The invention relates to a device for controlling an electronically commutated motor (1) comprising P phases and N pairs of poles (5), said device comprising:

Abstract: The invention relates to an electronically commutated motor (1) comprising P phases and N pairs of poles, in which a circular multipole encoder (12) is associated with the rotating ring (6a) of an anti-friction bearing (6), said encoder (12) comprising a main multipole track (12a) and a multipole commutation track (12b) comprising 2*P*N singularities (12b1-12b6) equidistributed angularly and a control device comprising a fixed sensor (15) capable of delivering square digital signals A, B in quadrature and a digital signal C in the form of 2*P*N pulses per revolution of the encoder (12), a circuit for commutating (20) the currents in the phase windings of the motor (1) and a control circuit (21) for the commutation circuit (20).

Abstract: Device for the analogue measurement of a torsion torque, steering column and module comprising it.

Abstract: The invention relates to a vehicle steering column having a manual control apparatus for applying a torque to the transmission shaft of the column, said column being provided with means of measuring the torque applied to said transmission shaft, the means of measuring the applied torque comprising a means generating magnetic pulses and a device for detecting these pulses, in which the detection device comprises a plurality of aligned sensitive elements.

Abstract: The invention relates to a vehicle steering column having a manual control apparatus for applying a torque to the transmission shaft of the column, said column being provided with means of measuring the torque applied to said transmission shaft, the means of measuring the applied torque comprising a means generating magnetic pulses and a device for detecting these pulses, in which the detection device comprises a plurality of aligned sensitive elements.

Abstract: A test body is deformable with torsion upon application of torque to a turning shaft. First and second bearings each have a fixed collar, a turning collar, and rolling bodies arranged between them, the turning collar of the first bearing being connected with the test body near a first end of the test body, the turning collar of the second bearing being connected with the test body near a second end of the test body. The bearings are each equipped with a digital device for determining the angular position of the turning collar in relation to the fixed collar, with the digital devices including an annular device for generating magnetic pulses, mounted for turning jointly with the turning collar, and a fixed magnetic sensor for detecting the magnetic pulses and for delivering digital signals.

Abstract: A fixed magnetic sensor (16) is used to determine absolute angular position of a turning component (3, 4). A detection device (27) detects an angular position of a multipole magnetic ring (11) near a reference angular position. A resetting device (28) resets the angular position of the multipole magnetic ring (11) detected by detection device (27). The resetting device (28) is capable of assigning a value called “offset” to the value of the absolute angular position of the multipole magnetic ring (11). A determination device (29) determines the absolute angular position of the multipole magnetic ring (11) on all of the turns made by a turning component (3, 4) ascertained from the offset value and variations in the angular position.

Abstract: A method for determining position and/or direction of a target, where the target has a series of magnetic poles with a magnetic pole spacing d.