Abstract: A suspension stop for a motor vehicle wheel assembly comprising a fixed member adapted to be fixed to the chassis (2) of the vehicle and a rotating member adapted to be fixed to the suspension spring (4) so as to be rotationally moved under the effect of the forces exerted by the spring. The stop includes a device for measuring the vertical forces applied to the vehicle wheel. The device includes a pulse-generating coder (11) fixed to one of the members, a sensor (12) fixed to the other member which is able to detect these pulses so as to determine the angular position of the rotating member with respect to the fixed member, and a calculation device able, from this position, to calculate the corresponding vertical force applied. A method of measuring the vertical forces applied to a wheel associated with the chassis (2) of a vehicle by such a stop is also provided.

Abstract: A method of calculating forces applied at an interface between a revolving element and a support on which the element revolves using a set of fixed sensors capable of delivering three independent signals representative of forces being applied on a fixed race of a bearing. The method is an iterative processing procedure and a calibration procedure, which is carried out before a first iteration of the processing procedure. The invention also applies such a method to the case of a tyre running on a road.

Abstract: A method is disclosed for forming an annular collar (11) that is essentially radial on the hollow annular end portion (12) of a port (7). This method has the following steps: A. radially deforming the end portion (12) by means of a first tool (16), in which the axis (18) of the tool (16) and the axis (5) of the end portion (12) form a non-zero angle ? between them to obtain an essentially radial collar preform (17); and B. deforming this preform (17) by means of a second tool (23) to obtain a final shaping of the collar (11) by pressing. This invention also relates to a method of retaining a bearing (1) on a shaft (7), and to the assembly that comprises this shaft (7) and bearing (1).

Abstract: A device for controlling an electronically switched motor which includes a coder (2) having a main multipole track (2a) and a so-called “revolution pip” multipole track (2b); a fixed sensor (3) delivering two digital position signals (A, B) and one revolution pip signal (C); a circuit for switching the currents in the phase windings of the motor which comprises 2*P*N switches; a control circuit for the switching circuit which is able to supply the switching signals for the switches which correspond to the state of the logic determined by the revolution pip signal (C) or by the position signals (A, B). The control device can be combined with a bearing and/or a motor equipped with such a device.

Abstract: A device for controlling an electronically switched motor comprising a coder (2) provided with a main multipole track (2a) and a so-called “revolution pip” multipole track (2b), the said tracks each comprising N identical sectors (2c) angularly distributed respectively over the entire circumference of the said tracks, the sectors (2c) of the revolution pip track (2b) each comprising M angularly distributed singularities (2b1), the M singularities (2b1) being distributed angularly so that the revolution pip signal (C) is arranged so as, in combination with the signals A and B, to define binary sequences of angular length less than that of the sectors (2c) and which represent the absolute angular position of the coder (2) on a sector (2c). The invention also relates to a bearing and a motor equipped with such a device, as well as a method for controlling such a motor.

Abstract: The invention concerns a suspension stop for a motor vehicle wheel of the type comprising a fixed member intended to be fixed to the chassis (2) of the vehicle and a rotating member intended to be fixed to the suspension spring (4) so as to be rotationally moved under the effect of the forces exerted by the said spring, the said stop comprising a device for measuring the vertical forces applied to the vehicle wheel, the said device comprising a pulse-generating coder (11) which is fixed to one of the members, a sensor (12) fixed to the other member which is able to detect these pulses so as to determine the angular position of the rotating member with respect to the fixed member, and a calculation means able, from this position, to calculate the corresponding vertical force applied.

Abstract: The invention concerns a suspension stop for a motor vehicle wheel, comprising a device for measuring the forces applied to the vehicle wheel, the said device comprising at least one deformation sensor (12) which is associated with a fixed member (1, 6) of the said stop so as to measure the deformations of the said member which are caused by the said forces applied, and a calculation means able, from these deformations, to calculate the corresponding forces applied.

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: The invention relates to a device for controlling an electronically switched motor comprising a coder (2) provided with a main multipole track (2a) and a so-called “revolution pip” multipole track (2b), the said tracks each comprising N identical sectors (2c) angularly distributed respectively over the entire circumference of the said tracks, the sectors (2c) of the revolution pip track (2b) each comprising M angularly distributed singularities (2b1), the M singularities (2b1) being distributed angularly so that the revolution pip signal (C) is arranged so as, in combination with the signals A and B, to define binary sequences of angular length less than that of the sectors (2c) and which represent the absolute angular position of the coder (2) on a sector (2c).

Abstract: A device for controlling an electronically switched motor which includes a coder (2) having a main multipole track (2a) and a so-called “revolution pip” multipole track (2b); a fixed sensor (3) delivering two digital position signals (A, B) and one revolution pip signal (C); a circuit for switching the currents in the phase windings of the motor which comprises 2*P*N switches; a control circuit for the switching circuit which is able to supply the switching signals for the switches which correspond to the state of the logic determined by the revolution pip signal (C) or by the position signals (A, B). The control device can be combined with a bearing and/or a motor equipped with such a device.

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: a circular multipole encoder (4) comprising a main multipole track (4a) and a multipole commutation track (4b) comprising 2*P*N singularities (4b1-4b6) equidistributed angularly; a fixed sensor (6) capable of delivering square digital signals A, B in quadrature and a digital signal C in the form of 2*P*N pulses (TP1-TP6) per revolution of the encoder; a commutation circuit (7) having 2*P*N switches (T1-T6); a control circuit (8) for the commutation circuit (7) which: from the signal c supplies commutation signals for the switches (T1-T6); and from the signals A, B and according to a first current set point (I*) defines a second current set point (Iref) which controls the current (Im) supplying the phase windings of the motor (1).

Abstract: The invention relates to a method of calculating the forces (Fxw, Fyw, Fzw) applied at an interface (Q) between a revolving element (1) and a support (2) on which said element revolves, said method using a set of fixed sensors capable of delivering three independent signals (S1, S2, S3) representative of the forces being applied on the fixed race of the bearing, said method comprising an iterative processing procedure and a calibration procedure which is carried out before the first iteration of the processing procedure.

Abstract: The object of the invention is an assembly comprising a bearing (1) and a mechanical interface (5) associated, by means of association means (7), with the fixed raceway (2) of the bearing (1), this interface (5) being intended to be interposed between the fixed raceway (2) of the bearing (1) and the fixed structure, the said interface (5) comprising: first means (8) of fixing to the fixed structure; second means (9) of fixing a device (10) intended to apply a force to the rotating member (6); and at least one elastic deformation zone (29-33) able to be deformed under the action of forces exerted on the said assembly, at least one sensor (38) able to measure the said forces being functionally associated with the said elastic deformation zone (29-33).

Abstract: A bearing of the type comprising a fixed raceway (2) intended to be associated with a fixed structure, a rotating raceway (3) intended to be associated with a rotating member (6, 8, 9) and rolling bodies disposed between them, in which the fixed raceway (2) comprises first means (5) of fixing the said bearing (1) to the fixed structure. The fixed raceway (2) comprises at least one elastic deformation zone able to be deformed under the action of forces exerted on the said bearing (1). At least one sensor (26) able to measure the said forces is functionally associated with the said elastic deformation zone.

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: 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 concerns a vehicle steering column (2) comprising a manual control member (3) for applying a torque on the column (2) drive shaft (8), the column being equipped with a device for measuring the torque applied to the drive shaft (8), characterised in that the torque measuring device includes a sensing element without requiring a torsion bar to be located along the drive shaft (8) axis and thus producing a break therein.

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.