Abstract: The invention relates to a gear motor (1) for a motor vehicle wiper system including an electric motor (2) including a rotor (20) and a rotation shaft (22) fixed to the rotor, a reduction gear mechanism (3) including a worm/worm wheel system, a device for generating an axial load configured to offset axial play of the rotation shaft (22), including a retaining wedge (6) mounted in a sliding manner in a radial direction of said rotation shaft (22), said retaining wedge (6) exerting an axial load on the outer race of a ball bearing (5) configured to guide the rotation shaft. According to the invention, said retaining wedge (6) is arranged in an intermediate position between the seat (40) of the bearing support (4) and the worm (30) directly adjacent to the worm wheel (31), said axial load (Fa) exerted by the retaining wedge (6) on the outer race (51) of the ball bearing (5) being in the direction away from the worm (30).

Abstract: The present invention relates to a stator for an electric motor, comprising a stator body comprising a plurality of teeth extending between an outer part and an inner part of the stator body; a plurality of coils configured to be respectively wound around the plurality of teeth between the outer part and the inner part of the stator body; characterized in that the stator also comprises at least one first connection frame disposed on the inner part of the stator body and configured to provide electrical connections between the coils.

Abstract: The present invention relates to a stator for an electric motor, comprising a plurality of separate teeth comprising a first connector and a second connector, a plurality of coils which are configured to be wound respectively around the plurality of separate teeth, a first end of the wire of the winding being configured to be positioned in the first connector and a second end of the wire of the winding being configured to be positioned in the second connector, a central module configured to receive the separate teeth, said central module comprising connecting frames comprising connecting tabs extending radially and configured to be inserted in a first connector or in a second connector of a separate tooth, the connecting frames being configured to provide electrical connections between the coils.

Abstract: A method for controlling a brushless and sensorless, direct current electric motor (3) for motor vehicle equipment, wherein the electric motor (3) comprises a rotor and phases (A, B, C) powered by a pulse width modulation applied to a power inverter (1) of the electric motor (3), and wherein, beyond a minimum threshold (Smin) of the rotation speed of the rotor, the position of the rotor is determined from a measurement of electromotive forces at the phases (A, B, C) of the electric motor (3), said control method is characterised in that, in the event of a command (104) to stop the electric motor (3), the speed of rotation of the rotor is reduced (105) from a nominal speed to a predetermined rotation speed (V1) within a range between the minimum threshold (Smin) and 10% above said minimum threshold (Smin) by modifying the pulse width modulation, then the electric motor (3) is stopped (106) in a predetermined position by short-circuiting the branches (A, B, C) of the inverter (1) when the predetermined position

Abstract: The system concerns a gear motor for a motor vehicle wiping system comprising:—an electric motor comprising a rotor, a stator and a rotating shaft solidly attached to the rotor,—a reducing mechanism connecting the rotating shaft and an output shaft of the gear motor.

Abstract: The present invention relates to a gear motor (101), in particular for a wiper system, comprising: -a brushless DC electric motor (103) including: -a rotor; -a stator having coils for electromagnetically exciting the rotor; -a device for determining the angular position of the rotor; -a control unit configured to generate control signals for supplying power to the electromagnetic excitation coils of the stator; -a reduction mechanism (104) that is linked on one side to the rotor of the electric motor (103) and on the other side to an output shaft (109), the reduction mechanism (104) having a predefined reduction ratio and; -an output angular position sensor (110) that is configured to measure the angular position of the output shaft (109), wherein the output angular position sensor (110) that is configured to transmit a signal corresponding to the measured angular position of the output shaft (109) to the device for determining the angular position of the rotor and said device is configured to determine the p

Abstract: The invention relates to a geared motor comprising a first brushless electric motor part having a stator, a rotor and a drive shaft, a second part having an output shaft and a reduction gear mechanism and an electronic part. The reduction gear mechanism comprises an output shaft, a worm and a toothed wheel designed to be engaged by the worm and to drive the output shaft in rotation. The geared motor comprises at least one rolling guide bearing disposed on the drive shaft and a multipolar magnet for measuring the position of the rotor. The rolling bearing is disposed between the measurement magnet and the worm such that the electric motor can be controlled depending on the measurement of the position of the rotor.

Abstract: The invention relates to a geared motor (1) for a motor-vehicle wiping system comprising an electric motor (2) comprising a rotor (20) including magnetic elements, a stator (21) having the electromagnetic excitation windings of the rotor, a rotary shaft (22) rigidly connected to the rotor, a reduction gear (3) linking the rotary shaft (22) and an output shaft of the geared motor, a casing (4) forming a protective envelope for said reduction gear, or the electric motor (2), and in which said reduction gear (3) includes a worm screw and worm wheel gear, the worm screw (30) being rigidly connected to the rotary shaft of the rotor (22), the worm wheel (31) rigidly connected to an output shaft (8) of the geared motor, bearing means (23, 24) for guiding the rotary shaft of the rotor (22) in rotation in relation to the casing (4), and potentially, a determination device for determining the angular position of the rotor including a multi-pole magnet (5) that is rigidly connected to the rotary shaft (22) of the rotor

Abstract: The present invention relates to a cleaning system for equipment of a motor vehicle comprising at least one wiper element; a mechanism for driving the wiper element, comprising an electric motor; a device for spraying a cleaning liquid comprising a hydraulic pump and at least one spray nozzle, in which the spraying device comprises a hydraulic valve to allow the supply of liquid to the at least one spray nozzle, said hydraulic valve comprising a movable plunger to allow or prevent the passage of the cleaning liquid, said movable plunger being movably connected to a movable element of the drive mechanism so that the position of said plunger is selected by a movement of said movable element of the drive mechanism.

Abstract: The present invention relates to a rotor (1) of a rotary electric machine, comprising: a body (3) comprising a cylindrical central core (5) and a circumferential plurality of arms (B1 . . . B18) extending radially out from the cylindrical central core (5), the body (3) being intended to be mounted with the ability to move about an axis of rotation X, a coilset produced by windings of turns and forming at least one series of coils (C1 . . . C9, C1? . . . C9?), a coil (C1 . . . C9, C1? . . . C9?) comprising a predetermined number of turns around at least two arms (B1 . . . B18) of the body (3), two adjacent coils (C1 . . . C9, C1? . . . C9?) of a series being angularly offset from one another with a partial overlap, in which the last coil (C9, C9?), situated radially furthest towards the outside, comprises a predetermined number of turns that is lower than the predetermined number of turns of the other coils of the series (C1 . . . C8, C1? . . . C8?).

Abstract: A wiper system including a brushless DC electric motor having a rotor, a stator having coils for electromagnetically exciting the rotor, a device for determining the angular position of the rotor with respect to the stator, a control unit configured to generate control signals for supplying power to the electromagnetic excitation coils according to the angular position of the rotor determined by the device for determining the angular position of the rotor, a reduction gear mechanism linked, on one side, to the rotor of the electric motor and, on the other side, to an output shaft that is intended to be linked to an external mechanism. The rotor includes at least one Hall effect sensor associated with a control magnet that rotates with the rotor and the gear motor also having a processing unit connected to the device for determining the angular position of the rotor.

Abstract: A brushless DC motor (1) comprises a rotor comprising magnetic elements twining poles of the electric motor (1) and a control magnet comprising a number of pole pairs equal to three times that of the electric motor (1), a stator having electromagnetic excitation coils, at least one first and one second Hall-effect sensor (17, 17?) configured to detect predetermined angular positions of the rotor, and a control unit configured to apply a predetermined sequence of excitation signals to the coils, wherein the Hall-effect sensors are spaced apart by an angle greater than or equal to 10°, the first Hall-effect sensor (17) is used to determine the switching times of the excitation signals and the second Hall-effect sensor (17?) is used, in combination with the first Hall-effect sensor (17), to determine the direction of rotation of the rotor when the motor starts up, or vice versa.

Abstract: A geared motor (1) for a motor-vehicle wiping system including an electric motor (2) is disclosed. The geared motor has a rotor (20) including magnetic elements, a stator (21) having the electromagnetic excitation windings, a rotary shaft (22) rigidly connected to the rotor, a reduction gear (3) linking the rotary shaft (22) and an output shaft of the geared motor, and a casing (4) forming a protective envelope for said reduction gear or the electric motor (2). The reduction gear (3) includes a worm screw and worm wheel gear, the worm screw (30) being rigidly connected to the rotary shaft of the rotor (22), the worm wheel (31) rigidly connected to an output shaft (8) of the geared motor, bearing means (23, 24) for guiding the rotary shaft of the rotor (22) in rotation in relation to the casing (4), and a determination device for determining the angular position of the rotor including a multi-pole magnet (5) that is rigidly connected to the rotary shaft (22) of the rotor (20).

Abstract: The present invention relates to a rotor (1) of a rotary electric machine, comprising: a body (3) comprising a cylindrical central core (5) and a circumferential plurality of arms (B1 . . . B18) extending radially out from the cylindrical central core (5), the body (3) being intended to be mounted with the ability to move about an axis of rotation X, a coilset produced by windings of turns and forming at least one series of coils (C1 . . . C9, C1? . . . C9?, C1? . . . C9?, C1?? . . . C9??), a coil (C1 . . . C9, C1? . . . C9?, C1? . . . C9?, C1?? . . . C9??) comprising a predetermined number of turns around at least two arms (B1 . . . B18) of the body, two adjacent coils (C1 . . . C9, C1? . . . C9?, C1? . . . C9?, C1?? . . . C9??) of a series being angularly offset from one another with a partial overlap, in which the rotor (1) comprises at least one additional retaining loop (S1, S1?, S2, S2?) wound around at least two arms (B1 . . . B18) of which at least one is common to the arms (B1 . . .

Abstract: The present invention relates to a brushless dc electric motor (1) comprising: a rotor (3) comprising at least two pairs of poles, a stator (5) having a plurality of teeth (D1, D2) around which windings (B1, B2, B3, B?1, B?2, B?3) forming coils for electromagnetic excitation of the rotor (3) are wound, wherein the stator (5) comprises a first type of tooth (D1) covering a first electrical angle and a second type (D2) of tooth covering a second electrical angle different from the first electrical angle and wherein a phase of the motor is formed by windings (B1, B?1 or B2, B?2 or B3, B?3) wound onto teeth of the first type (D1) and second type (D2).

Abstract: The system concerns a gear motor for a motor vehicle wiping system comprising:—an electric motor comprising a rotor, a stator and a rotating shaft solidly attached to the rotor,—a reducing mechanism connecting the rotating shaft and an output shaft of the gear motor.

Abstract: The invention relates to a gear motor (1) for a motor vehicle wiper system including an electric motor (2) including a rotor (20) and a rotation shaft (22) fixed to the rotor, a reduction gear mechanism (3) including a worm/worm wheel system, a device for generating an axial load configured to offset axial play of the rotation shaft (22), including a retaining wedge (6) mounted in a sliding manner in a radial direction of said rotation shaft (22), said retaining wedge (6) exerting an axial load on the outer race of a ball bearing (5) configured to guide the rotation shaft. According to the invention, said retaining wedge (6) is arranged in an intermediate position between the seat (40) of the bearing support (4) and the worm (30) directly adjacent to the worm wheel (31), said axial load (Fa) exerted by the retaining wedge (6) on the outer race (51) of the ball bearing (5) being in the direction away from the worm (30).

Abstract: The present invention relates to a gear motor (101), in particular for a wiper system, comprising: —a brushless DC electric motor (103) including: —a rotor (15); —a stator (13) having coils (17) for electromagnetically exciting the rotor (15); —a device (25) for determining the angular position of the rotor (15) with respect to the stator (13); —a control unit (21) configured to generate control signals for supplying power to the electromagnetic excitation coils (17) according to the angular position of the rotor (15) determined by the device (25) for determining the angular position of the rotor (15); —a reduction gear mechanism (104) linked, on one side, to the rotor (15) of the electric motor (103) and, on the other side, to an output shaft (109) that is intended to be linked to an external mechanism, in particular a wiper system, the reduction gear mechanism (104) having a predefined reduction ratio, said device (25) for determining the angular position of the rotor (15) comprises at least one Hall effect

Abstract: The subject matter of the present invention is a module (5) for cleaning an optical element protection device (3) intended to equip a motor vehicle, said protection device (3) having a surface of revolution configured to be arranged around the optical element. The cleaning module (5) includes at least one ring (51) configured to surround the protection device (3) and includes at least one wiping structure. The ring (51) is configured to be mobile in relative movement in translation along an axis of revolution (A2) of the ring (51) relative to the protection device (3) such that said at least one wiping structure (53) of the ring (51) is configured to wipe the surface of revolution of the protection device (3).

Abstract: The invention relates to a geared motor (1) for a wiper system of a motor vehicle, comprising a brushless direct-current electric motor (2) comprising: a rotor (20) comprising magnetic elements (29); a stator (21) comprising coils for the electromagnetic excitation of the rotor; a rotating shaft (22) secured to the rotor; a reducing mechanism (3) connecting the rotating shaft (22) and an output shaft (8) of the geared motor; and a housing (4) forming a protective envelope for the electric motor (2) and said reducing mechanism (3). According to the invention, a bearing (23) guides the rotating shaft (22) on one of the longitudinal ends of the rotating shaft, said bearing (23) being arranged inside the rotor (20) and stator (21) assembly and housed in a recess inside the rotor (20), the envelope of the housing (4) comprising an inwardly projecting part (40) penetrating said inner recess and carrying a seat (41) for said bearing (23).