• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a mechatronic assembly for the linear drive of an element comprising a control unit (1) and an actuator (2), the control unit (1) comprising a servo control algorithm and a power bridge. said algorithm driving said power bridge, the power bridge delivering a two-wire electrical signal (6) composed of a torque signal and a steering signal, the actuator (2) comprising a brushless electric motor (8). ) polyphase N phases, probes (11) binary detection of the position of the rotor of said motor (8), a device for transforming the rotational movement of the rotor into a linear movement of the control member, power switches ( 25) adapted to feed the N phases of the motor (8) from the two-wire electrical signal (6), characterized in that the state of the power switches (25) is directly controlled by a signal coming from the detection probes (11). .
    公开号:FR3021819A1
    申请号:FR1455021
    申请日:2014-06-03
    公开日:2015-12-04
    发明作者:Gael Andrieux；Antoine Foucaut
    申请人:MMT SA；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION [0001] The present invention relates to the field of linear electric actuators, for example for controlling the flow rates of fluids flowing in automotive heat engines, and more particularly to the field of reversible actuators requiring a return safety in the reference position, so-called "fail-safe" function, to control the flow of the fluid when the power supply is cut off by the battery. The invention specifically relates to a reversible linear actuator with two-wire automatic control offering better compactness, useful strength, endurance, temperature resistance and cost properties than the actuators described in the state of the art. STATE OF THE PRIOR ART [0002] We already know fluid dosing valves comprising a reversible actuator composed of the combination of a direct current motor or geared motor with a cam transformation system to generate a linear movement and control a regulating flow by more or less spacing a valve from its seat. These state-of-the-art combinations are based on different motor or geared motor solutions: A first solution is to use a brushed DC motor combined with a gear reducer and a cam transformation system for generate the axial displacement of the valve as for example described in US20120285411. This first solution has the advantages of a significant reduction in movement and therefore an interesting reserve of force, a simplicity of its control by means of a two-wire connection, the absence of other intelligent electronic organ. This solution is attractive in terms of cost and ability to work at high temperatures. However, this solution has two major disadvantages related to the mechanical switching of electrical signals, which induce wear of the brushes and therefore a limited life, but also significant electromagnetic emissions that disturb the other electronic devices located nearby. . These two drawbacks are becoming increasingly burdensome for the new automotive electric actuator specifications. On the one hand, the lifetimes required of the motors are longer and longer, and on the other hand the quantity and the proximity of the electric actuators in the motors make it necessary to reduce the electromagnetic emissions. Finally, the spatial configuration of the solution is not very advantageous because it requires placing the geared motor along an axis perpendicular to the axis of the output member of the actuator, which leads to a delicate integration on the block vehicle engine. A second type of solution is based on a torque motor, which is a second form of DC motor without brushes, which causes a cam device to generate the translation of a valve as for example described in the patent FR2978998. This solution has the same advantages of simplicity of piloting related to the two-wire control of the previous solution since it is also based on a DC motor, but it also benefits from the absence of brushes which allows it to to achieve very high lifetimes because there is no wear of the brush compared to the previous solution. In the end this solution is therefore interesting for its longevity and its low electromagnetic emissions due to the absence of brushes, it makes it possible to work at high temperature due to the absence of intelligent electronic components and therefore binding (cost), and finally for the simplicity of piloting that remains two-wire. [0006] On the other hand, it also has the drawbacks of being based on a limited-stroke actuator, which prohibits any form of reduction of movement in the upstream of the cam transformation system, which penalizes it greatly at maximum attainable forces. Indeed, the forces obtained on this second solution are half of that obtained with the first family of solutions for a higher consumed current. Like the actuators of the preceding family, the perpendicular orientation of the torque motor with respect to the output member, due to the cam roller transformation, leads to a delicate integration of the actuator. [0007] Finally, a third family of known solutions for these reversible actuators for controlling a fluid control valve is to use an electronically switched polyphase motor, commonly called BLDC for Brushless DC, which corresponds to a polyphase motor without brushes, whose internal electronic commutation to the control device makes it possible to control the electrical signals in the phases of the stator, as a function of the position of the rotor, which is measured by magneto-sensitive sensors. This motor is associated with a nut screw transformation system to generate the translation of the valve control member, in a movement coaxial with that of the motor. In this case the control device is quite complex since it works in a closed loop, to adapt the signals sent to the stator according to the actual position of the rotor. This solution is described in several patents including the European patent EP1481459. This solution has the advantages of not having brushes and thus offers the same safe values of longevity and low magnetic emissivity as the previous solution, but also has a reduction in movement sufficient to achieve similar high forces. to those obtained with the 25 solutions of the first family. Finally, this configuration is interesting from the point of view of integration because the coaxial nature of the movement of the central screw relative to the stator of the motor leads to a generally axisymmetric construction which greatly facilitates its integration on an engine block and allows advantages of overall compactness of the solution. However, this solution requires the use of a complex control electronics incorporating an intelligence that must interpret the information of the rotor position sensor to control the phases of the stator accordingly. This results in an expensive and limited temperature solution because the microcontroller which manages the engine control is limited to 140 ° C which is too low for the new environmental constraints of the valves under the automobile hood. SUMMARY OF THE INVENTION The present invention aims at overcoming the drawbacks of the state of the art by producing a compact linear actuation solution using a brushless motor driven by a two-wire signal via a single set of electronic components. allowing the use in high temperature higher than 140 ° C. Another object of the invention is to allow a linear output in the axis of rotation of the brushless motor through the use of a screw-driven motion transformation system, internal to the rotor. Another object of the invention is to allow the return to safety position (commonly called fail-safe function) through the use of a return spring coupled to a planetary gear type. To do this, the present invention is based on a polyphase motor brushless electronic switching, incorporating a high efficiency motion transformation and can receive a very compact reference position reminder device, which allows to propose the integration of all required functions in a coaxial construction. The device for reducing movement by screw nut, or even by two nuts and a double inverted thread on the screw, can achieve a factor of 3021819 significant movement reduction and a good performance to achieve a power of high output and a good reserve of strength. The control unit, which is based on a two-wire command from the power bridge for powering the power switches controlled directly by the magneto-sensitive elements for reading the position of the rotor, leads to an interesting compromise between a conventional auto-switch electronics for brushless motor and basic brush motor control. This electronic solution is both powerful and inexpensive, and it allows to work at high temperature due to the absence of embedded intelligence 10. Finally the coupling of a planetary gear and a torsion spring allows to integrate very compactly an effective return solution in the reference position of the engine. Indeed, the gearbox reduces the angular travel of the rotor, up to several turns, to drive a hub on a limited stroke and thus work a torsion spring in good condition without being penalized by parasitic friction turns that occur when the amplitude of the angular movement is greater than 270 °. [0019] The torsion spring is made up of a few wire windings over a diameter which is around the rotor guide and allows integration into the actuator without lengthening or enlarging its initial size. This also allows to keep a coaxial construction, easier to integrate into the engine environment. The invention relates, according to its most general meaning, to a mechatronic assembly 25 for the linear drive of an element comprising a control unit and an actuator, the control unit comprising a servo control algorithm and a control bridge. power, said algorithm driving said power bridge, the power bridge delivering a two-wire electrical signal composed of a torque signal and a direction signal, the actuator comprising an N-phase polyphase brushless electric motor, binary detection probes of the rotor position of said motor, a device for transforming the rotational movement of the rotor into a linear movement of the control member, power switches capable of supplying the N phases of the motor from the electrical signal bifilaire characterized in that the state of the power switches is controlled directly by a signal from the detection probes. The term "directly controlled" means that the detection probes are electrically connected to the output switches and not to a microcontroller. The electrical signal delivered to the switches is the output signal of the detection probes. The only possible electrical components interposed between a probe and a switch are passive components such as a resistor, a capacitor, or a diode. Advantageously, the N-phase polyphase motor consists of N 15 unipolar or bipolar coils, or N * 2 unipolar half-coils. According to one variant, the binary detection probes of the position of the rotor are fed by the two-wire electrical signal. According to another variant, the movement transformation device has at least one nut connected to the rotor of the motor and at least one threaded portion connected to the control member of the actuator and in that the rotor drives the return device in position through a planetary reducer. According to another variant, the movement transformation device has a nut connected to the rotor and a second nut linked to the stator housing, each collaborating with two portions of the control member having threads of opposite directions and the rotor drives the return device into position through a planetary gear. According to another variant, the mechatronic assembly comprises a position sensor comprising a magnet connected to the control member and a magnetosensitive element connected to the control unit and in that the magnetosensitive element is designed able to read the axial position of the control member. According to another variant, it comprises a position sensor comprising a magnet connected to the control member and a magnetosensitive element connected to the control unit, and in that the magnetization pattern of the magnet is designed to allow the reading of axial position of the control member during its helical movement. Preferably, this assembly comprises a position sensor comprising a magnet connected to the control member and a magnetosensitive element connected to the control unit and in that the magnetization pattern of the magnet is axisymmetric. The invention also relates to a mechatronic assembly for the linear drive of an element comprising a control unit and an actuator, the control unit comprising a servo control algorithm and a power bridge, said driving algorithm said power bridge, the power bridge providing a two-wire electrical signal composed of a torque signal and a steering signal, the actuator comprising an N-phase polyphase brushless electric motor, binary detection probes of the position of the rotor of said motor, a device for transforming the rotational movement of the rotor into a linear movement of the control member, a reference position return device comprising a torsion spring, power switches 25 capable of supplying the N motor phases from the two-wire electrical signal characterized in that the state of the power switches is directly controlled by a signal from the detection probes. Preferably, the N-phase polyphase motor consists of N unipolar or bipolar coils, or N * 2 unipolar half-coils. According to an advantageous embodiment, the binary detection probes of the position of the rotor are fed by the two-wire electrical signal. [0032] Advantageously, the motion transformation device has at least one nut connected to the rotor of the motor and at least one threaded portion connected to the control member of the actuator and in that the rotor drives the return device. in position through a planetary reducer. According to an advantageous variant, the motion transformation device has a nut connected to the rotor and a second nut connected to the stator housing, each collaborating with two portions of the control member 10 having threads of opposite directions and the rotor drives the return device into position through a planetary gear. According to another variant, the mechatronic assembly according to the invention comprises a position sensor comprising a magnet connected to the control member and a magneto sensitive element connected to the control unit and in that the magneto-sensitive element is designed able to read the axial position of the control member. Preferably, it comprises a position sensor comprising a magnet connected to the control member and a magneto sensitive element connected to the control unit, and in that the magnetization pattern of the magnet is designed adapted to allow the reading of axial position of the control member during its helical movement. According to another variant, the mechatronic assembly comprises a position sensor comprising a magnet connected to the control member and a magneto-sensitive element connected to the control unit and in that the magnetization pattern of 25 the magnet is axisymmetric. Advantageously, the winding axis of the torsion spring is concentric with the axis of rotation of the polyphase motor. According to another variant, the angular travel of the torsion spring (20) is limited mechanically by an excrescence related to the spring itself or to one of the elements of the planetary gear (18) operating in a limited circular space. BRIEF DESCRIPTION OF THE FIGURES [0039] Other features and advantages of the invention will emerge from the following reading of detailed embodiments, with reference to the appended figures which represent respectively: FIG. 1, a typical mechatronics architecture used for control via a two-wire control of an engine according to the invention; Figure 2, the detail of a rudimentary electronic circuit that can be used in the invention; FIG. 3a, an example of a switching logic electronic circuit 15 in a first "unipolar 120" mode and its truth table; FIG. 3b, an example of a switching logic electronic circuit according to a second "unipolar 180" mode and its truth table; Fig. 4 is an exemplary control logic electronic circuit with its truth table for a bipolar driving mode in a first embodiment; FIG. 5, an example of a control logic electronic circuit with its truth table for a bipolar driving mode in a second embodiment; - Figures 6a and 6b, a first embodiment of the linear actuator 25 incorporating a screw-nut system; FIGS. 7a and 7b, a second embodiment of the linear actuator incorporating a screw-nut system and a reference position return system; Figures 8a and 8b, a partial sectional view and a three-quarter view of a geared motor assembly according to the invention using a third embodiment; Figures 9a and 9b, a partial sectional view and a three-quarter view of a geared motor assembly according to the invention using the third embodiment of Figures 8a and 8b. FIG. 10a and 10b, according to the preferred embodiments of FIGS. 8 and 9, the position-return solution coupled to the planetary reduction assembly.
    [0002] DETAILED DESCRIPTION OF AN EMBODIMENT FIG. 1 depicts a mechatronic assembly according to the invention composed of a power source (4) supplying a control unit (1) driving a compound actuator (2). a brushless DC motor (8) associated with a mechanical mechanical transformation unit (9) of the rotation into a linear displacement, together here symbolized in the form of a screw-nut type system. A sensor (7), coupled to the mechanical output (12), here the nut, of the actuator (2), returns the position information (5) to the control unit (1) which acts on the 20 control signals (6) grouped in a connection connector (3). The position of the motor rotor (8) is read using N probes (11) which, via a rudimentary electronic circuit (10), auto-switch the N phases of the motor (8). [0041] Figure 2 shows this rudimentary electronics (10) that can be used in the invention. It consists of a set of control transistors (25) directly driven by the signals from the Hall probes (11) detecting the position of the motor rotor via a switching logic (26), composed of simple electronic elements without microprocessor. A voltage regulator (28) allows the two-wire control signal to be used to power the Hall probes (11). FIG. 3a shows an example of control in the case of a first unipolar "120 °" driving mode of a three-phase wired star-shaped motor. The voltage (PWR +) being positive on the common point, the current always flows in the same direction in the windings. The voltage from the voltage regulator (28) from the two-wire control feeds the detector block (13) and the Hall probes (Ha, Hb, Hc). Depending on the position of the rotor, these different digital probes are in low state (equivalent to a zero voltage) or high (voltage type 5V). Depending on the state of the probes, the different transistors 01 to Q6 are open or closed and thus allow the flow or not 10 of the current in the different phases. The driving mode that can be obtained with the example of FIG. 5 is a control mode at 120 °, that is to say that each of the phases is powered during 120 ° electrical (an electrical degree being equal to a mechanical degree multiplied by the number of pole pairs of the motor magnet). [0043] In the same way, FIG. 3b shows an example of "unipolar" 180 ° piloting. Transistors 01 to Q3 are open or closed depending on the state of the Hall probes, fed by the regulated two-wire signal. The transistors are open / closed on electrical 180 °. The choice of control in 120 ° or 180 ° mode can be made according to the number of authorized control transistors 20 or the desired profile and torque level of the engine. It is possible to drive the motor in bipolar mode (current flow in both directions in each phase). For this, it is sufficient to have two separate coils per phase, each being wound in the opposite direction of the other. Thus, taking the example of FIG. 4 and phase A, the coil A + 25 is wound in the opposite direction to that of the coil A-. When transistor 01 is open, and Q2 is closed, the current flows in phase A- and the magnetic field in the phase is oriented in a first direction. On the other hand, when transistor 01 is closed and Q2 is open, the current flows in phase A + is the magnetic field in the phase is oriented in a second direction opposite to the first. The same is true for the other two phases B and C of the example of FIG. 4. In order to correctly sequence the openings and closures of transistors Q1 to Q6, the switching logic block (26) must have a logic control unit (14), composed of simple electronic elements such as logic gates for producing the presented truth table. The complete electronic diagram is not shown for the sake of clarity but can be easily considered for the skilled person. [0045111 is noted that it is possible to achieve a bipolar connection of the motor coils, as explained in Figure 5 keeping 6 power transistors. The control logic (14) is adapted to the corresponding truth table 10 shown in FIG. 5. FIG. 6a shows a sectional view of a linear actuator according to the invention, which comprises a polyphase brushless motor (8), integrating a rotor and a stator. The housing (21) of the stator carries, on its front face, an electronic circuit (10) comprising a two-wire control device as described above. The rotor 15 (15) carries a magnet (34) provided adapted to excite digital probes (11) placed on the electronic circuit (10), and integrates a nut (16) whose rotation causes the translation of the central axis ( 17) which is locked in rotation by means of a sliding connection with the front flange (29). The digital probes (11) make it possible, according to the control logic described above, to auto-switch the phases of the stator, and the pins connected to the control signals (6) of the motor consist of only two power supply wires. . Furthermore, the translatory central axis (17) carries a magnet (24) designed to excite a magneto-sensitive element (30) placed on the front face of the electronic card (10), so as to give information about position (5) (not visible in FIG. 6a but only at 6b) of this control member. This sensor, powered by two supply wires separate from those of the motor, delivers a position information (5) of the central axis (17) which allows a control unit external to the actuator, to control the position of the the central axis (17) by comparing its actual position to the desired desired position. As illustrated in FIG. 6b, the actuator has a connection connector (3) having only five electrical connections: 2 of these connections constitute the control signals (6) of the motor and the other three connections constitute the power supply. of the position sensor and its output signal in the form of position information (5). FIGS. 7a, in an isolated view of the rotor (15) with a planetary gear (18), and 7b, in cutaway view of the complete engine, show a second embodiment of the linear actuator according to the invention, wherein the rotor (15) of the polyphase motor incorporates a nut (16) which collaborates on the one hand with a threaded portion of the central axis (17) constituting the control member, and on the other hand with a reducer sun gear (18) consisting of 3 satellites located around the rotor (15) driving an internal gear (19) which itself drives the torsion spring (20). The central axis (17) is slidably connected to the front flange (21) of the actuator housing so that the rotation of the nut (16) of the rotor (15) causes the translation 15 of the central axis (17). The rotation of the rotor (15) causes the loading of the torsion spring (20) whose travel is limited by the internal gear (19), which has a lug which circulates in a notch (not visible in Figure 6b) connected to the casing of the actuator. The amplitude of the circular movement of the spring (20) is therefore greatly reduced with respect to the movement of the rotor (15) thanks to the reduction of this planetary gear (18) and allows a slight deformation of the spring (20) and thus avoids the frictional losses of the spring (20) on its guide sleeve (23). The torque of the rotor (15) is converted into translation of the control member by the screw / nut connection which therefore transmits the mechanical power. The planetary gear can advantageously be made of plastic since it is only used to transmit the restoring torque stored in the spring so as to guarantee the return to a reference position of the control member of the actuator. The plastic gears of the gearbox therefore do not transmit the useful mechanical power output of the actuator but a limited torque, calculated to overcome the magnetostatic torque 30 of the rotor (15) and ensure the return to the reference position when the engine is not 3021819 14 more powered. A magnet (24) is bonded to the rear end of the central axis (17) and collaborates with a magnetosensitive element (30), the magnet assembly (24) and magnetosensitive element (30) forming a position sensor. The magnetosensitive element (30) is connected to the motor control device, so that the axial displacement of the control member is read and interpreted by the control device which can then control that the positioning of the control unit corresponds to the setpoint position (closed loop operation). FIGS. 8a and 8b show a third embodiment in which the motion transformation is carried out by means of a screw solution with a double opposite thread. The rotor (15) has a first nut (16) which collaborates with a first threaded portion of the central axis (17), while a second nut (27) connected to the frame collaborates with a second threaded portion of the axis central (17) whose helical direction is opposite to the first portion. Thus the rotation of the nut (16) bound to the rotor forces the central axis (17) to be screwed into the second fixed nut (27), and thus to describe a helical movement. The control member of the actuator thus describes a propeller and the shape of the shutter of the valve connected to the actuator must be designed to accept this component of rotation during fluid dosing. The position sensor for reading the axial position of the control member is similar to that of FIGS. 7a and 7b. However, it differs from the magnetization pattern of the magnet (24) which must be adapted to the relative movement of the magnet (24) with respect to the magnetosensitive element (30) which, in this second mode of realization, is helical. A preferential but nonlimiting solution consists in printing an axisymmetric magnetization (identical during a rotation) on the magnet (24) so that the rotation of the control member is not detected by the magnetosensitive element (30). ) forming the sensor. Figures 9a and 9b show views in section and in perspective of an actuator according to the mode of - .. embodiment of Figures 8a and 8b. This embodiment combines the simplified electronic control device, the double helix motion transformation solution coupled to a position sensor of the helical movement of the control member, and finally a return device in the position of reference by a torsion spring applying a restoring moment on the rotor through a planetary reducer distributed coaxially around the rotor. The casing of the actuator is composed on the one hand of a casing (21) overmolded around the stator and a front flange (29) separated so that it is easy to modify the front part of the actuator comprising the reducer and the spring, without change of the rear part comprising the motor part and the control electronics. Figures 10a, 10b and 10c detail the original reference position return solution, which is based on the combination of a torsion spring (20) with a planetary gear type gearbox (18). The spring (20) has a fixed catch (40) attached to the stator housing (21) and a movable catch (41) attached to the inner gear ring (19), which has a lug (42), which circulates in a path (43) of limited length made in the housing of the stator (21) so as to pre-load the spring. The ring gear (19) is driven by three planet gears (36), which are driven by the central gear (35) integral with the rotor (15). The reduction ratio between the movement of the rotor (15), up to several revolutions, and the reduction ring (19) is chosen so as to limit the working angle of the spring (20) to a reduced stroke, 180 to 270 degrees. In this way, the turns of the spring are weakly constrained and provide a return function with minimal friction. The planetary gear (18) can be made of plastics because it transmits only the spring torque, and not the useful torque of the motor which is operated in parallel by the motion transformation device.
    权利要求:
    Claims (18)
    [0001]
    REVENDICATIONS1. Mechatronic assembly for the linear drive of an element comprising a control unit (1) and an actuator (2), the control unit (1) comprising a servo control algorithm and a power bridge, said algorithm driving said power bridge, the power bridge delivering a two-wire electrical signal (6) composed of a torque signal and a direction signal, the actuator (2) comprising a polyphase N-phase brushless electric motor (8) , probes (11) for detecting the position of the rotor of said motor (8), a device for transforming the rotational movement of the rotor into a linear movement of the control member, power switches (25) capable of feeding the N phases of the motor (8) from the two-wire electrical signal (6) characterized in that the state of the power switches (25) is directly controlled by a signal from the detection probes (11).
    [0002]
    2. Mechatronic assembly according to claim 1 characterized in that the motor (8) N-phase polyphase consists of N unipolar or bipolar coils, or N * 2 unipolar half-coils.
    [0003]
    3. Mechatronic assembly according to one of claims 1 to 2 characterized in that the probes (11) binary detection of the rotor position (15) are fed by the two-wire electrical signal (6).
    [0004]
    4. Mechatronic assembly according to one of claims 1 to 3 characterized in that the motion transformation device (9) has at least one nut (16) connected to the rotor (15) of the motor and at least one threaded portion connected to the control member of the actuator and in that the rotor causes a return device in position through a planetary gear (18).
    [0005]
    5. Mechatronic assembly according to one of claims 1 to 3 characterized in that the motion transformation device (9) has a nut (16) connected to the rotor 30 (15) and a second nut (27) connected to the housing stator, each collaborating with two portions of the control member having threads of opposite directions and in that the rotor (15) drives the return device in position through a planetary gear (18). 5
    [0006]
    6. Mechatronic assembly according to one of claims 1 to 5 characterized in that it comprises a position sensor comprising a magnet (24) connected to the control member and a magnetosensitive element (30) connected to the unit of control and in that the magnetosensitive element (30) is designed to read the axial position 10 of the control member.
    [0007]
    7. Mechatronic assembly according to claim 5, characterized in that it comprises a position sensor comprising a magnet (24) connected to the control member and a magnetosensitive element (30) connected to the control unit, and in that the magnetization pattern of the magnet is designed capable of permitting reading of the axial position of the control member during its helical movement.
    [0008]
    8. A mechatronic assembly according to claim 5 characterized in that it comprises a position sensor comprising a magnet (24) connected to the control member and a magnetosensitive element (30) connected to the control unit and in that the magnetization pattern of the magnet (24) is axisymmetric.
    [0009]
    A mecatronic assembly for the linear drive of an element comprising a control unit (1) and an actuator (2), the control unit (1) comprising a servo control algorithm and a power bridge, said algorithm driving said power bridge, the power bridge delivering a two-wire electrical signal (6) composed of a torque signal and a steering signal, the actuator (2) comprising a polyphase brushless electric motor (8) at N phases, binary detection probes (11) for the position of the rotor of said motor (8), a device for transforming the rotational movement of the rotor into a linear movement of the control member, a return device for the 3021819 18 reference position comprising a torsion spring, power switches (25) able to supply the N phases of the motor (8) from the two-wire electrical signal (6) characterized in that the state of the power switches (25) ) is directly controlled by a signal from the detection probes (11). 5
    [0010]
    10. Mechatronic assembly according to claim 9 characterized in that the motor (8) polyphase N phases consists of N unipolar or bipolar coils, or N * 2 unipolar half-coils. 10
    [0011]
    11. Mechatronic assembly according to one of claims 9 to 10 characterized in that the binary detection probes (11) of the rotor position (15) are fed by the two-wire electrical signal (6).
    [0012]
    12. Mechatronic assembly according to one of claims 9 to 11, characterized in that the motion transformation device (9) has at least one nut (16) connected to the rotor (15) of the motor and at least one threaded portion to the control member of the actuator and in that the rotor drives the return device in position through a planetary gear (18). 20
    [0013]
    13. Mechatronic assembly according to one of claims 9 to 11 characterized in that the motion transformation device (9) has a nut (16) connected to the rotor (15) and a second nut (27) connected to the stator housing , each collaborating with two portions of the control member having threads of opposite directions and in that the rotor (15) drives the return device 25 in position through a planetary gear (18).
    [0014]
    14. Mechatronic assembly according to one of claims 9 to 13 characterized in that it comprises a position sensor comprising a magnet (24) connected to the control member and a magneto sensitive element (30) connected to the unit in that the magneto-sensitive element (30) is designed to read the axial position of the control member.
    [0015]
    15. A mechatronic assembly according to claim 13 characterized in that it comprises a position sensor comprising a magnet (24) connected to the control member and a magneto-sensitive element (30) connected to the control unit, and in that the magnetization pattern of the magnet is designed capable of permitting the reading of the axial position of the control member during its helical movement. 10
    [0016]
    16. Mechatronic assembly according to claim 13 characterized in that it comprises a position sensor comprising a magnet (24) connected to the control member and a magneto-sensitive element (30) connected to the control unit and in that the magnetization pattern of the magnet (24) is axisymmetric. 15
    [0017]
    Mechnatronic assembly according to one of Claims 9 to 16, characterized in that the winding axis of the torsion spring (20) is concentric with the axis of rotation of the polyphase motor
    [0018]
    18. Mechatronic assembly according to any one of claims 9 to 17, characterized in that the angular travel of the torsion spring (20) is mechanically limited by a protrusion related to the spring itself or to one of the elements of the planetary reducer (18) operating in a limited circular space.
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    同族专利:
    公开号 | 公开日
    US10122311B2|2018-11-06|
    JP2017518020A|2017-06-29|
    FR3021819B1|2016-06-03|
    EP3152821A2|2017-04-12|
    CN106664044A|2017-05-10|
    CN106664044B|2020-06-12|
    JP6599901B2|2019-10-30|
    US20170085203A1|2017-03-23|
    WO2015185528A2|2015-12-10|
    KR20170015911A|2017-02-10|
    WO2015185528A3|2016-03-10|
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    FR3022414B1|2014-06-12|2016-07-01|Mmt Sa|MECATRONIC ASSEMBLY FOR DRIVING AN EXTERNAL BODY USING A BRUSHLESS MOTOR AND A SINGLE ASSEMBLY OF ELECTRONIC COMPONENTS.|FR3039337B1|2015-07-23|2017-09-01|Mmt Sa|COMPACT MOTOREDUCER|
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    法律状态:
    2015-05-26| PLFP| Fee payment|Year of fee payment: 2 |
    2015-12-04| PLSC| Publication of the preliminary search report|Effective date: 20151204 |
    2016-05-26| PLFP| Fee payment|Year of fee payment: 3 |
    2017-05-23| PLFP| Fee payment|Year of fee payment: 4 |
    2018-05-25| PLFP| Fee payment|Year of fee payment: 5 |
    2020-05-20| PLFP| Fee payment|Year of fee payment: 7 |
    2021-05-19| PLFP| Fee payment|Year of fee payment: 8 |
    2021-12-03| TP| Transmission of property|Owner name: SONCEBOZ AUTOMOTIVE S.A., CH Effective date: 20211021 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1455021A|FR3021819B1|2014-06-03|2014-06-03|LINEAR REVERSIBLE LINEAR ACTUATOR WITH BIFILAR CONTROL|FR1455021A| FR3021819B1|2014-06-03|2014-06-03|LINEAR REVERSIBLE LINEAR ACTUATOR WITH BIFILAR CONTROL|
    KR1020167033940A| KR20170015911A|2014-06-03|2015-06-02|Self-switching, reversible linear actuator having bifilar control|
    JP2016570841A| JP6599901B2|2014-06-03|2015-06-02|Self-switching reversible linear actuator with two-wire control|
    PCT/EP2015/062205| WO2015185528A2|2014-06-03|2015-06-02|Self-switching, reversible linear actuator having bifilar control|
    EP15726148.8A| EP3152821A2|2014-06-03|2015-06-02|Self-switching, reversible linear actuator having bifilar control|
    US15/310,593| US10122311B2|2014-06-03|2015-06-02|Self-switching, reversible linear actuator having bifilar control|
    CN201580029840.3A| CN106664044B|2014-06-03|2015-06-02|Two-wire controlled auto-switching reversible linear actuator|
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