Method for controlling the operation of an electromechanical actuator for a blinding device, electromechanical actuator and associated blinding device

Abstract

Method for controlling an electromechanical actuator for a blackout device, associated electromechanical actuator and blackout device. A method for controlling an actuator in operation includes a first control step (E20) of first and second clutches, a second control step (E30) of a motor, a triggering step (E40) of a counting device for a period of time (T), simultaneously with the second control step.Following the elapsed time period (T), the process includes a first reading step (E50) of a first value (V1), detected by a first position detection device, and / or a second reading step (E60) of a second value (V2), detected by a second position detection device, then a first comparison step (E70) of the first value (V1) with respect to a first threshold value (S1) and / or a second comparison step (E80) of the second value (V2) with respect to a second threshold value (S2).Depending on a selected setpoint (CONS1, CONS2, CONS3) during the first control step, and depending on the result of the first comparison step (E70), if the first value (V1) differs from a first target value (C1), and / or the result of the second comparison step (E80), if the second value (V2) differs from a second target value (C2), then the process includes at least one electrical deactivation step (E90) of the motor. See Figure 3 for the abbreviation.

Description

Title of the invention: Method for controlling the operation of an electromechanical actuator for a blinding device, electromechanical actuator and associated blinding device

[0001] The present invention relates to a method of controlling in operation an electromechanical actuator for a blackout device, in other words a blackout device.

[0002] The present invention also relates to an electromechanical actuator for a blackout device, in other words an electromechanical actuator of a blackout device, as well as a blackout device comprising a screen driven in movement by such an electromechanical actuator.

[0003] In general, the present invention relates to the field of blackout devices comprising a motorized drive device moving a screen, between at least a first position and at least a second position and between at least a third position and at least a fourth position.

[0004] More particularly, the present invention relates to the field of shading devices comprising at least one screen, a first movable bar, a second movable bar, and a motorized drive device. In an assembled configuration of the shading device, the first movable bar is positioned between the upper part of a window or door and the second movable bar. The second movable bar is positioned between the first movable bar and the lower part of the window or door. The screen is positioned between the first and second movable bars. The screen is configured to be driven by the motorized drive device.The motorized drive device sets in motion, on the one hand, the first movable bar connected to the screen, between at least a first position and at least a second position, and, on the other hand, the second movable bar connected to the screen, between at least a third position and at least a fourth position.

[0005] A motorized drive device includes an electromechanical actuator of a movable shading or sun protection element, such as a blind or any other equivalent material, hereinafter referred to as a screen.

[0006] Document WO 2021 / 123176 A1, which describes an electromechanical actuator for a blinding device, is already known. The electromechanical actuator comprises an electric motor, a first coupling element, a second coupling element, a first clutch, a second clutch, a control unit, a first position detection device, and a second device Position detection. The first clutch is engaged or disengaged to lock or unlock the first coupling element in rotation with the electric motor. The second clutch is engaged or disengaged to lock or unlock the second coupling element in rotation with the electric motor. The control unit operates the electric motor and each of the first and second clutches. Each of the first and second position detection devices is configured to work with the control unit to determine the position of the first or second coupling element, respectively. This electromechanical actuator is generally satisfactory.

[0007] A method for controlling the operation of this electromechanical actuator includes a first step of controlling the first and second clutches from the control unit, so as to rotate either only the first coupling element by selecting a first setpoint, or only the second coupling element by selecting a second setpoint, or both the first and second coupling elements simultaneously by selecting a third setpoint. The method also includes a second step of controlling the electric motor from the control unit, the second control step consisting of electrically activating the electric motor.

[0008] However, this document is silent regarding the detection of malfunctions in the first and second clutches. The detection of a fault in the engaged state and a fault in the disengaged state of the first and second clutches is not envisaged.

[0009] The present invention aims to resolve the aforementioned drawbacks and to propose a method for controlling in operation an electromechanical actuator for a blackout device, an electromechanical actuator for a blackout device, as well as a blackout device comprising such an electromechanical actuator, making it possible to detect at least one malfunction of at least one of the first and second clutches, according to a setpoint selected to drive in rotation either only the first coupling element, or only the second coupling element, or the first and second coupling elements simultaneously.

[0010] In this regard, the present invention relates, according to a first aspect, to a method for controlling the operation of an electromechanical actuator for a blackout device,

[0011] the electromechanical actuator comprising at least:

[0012] - an electric motor,

[0013] - a first coupling element,

[0014] - a second coupling element,

[0015] - a first clutch, the first clutch being engaged or disengaged, so that to connect or disconnect, at least in rotation, the first coupling element with respect to the electric motor,

[0016] - a second clutch, the second clutch being engaged or disengaged, so as to lock or unlock, at least in rotation, the second coupling element with respect to the electric motor,

[0017] - a control unit, the control unit controlling the electric motor and each of the first and second clutches,

[0018] - a first position detection device, and

[0019] - a second position detection device,

[0020] each of the first and second position detection devices being configured to, in cooperation with the control unit, determine respectively a position of the first coupling element or of the second coupling element.

[0021] The method comprises at least:

[0022] - a first step of controlling the first and second clutches, to starting from the control unit, so as to engage at least one of the first and second clutches to drive in rotation either only the first coupling element by selecting a first setpoint, or only the second coupling element by selecting a second setpoint, or the first and second coupling elements simultaneously by selecting a third setpoint, and

[0023] - a second stage of controlling the electric motor, from the unit of control, the second control step consisting of electrically activating the electric motor.

[0024] According to the invention, the control unit includes at least one time counting device.

[0025] In addition, the method comprises at least:

[0026] - a triggering step of the time counting device during a a predetermined time period, with the triggering step being implemented simultaneously with the second command step,

[0027] - following the elapsed predetermined period of time,

[0028] - a first step of reading a first value, detected by the first position detection device, or a second step of reading a second value, detected by the second position detection device, or a first step of reading a first value, detected by the first position detection device, and a second step of reading a second value, detected by the second position detection device, then

[0029] - a first step of comparing the first value, detected by the first position detection device, relative to a first predetermined position threshold value, or a second step of comparison of the second value, detected by the second position detection device, relative to a second predetermined position threshold value, or a first step of comparison of the first value, detected by the first position detection device, relative to a first predetermined position threshold value and a second step of comparison of the second value, detected by the second position detection device, relative to a second predetermined position threshold value.

[0030] Depending on the instruction selected during the first ordering step, and depending on the result:

[0031] - of the first comparison step, if the first value, detected by the first detection device, is different from a first target value,

[0032] or

[0033] - of the second comparison step, if the second value, detected by the second detection device, is different from a second target value,

[0034] or

[0035] - of the first comparison step and the second comparison step, if at unless one of the first and second values, detected by the first and second position detection devices, differs from a first or second target value,

[0036] then the method includes at least one electrical deactivation step of the electric motor.

[0037] Thus, this method makes it possible to detect at least one malfunction of at least one of the first and second clutches, according to a setpoint selected to drive in rotation either only the first coupling element, or only the second coupling element, or the first and second coupling elements simultaneously.

[0038] In this way, the detection of the malfunction or malfunctions of at least one of the first and second clutches is implemented by software via the control unit.

[0039] Furthermore, the implementation of this method allows the electromechanical actuator to be devoid of clutch and disengagement detection sensors for the first and second clutches.

[0040] Consequently, the cost of obtaining the electromechanical actuator is minimized.

[0041] According to an advantageous feature of the invention, depending on the selected instruction during the first control step, and depending on the result:

[0042] - of the first comparison step, if the first value, detected by the first detection device, is equal to the first target value,

[0043] or

[0044] - of the second comparison step, if the second value, detected by the The second detection device is equal to the second target value.

[0045] or

[0046] - of the first comparison step and the second comparison step, if Each of the first and second values, detected by the first and second position detection devices, is equal to the first or second target value.

[0047] then the method includes a step of maintaining the second step of controlling the electric motor.

[0048] According to another advantageous feature of the invention,

[0049] - the first comparison step corresponds either to a determination step of a failure to disengage the first clutch, or at a stage of determining a fault in the first clutch,

[0050] or

[0051] - the second comparison step corresponds either to a determination step of a failure to disengage the second clutch or at a stage of determining a fault in the clutch of the second clutch.

[0052] According to another advantageous feature of the invention, if the first setpoint is selected, during the first control step, then:

[0053] - the second comparison step corresponds to a fact determination step that the second value, detected by the second position detection device, is greater than or equal to the second predetermined position threshold value,

[0054] or

[0055] - the first comparison step corresponds to a fact determination step that the first value, detected by the first position detection device, is strictly less than the first predetermined position threshold value,

[0056] or

[0057] - the first comparison step corresponds to a fact determination step that the first value, detected by the first position detection device, is strictly less than the first predetermined position threshold value and the second comparison step corresponds to a step of determining whether the second value, detected by the second position detection device, is greater than or equal to the second predetermined position threshold value.

[0058] According to another advantageous feature of the invention, if the second setpoint is selected, during the first control step, then:

[0059] - the first comparison step corresponds to a fact determination step that the first value, detected by the first position detection device, is greater than or equal to the first predetermined position threshold value,

[0060] or

[0061] - the second comparison step corresponds to a fact determination step that the second value, detected by the second position detection device, is strictly less than the second predetermined position threshold value,

[0062] or

[0063] - the first comparison step corresponds to a fact determination step that the first value, detected by the first position detection device, is greater than or equal to the first predetermined position threshold value and the second comparison step corresponds to a step of determining that the second value, detected by the second position detection device, is strictly less than the second predetermined position threshold value.

[0064] According to another advantageous feature of the invention, if the third instruction is selected, during the first command step, then:

[0065] - neither of the first and second comparison steps is implemented,

[0066] or

[0067] - the first comparison step corresponds to a fact determination step that the first value, detected by the first position detection device, is strictly less than the first predetermined position threshold value and the second comparison step corresponds to a step of determining that the second value, detected by the second position detection device, is strictly less than the second predetermined position threshold value.

[0068] According to another advantageous feature of the invention, the first and second predetermined position threshold values ​​are equal.

[0069] The present invention relates, according to a second aspect, to an electromechanical actuator for a blackout device according to the invention and as mentioned above.

[0070] According to the invention, the control unit is configured to implement the process, in particular the steps of the process, according to the invention and as mentioned above.

[0071] This electromechanical actuator has characteristics and advantages similar to those described above in relation to the method according to the invention.

[0072] According to a third aspect, the present invention relates to a concealment device,

[0073] the obscuring device comprising at least:

[0074] - a screen, the screen comprising a first end and a second end, the the second end being opposite to the first end,

[0075] - a first movable bar, the first end of the screen being connected to the first movable bar,

[0076] - a second movable bar, the second end of the screen being connected to the second movable bar,

[0077] - a motorized drive device, the motorized drive device being configured to drive the screen while moving,

[0078] the motorized drive device comprising at least:

[0079] - an electromechanical actuator according to the invention and as mentioned above- above, the electromechanical actuator being configured to drive in motion the first moving bar, or the second moving bar, or the first moving bar and the second moving bar.

[0080] This occulting device has characteristics and advantages similar to those described above in relation to the method according to the invention.

[0081] According to another advantageous feature of the invention, the obscuring device further comprises:

[0082] - a first cord or a first chain,

[0083] - a second cord or a second chain,

[0084] - a third cord or a third chain,

[0085] - a fourth cord or a fourth chain,

[0086] - a first training arrangement, the first training arrangement being configured to cooperate with the first cord or the first chain,

[0087] - a second training arrangement, the second training arrangement being configured to cooperate with the second cord or the second chain,

[0088] - a third training arrangement, the third training arrangement being configured to cooperate with the third cord or the third chain, and

[0089] - a fourth training arrangement, the fourth training arrangement being configured to cooperate with the fourth cord or the fourth chain.

[0090] In addition, the electromechanical actuator is configured to drive in motion, on the one hand, the first movable bar by means of the first and second cords or chains and, on the other hand, the second movable bar by means of the third and fourth cords or chains.

[0091] Other features and advantages of the invention will become apparent from the following description, made with reference to the accompanying drawings, given by way of non-limiting examples and in which:

[0092] [Fig.1] [Fig.1] is a schematic perspective view of an installation comprising a blackout device according to an embodiment of the invention;

[0093] [Fig.2] [Fig.2] is a schematic perspective view of an actuator electromechanical of a motorized drive device of the occulting device illustrated in [Fig.1], where a cover has been removed;

[0094] [Fig.3] [Fig.3] is a block diagram of a process, conforming to a first example realization of the invention, control in operation of the electromechanical actuator illustrated in [Fig.2];

[0095] [Fig.4] [Fig.4] is a block diagram of a process, conforming to a second example of an embodiment of the invention, of the control during operation of the electromechanical actuator illustrated in [Fig. 2]; and

[0096] [Fig. 5] [Fig. 5] is a block diagram of a process, conforming to a third example of implementation of the invention, of control in operation of the electromechanical actuator illustrated in [Fig.2].

[0097] First, with reference to [Fig. 1], an installation 1 comprising a closing, shading, or solar protection device 3 according to an embodiment of the invention is described. This installation 1, installed in a building (not shown), has an opening (not shown) in which a window or door (not shown) is located. This installation 1 is equipped with a screen 2 belonging to the closing, shading, or solar protection device 3, in particular a motorized blind. The screen 2 is configured to at least partially obscure the opening in a wall of the building.

[0098] The closing, shading or sun protection device 3 is hereinafter referred to as the "shading device". The shading device 3 comprises the screen 2.

[0099] Here, the screen 2 can be formed, for example, from a pleated or honeycomb fabric or from blades that can be orientable.

[0100] The screen 2 comprises a first end 2a, in particular an upper end, and a second end 2b, in particular a lower end, the second end 2b being opposite the first end 2a.

[0101] A blind conforming to the embodiment of the invention is described with reference to [Fig.1].

[0102] The occultation device 3 comprises a first movable bar 8a, in particular an upper movable bar. The first end 2a of the screen 2 is connected to the first movable bar 8a.

[0103] The occulting device 3 further comprises a second movable bar 8b, in particular a lower movable bar. The second end 2b of the screen 2 is connected to the second movable bar 8b.

[0104] Thus, the screen 2 is positioned, in other words is configured to be deployed, between the first and second movable bars 8a, 8b. Depending on the relative position of the first and second movable bars 8a, 8b, the screen 2 is more or less deployed.

[0105] Here, the second movable bar 8b is identical to the first movable bar 8a.

[0106] In an alternative, not shown, the second movable bar 8b is different from the first movable bar 8a.

[0107] Advantageously, the blackout device 3 includes a motorized drive device 5. The motorized drive device 5 is configured to drive, in other words drives, the screen 2.

[0108] Advantageously, the occultation device 3 further comprises a housing 7.

[0109] Here, the motorized drive device 5 is mounted, in other words, is housed, in the housing 7, in particular in an assembled configuration of the occultation device 3.

[0110] More particularly, the housing 7 is mounted, in other words is configured to be mounted, in the upper part or above the opening, in particular in an assembled configuration of the shading device 3 in the installation 1. The housing 7 is generally called a rail and, more particularly, an upper rail.

[0111] Advantageously, the housing 7 comprises at least one lower wall 7a and two side walls 7b.

[0112] Here, each of the side walls 7b is connected to the lower wall 7a of the housing 7. In addition, each of the side walls 7b is perpendicular to the lower wall 7a of the housing 7.

[0113] In other words, the housing 7 has a "U" shaped section.

[0114] The housing 7 comprises a first end 7c and a second end 7d. The second end 7d is opposite the first end 7c.

[0115] The motorized drive device 5 includes at least one electromechanical actuator 11.

[0116] Here, the electromechanical actuator 11 is mounted, in other words is housed, inside the casing 7, in particular in the assembled configuration of the occulting device 3.

[0117] Advantageously, the electromechanical actuator 11 comprises a first end 1la and a second end 11b, the second end 11b being opposite to the first end lia.

[0118] Here, in installation 1, an upper limit position corresponds to a position in which the first moving bar 8a can no longer move upwards, particularly when approaching the housing 7. The upper limit position can be either predetermined or correspond to the first moving bar 8a being pressed against the housing 7. Furthermore, a lower limit position corresponds to a position in which the second moving bar 8b can no longer move downwards, particularly when moving away from the housing 7 or the first moving bar 8a. The lower limit position can be either predetermined or correspond to the first moving bar 8a being pressed against the housing 7. of the second mobile bar 8b against an opening threshold, i.e. to correspond to the complete unfolding of screen 2.

[0119] Advantageously, the motorized drive device 5 further comprises a first drive shaft 9a and a second drive shaft 9b. The electromechanical actuator 11 is configured to drive the first drive shaft 9a in rotation, so as to move the first movable bar 8a. Furthermore, the electromechanical actuator 11 is configured to drive the second drive shaft 9b in rotation, so as to move the second movable bar 8b.

[0120] Advantageously, the first and second drive shafts 9a, 9b are parallel to each other.

[0121] Here, the first and second drive shafts 9a, 9b are located on the same side of the electromechanical actuator 11, as illustrated in [Fig.1].

[0122] Advantageously, the occultation device 3 further comprises a first cord 4a, a second cord 4b, a third cord 4c and a fourth cord 4d.

[0123] Advantageously, the occulting device 3 further comprises a first drive arrangement 6a, a second drive arrangement 6b, a third drive arrangement 6c, and a fourth drive arrangement 6d. The first drive arrangement 6a is configured to cooperate, i.e., operates with the first cord 4a. The second drive arrangement 6b is configured to cooperate, i.e., operates with the second cord 4b. The third drive arrangement 6c is configured to cooperate, i.e., operates with the third cord 4c. Furthermore, the fourth drive arrangement 6d is configured to cooperate, i.e., operates with the fourth cord 4d.

[0124] Advantageously, the electromechanical actuator 11 is configured to drive, in other words, to move, the first movable bar 8a by means of the first and second cords 4a, 4b. Furthermore, the electromechanical actuator 11 is configured to drive, in other words, to move, the second movable bar 8b by means of the third and fourth cords 4c, 4d.

[0125] Advantageously, the first drive arrangement 6a is configured to wind and unwind, i.e., winds and unwinds, the first cord 4a. The second drive arrangement 6b is configured to wind and unwind, i.e., winds and unwinds, the second cord 4b. The third drive arrangement 6c is configured to wind and unwind, i.e., winds and unwinds, the third cord 4c. Furthermore, the fourth drive arrangement 6d is configured to wind and unwind, in other words winds and unwinds, the fourth cord 4d.

[0126] Thus, when the first and second cords 4a, 4b are wound by means of the first and second drive arrangements 6a, 6b, the first movable bar 8a is raised towards the housing 7. Furthermore, when the first and second cords 4a, 4b are unwound by means of the first and second drive arrangements 6a, 6b, the first movable bar 8a is lowered away from the housing 7.

[0127] Furthermore, when the third and fourth cords 4c, 4d are wound by means of the third and fourth drive arrangements 6c, 6d, the second movable bar 8b is raised towards the housing 7. Furthermore, when the third and fourth cords 4c, 4d are unwound by means of the third and fourth drive arrangements 6c, 6d, the second movable bar 8b is lowered away from the housing 7.

[0128] Advantageously, each of the first and second cords 4a, 4b is attached to the first movable bar 8a. Furthermore, each of the third and fourth cords 4c, 4d is attached to the second movable bar 8b.

[0129] Thus, the first, second, third and fourth cords 4a, 4b, 4c, 4d connect the first and second drive shafts 9a, 9b to the first and second moving bars 8a, 8b.

[0130] In this way, the first, second, third and fourth cords 4a, 4b, 4c, 4d support the screen 2.

[0131] Here, the third and fourth training arrangements 6c, 6d are respectively identical to the first and second training arrangements 6a, 6b.

[0132] The first, second, third and fourth drive arrangements 6a, 6b, 6c, 6d can also be called first, second, third and fourth winders.

[0133] Advantageously, the first, second, third and fourth drive arrangements 6a, 6b, 6c, 6d each include at least one pulley configured to wind or unwind one of the first, second, third and fourth cords 4a, 4b, 4c, 4d.

[0134] Advantageously, the first, second, third and fourth drive arrangements 6a, 6b, 6c, 6d are mounted, in other words are housed, inside the casing 7, in particular in the assembled configuration of the occulting device 3.

[0135] The drive device 5 is thus configured to drive, in other words, to drive, in particular in a vertical direction, the first and second movable bars 8a, 8b of the occulting device 3, by via the first, second, third and fourth cords 4a, 4b, 4c, 4d, by means of the electromechanical actuator 11.

[0136] Advantageously, the first and second movable bars 8a, 8b are parallel to each other, particularly in the assembled configuration of the occulting device 3. Furthermore, the first and second drive shafts 9a, 9b are parallel to the first and second movable bars 8a, 8b, particularly in the assembled configuration of the occulting device 3.

[0137] In an alternative, not shown, the first drive shaft 9a is coupled to the second moving bar 8b and the second drive shaft 9b is coupled to the first moving bar 8a, instead of the first drive shaft 9a being coupled to the first moving bar 8a and the second drive shaft 9b being coupled to the second moving bar 8b, as explained above.

[0138] Advantageously, the motorized drive device 5 and, more particularly, the electromechanical actuator 11 is controlled by a control unit. The control unit can be, for example, a local control unit 12 or a central control unit 13.

[0139] Advantageously, the local control unit 12 can be connected, by wired or wireless link, with the central control unit 13.

[0140] Advantageously, the central control unit 13 can control the local control unit 12, as well as other similar local control units distributed throughout the building.

[0141] The motorized drive device 5 is preferably configured to execute movement commands, including deployment or retraction, of the screen 2, which may be issued, in particular, by the local control unit 12 or by the central control unit 13.

[0142] Installation 1 comprises either the local control unit 12, or the central control unit 13, or the local control unit 12 and the central control unit 13.

[0143] The electromechanical actuator 11, belonging to the installation 1 and, more particularly, to the motorized drive device 5 of the occulting device 3 illustrated in [Fig.1], according to the embodiment of the invention, is now described in more detail with reference to [Fig.2].

[0144] The electromechanical actuator 11 includes an electric motor 16. The electric motor 16 is represented by its casing in [Fig.2], without details on its internal constituent elements.

[0145] Here, the electromechanical actuator 11 comprises a single electric motor 16.

[0146] Advantageously, the electric motor 16 of the electromechanical actuator 11 comprises a rotor 21 and a stator, not shown, positioned coaxially around an axis of rotation XI6.

[0147] Advantageously, the electric motor 16 of the electromechanical actuator 11 can be of the electronically commutated brushless type, also called "BLDC" (acronym for the Anglo-Saxon term BrushLess Direct Current) or "permanent magnet synchronous", or of the direct current type.

[0148] Advantageously, the rotor 21 of the electric motor 16 comprises a first end, not shown, i.e. a first output, and a second end 21b, i.e. a second output. The second end 21b is opposite the first end.

[0149] Control means for the electromechanical actuator 11, enabling the movement of the screen 2, include at least one control unit 15, in particular an electronic control unit, shown in [Fig.2].

[0150] Here, the electromechanical actuator 11 further comprises the control unit 15.

[0151] Alternatively, not shown, the control unit 15 is arranged outside of the electromechanical actuator 11 and, for example, is disposed inside the housing 7. In this case, the control unit 15 is electrically connected at least to the electric motor 16 via an electrical link.

[0152] The control unit 15 is capable of starting the electric motor 16 and, in particular, of enabling the supply of electrical energy to the electric motor 16.

[0153] Thus, the control unit 15 controls, in other words is configured to control, in particular, the electric motor 16, so as to deploy or fold the screen 2 and, more particularly, so as to raise or lower the first movable bar 8a and, consequently, the upper part of the screen 2, and so as to raise or lower the second movable bar 8b and, consequently, the lower part of the screen 2.

[0154] Advantageously, the control unit 15 includes hardware and / or software means.

[0155] By way of non-limiting example, the material means of the control unit 15 include at least one microcontroller 31.

[0156] Advantageously, the control unit 15 further comprises a first communication module 27, in particular for receiving control orders, the control orders being issued by an order transmitter, such as the local control unit 12 or the central control unit 13, these orders being intended to control the electromechanical actuator 11.

[0157] Advantageously, the first communication module 27 is of the wireless type. In particular, the first communication module 27 is configured to receive radio control commands.

[0158] As an alternative or in addition, the first communication module 27 can allow the reception of control orders transmitted by wired means.

[0159] Advantageously, the control unit 15, the local control unit 12 and / or the central control unit 13 can be in communication with a weather station, not shown, located inside the building or outside the building, including, in particular, one or more sensors that can be configured to determine, for example, a temperature, a brightness, or a wind speed, in the case where the weather station is located outside the building.

[0160] Advantageously, the control unit 15, the local control unit 12 and / or the central control unit 13 can also be in communication with a server 28, so as to control the motorized drive device 5 and, more particularly, the electromechanical actuator 11, according to data made available remotely via a communication network, in particular an Internet network that can be connected to the server 28.

[0161] The control unit 15 can be operated from the local control unit 12 or the central control unit 13. The local control unit 12 or the central control unit 13 is equipped with a control keypad. The control keypad includes one or more selection elements 14 and, optionally, one or more display elements 34.

[0162] By way of non-limiting examples, the selection elements may include pushbuttons and / or touch-sensitive keys. The display elements may include light-emitting diodes and / or a display, for example LCD (Liquid Crystal Display) or TFT (Thin Film Transistor). The selection and display elements may also be implemented using a touchscreen.

[0163] Advantageously, the local control unit 12 and / or the central control unit 13 further comprises at least one second communication module 36.

[0164] Thus, the second communication module 36 is configured to transmit, in other words, sends out, control orders, in particular by wireless means, for example radioelectric, or by wired means.

[0165] In addition, the second communication module 36 can also be configured to receive, in other words receives, command orders, in particular through the same means.

[0166] Advantageously, the second communication module 36 of the local control unit 12 or of the central control unit 13 is configured to communicate, in other words communicates, with the first communication module 27 of the control unit 15.

[0167] Thus, the second communication module 36 of the local control unit 12 or of the central control unit 13 exchanges control orders with the first communication module 27 of the control unit 15, either unidirectionally or bidirectionally.

[0168] Advantageously, the local control unit 12 is a control point, which may be fixed or portable. A fixed control point may be a control box intended to be fixed to the facade of a building wall or to the face of a fixed window or door frame. A portable control point may be a remote control, a smartphone, or a tablet.

[0169] Advantageously, the local control unit 12 or the central control unit 13 further includes a controller 35.

[0170] The motorized drive device 5, in particular the control unit 15, is preferably configured to execute command commands for movement, in particular for retraction and deployment, of the screen 2. These command commands can be issued, in particular, by the local control unit 12 or by the central control unit 13.

[0171] The motorized drive device 5 can be controlled by the user, for example by receiving a command order corresponding to a press on the or one of the selection elements 14 of the local control unit 12 or of the central control unit 13.

[0172] Advantageously, installation 1 further comprises at least one sensor 40.

[0173] As an addition or alternative, sensor 40 can be integrated into the station meteorological.

[0174] Advantageously, the sensor 40 includes at least one second communication module 36, such as that described with reference to the local control unit 12 or the central control unit 13. In addition, the second communication module 36 of the sensor 40 is configured to communicate, that is to say, communicates, with the first communication module 27 of the control unit 15.

[0175] Advantageously, the sensor 40 can be, for example, an illuminance sensor, a temperature sensor, a humidity sensor or a wind sensor.

[0176] Thus, the motorized drive device 5 can also be controlled automatically by receiving a control order corresponding to at least one signal from the sensor 40.

[0177] In addition or alternatively, the motorized drive device 5 can also be automatically controlled by receiving a command order corresponding to at least one signal from a clock, not shown, of the control unit 15, in particular the microcontroller 31.

[0178] In addition or alternatively, the sensor 40 and / or the clock can be integrated into the local control unit 12 or the central control unit 13.

[0179] Advantageously, the electromechanical actuator 11 further comprises a housing 17, in particular of parallelepiped shape.

[0180] Advantageously, the electric motor 16 is mounted, in other words is housed, inside the casing 17, particularly in an assembled configuration of the electromechanical actuator 11.

[0181] Advantageously, the housing 17 comprises a first end 17a and a second end 17b, the second end 17b being opposite the first end 17a.

[0182] The first end 17a of the housing 17 is oriented towards the side of the first end 1la of the electromechanical actuator 11, while the second end 17b of the housing 17 is oriented towards the side of the second end 11b of the electromechanical actuator 11.

[0183] The viewing angles of figures 1 and 2 are opposite.

[0184] Here, the housing 17 is made of a plastic material.

[0185] The material of the housing is not limiting and may be different. In particular, it may be a metallic material.

[0186] Advantageously, the housing 17 comprises a base 17c and a cover 17d, which is shown only in [Fig. 1]. Furthermore, the cover 17d is fixed, that is to say, is configured to be fixed, to the base 17c, by means of fastening elements, not shown, particularly in the assembled configuration of the electromechanical actuator 11.

[0187] Here, the fasteners are fixing screws, specifically six of them. The fixing screws pass through through holes, not shown, provided in the cover 17d and are screwed into screw holes 18 provided in the base 17c. The number of through holes and the number of screw holes are equal to the number of fixing screws. Only three screw holes 18 are visible in [Fig. 2].

[0188] The type and number of fasteners are not limiting and may vary. They may be, for example, elastic snap-fit ​​fasteners or a combination of different fasteners, including screw and elastic snap-fit ​​fasteners.

[0189] Here, the control unit 15 comprises a first electronic card 30a and a second electronic card 30b.

[0190] Advantageously, each of the first and second electronic cards 30a, 30b is mounted, in other words is housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0191] Advantageously, the first electronic board 30a is configured to control the electric motor 16. Furthermore, the second electronic board 30b is configured to, among other things, access parameter setting and / or configuration functions of the electromechanical actuator 11, by means of selection and, optionally, display devices, not shown. In addition, the second electronic board 30b is configured to allow the charging of a rechargeable battery 24.

[0192] Alternatively, not shown, the control unit 15 comprises a single electronic board. Advantageously, in this case, the single electronic board is mounted, that is to say, housed, inside the casing 17, particularly in the assembled configuration of the electromechanical actuator 11.

[0193] Advantageously, the electromechanical actuator 11 is supplied with electrical energy by an electrical power supply source 29.

[0194] Advantageously, the electrical power supply source 29 is constituted by the battery 24. The battery 24 is represented by its casing in [Fig.1], without details on its internal constituent elements.

[0195] Thus, the battery 24 is configured to supply electrical energy, in other words supplies electrical energy, to the electromechanical actuator 11 and, more particularly, to the electric motor 16, as well as to the control unit 15.

[0196] Advantageously, the battery 24 is mounted, in other words is housed, inside the casing 7, particularly in the assembled configuration of the occulting device 3.

[0197] Here, the motorized drive device 5 further includes the battery 24.

[0198] Alternatively, not shown, battery 24 is mounted, in other words is housed, in the housing 17, in particular in the assembled configuration of the electromechanical actuator 11, which itself is mounted inside the housing 7, in particular in the assembled configuration of the occulting device 3.

[0199] In another variant, not shown, the battery 24 is mounted outside the housing 7, in particular in the assembled configuration of the occulting device 3. In this case, the battery 24 can be fixed against one of the side walls 7b of the housing 7, in particular by means of at least one fixing element, such as, for example, at least one retaining bracket, while being disposed outside the housing 7.

[0200] Advantageously, the battery 24 comprises one or more electrical energy storage elements, not shown. The electrical energy storage elements may be, in particular, accumulators, in the case shown in the figures where the battery 24 is of the rechargeable type, or cells, in the case not shown where the battery 24 is not rechargeable and where the second electronic board 30b is not used to recharge it.

[0201] Advantageously, the control unit 15 includes charging elements configured to charge the rechargeable battery 24 from the energy Electrical power is supplied by an external power source, not shown. The charging elements include, at a minimum, an electrical connector, not shown. The external power source is configured to be electrically connected to the electrical connector via a power cable, not shown.

[0202] Advantageously, the external electrical power supply source is a charger, which can be plugged into a wall electrical outlet, so as to recharge the battery 24, from an electrical power supply network, in particular from the mains.

[0203] Alternatively, the external electrical power supply source can be an auxiliary battery or a photovoltaic panel.

[0204] Alternatively, not shown, the electrical power supply 29 consists of an electrical power supply network, in particular mains power or so-called "PoE" (acronym for the English term Power over Ethernet). In this case, the motorized drive device 5 further includes a transformer, in addition to or as a replacement for the battery 24.

[0205] Advantageously, the motorized drive device 5 further includes a power supply cable 37. In addition, the power supply cable 37 supplies electrical energy, in other words, is configured to supply electrical energy, to the electromechanical actuator 11 from the power supply source 29. In other words, the electromechanical actuator 11 is electrically connected to the power supply source 29 and, more particularly, to the battery 24 or the transformer, via the power supply cable 37.

[0206] Here, the power supply cable 37 includes an electrical connector 38, which is disposed at one of its ends, as illustrated in [Fig.1], to connect with an electrical connector 39 of the power supply source 29, in this case the battery 24.

[0207] In an alternative, not shown, the power supply cable 37 includes an electrical connector at each of its ends, on the one hand, to connect with an electrical connector 39 of the power supply 29 and, on the other hand, to connect with an electrical connector of the electromechanical actuator 11.

[0208] Alternatively, not shown, the power supply cable 37 is a flat cable, in other words a flat cable, equipped with electrical connectors, in particular of the RJ45 type (acronym for the Anglo-Saxon term "Registered Jack"), in the case where the electromechanical actuator 11 is supplied with electrical energy from the 24 battery or, possibly, from an electrical power supply network known as "PoE".

[0209] In an alternative, not shown, the power supply cable 37 is a cord, in the case where the electromechanical actuator 11 is supplied with electrical energy from a mains power supply network, which may have, for example, a supply voltage of 110 Volts or 230 Volts.

[0210] Advantageously, the electromechanical actuator 11 is located at the first end 7c of the housing 7. The battery 24 and / or the transformer is located at the second end 7d of the housing 7.

[0211] The electromechanical actuator 11 further comprises a first coupling element 20a, in other words a first output shaft, and a second coupling element 20b, in other words a second output shaft.

[0212] Thus, the electromechanical actuator 11 is a two-output electromechanical actuator.

[0213] Advantageously, the first and second coupling elements 20a, 20b are arranged at the first end 1la of the electromechanical actuator 11.

[0214] Thus, the two outputs of the electromechanical actuator 11 are arranged on the same side of the electromechanical actuator 11, in particular on the same side of the housing 17.

[0215] In addition, the first and second drive shafts 9a, 9b are arranged on the same side of the electromechanical actuator 11 as the first and second coupling elements 20a, 20b.

[0216] Advantageously, the first coupling element 20a is rotatable about a first axis of rotation Xa inside the housing 7. The second coupling element 20b is rotatable about a second axis of rotation Xb inside the housing 7. The first drive shaft 9a is fixed to the first coupling element 20a, which is rotatable about the first axis of rotation Xa, in particular at one end of the first coupling element 20a. Furthermore, the second drive shaft 9b is fixed to the second coupling element 20b, which is rotatable about the second axis of rotation Xb, in particular at one end of the second coupling element 20b.

[0217] Thus, the electric motor 16 is configured to drive in rotation, in other words drives in rotation, on the one hand, the first coupling element 20a, so as to drive in rotation the first drive shaft 9a, and, on the other hand, the second coupling element 20b, so as to drive in rotation the second drive shaft 9b.

[0218] Here, the first and second coupling elements 20a, 20b are arranged on the same side of the electric motor 16.

[0219] Here, the first and second coupling elements 20a, 20b are identical.

[0220] Advantageously, the first and second axes of rotation Xa, Xb are arranged in the same horizontal plane P. In this case, the plane P is parallel to the lower wall 7a of the housing 7.

[0221] In an alternative, not shown, the first and second axes of rotation Xa, Xb are arranged in the same vertical plane. In this case, the plane is perpendicular to the lower wall 7a of the housing 7.

[0222] In another variant, not shown, the first and second axes of rotation Xa, Xb are arranged in a staggered pattern along an oblique plane. In this case, the plane is inclined relative to the lower wall 7a of the housing 7 by a value between 0° and 90° or between 90° and 180°.

[0223] Regardless of the position of the first and second axes of rotation Xa, Xb relative to the housing 7, the first and second drive shafts 9a, 9b are arranged in the same arrangement as the first and second coupling elements 20a, 20b relative to the housing 7.

[0224] Advantageously, the electromechanical actuator 11 further comprises a first reducer 19a and a second reducer 19b. Each of the first and second reducers 19a, 19b is represented by its housing in [Fig.2], in particular by means of a housing 48 common to the first and second reducers 19a, 19b, without details on its internal constituent elements.

[0225] Each of the first and second reducers 19a, 19b comprises at least one reduction stage. The reduction stage may be, for example, an epicyclic gear train.

[0226] The type and number of reduction stages of each of the first and second reducers are not limiting. The number of reduction stages may be, for example, three, but also two or four.

[0227] Advantageously, the first reducer 19a is configured to transmit, in other words, drives, a motion generated by the electric motor 16 to the first coupling element 20a and, consequently, to the first drive shaft 9a. Furthermore, the second reducer 19b is configured to transmit a motion generated by the electric motor 16 to the second coupling element 20b and, consequently, to the second drive shaft 9b.

[0228] Each of the first and second reducers 19a, 19b comprises an input tree and an output tree, not shown.

[0229] Here, the input shaft of each of the first and second reducers 19a, 19b is a shaft of a solar pinion of a first stage of reduction.

[0230] Advantageously, the input shaft of each of the first and second reducers 19a, 19b has a non-circular cross-section.

[0231] Here, the input shaft of each of the first and second reducers 19a, 19b includes a flat.

[0232] The number of flats on the input shaft of each of the first and second reducers is not limited and may be different. It may, for example, be two or more.

[0233] Advantageously, the first and second reducers 19a, 19b are mounted, in other words are housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0234] Here, the first and second reducers 19a, 19b are identical.

[0235] The electromechanical actuator 11 further comprises a first clutch 23a and a second clutch 23b.

[0236] Advantageously, each of the first and second clutches 23a, 23b is of the monostable type.

[0237] In an alternative, not shown, each of the first and second clutches 23a, 23b is of the bistable type.

[0238] Here, each of the first and second clutches 23a, 23b is a friction clutch, in other words, by adhesion.

[0239] Advantageously, the first and second clutches 23a, 23b are mounted, in other words are housed, inside the casing 17, particularly in the assembled configuration of the electromechanical actuator 11.

[0240] Here, the first and second clutches 23a, 23b are identical.

[0241] The first clutch 23a is configured to be engaged or disengaged, in other words is engaged or disengaged, so as to connect or disconnect, at least in rotation, the first coupling element 20a and, consequently, the first drive shaft 9a with respect to the electric motor 16, in particular at the first end of the rotor 21 of the electric motor 16.

[0242] In addition, the second clutch 23b is configured to be engaged or disengaged, in other words is engaged or disengaged, so as to connect or disconnect, at least in rotation, the second coupling element 20b and, consequently, the second drive shaft 9b with respect to the electric motor 16, in particular at the first end of the rotor 21 of the electric motor 16.

[0243] Thus, each of the first and second clutches 23a, 23b is configured to be switched either into an engaged position or into a disengaged position.

[0244] Advantageously, each of the first and second clutches 23a, 23b comprises an input shaft 25 and an output shaft, not shown.

[0245] By "engaging", we mean the implementation of a clutch, at the level of each of the first and second clutches 23a, 23b, to mechanically couple its shaft input shaft 25 and its output shaft and transmit a rotational motion between this input shaft 25 and this output shaft.

[0246] By "disengaging", we mean the implementation of a disengagement, at the level of each of the first and second clutches 23a, 23b, to decouple its input shaft 25 and its output shaft and not transmit any movement between this input shaft 25 and this output shaft.

[0247] The control unit 15 commands, in other words is configured to control, each of the first and second clutches 23a, 23b, in particular the engagement and disengagement of each of the first and second clutches 23a, 23b.

[0248] Advantageously, at least a portion of the output shaft of each of the first and second clutches 23a, 23b is of non-circular cross-section.

[0249] Here, the output shaft of each of the first and second clutches 23a, 23b includes two flats, not shown.

[0250] The number of flats on the output shaft of each of the first and second clutches is not limited and may be different. It may, for example, be equal to one or strictly greater than two.

[0251] Advantageously, when the electric motor 16 is electrically activated and only one of the first and second clutches 23a, 23b is engaged, only one of the first and second coupling elements 20a, 20b and, consequently, only one of the first and second drive shafts 9a, 9b is driven in rotation by the electric motor 16. Furthermore, when the electric motor 16 is electrically activated and the first and second clutches 23a, 23b are engaged, the first and second coupling elements 20a, 20b and, consequently, the first and second drive shafts 9a, 9b are driven in rotation by the electric motor 16.

[0252] Thus, the first clutch 23a enables a first transmission, in other words a first kinematic, or mechanical, connection, between the electric motor 16 and the first coupling element 20a and, consequently, the first drive shaft 9a. Furthermore, the second clutch 23b enables a second transmission, in other words a second kinematic, or mechanical, connection, between the electric motor 16 and the second coupling element 20b and, consequently, the second drive shaft 9b.

[0253] Advantageously, the first reducer 19a is connected, or is configured to be connected, to the rotor 21 of the electric motor 16, via the first clutch 23a, particularly in the assembled configuration of the electromechanical actuator 11. Furthermore, the second reducer 19b is connected, or is configured to be connected, to the rotor 21 of the electric motor 16, via the second clutch 23b, particularly in the assembled configuration of the electromechanical actuator 11.

[0254] Advantageously, the first clutch 23a comprises a first housing 49a. Similarly, the second clutch 23b comprises a second housing 49b, which is distinct from the first housing 49a of the first clutch 23a.

[0255] Alternatively, not shown, the first and second clutches 23a, 23b include a common housing.

[0256] Advantageously, the electromechanical actuator 11 further comprises a first brake and a second brake, not shown.

[0257] By way of non-limiting examples, each of the first and second brakes may be a spring brake, a cam brake, a magnetic brake or an electromagnetic brake.

[0258] Advantageously, the first brake is configured to brake and / or to block in rotation, in other words brakes and / or blocks in rotation, the first coupling element 20a and, consequently, the first drive shaft 9a, so as to regulate the speed of movement of the first movable bar 8a, during a movement of the screen 2, and to hold the first movable bar 8a in position, when the electromechanical actuator 11 is electrically deactivated and / or when the first clutch 23a is disengaged.In addition, the second brake is configured to brake and / or block in rotation, in other words brakes and / or blocks in rotation, the second coupling element 20b and, consequently, the second drive shaft 9b, so as to respectively regulate the speed of movement of the second movable bar 8b, during a movement of the screen 2, and to hold the second movable bar 8b in position, when the electromechanical actuator 11 is electrically deactivated and / or when the second clutch 23b is disengaged.

[0259] Here, the first brake is configured to be disposed, in other words, is positioned, particularly in the assembled configuration of the electromechanical actuator 11, between the first reducer 19a and the first coupling element 20a, in other words, at the output of the first reducer 19a. Furthermore, the second brake is configured to be disposed, in other words, is positioned, particularly in the assembled configuration of the electromechanical actuator 11, between the second reducer 19b and the second coupling element 20b, in other words, at the output of the second reducer 19b.

[0260] In an alternative, not shown, each of the first and second brakes is respectively configured to be arranged, in other words, is respectively arranged, in particular in the assembled configuration of the electromechanical actuator 11:

[0261] - between two reduction stages of the first reducer 19a, or between two stages of reduction of the second reducer 19b, or

[0262] - between the first clutch 23a and the first reducer 19a, in other words at the output of the first clutch 23a, or between the second clutch 23b and the second reducer 19b, in other words at the output of the second clutch 23b.

[0263] Advantageously, the first and second brakes are mounted, in other words are housed, inside the casing 17, particularly in the assembled configuration of the electromechanical actuator 11.

[0264] Here, the first and second brakes are identical.

[0265] Advantageously, the electromechanical actuator 11 further includes a device, not shown, for detecting end of travel and / or obstacle, which may be mechanical or electronic.

[0266] Advantageously, the end-of-travel and / or obstacle detection device of the electromechanical actuator 11 is implemented by means of the microcontroller 31 of the control unit 15 and, in particular, by means of an algorithm implemented by this microcontroller 31.

[0267] Advantageously, the end-of-travel and / or obstacle detection device of the electromechanical actuator 11 is implemented by means of a measurement of a current flowing through the electric motor 16.

[0268] The electromechanical actuator 11 further comprises a first position detection device 32a and a second position detection device 32b. Each of the first and second position detection devices 32a, 32b is represented by its envelope in [Fig.2], without details of its internal constituent elements.

[0269] Advantageously, the first and second position detection devices 32a, 32b are mounted, in other words are housed, inside the casing 17, particularly in the assembled configuration of the electromechanical actuator 11.

[0270] Advantageously, the first position detection device 32a is housed inside a first housing 50a. Similarly, the second position detection device 32b is housed inside a second housing 50b, which is separate from the first housing 50a of the first position detection device 32a.

[0271] Alternatively, not shown, the first position detection device 32a and the first clutch 23a are housed within the same housing. Similarly, the second position detection device 32b and the second clutch 23b are housed within the same housing.

[0272] Each of the first and second position detection devices 32a, 32b is configured to cooperate, in other words, cooperates, with the control unit 15. In addition, each of the first and second position detection devices 32a, 32b is configured to, in cooperation with the control unit 15, determine respectively a position, which can be called "current", of the first coupling element 20a or of the second coupling element 20b and, consequently, of the first drive shaft 9a or of the second drive shaft 9b and of the first movable bar 8a or of the second movable bar 8b.

[0273] Advantageously, the control unit 15 is configured to monitor at least one signal from each of the first and second position detection devices 32a, 32b at a predetermined frequency, in particular depending on the position of the first moving bar 8a or the second moving bar 8b.

[0274] Each of the first and second position detection devices 32a, 32b is of the magnetic type.

[0275] Each of the first and second position detection devices 32a, 32b comprises an encoder wheel, not shown, and one or more position detection sensors, not shown, in this case angular, of the encoder wheel, in particular one or more Hall effect sensors.

[0276] In one embodiment, each of the first and second position detection devices 32a, 32b comprises two sensors.

[0277] The number of sensors in each position detection device is not limited and may vary. It may be, for example, one or three.

[0278] The encoder wheel of each of the first and second position detection devices 32a, 32b is connected to the output shaft of the first clutch 23a or the second clutch 23b.

[0279] Thus, each of the first and second position detection devices 32a, 32b makes it possible respectively to determine the number of revolutions made by the output shaft of the first clutch 23a or of the second clutch 23b.

[0280] Advantageously, the sensor or each sensor of the first and second position detection devices 32a, 32b is assembled on an electronic board of the control unit 15, in particular on an additional electronic board, not shown.

[0281] In one embodiment, the electromechanical actuator 11 comprises a single additional electronic board on which is assembled the sensor or each sensor of the first and second position detection devices 32a, 32b.

[0282] Thus, the electromechanical actuator 11 includes an additional electronic card common to the first and second position detection devices 32a, 32b.

[0283] Alternatively, not shown, the electromechanical actuator 11 includes an additional electronic board for each of the first and second position detection devices 32a, 32b. In this case, the sensor(s) of each of the first and second position detection devices 32a, 32b are mounted respectively on one of the additional electronic boards. Thus, the electromechanical actuator 11 comprises two additional electronic boards.

[0284] Advantageously, the additional electronic card or cards are held in position, or are configured to be held in position, inside of the housing 17 by means of mounting elements, not shown, in particular in the assembled configuration of the electromechanical actuator 11.

[0285] In one embodiment, the mounting elements are studs provided in the housing 17, of which there are three.

[0286] The number and shape of the mounting elements are not limiting and may vary. For example, there may be two or more of them, and they may be made using snap-fit ​​or push-fit fasteners. These mounting elements may also be provided, for example, in each of the first and second housings of the first and second position detection devices.

[0287] Advantageously, the additional electronic card or cards is electrically connected to the electronic card or cards 30a, 30b by means of an electrical connecting cable, not shown.

[0288] Here, the electrical connecting cable extends between the first and second position sensing devices 32a, 32b, in particular the additional electronic board, and the control unit 15, in particular one of the electronic boards 30a, 30b, being disposed between the housing 17, in particular the base 17c of the housing 17, and the housings of other organs of the electromechanical actuator 11, such as, for example, the first and second housings 49a, 49b of the first and second clutches 23a, 23b and a housing 51 of a coupling device 33.

[0289] In this case, one or each of the first and second housings 50a, 50b of the first and second position detection devices 32a, 32b includes an opening, not shown, so as to allow the passage of the electrical link cable between the housing 17, in particular the base 17c of the housing 17, and the housings of other components of the electromechanical actuator 11.

[0290] Advantageously, the electrical connecting cable is a flat cable, that is to say, a flat cable, provided with electrical connectors. In addition, each additional electronic board includes at least one electrical connector, not shown. Similarly, one or both of the first and second electronic boards 30a, 30b include at least one electrical connector, not shown. The electrical connectors of the electrical connecting cable are plugged in, that is to say, configured to be plugged in, with the electrical connector(s) of each additional electronic board and with the electrical connector(s) of one or both of the first and second electronic boards 30a, 30b.

[0291] In an alternative, not shown, each of the first and second position detection devices 32a, 32b allows respectively to determine the number of turns made by the output shaft of the first reducer 19a or of the second reducer 19b.

[0292] In another variant, not shown, each of the first and second position detection devices 32a, 32b allows respectively to determine the number of turns made by the first coupling element 20a or the second coupling element 20b.

[0293] Each of the first and second position detection devices 32a, 32b also makes it possible respectively to determine the direction of rotation of the first coupling element 20a or the second coupling element 20b and / or to manage the end-of-stroke positions of the first movable bar 8a or the second movable bar 8b.

[0294] Here, the first and second position detection devices 32a, 32b are identical.

[0295] Here, the first position sensing device 32a is configured to be disposed, that is to say, is arranged, in particular in the assembled configuration of the electromechanical actuator 11, between the first clutch 23a and the first reducer 19a. Furthermore, the second position sensing device 32b is configured to be disposed, that is to say, is arranged, in particular in the assembled configuration of the electromechanical actuator 11, between the second clutch 23b and the second reducer 19b.

[0296] In an alternative, not shown, the first position sensing device 32a is configured to be disposed, that is to say, is arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the first clutch 23a. In addition, the second position sensing device 32b is configured to be disposed, that is to say, is arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the second clutch 23b.

[0297] In another variant, not shown, the first position sensing device 32a is configured to be disposed, that is to say, is arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the first reducer 19a. Furthermore, the second position sensing device 32b is configured to be disposed, that is to say, is arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the second reducer 19b.

[0298] Advantageously, the electromechanical actuator 11 further comprises a first torque transmission device 10a and a second torque transmission device 10b. Each of the first and second torque transmission devices 10a, 10b is shown in its envelope in [Fig. 2], without details of its internal components. The first torque transmission device 10a is connected, on the one hand, to the electric motor 16, in particular by means of the first reduction gear 19a and the first clutch 23a, and, on the other hand, to the first drive shaft 9a, in particular by means of the first coupling element 20a. In addition, the second torque transmission device 10b is connected, on the one hand, to the electric motor 16, in particular by means of the second reducer 19b and the second clutch 23b, and, on the other hand, to the second drive shaft 9b, in particular by means of the second coupling element 20b.

[0299] Here, the first reducer 19a, in particular the output shaft of the first reducer 19a, is coupled, that is to say, is configured to be coupled, in particular in the assembled configuration of the electromechanical actuator 11, with the first coupling element 20a via the first torque transmission device 10a. Furthermore, the second reducer 19b, in particular the output shaft of the second reducer 19b, is coupled, that is to say, is configured to be coupled, in particular in the assembled configuration of the electromechanical actuator 11, with the second coupling element 20b via the second torque transmission device 10b.

[0300] Advantageously, the first and second torque transmission devices 10a, 10b are mounted, in other words are housed, inside the casing 17, particularly in the assembled configuration of the electromechanical actuator 11.

[0301] Here, the first and second torque transmission devices 10a, 10b are identical.

[0302] In an alternative, not shown, the first and second torque transmission devices 10a, 10b are different.

[0303] Here, the first reducer 19a and the first torque transmission device 10a are housed inside the same housing 48 as the first and second reducers 19a, 19b. Similarly, the second reducer 19b and the second torque transmission device 10b are housed inside the same housing 48.

[0304] Advantageously, the electromechanical actuator 11 further comprises the coupling device 33. This coupling device 33 is represented by its housing in [Fig.2], without details on its internal constituent elements.

[0305] Advantageously, the coupling device 33 includes the housing 51.

[0306] Advantageously, the coupling device 33 comprises a plurality of pinions, not shown, in particular four in number.

[0307] The number of gears in the coupling device is not limited and may be different, preferably even. It may be, for example, two or six.

[0308] Advantageously, the coupling device 33 further comprises an input shaft, which is connected to the first end of the rotor 21, and two output shafts, which are respectively connected to the input shaft 25 of the first clutch 23a and to the input shaft 25 of the second clutch 23b.

[0309] Advantageously, the sprockets are configured to be disposed, otherwise are disposed, between the input shaft and the output shafts of the coupling device 33, particularly in an assembled configuration of the coupling device 33.

[0310] Here, the input shaft and one of the output shafts of the coupling device 33 are connected by one of the gears. In addition, the input shaft and the other output shaft of the coupling device 33 are connected by the set of gears.

[0311] Here, the coupling device 33 is mounted, in other words is housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0312] Here, the coupling device 33 is disposed between the electric motor 16, in particular the first end of the rotor 21 of the electric motor 16, and the first and second clutches 23a, 23b, in particular the input shaft 25 of each of the first and second clutches 23a, 23b.

[0313] In an alternative, not shown, the coupling device 33 is mounted, in other words is housed, in particular in the assembled configuration of the occulting device 3, inside the housing 7, while being disposed outside the casing 17. In this case, the coupling device 33 can be disposed at the second end 7d of the housing 7.

[0314] Advantageously, the coupling device 33 has a ratio of one, that is to say, neither reduction nor amplification of a rotational speed of the rotor 21 of the electric motor 16.

[0315] Advantageously, the housings of the various components of the electromechanical actuator 11, in particular the housing 51 of the coupling device 33, the first and second housings 49a, 49b of the first and second clutches 23a, 23b, the first and second housings 50a, 50b of the first and second position detection devices 32a, 32b and the housing 48 of the first and second reducers 19a, 19b and of the first and second torque transmission devices 10a, 10b, are assembled together by means of fastening elements, in particular by elastic snap-fit.

[0316] Advantageously, a first set 22 of a first part of the members 10a, 10b, 15, 16, 19a, 19b, 20a, 20b, 23a, 23b, 32a, 32b of the electromechanical actuator 11 are aligned along a first axis of rotation X22 and a second set 26 of a second part of the members 10a, 10b, 15, 16, 19a, 19b, 20a, 20b, 23a, 23b, 32a, 32b of the electromechanical actuator 11 are aligned along a second axis of rotation X26. In addition, the first and second axes of rotation X22, X26 are parallel.

[0317] Advantageously, the first assembly 22 comprises the first clutch 23a, the first position detection device 32a, the first reducer 19a, the first brake and the first coupling element 20a. In addition, the second set 26 includes the second clutch 23b, the second position detection device 32b, the second reducer 19b, the second brake and the second coupling element 20b.

[0318] Here, the electric motor 16 is an integral part of the first assembly 22 and is also aligned along the first axis of rotation X22. In other words, the axes of rotation XI6, X22 coincide.

[0319] In an alternative, not shown, the electric motor 16 is an integral part of the second assembly 26 and is also aligned along the second axis of rotation X26.

[0320] Alternatively, not shown, the first end of the rotor 21 of the electric motor 16 is directly connected to the first clutch 23a. In addition, the first end of the rotor 21 of the electric motor 16 is connected to the second clutch 23b via the coupling device 33.

[0321] In an alternative, not shown, the coupling device 33 comprises an input shaft, which is connected to the second end 21b of the rotor 21, and an output shaft, which is connected to the input shaft 25 of one of the first and second clutches 23a, 23b. The first end of the rotor 21 of the electric motor 16 is directly connected to the first clutch 23a. In addition, the second end 21b of the rotor 21 of the electric motor 16 is connected to the second clutch 23b via the coupling device 33. In this case, the electromechanical actuator 11 may further comprise a connecting shaft.Furthermore, particularly in the assembled configuration of the electromechanical actuator 11, the connecting shaft is coupled, or rather configured to be coupled, on the one hand, to the coupling device 33, in particular to the output shaft of the coupling device 33, and, on the other hand, to the second clutch 23b, in particular to the input shaft 25 of the second clutch 23b. Advantageously, the connecting shaft is a rigid shaft. Advantageously, the electromechanical actuator 11 further comprises at least one first universal joint and one second universal joint. The coupling device 33 is assembled, particularly in the assembled configuration of the electromechanical actuator 11, with the connecting shaft by means of the first universal joint. In addition, the second clutch 23b is assembled, in particular in the assembled configuration of the electromechanical actuator 11, with the connecting shaft by means of the second cardan joint.Thus, the first and second cardan joints ensure torque transmission between the coupling device 33 and the second clutch 23b via the connecting shaft, while accommodating positioning variations between the output shaft of the coupling device 33 and the input shaft 25 of the second clutch 23b. Advantageously, along the second axis. of rotation X26, at least a part of the control unit 15 is disposed between the coupling device 33 and the second clutch 23b, in particular in the assembled configuration of the electromechanical actuator 11. In addition, the connecting shaft extends, along the second axis of rotation X26, through an area of ​​the electromechanical actuator 11 comprising the control unit 15. This area of ​​the electromechanical actuator 11 is defined, along the second axis of rotation X26, between the coupling device 33 and the second clutch 23b.

[0322] Motion generated by the electric motor 16 is transmitted to the first drive shaft 9a, via the first clutch 23a, the first reduction gear 19a, and the first coupling element 20a, if the first clutch 23a is in the engaged position. This same motion generated by the electric motor 16 is also transmitted to the second drive shaft 9b, via the coupling device 33, the second clutch 23b, the second reduction gear 19a, and the second coupling element 20a, if the second clutch 23b is in the engaged position.

[0323] Thus the electromechanical actuator 11 allows, with the help of this single electric motor 16 and the control unit 15, to drive the screen 2 according to several possibilities.

[0324] When the first and second clutches 23a, 23b are in the engaged position and the electric motor 16 is electrically activated, the motion generated by the electric motor 16 is transmitted to the first and second coupling elements 20a, 20b and then to the first and second drive shafts 9a, 9b, which are then driven in rotation respectively around the first and second axes of rotation Xa, Xb. In this case, the first and second movable bars 8a, 8b simultaneously perform the same vertical movement. This allows the position of a blackout zone in the opening to be selected.

[0325] When only the first clutch 23a is in the engaged position and the electric motor 16 is electrically activated, the movement generated by the electric motor 16 is transmitted only to the first coupling element 20a and then to the first drive shaft 9a. In this case, only the first movable bar 8a moves vertically, while the second movable bar 8b remains in position, i.e., is stationary. Thus, it is the height of the shading area that is changed relative to the opening.

[0326] Similarly, when only the second clutch 23b is in the engaged position and the electric motor 16 is electrically activated, the motion generated by the electric motor 16 is transmitted only to the second coupling element 20b and then to the second drive shaft 9b. In this case, only the second movable bar 8b moves vertically, while the first bar Mobile 8a remains in position, in other words, is stationary. Thus, it is the height of the occultation zone that is modified relative to the opening.

[0327] The first and second movable bars 8a, 8b can therefore be moved vertically by the electromechanical actuator 11 separately or simultaneously.

[0328] Advantageously, the electromechanical actuator 11 further comprises at least one coupling member. The coupling member or members are configured to mechanically connect or couple, that is, mechanically connect or couple, a first transmission shaft to a second transmission shaft. The first transmission shaft is configured to be driven in rotation, that is, is driven in rotation, by the electric motor 16.

[0329] Here, the electromechanical actuator 11 comprises a first coupling member, not shown, and a second coupling member, also not shown.

[0330] Here, the first transmission shaft of the first coupling member is the output shaft of the first clutch 23a and the second transmission shaft is the input shaft of the first reducer 19a. Similarly, the first transmission shaft of the second coupling member is the output shaft of the second clutch 23b and the second transmission shaft is the input shaft of the second reducer 19b.

[0331] In an alternative, not shown, the first transmission shaft is the first end of the rotor 21, respectively the second end 21b of the rotor 21, and the second transmission shaft is either the input shaft of the first reducer 19a, respectively of the second reducer 19b, or the input shaft 25 of the first clutch 23a, respectively of the second clutch 23b.

[0332] In another variant, not shown, the first transmission shaft is the output shaft of the first reducer 19a, respectively of the second reducer 19b, and the second transmission shaft is either the first end of the first coupling element 20a, respectively the first end of the second coupling element 20b, or the first end of the first torque transmission device 10a, respectively the first end of the second torque transmission device 10b.

[0333] In one embodiment, the first coupling member and the second coupling member are identical.

[0334] Advantageously, the first and second coupling members are mounted, in other words are housed, inside the casing 17, particularly in the assembled configuration of the electromechanical actuator 11.

[0335] The control unit 15 further comprises at least one time counting device 4L

[0336] Advantageously, the time counting device 41 is an integral part of the microcontroller 31.

[0337] With reference to [Fig.3], we now describe the first example of an implementation of a method for controlling the electromechanical actuator 11, shown in [Fig.2], according to the invention.

[0338] The method includes a first control step E20 of the first and second clutches 23a, 23b, from the control unit 15, either according to a first setpoint CONS1, or according to a second setpoint CONS2, or according to a third setpoint CONS3.

[0339] When the first CONSI setpoint is selected, only the first clutch 23a is engaged, to drive only the first coupling element 20a in rotation.

[0340] When the second setpoint CONS2 is selected, only the second clutch 23b is engaged, to drive only the second coupling element 20b in rotation.

[0341] When the third setpoint CONS3 is selected, the first and second clutches 23a, 23b are engaged at the same time to drive the first and second coupling elements 20a, 20b in rotation simultaneously.

[0342] Advantageously, the first control step E20 includes a substep E21 of determining the setpoint selected from among the first, second and third setpoints CONS1, CONS2, CONS3.

[0343] The method further comprises a second control step E30 of the electric motor 16, from the control unit 15, the second control step E30 consisting of electrically activating the electric motor 16.

[0344] Here, the second command step E30 is implemented after the first command step E20.

[0345] Alternatively, the first and second command steps E20, E30 are implemented simultaneously.

[0346] Advantageously, the method further comprises, prior to the first control step E20 and the second control step E30, a reception step E10, by the first communication module 27 of the control unit 15, of a control order OC, coming from the second communication module 36 of the local control unit 12, the central control unit 13 or the sensor 40. The control order OC comprises at least the first setpoint CONS1, the second setpoint CONS2 or the third setpoint CONS3.

[0347] The method further includes a triggering step E40 of the time counting device 41 during a predetermined time period T. The triggering step E40 is implemented simultaneously with the second control step E30.

[0348] In other words, the start of the triggering step E40 and the start of the second control step E30 are concomitant, in other words implemented at the same instant.

[0349] Here and in no way limitingly, the predetermined time period T is on the order of five hundred milliseconds (500 ms).

[0350] Advantageously, the triggering step E40 is implemented by means of the control unit 15, in particular the microcontroller 31.

[0351] The method further comprises, following the elapsed time period T, - a first reading step E50 of a first value VI, detected by the first position detection device 32a, in other words determined by the first position detection device 32a, which is representative of a current position of the first coupling element 20a,

[0352] or - a second reading step E60 of a second value V2, detected by the second position detection device 32b, in other words determined by the second position detection device 32b, which is representative of a current position of the second coupling element 20b.

[0353] Advantageously, each of the first and second reading stages E50, E60 is implemented by means of the control unit 15, in particular the microcontroller 31.

[0354] The first reading step E50 is implemented when the second setpoint CONS2 is selected during the first command step E20. The second reading step E60 is implemented when the first setpoint CONSI is selected during the first command step E20.

[0355] Here, the first value VI and the second value V2 correspond to a number of electrical pulses generated respectively by the first position detection device 32a and by the second position detection device 32b.

[0356] Advantageously, each of the first and second reading stages E50, E60 is also implemented by means of an analog / digital converter, not shown.

[0357] Here, the microcontroller 31 includes the analog-to-digital converter. In this case, the analog-to-digital converter is integrated into the microcontroller 31.

[0358] Alternatively, not shown, the microcontroller 31 is electrically connected to the analog-to-digital converter. In this case, the analog-to-digital converter is a separate element from the microcontroller 31.

[0359] Then, the process further comprises, - a first comparison step E70 of the first value VI, detected by the first position detection device 32a and read during the first reading step E50, against a first predetermined position threshold value SI, or - a second comparison step E80 of the second value V2, detected by the second position detection device 32b and read during the second reading step E60, against a second predetermined position threshold value S2.

[0360] Advantageously, the first comparison step E70 is implemented following the first reading step E50. Furthermore, the second comparison step E80 is implemented following the second reading step E60.

[0361] Advantageously, each of the first and second comparison steps E70, E80 is implemented by means of the control unit 15, in particular the microcontroller 31.

[0362] Here, the first comparison step E70 corresponds to a detection step, in other words, a determination step, of a possible disengagement fault of the first clutch 23a, in this case when the second setpoint CONS2 is selected, during the first control step E20. Furthermore, the second comparison step E80 corresponds to a detection step, in other words, a determination step, of a possible disengagement fault of the second clutch 23b, in this case when the first setpoint CONSI is selected, during the first control step E20.

[0363] The method further includes an electrical deactivation step E90 of the electric motor 16, which is implemented according to the setpoint CONS1, CONS2, CONS3 selected during the first control step E20, and according to the result: - of the first comparison step E70, if the first value VI, detected by the first detection device 32a and read during the first reading step E50, is different from a first target value Cl,

[0364] or - of the second comparison step E80, if the second value V2, detected by the second detection device 32b and read during the second reading step E60, is different from a second target value C2.

[0365] A value considered to be different from the first target value Cl is a value unexpected by the microcontroller 31 during the first comparison step E70 of the first value VI, detected by the first position detection device 32a and read during the first reading step E50, with respect to the first predetermined position threshold value SI. Furthermore, a value considered as being different from the second target value C2 is an unexpected value by the microcontroller 31 during the second comparison step E80 of the second value V2, detected by the second position detection device 32b and read during the second reading step E60, relative to the second predetermined position threshold value S2.

[0366] Thus, this method makes it possible to detect a malfunction, in particular a disengagement fault, of one of the first and second clutches 23a, 23b, according to a selected setpoint, in particular the first or second setpoint CONSI, CONS2 selected, during the first control step E20, to drive in rotation either only the first coupling element 20a, or only the second coupling element 20b.

[0367] In this way, the detection of the malfunction, in particular the disengagement fault, of one of the first and second clutches 23a, 23b is implemented by software via the control unit 15.

[0368] Furthermore, the implementation of this method allows the electromechanical actuator 11 to be devoid of detection sensors, in this case of disengagement detection sensors, for the first and second clutches 23a, 23b.

[0369] Consequently, the cost of obtaining the electromechanical actuator 11 is minimized.

[0370] Furthermore, the comparison of the first and second values ​​VI, V2, respectively detected by the first and second position detection devices 32a, 32b and read during the first and second reading steps E50, E60, with respect to the first and second predetermined position threshold values ​​SI, S2, respectively during the first and second comparison steps E70, E80, makes it possible to detect operating states of the first and second clutches 23a, 23b different from those expected in response to the first and second control steps E20, E30 and thus to guarantee the robustness of the process.

[0371] Advantageously, the first and second target values ​​Cl, C2 are identical.

[0372] Here, if the first CONSI setpoint is selected, during the first command step E20, then the second comparison step E80 corresponds to a step of determining whether the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is greater than or equal to the second predetermined position threshold value S2.

[0373] In other words, if the first setpoint CONSI is selected, during the first command step E20, the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is considered to be different from the second target value C2, when this second value V2 is greater than or equal to the second predetermined position threshold value S2.

[0374] Thus, if the first CONSI setpoint is selected, during the first control step E20, then the method makes it possible to detect a disengagement fault of the second clutch 23b in the case where the second value V2 is greater than or equal to the second predetermined position threshold value S2.

[0375] In this way, if the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is greater than or equal to the second predetermined position threshold value S2, then the second clutch 23b has a disengagement fault. Otherwise, the second clutch 23b is functional, in other words, it does not have a disengagement fault.

[0376] Here, if the second setpoint CONS2 is selected, during the first control step E20, then the first comparison step E70 corresponds to a step of determining whether the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is greater than or equal to the first predetermined position threshold value SI.

[0377] In other words, if the second setpoint CONS2 is selected, during the first control step E20, the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is considered to be different from the first target value Cl, when this first value VI is greater than or equal to the first predetermined position threshold value SI.

[0378] Thus, if the second setpoint CONS2 is selected, during the first control step E20, then the method makes it possible to detect a disengagement fault of the first clutch 23a in the case where the first value V1 is greater than or equal to the first predetermined position threshold value SI.

[0379] In this way, if the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is greater than or equal to the first predetermined position threshold value SI, then the first clutch 23a has a disengagement fault. Otherwise, the first clutch 23a is functional, in other words, it does not have a disengagement fault.

[0380] Here, if the first CONSI setpoint is selected, during the first command step E20, then only the second comparison step E80 is implemented.

[0381] Here, if the second setpoint CONS2 is selected, during the first command step E20, then only the first comparison step E70 is implemented.

[0382] Here, if the third setpoint CONS3 is selected, during the first command step E20, then neither of the first and second comparison steps E70, E80 is implemented.

[0383] Thus, if the third setpoint CONS3 is selected, during the first command step E20, it is not necessary to detect a disengagement fault of one of the first and second clutches 23a, 23b, since these are commanded to be engaged.

[0384] In this way, the first and second command steps E20, E30 are continued until the command order OC received, during the reception step E10, is executed, unless another malfunction is determined by the microcontroller 31 imposing an electrical deactivation of the electric motor 16.

[0385] Advantageously, if the third setpoint CONS3 is selected, during the first command step E20, then the trigger step E40 and, optionally, the first reading step E50 and the second reading step E60 are not implemented.

[0386] Advantageously, the method further comprises, following the electrical deactivation step E90 or simultaneously with the step of

[0387] or electrical deactivation E90, a signaling step E100 of a malfunction, in particular a disengagement fault, of one of the first and second clutches 23a, 23b.

[0388] Advantageously, the signaling step E100 is implemented by emitting an alert, a message or a light and / or sound ALARM signal, in particular from the local control unit 12, the central control unit 13 or a configuration or maintenance terminal, not shown.

[0389] Advantageously, the method further comprises a holding step El 10 of the second control step E30 of the electric motor 16, which is implemented according to the setpoint CONS1, CONS2, CONS3 selected during the first control step E20, and according to the result: - of the first comparison step E70, if the first value VI, detected by the first detection device 32a and read during the first reading step E50, is equal to the first target value Cl, - of the second comparison step E80, if the second value V2, detected by the second detection device 32b and read during the second reading step E60, is equal to the second target value C2.

[0390] A value considered to be equal to the first target value Cl is a value expected by the microcontroller 31 during the first comparison step E70 of the first value VI, detected by the first position detection device 32a and read during the first reading step E50, with respect to the first predetermined position threshold value SI. Furthermore, a value considered to be equal to the second target value C2 is a value expected by the microcontroller 31 during the second comparison step E80 of the second value V2, detected by the second position detection device 32b and read during the second reading stage E60, relative to the second predetermined position threshold value S2.

[0391] Here, if the first setpoint CONSI is selected, during the first control step E20, the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is considered to be equal to the second target value C2, when this second value V2 is strictly less than the second predetermined position threshold value S2. Furthermore, if the second setpoint CONS2 is selected, during the first control step E20, the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is considered to be equal to the first target value Cl, when this first value V1 is strictly less than the first predetermined position threshold value SI.

[0392] Advantageously, the first and second predetermined position threshold values ​​SI, S2 are identical.

[0393] The assignment of the same value to each of the first and second predetermined position threshold values ​​SI, S2 is due to the fact that the operation of each of the two clutches 23a, 23b is, in particular, identical and that the rotational drive of the first and second coupling elements 20a, 20b and, consequently, of the first and second drive shafts 9a, 9b are similar.

[0394] Here, each of the first and second predetermined position threshold values ​​SI, S2 corresponds to a predetermined number of electrical pulses.

[0395] The process implemented according to the first embodiment described above makes it possible to guarantee the safety of the shading device 3 by avoiding damage to the latter due to a failure to disengage one of the first and second clutches 23a, 23b, depending on the setpoint CONS1, CONS2, CONS3 selected, during the first control step E20.

[0396] In the second embodiment, shown in [Fig. 4], the steps analogous to those of the first embodiment bear the same references and function as explained above. The following mainly describes what distinguishes this second embodiment from the first.

[0397] We now describe, with reference to [Fig.4], the second example of an embodiment of the method of controlling the operation of the electromechanical actuator 11, shown in [Fig.2], according to the invention.

[0398] Here, the process further comprises, following the elapsed time period T, - a first reading step E50 of a first value VI, detected by the first position detection device 32a, in other words determined by the first position detection device 32a, which is representative of a current position of the first coupling element 20a,

[0399] or - a second reading step E60 of a second value V2, detected by the second position detection device 32b, in other words determined by the second position detection device 32b, which is representative of a current position of the second coupling element 20b,

[0400] or - both, a first reading step E50 of a first value VI, detected by the first position detection device 32a in other words determined by the first position detection device 32a, which is representative of a current position of the first coupling element 20a and a second reading step E60 of a second value V2, detected by the second position detection device 32b in other words determined by the second position detection device 32b, which is representative of a current position of the second coupling element 20b.

[0401] The first reading step E50 is implemented when the first setpoint CONSI is selected during the first command step E20. The second reading step E60 is implemented when the second setpoint CONS2 is selected during the first command step E20. The first and second reading steps E50 and E60 are implemented when the third setpoint CONS3 is selected during the first command step E20.

[0402] Then, the process further comprises, - a first comparison step E70 of the first value VI, detected by the first position detection device 32a and read during the first reading step E50, against a first predetermined position threshold value SI,

[0403] or - a second comparison step E80 of the second value V2, detected by the second position detection device 32b and read during the second reading step E60, against a second predetermined position threshold value S2,

[0404] or - both, a first comparison step E70 of the first value VI, detected by the first position detection device 32a and read during the first reading step E50, relative to a first predetermined position threshold value SI and a second comparison step E80 of the second value V2, detected by the second position detection device 32b and read during the second reading step E60, relative to a second predetermined position threshold value S2.

[0405] Advantageously, the first comparison step E70 is implemented following the first reading step E50. Furthermore, the second comparison step E80 is implemented following the second reading step E60.

[0406] Here, the first comparison step E70 corresponds to a detection step, in other words, a determination step, of a possible clutch fault of the first clutch 23a, specifically when the first setpoint CONSI is selected or the third setpoint CONS3 is selected, during the first control step E20. Furthermore, the second comparison step E80 corresponds to a detection step, in other words, a determination step, of a possible clutch fault of the second clutch 23b, specifically when the second setpoint CONS2 is selected or the third setpoint CONS3 is selected, during the first control step E20.

[0407] The method further includes an electrical deactivation step E90 of the electric motor 16, which is implemented according to the setpoint CONS1, CONS2, CONS3 selected during the first control step E20, and according to the result: - of the first comparison step E70, if the first value VI, detected by the first detection device 32a and read during the first reading step E50, is different from a first target value Cl,

[0408] or - of the second comparison step E80, if the second value V2, detected by the second detection device 32b and read during the second reading step E60, is different from a second target value C2,

[0409] or - of the first comparison step E70 and the second comparison step E80, if at least one of the first and second values ​​VI, V2, detected by one of the first and second position detection devices 32a, 32b and read during one of the first and second reading steps E50, E60, is different from a first or second target value Cl, C2.

[0410] A value considered to be different from the first target value Cl is a value unexpected by the microcontroller 31 during the first comparison step E70 of the first value VI, detected by the first position detection device 32a and read during the first reading step E50, with respect to the first predetermined position threshold value S2. In addition, a value considered to be different from the second target value C2 is an unexpected value by the microcontroller 31 during the second comparison step E80 of the second value V2, detected by the second position detection device 32b and read during the second reading step E60, with respect to the second predetermined position threshold value S2.

[0411] Thus, this method makes it possible to detect at least one malfunction, in particular a clutch malfunction, of at least one of the first and second clutches 23a, 23b, according to a setpoint selected, in particular the first, second or third setpoint CONS1, CONS2, CONS3 selected, during the first control step E20, to drive in rotation either only the first coupling element 20a, or only the second coupling element 20b, or the first and second coupling elements 20a, 20b simultaneously.

[0412] In this way, the detection of the malfunction or malfunctions, in particular the clutch malfunction or malfunctions, of at least one of the first and second clutches 23a, 23b is implemented by software via the control unit 15.

[0413] Furthermore, the implementation of this method allows the electromechanical actuator 11 to be devoid of detection sensors, in particular clutch detection sensors, for the first and second clutches 23a, 23b.

[0414] Consequently, the cost of obtaining the electromechanical actuator 11 is minimized.

[0415] Here, the method further comprises, following the electrical deactivation step E90 or simultaneously with the electrical deactivation step E90, a signaling step El00 of at least one malfunction, in particular a clutch fault, of at least one of the first and second clutches 23a, 23b.

[0416] Here, if the first setpoint CONSI is selected, during the first control step E20, then the first comparison step E70 corresponds to a step of determining that the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is strictly less than the first predetermined position threshold value SI.

[0417] In other words, if the first CONSI setpoint is selected, during the first control step E20, the first VI value, detected by the first position detection device 32a and read during the first reading step E50, is considered to be different from the first target value Cl, when this first VI value is strictly less than the first predetermined position threshold value SI.

[0418] Thus, if the first setpoint CONSI is selected, during the first control step E20, then the method makes it possible to detect a clutch fault of the first clutch 23a in the case where the first value V1 is strictly less than the first predetermined position threshold value SI.

[0419] In this way, if the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is strictly less than the first predetermined position threshold value SI, then the first clutch 23a has a clutch fault. Otherwise, the first clutch 23a is functional, in other words, it does not have a clutch fault.

[0420] Here, if the second setpoint CONS2 is selected, during the first control step E20, then the second comparison step E80 corresponds to a step of determining that the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is strictly less than the second predetermined position threshold value S2.

[0421] In other words, if the second setpoint CONS2 is selected, during the first control step E20, the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is considered to be different from the second target value C2, when this first value V2 is strictly less than the second predetermined position threshold value S2.

[0422] Thus, if the second setpoint CONS2 is selected, during the first control step E20, then the method makes it possible to detect a clutch fault of the second clutch 23b in the case where the second value V2 is strictly less than the second predetermined position threshold value S2.

[0423] In this way, if the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is strictly less than the second predetermined position threshold value S2, then the second clutch 23b has a clutch fault. Otherwise, the second clutch 23b is functional, in other words, it does not have a clutch fault.

[0424] Here, if the first CONSI setpoint is selected, during the first command step E20, then only the first comparison step E70 is implemented.

[0425] Here, if the second setpoint CONS2 is selected, during the first command step E20, then only the second comparison step E80 is implemented.

[0426] Here, if the third setpoint CONS3 is selected, during the first control step E20, then the first comparison step E70 corresponds to a step of determining that the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is strictly less than the first predetermined position threshold value SI and the second step The comparison E80 corresponds to a step of determining that the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is strictly less than the second predetermined position threshold value S2.

[0427] In other words, if the third setpoint CONS3 is selected, during the first control step E20, the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is considered to be different from the first target value Cl, when this first value V1 is strictly less than the first predetermined position threshold value SI. Furthermore, if the third setpoint CONS3 is selected, during the first control step E20, the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is considered to be different from the second target value C2, when this first value V2 is strictly less than the second predetermined position threshold value S2.

[0428] Thus, if the third setpoint CONS3 is selected, during the first control step E20, then the method makes it possible to detect a clutch fault of the first clutch 23a and / or a clutch fault of the second clutch 23b.

[0429] In this way, if the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is strictly less than the first predetermined position threshold value SI, then the first clutch 23a has a clutch fault, and / or if the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is strictly less than the second predetermined position threshold value S2, then the second clutch 23b has a clutch fault. Otherwise, the first and second clutches 23a, 23b are functional, in other words, they do not have a clutch fault.

[0430] Advantageously, the method further comprises a maintenance step El 10 of the second control step E30 of the electric motor 16, which is implemented according to the setpoint CONS1, CONS2, CONS3 selected during the first control step E20, and according to the result: - of the first comparison step E70, if the first value VI, detected by the first detection device 32a and read during the first reading step E50, is equal to the first target value Cl,

[0431] or - of the second comparison step E80, if the second value V2, detected by the second detection device 32b and read during the second reading step E60, is equal to the second target value C2,

[0432] or - of the first comparison step E70 and the second comparison step E80, if each of the first and second values ​​VI, V2, detected by the first and second position detection devices 32a, 32b and read during the first and second reading steps E50, E60, is equal to the first or second target value Cl, C2.

[0433] A value considered to be equal to the first target value Cl is a value expected by the microcontroller 31 during the first comparison step E70 of the first value VI, detected by the first position detection device 32a and read during the first reading step E50, with respect to the first predetermined position threshold value SI. Furthermore, a value considered to be equal to the second target value C2 is a value expected by the microcontroller 31 during the second comparison step E80 of the second value V2, detected by the second position detection device 32b and read during the second reading step E60, with respect to the second predetermined position threshold value S2.

[0434] Here, if the first setpoint CONSI is selected, during the first control step E20, the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is considered to be equal to the first target value Cl, when this first value V1 is greater than or equal to the first predetermined position threshold value SI. If the second setpoint CONS2 is selected, during the first control step E20, the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is considered to be equal to the second target value C2, when this second value V2 is greater than or equal to the second predetermined position threshold value S2.Furthermore, if the third setpoint CONS3 is selected, during the first command step E20, the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is considered to be equal to the first target value Cl, when this first value V1 is greater than or equal to the first predetermined position threshold value SI and the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is considered to be equal to the second target value C2, when this first value V2 is greater than or equal to the second predetermined position threshold value S2.

[0435] The method implemented according to the second embodiment described above makes it possible to ensure that the command order OC received during the first reception step E10 is executed correctly, while avoiding a failure to move of at least one of the first and second moving bars 8a, 8b due to a clutch fault of at least one of the first and second clutches 23a, 23b, depending on the setpoint selected CONSI, CONS2, CONS3, during the first command step E20.

[0436] In the third embodiment, shown in [Fig. 5], the steps analogous to those of the first and second embodiments bear the same references and function as explained above. What follows mainly describes what distinguishes this third embodiment from the preceding ones.

[0437] We now describe, with reference to [Fig.5], the third example of an embodiment of the method for controlling the operation of the electromechanical actuator 11, shown in [Fig.2], according to the invention.

[0438] The third embodiment is a combination of the first and second embodiments, so as to detect at least one malfunction, in particular a disengagement fault or a clutch fault, of at least one of the first and second clutches 23a, 23b, according to a selected setpoint, in particular the first, second or third selected setpoint, CONS1, CONS2, CONS3, to drive in rotation either only the first coupling element 20a, or only the second coupling element 20b, or the first and second coupling elements 20a, 20b simultaneously.

[0439] Here, the first comparison step E70 corresponds to a detection step, in other words a determination step, of a possible disengagement fault of the first clutch 23a, in this case when the second setpoint CONS2 is selected, during the first control step E20, or to a detection step, in other words a determination step, of a possible clutch fault of the first clutch 23a, in this case when the first setpoint CONSI is selected or the third setpoint CONS3 is selected, during the first control step E20.In addition, the second comparison step E80 corresponds to a detection step, in other words a determination step, of a possible disengagement fault of the second clutch 23b, in this case when the first setpoint CONSI is selected, during the first command step E20, or to a detection step, in other words a determination step, of a possible clutch fault of the second clutch 23b, in this case when the second setpoint CONS2 is selected or the third setpoint CONS3 is selected, during the first command step E20.

[0440] Here, if the first setpoint CONSI is selected, during the first control step E20, then the first comparison step E70 corresponds to a step of determining that the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is strictly less than the first predetermined position threshold value SI and the second comparison step E80 corresponds to a step of determining that the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is greater than or equal to the second predetermined position threshold value S2.

[0441] Thus, if the first CONSI setpoint is selected, during the first control step E20, then the method makes it possible to detect a clutch fault of the first clutch 23a and / or a disengagement fault of the second clutch 23b.

[0442] In this way, if the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is strictly less than the first predetermined position threshold value SI, then the first clutch 23a has a clutch fault. Otherwise, the first clutch 23a is functional, in other words, it does not have a clutch fault.

[0443] Furthermore, if the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is greater than or equal to the second predetermined position threshold value S2, then the second clutch 23b has a disengagement fault. Otherwise, the second clutch 23b is functional, i.e., it does not have a disengagement fault.

[0444] Here, if the second setpoint CONS2 is selected, during the first control step E20, then the first comparison step E70 corresponds to a step of determining that the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is greater than or equal to the first predetermined position threshold value SI and the second comparison step E80 corresponds to a step of determining that the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is strictly less than the second predetermined position threshold value S2.

[0445] Thus, if the second setpoint CONS2 is selected, during the first control step E20, then the process makes it possible to detect a disengagement fault of the first clutch 23a and / or a clutch fault of the second clutch 23b.

[0446] In this way, if the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is greater than or equal to the first predetermined position threshold value SI, then the first clutch 23a has a disengagement fault. Otherwise, the first clutch 23a is functional, that is, it does not have a disengagement fault. Furthermore, if the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is strictly less than the second predetermined position threshold value S2, then the second clutch 23b has a clutch fault. Otherwise, the second clutch 23b is functional, in other words, it does not have a clutch fault.

[0447] Here, if the first CONSI setpoint is selected, during the first command step E20, the first and second comparison steps E70, E80 are implemented.

[0448] Here, if the second setpoint CONS2 is selected, during the first command step E20, then the first and second comparison steps E70, E80 are implemented.

[0449] Here, if the third setpoint CONS3 is selected, during the first control step E20, then the first comparison step E70 corresponds to a step of determining that the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is strictly less than the first predetermined position threshold value SI and the second comparison step E80 corresponds to a step of determining that the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is strictly less than the second predetermined position threshold value S2.

[0450] Thus, if the third setpoint CONS3 is selected, during the first control step E20, then the method makes it possible to detect a clutch fault of the first clutch 23a and / or a clutch fault of the second clutch 23b.

[0451] In this way, if the first value VI, detected by the first position detection device 32a and read during the first reading step E50, is strictly less than the first predetermined position threshold value SI, then the first clutch 23a has a clutch fault, and / or if the second value V2, detected by the second position detection device 32b and read during the second reading step E60, is strictly less than the second predetermined position threshold value S2, then the second clutch 23b has a clutch fault. Otherwise, the first and second clutches 23a, 23b are functional, in other words, they do not have a clutch fault.

[0452] Thanks to the present invention, whatever the embodiment example, this method makes it possible to detect at least one malfunction of at least one of the first and second clutches, according to a setpoint selected to drive in rotation either only the first coupling element, or only the second coupling element, or the first and second coupling elements simultaneously.

[0453] Numerous modifications can be made to the embodiment examples described above without departing from the scope of the invention.

[0454] In an alternative, not shown, the first and second clutches 23a, 23b are different.

[0455] In an alternative, not shown, the first and second position detection devices 32a, 32b are different.

[0456] In an alternative, not shown, the first and second predetermined position threshold values ​​SI, S2 are different. Assigning a different value to each of the first and second predetermined position threshold values ​​SI, S2 is implemented in the case where the operation of each of the two clutches 23a, 23b is distinct.

[0457] In an alternative, not shown, the obscuring device 3 further comprises another screen. One end of the other screen is connected to the housing 7. The other end of the other screen is connected to the first movable bar 8a. Thus, the other screen is positioned, or rather configured to be deployed, between the housing 7 and the first movable bar 8a. Depending on the position of the first movable bar 8a relative to the housing 7, the other screen is more or less deployed.

[0458] In an alternative, not shown, the blackout device 3 comprises a number of movable bars greater than or equal to three, which can all be moved by means of the electromechanical actuator 11, respectively by means of a clutch and, optionally, a reducer, a torque transmission device, a position detection device and a brake.

[0459] Alternatively, and not shown, the first and second cords 4a, 4b, as well as the third and fourth cords 4c, 4d, in particular their ends, are fixed to a window or door frame or to a building wall, in particular by means of retaining elements. Thus, the shading device 3 may be without a housing, i.e., a rail, positioned at the top or above the opening. In this case, the retaining elements are configured to be fixed, i.e., are fixed, to the window or door frame or to the building wall by means of fixing screws, not shown. The fixing screws pass through holes provided in the retaining elements and are screwed either into plugs, not shown, housed in the window or door frame or in the building wall, or directly into the window or door frame or into the building wall.Furthermore, the lengths of the first, second, third, and fourth cords 4a, 4b, 4c, 4d are designed so that they remain permanently taut relative to the window or door structure or the building wall, thus allowing the first and second movable bars 8a, 8b to move along them. In this case, the motorized drive device 5, in particular the electromechanical actuator 11, is mounted, or rather housed, inside it. one of the movable bars 8a, 8b, in particular in the assembled configuration of the occultation device 3.

[0460] In another variant, not shown, the first, second, third and fourth cords 4a, 4b, 4c, 4d can be kept taut by means of one or more elastic return elements, such as, for example, one or more springs.

[0461] In another embodiment, the first and second drive shafts 9a, 9b are coaxial. In this case, the first and second drive shafts 9a, 9b are located on either side of the electromechanical actuator 11. That is to say, the first coupling element 20a is located at the first end 11a of the electromechanical actuator 11 and the second coupling element 20b is located at the second end 11b of the electromechanical actuator 11. Thus, the two outputs of the electromechanical actuator 11 are located on either side of the electromechanical actuator 11, in particular of the housing 17. Furthermore, the first and second drive shafts 9a, 9b are located on either side of the electromechanical actuator 11 in the same way as the first and second coupling elements 20a, 20b.

[0462] Alternatively, the electric motor 16 of the electromechanical actuator 11 may be of the asynchronous type.

[0463] Alternatively, and not shown, the electromechanical actuator 11 further comprises at least one other electric motor. Thus, the electromechanical actuator 11 comprises the electric motor 16, which may be called the first electric motor, and a second electric motor. These first and second electric motors may, in particular, be identical. In this case, the electromechanical actuator 11 lacks a coupling device 33.Thus, the first electric motor 16 is configured to drive, in other words, rotates, the first coupling element 20a, via the first clutch 23a and, optionally, the first reduction gear 19a and / or the first torque transmission device 10a, and the second electric motor is configured to drive, in other words, rotates, the second coupling element 20b, via the second clutch 23b and, optionally, the second reduction gear 19b and / or the second torque transmission device 10b. In this case, the first assembly 22 comprises the first electric motor 16, which is aligned along the first axis of rotation X22, and the second assembly 26 comprises the second electric motor, which is aligned along the second axis of rotation X26.

[0464] Regardless of the embodiment, one or each of the first, second, third and fourth cords 4a, 4b, 4c, 4d may be replaced by a chain.

[0465] Furthermore, the envisaged embodiments and variants can be combined to generate new embodiments of the invention, without departing from the scope of the invention.

Claims

1. Demands Method for controlling in operation an electromechanical actuator (11) for a blackout device (3), the electromechanical actuator (11) comprising at least: - an electric motor (16), - a first coupling element (20a), - a second coupling element (20b), - a first clutch (23a), the first clutch (23a) being engaged or disengaged, so as to lock or unlock, at least in rotation, the first coupling element (20a) with respect to the electric motor (16), - a second clutch (23b), the second clutch (23b) being engaged or disengaged, so as to lock or unlock, at least in rotation, the second coupling element (20b) with respect to the electric motor (16), - a control unit (15), the control unit (15) controlling the electric motor (16) and each of the first and second clutches (23a, 23b), - a first position detection device (32a), and - a second position detection device (32b), each of the first and second position detection devices (32a, 32b) being configured to, in cooperation with the control unit (15), determine respectively a position of the first coupling element (20a) or of the second coupling element (20b), the method comprising at least: - a first command step (E20) of the first and second clutches (23a, 23b), from the control unit (15), so as to engage at least one of the first and second clutches (23a, 23b) to drive in rotation either only the first coupling element (20a) by selection of a first setpoint (CONSI), or only the second coupling element (20b) by selection of a second setpoint (CONS2), or the first and second coupling elements (20a, 20b) simultaneously by selection of a third setpoint (CONS3), and - a second control step (E30) of the electric motor (16), from the control unit (15), the second control step (E30) consisting of electrically activating the electric motor (16), characterized in that the control unit (15) comprises at least one time counting device (41), and in that the process comprises at least: - a triggering step (E40) of the time counting device (41) during a predetermined time period (T), the triggering step (E40) being implemented simultaneously with the second control step (E30), - following the elapsed predetermined time period (T), - a first reading step (E50) of a first value (VI), detected by the first position detection device (32a), or a second reading step (E60) of a second value (V2), detected by the second position detection device (32b), or a first reading step (E50) of a first value (VI), detected by the first position detection device (32a), and a second reading step (E60) of a second value (V2), detected by the second position detection device (32b), then - a first comparison step (E70) of the first value (VI), detected by the first position detection device (32a), with respect to a first predetermined position threshold value (SI), or a second comparison step (E80) of the second value (V2), detected by the second position detection device (32b), with respect to a second predetermined position threshold value (S2), or a first comparison step (E70) of the first value (VI), detected by the first position detection device (32a), with respect to a first predetermined position threshold value (SI) and a second comparison step (E80) of the second value (V2), detected by the second position detection device (32b), with respect to a second predetermined position threshold value (S2), and that, depending on the setpoint (CONSI, C0NS2, C0NS3) selected during the first command step (E20), and depending on the result:

2. - of the first comparison step (E70), if the first value (VI), detected by the first detection device (32a), is different from a first target value (Cl), Or - of the second comparison step (E80), if the second value (V2), detected by the second detection device (32b), is different from a second target value (C2), Or - of the first comparison step (E70) and the second comparison step (E80), if at least one of the first and second values ​​(VI, V2), detected by the first and second position detection devices (32a, 32b), is different from a first or second target value (Cl, C2), then the method includes at least one electrical deactivation step (E90) of the electric motor (16). Method for controlling the operation of an electromechanical actuator (11) for a blackout device (3), according to claim 1, characterized in that, depending on the instruction (CONSI, CONS2, CONS3) selected during the first order step (E20), and depending on the result: - of the first comparison step (E70), if the first value (VI), detected by the first detection device (32a), is equal to the first target value (Cl), Or - of the second comparison step (E80), if the second value (V2), detected by the second detection device (32b), is equal to the second target value (C2), Or - of the first comparison step (E70) and the second comparison step (E80), if each of the first and second values ​​(VI, V2), detected by the first and second position detection devices (32a, 32b), is equal to the first or second target value (Cl, C2), then the process includes a maintenance step (El 10) of the second control step (E30) of the electric motor (16).

3. Method of controlling in operation an electromechanical actuator (11) for a blackout device (3) according to claim 1 or according to claim 2, characterized in that: - the first comparison step (E70) corresponds either to a step of determining a disengagement fault of the first clutch (23a) or to a step of determining a clutch fault of the first clutch (23a), or - the second comparison step (E80) corresponds either to a step of determining a disengagement fault of the second clutch (23b) or to a step of determining a clutch fault of the second clutch (23b).

4. A method for controlling the operation of an electromechanical actuator (11) for a blinding device (3) according to any one of claims 1 to 3, characterized in that if the first setpoint (CONSI) is selected, during the first control step (E20), then: - the second comparison step (E80) corresponds to a step of determining whether the second value (V2), detected by the second position detection device (32b), is greater than or equal to the second predetermined position threshold value (S2), or - the first comparison step (E70) corresponds to a step of determining whether the first value (V1), detected by the first position detection device (32a), is strictly less than the first predetermined position threshold value (SI), or - the first comparison step (E70) corresponds to a step of determining whether the first value (V1),detected by the first position detection device (32a), is strictly less than the first predetermined position threshold value (SI), and the second comparison step (E80) corresponds to a step of determining that the second value (V2), detected by the second position detection device (32b), is greater than or equal to the second predetermined position threshold value (S2).

5. A method for controlling the operation of an electromechanical actuator (11) for a blackout device (3) according to any one of claims 1 to 4, characterized in that if The second setpoint (CONS2) is selected during the first command step (E20), then: - the first comparison step (E70) corresponds to a step determining whether the first value (VI), detected by the first position detection device (32a), is greater than or equal to the first predetermined position threshold value (SI), or - the second comparison step (E80) corresponds to a step determining whether the second value (V2), detected by the second position detection device (32b), is strictly less than the second predetermined position threshold value (S2), or - the first comparison step (E70) corresponds to a step determining whether the first value (V1), detected by the first position detection device (32a),is greater than or equal to the first predetermined position threshold value (S1) and the second comparison step (E80) corresponds to a step of determining that the second value (V2), detected by the second position detection device (32b), is strictly less than the second predetermined position threshold value (S2).

6. A method for controlling an electromechanical actuator (11) for a blackout device (3) according to any one of claims 1 to 5, characterized in that if the third setpoint (CONS3) is selected, during the first control step (E20), then: - neither of the first and second comparison steps (E70, E80) is implemented, or - the first comparison step (E70) corresponds to a step of determining that the first value (V1), detected by the first position detection device (32a), is strictly less than the first predetermined position threshold value (SI) and the second comparison step (E80) corresponds to a step of determining that the second value (V2), detected by the second position detection device (32b), is strictly less than the second predetermined position threshold value (S2).

7. Method of controlling the operation of an electromechanical actuator (11) for a blackout device (3) according to any one of claims 1 to 6, characterized in that the first and second predetermined position threshold values ​​(SI, S2) are equal.

8. Electromechanical actuator (11) for a shutter device (3), the electromechanical actuator (11) comprising at least: - an electric motor (16), - a first coupling element (20a), - a second coupling element (20b), - a first clutch (23a), the first clutch (23a) being engaged or disengaged so as to lock or unlock, at least in rotation, the first coupling element (20a) with respect to the electric motor (16), - a second clutch (23b), the second clutch (23b) being engaged or disengaged so as to lock or unlock, at least in rotation, the second coupling element (20b) with respect to the electric motor (16), - a control unit (15), the control unit (15) controlling the electric motor (16) and each of the first and second clutches (23a, 23b), - a first position detection device (32a), and - a second position detection device (32b),each of the first and second position detection devices (32a, 32b) being configured to, in cooperation with the control unit (15), respectively determine a position of the first coupling element (20a) or of the second coupling element (20b), characterized in that the control unit (15) comprises at least one time counting device (41), and in that the control unit (15) is configured to implement the method according to any one of claims 1 to 7.

9. Obscuring device (3), the obscuring device (3) comprising at least: - a screen (2), the screen (2) comprising a first end (2a) and a second end (2b), the second end (2b) being opposite the first end (2a), - a first movable bar (8a), the first end (2a) of the screen (2) being connected to the first movable bar (8a), - a second movable bar (8b), the second end (2b) of the screen (2) being connected to the second movable bar (8b), - a motorized drive device (5), the motorized drive device (5) being configured to drive the screen (2) in movement, the motorized drive device (5) comprising at least: - an electromechanical actuator (11) according to claim 8, the electromechanical actuator (11) being configured to drive the first movable bar (8a), or the second movable bar (8b), or the first movable bar (8a) and the second movable bar (8b).

10. A blackout device (3) according to claim 9, characterized in that the blackout device (3) further comprises: - a first cord or a first chain (4a), - a second cord or a second chain (4b), - a third cord or a third chain (4c), - a fourth cord or a fourth chain (4d), - a first drive arrangement (6a), the first drive arrangement (6a) being configured to cooperate with the first cord or the first chain (4a), - a second drive arrangement (6b), the second drive arrangement (6b) being configured to cooperate with the second cord or the second chain (4b), - a third drive arrangement (6c), the third drive arrangement (6c) being configured to cooperate with the third cord or the third chain (4c), and - a fourth drive arrangement (6d),the fourth drive arrangement (6d) being configured to cooperate with the fourth cord or chain (4d), and in that the electromechanical actuator (11) is configured to drive in displacement, on the one hand, the first moving bar (8a) by means of the first and second cords or chains (4a, 4b) and, on the other hand, the second moving bar (8b) by means of the third and fourth cords or chains (4c, 4d).

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