EP3303752A1

EP3303752A1 - Method for configuring a motorised drive device for a home automation unit, and associated unit and motorised drive device

Info

Publication number: EP3303752A1
Application number: EP16720125.0A
Authority: EP
Inventors: Benjamin Desfossez; Cyril RIEU
Original assignee: Somfy Activites SA
Current assignee: Somfy Activites SA
Priority date: 2015-05-04
Filing date: 2016-05-03
Publication date: 2018-04-11
Anticipated expiration: 2036-05-03
Also published as: FR3035915B1; EP3303752B1; WO2016177737A1; US10196856B2; FR3035915A1; US20180171712A1

Abstract

The invention relates to a method for configuring a motorised drive device for a closure or solar protection unit, comprising at least the following steps: (E10) placing of the motorised drive device in a configuration mode; (E40) first movement of a screen towards its unwound position, by activation of the motorised drive device; (E50) automatic determination of a low end-of-travel position of the screen; (E80) movement of the screen towards its wound position, by activation of the motorised drive device; (E100) second movement of the screen towards its unwound position, by activation of the motorised drive device; and (E110) stopping of the motorised drive device at the low end-of-travel position of the screen determined during the automatic determination step (E50). The step comprising the automatic determination of the low end-of-travel position of the screen includes a sub-step (E500) for measuring the value of the electric current passing through the electric motor, performed by the measurement device, and a sub-step (E530) for determining a variation in the measured value.

Description

Method for configuring a motorized drive device of a home automation installation, motorized drive device and associated installation

The present invention relates to a method for configuring a motorized drive device of a home automation system for closing or sun protection, a motorized drive device for a home automation system for closing or sun protection, as well as a home automation system closing or sun protection incorporating such a motorized drive device.

In general, the present invention relates to the field of occultation devices comprising a motorized drive device moving a screen between at least a first position and a second position.

A motorized driving device comprises an electromechanical actuator of a movable closure, occultation or sun protection element such as a blind or any other equivalent equipment, hereafter called a screen.

Motorized drive devices for a home automation system for closing or sun protection are known. Such home automation installations include a concealment device. The concealment device comprises a winding tube, a screen and a load bar. A first end of the screen is attached to the winding tube. And a second end of the screen is attached to the load bar.

The motorized driving device comprises an electromechanical actuator for winding and unwinding the screen on the winding tube, between a wound position and an unwound position. The electromechanical actuator comprises an electric motor, an output shaft connected to the winding tube of the concealment device and an electronic control unit.

The electronic control unit comprises a device for measuring the rotational speed of a rotor of the electric motor.

During the configuration of the motorized drive device, the electronic control unit of the electromechanical actuator implements a step of automatic determination of the end positions of the screen.

The automatic determination of the end positions of the screen is implemented by analyzing the rotational speed variation of the rotor of the electric motor of the electromechanical actuator.

The motorized driving device can operate in a control mode and in a configuration mode. Prior to the step of automatically determining the low end position of the screen, a step of entering the configuration mode is implemented.

The entry into the configuration mode of the motorized driving device can be implemented by pressing on a programming selection element of a control point or by simultaneously pressing two control point selection elements, the two control point selection elements being the up and down keys of the screen.

Following entering the configuration mode of the motorized driving device, a step of moving the screen towards the unwound position is implemented by the activation of the motorized drive device. The motorized driving device is activated by pressing the down arrow key on the screen.

As soon as the low end position of the screen is determined by the electronic control unit of the electromechanical actuator, the motorized drive device is stopped.

Nevertheless, between the moment of the determination of the low end position of the screen and the moment of the stopping of the motorized drive device, the electromechanical actuator drives the winding tube following a movement of down the screen.

In order to compensate for the reaction time of the motorized driving device following the determination of the low end position of the screen, the motorized drive device is activated in the opposite direction to move the screen towards the wound position and again stopped.

The displacement of the screen towards the wound position is implemented so as to reach a position higher than the position reached when determining the low end position, in which the load bar of the screen does not rest on a threshold of an opening equipped with the screen belonging to the concealment device and where the screen is kept taut.

The position higher than the position reached when determining the low end position is a learning position and determined as a reference position to validate the low end position of the screen.

However, the configuration of these motorized training devices has the disadvantage of validating the learning position following a last upward movement of the screen, whereas in the control mode of the motorized driving device the reaching the low end position is determined during a downward movement of the screen.

Therefore, the learning position in the configuration mode is different from the low end position of the screen reached in the control mode, since the learning position in the configuration mode is reached following a screen rise movement and the bottom end position of the screen in the control mode is reached following a downward movement of the screen.

In addition, to check the learning position determined in the configuration mode of the motorized driving device, the installer performs a downward movement of the screen to the unwound position in the control mode of the motorized driving device. .

In this way, the installer verifies that the low end position reached in the control mode is correct, that is to say that, on the one hand, the screen is kept taut, in other words that the screen load bar does not rest on the threshold of the opening, and that, on the other hand, the load bar of the screen is not too far from the threshold of the opening.

Also known is EP 2 148 036 A1 which describes a home automation closure system comprising a roller shutter, a motorized drive device and a control device. The shutter comprises a winding tube and an apron. A first end of the apron is connected to the winding tube and a second end of the apron comprises a final end blade. The motorized driving device comprises an electromechanical actuator for winding and unwinding the apron on the winding tube, between a wound position and an unwound position. The electromechanical actuator comprises an electric motor, an output shaft connected to the winding tube and an electronic control unit. The control device comprises two control keys, one of which makes it possible to control an upward movement of the apron and the other makes it possible to control a downward movement of the apron. The configuration of the shutter is implemented by entering a configuration mode, then making a first displacement of the deck towards the position unwound by the activation of the descent control key, a displacement of the deck towards the position wound by the activation of the upshift control key of the apron, a second movement of the apron towards the position unwound by the activation of the descent control key and a stop of the motor drive device to a low end position of the apron determined by the change of direction of movement of the deck between the first moving the apron towards the unrolled position and moving the apron towards the wound position.

The object of the present invention is to solve the abovementioned drawbacks and to propose a method of configuring a motorized drive device of a home automation system for closing or sun protection, an associated motorized drive device and a home automation system. closure or sun protection comprising such a motorized driving device, to improve the learning accuracy of the low end position of the screen.

For this purpose, the present invention aims, in a first aspect, a method of configuring a motorized drive device of a home automation system for closing or sun protection,

the home automation closure or sun protection system comprising a concealment device,

the concealment device comprising at least:

a winding tube,

a screen, a first end of the screen being fixed to the winding tube, and

a load bar, a second end of the screen being fixed to the load bar,

the motorized driving device comprising at least:

an electromechanical actuator for winding and unrolling the screen on the winding tube, between a wound position and an unwound position,

the electromechanical actuator comprising at least:

an electric motor,

an output shaft connected to the winding tube of the concealment device, and

- an electronic control unit,

the electronic control unit comprising at least:

a device for measuring a magnitude of an electric current passing through the electric motor, and

a memory storing a value of the measured quantity.

The configuration method comprises at least the following steps:

entering a configuration mode of the motorized training device, first movement of the screen towards the position unwound by the activation of the motorized drive device,

- automatic determination of a low end position of the screen,

- Displacement of the screen towards the wound position by the activation of the motorized drive device.

According to the invention, the configuration method comprises at least the following steps:

second movement of the screen towards the position unwound by the activation of the motorized drive device,

stopping the motorized drive device at the low end position of the determined screen during the automatic determination step.

In addition, the step of automatically determining the low end position of the screen comprises a sub-step of measuring the magnitude of the electric current passing through the electric motor by the measuring device and a sub-step of determining a variation of the measured quantity.

Thus, the method of configuring the motorized drive device of the home automation system for closing or sun protection allows, in the configuration mode of the motorized training device, to learn the low end position of the screen after a downward movement of the screen, as when reaching the low end position of the screen in a control mode of the motorized drive device, so as to minimize the distance between the learning position set in the configuration mode and the low end position of the display reached in the control mode.

In this way, the method of configuring the motorized drive device of the home automation system for closing or sun protection can improve the learning accuracy of the low end position of the screen.

In addition, such a method of configuring the motorized drive device makes it possible to dispense with the verification by the installer of the low end position of the screen reached in the control mode with respect to the position of the defined in the configuration mode.

Advantageously, the electronic control unit comprises at least one device for measuring a magnitude of an electric current flowing through the electric motor and a memory storing a value of the measured quantity. According to a preferred feature of the invention, the configuration method comprises, following the step of determining the low end position of the screen, a step of validating the low end position of the race. screen.

Advantageously, the validation step of the low end position of the screen is implemented when the determined variation of the measured quantity during the sub-step is greater than a predetermined threshold value.

Preferably, the step of validating the low end position of the determined screen comprises a substep of maintaining the activation of the motorized drive device, so as to move the screen to the unrolled position, for a predetermined period of time.

In practice, the step of moving the screen towards the position wound by the activation of the motorized drive device is implemented for a predetermined period of time or during at least a predetermined portion of the turn of the output shaft of the electromechanical actuator.

Preferably, the step of automatically determining the low end position of the screen comprises a substep of storing the low end position of the screen.

Advantageously, the configuration method comprises, following the step of stopping the motorized drive device at the determined low end position, a step of confirmation of the low end position of the screen.

The present invention aims, in a second aspect, a motorized drive device of a home automation system for closing or sun protection. This motorized driving device comprises the electronic control unit of the electromechanical actuator configured to implement the method of configuring the motor drive device mentioned above.

This motorized drive device has characteristics and advantages similar to those described above in relation to the configuration method according to the invention.

The present invention aims, according to a third aspect, a home automation system for closing or sun protection comprising a motorized drive device as mentioned above.

The invention also relates to a data storage medium, readable by a computer, on which is recorded a computer program comprising computer program code means for implementing the steps of the configuration method defined above. The invention further relates to a computer program comprising computer program code means adapted to perform the steps of the configuration method defined above, when the program is implemented by a computer.

Other features and advantages of the invention will become apparent in the description below.

In the accompanying drawings, given as non-limiting examples:

Figure 1 is a schematic cross-sectional view of a home automation system according to one embodiment of the invention; - Figure 2 is a schematic perspective view of the home automation system shown in Figure 1;

Figure 3 is a partial schematic sectional view of the home automation system illustrated in Figure 2 comprising an electromechanical actuator according to one embodiment of the invention; FIG. 4 is a block diagram of an algorithm of a method according to the invention, of a configuration of a motorized drive device of the home automation installation illustrated in FIGS. 1 to 3; and

FIG. 5 is a graph showing the evolution of a magnitude of an electric current flowing through an electric motor of an electromechanical actuator of the motorized drive device as a function of time, when the method of configuration, as represented in FIG. Figure 4, is implemented.

We will first describe, with reference to FIGS. 1 and 2, a home automation installation in accordance with the invention and installed in a building comprising an opening 1, window or door, equipped with a screen 2 belonging to a device. occultation 3, in particular a motorized roller blind.

The occulting device 3 is a cloth awning.

With reference to FIGS. 1 and 2, a roll-up blind according to one embodiment of the invention will be described.

The screen 2 of the occulting device 3 is wound on a winding tube 4 driven by a motorized drive device 5 and movable between a wound position, particularly high, and a unwound position, particularly low.

The movable screen 2 of the concealment device 3 is a closure, concealment and / or sun protection screen, winding on the winding tube 4, the internal diameter of which is substantially equivalent to the external diameter of a actuator electromechanical 1 1, so that the electromechanical actuator 1 1 can be inserted into the winding tube 4, during assembly of the occulting device 3.

The motorized drive device 5 comprises the electromechanical actuator 11, in particular of the tubular type, making it possible to rotate the winding tube 4, so as to unroll or wind up the screen 2 of the occulting device 3.

The occulting device 3 comprises the winding tube 4 for winding the screen 2, where, in the mounted state, the electromechanical actuator 11 is inserted into the winding tube 4.

The concealment device 3 also comprises a charge bar 8 for exerting a voltage on the screen 2.

In known manner, the roller blind, which forms the occulting device 3, comprises a fabric, forming the screen 2 of the roller blind 3. A first end of the screen 2, in particular the upper end of the screen 2 in the assembled configuration of the occulting device 3 in the home automation system, is attached to the winding tube 4. And a second end of the screen 2, in particular the lower end of the screen 2 in the configuration assembly of the concealment device 3 in the home automation system, is fixed to the load bar 8.

Here, the screen forming fabric 2 is made from a textile material. Moreover, such a fabric forming the screen 2 is provided to be impervious to air, that is to say wind resistant.

In an exemplary embodiment not shown, the first end of the screen 2 has a hem through which is disposed a rod, in particular plastic. This hem made at the first end of the screen 2 is obtained by means of a seam of the fabric forming the screen 2. When assembling the screen 2 on the winding tube 4, the hem and the rod located at the first end of the screen 2 are slidably inserted into a groove on the outer face of the winding tube 4, in particular over the entire length of the winding tube 4, so as to be able to wind and unwind the screen 2 around the winding tube 4.

In the case of a roll-up blind, the wound up position corresponds to the support of the load bar 8 of the screen 2 against an edge of a box 9 of the roller blind 3, and the unrolled low position corresponds to the support of the load bar 8 of the screen 2 against a threshold 7 of the opening 1.

The winding tube 4 is disposed inside the trunk 9 of the roll-up awning 3. The screen 2 of the roll-up awning 3 is rolled up and unrolls around the winding tube 4 and is housed at least partly in the inside the trunk 9. In general, the box 9 is disposed above the opening 1, or in the upper part of the opening 1.

In the embodiment illustrated in Figure 2, the screen 2 also comprises at each of its lateral edges a strip-shaped attachment piece 10. The home automation installation comprises two lateral rails 6 arranged along two lateral edges of the opening 1. And the side rails 6 respectively comprise a groove inside which is retained a fastener 10 of the screen 2, and a lateral end of the load bar 8 attached to the second end of the screen 2.

Thus, during winding or unwinding of the screen 2, the fasteners

10 fixed on the side edges of the screen 2 and the lateral ends of the load bar 8 attached to the second end of the screen 2 are retained in the lateral rails 6, so as to ensure lateral guidance of the screen 2.

Each groove in a lateral slide 6 makes it possible to prevent the removal of a fastener piece 10 fixed on one of the lateral edges of the screen 2, during the displacement of the screen 2 between the wound position and the unrolled position.

Preferably, each attachment piece 10 extends along the entire length of one of the two lateral edges of the screen 2.

In an exemplary embodiment, the fasteners 10 are fixed respectively at a side edge of the screen 2 by gluing, welding or overmolding. And the fasteners 10 may be made of plastic material and, in particular, overmolded on the lateral edges of the screen 2.

Here, the side rails 6 disposed respectively along a lateral edge of the opening 1 extend in a vertical direction. The lateral slides 6 extend from the threshold 7 of the opening 1 to the trunk 9 of the roller blind 3.

Advantageously, packing elements, not shown, are arranged inside the lateral slides 6 and cooperate with the fastening pieces 10 fixed respectively at a lateral edge of the screen 2, so as to maintain the screen 2 in tension by the application of a force on each fastener 10 against a wall of the lateral slide 6.

For example and in no way limiting, the packing elements arranged inside the side rails 6 are elastic elements, in particular plastic. The packing elements may also be provided in the form of foam or comprise a down. Thus, the packing elements arranged inside the lateral slides 6 make it possible to guarantee the application of a frictional resistance on the fastening pieces 10 of the screen 2, so as to keep the screen 2 taut, when moving the screen 2 or when the screen 2 is kept at a standstill.

Advantageously, the trunk 9 of the roller blind 3 and the side rails 6 form a frame inside which the screen 2 can be moved. This frame can be closed by an additional bar connecting the two side rails 6 at the threshold 7 of the opening 1.

The motor drive device 5 is controlled by a control unit. The control unit may be, for example, a local control unit 12, where the local control unit 12 may be wired or wirelessly connected to a central control unit 13. The central control unit 13 controls the local control unit 12, as well as other similar local control units distributed throughout the building.

The central control unit 13 may be in communication with a remote weather station outside the building, including, in particular, one or more sensors that can be configured to determine, for example, a temperature, a brightness, or a speed Wind.

A remote control 14, which may be a type of local control unit, and provided with a control keyboard, which comprises means of selection and display, further allows a user to intervene on the actuator electromechanical 1 1 and / or the central control unit 13.

The motorized drive device 5 is preferably configured to execute the unwinding or winding commands of the screen 2 of the concealment device 3, which can be transmitted, in particular, by the remote control unit 14.

The electromechanical actuator 11 comprises an electric motor 16. The electric motor 16 comprises a rotor and a stator, not shown and positioned coaxially about an axis of rotation X, which is also the axis of rotation of the tube. winding 4 in mounted configuration of the motorized drive device 5.

Control means of the electromechanical actuator 1 1 according to the invention, allowing the displacement of the screen 2 of the occulting device 3, comprise at least one electronic control unit 15. This electronic control unit 15 is suitable to operate the electric motor 16 of the electromechanical actuator 11, and, in particular, to allow the electric power supply of the electric motor 16. Thus, the electronic control unit 15 controls, in particular, the electric motor 16, so as to open or close the screen 2, as described above.

The electronic control unit 15 also comprises an order receiving module, in particular of radio orders issued by a command transmitter, such as the remote control 14 intended to control the electromechanical actuator 11 or one of the local control units 12 or central 13.

The order receiving module may also allow the reception of orders transmitted by wire means.

Here, and as illustrated in FIG. 3, the electronic control unit 15 is disposed inside a housing 17 of the electromechanical actuator 11.

The control means of the electromechanical actuator 11 comprise hardware and / or software means.

By way of non-limiting example, the hardware means may comprise at least one microcontroller.

The electromechanical actuator 11 belonging to the home automation system of FIGS. 1 and 2 will now be described in greater detail and with reference to FIG.

The electromechanical actuator January 1 is supplied with electrical energy by a mains power supply network, or by means of a battery, which can be recharged, for example, by a photovoltaic panel. The electromechanical actuator 1 1 moves the screen 2 of the occulting device 3.

Here, the electromechanical actuator January 1 includes a power supply cable 18 for its supply of electrical energy from the mains power supply network.

The casing 17 of the electromechanical actuator 11 is preferably of cylindrical shape.

In one embodiment, the housing 17 is made of a metallic material. The housing material of the electromechanical actuator is not limiting and may be different and, in particular, plastic.

The electromechanical actuator 11 also comprises a gear reduction device 19 and an output shaft 20.

Advantageously, the electric motor 16 and the gear reduction device 19 are disposed inside the casing 17 of the electromechanical actuator January 1.

The output shaft 20 of the electromechanical actuator January 1 is disposed inside the winding tube 4, and at least partly outside the casing 17 of the actuator electromechanical 1 1.

The output shaft 20 of the electromechanical actuator January 1 is coupled by a connecting means 22 to the winding tube 4, in particular a wheel-shaped connection means.

The electromechanical actuator 1 1 also comprises a shutter element

21 at one end of the housing 17.

Here, the casing 17 of the electromechanical actuator 11 is fixed to a support 23, in particular a cheek, of the trunk 9 of the concealment device 3 by means of the closing element 21 forming a torque support, particularly a closing head and torque recovery. In such a case where the shutter member 21 forms a torque support, the shutter element 21 is also called a fixed point of the electromechanical actuator January 1.

The electronic control unit 15 of the electromechanical actuator 11 comprises a device for detecting obstacles and limit switches during the winding of the screen 2 and during the unwinding of this screen 2.

The device for detecting obstacles and limit switches during winding and during the unwinding of the screen 2 is implemented by means of a microcontroller of the electronic control unit 15, and in particular by means of an algorithm implemented by this microcontroller.

The electronic control unit 15 comprises a measuring device 24 of a magnitude T of an electric current flowing through the electric motor 16 and a memory storing a value of the measured magnitude T.

In one embodiment, the magnitude T of the electric current flowing through the electric motor 16 measured by the measuring device 24 is a voltage and, in particular, a voltage at the terminals of a phase shift capacitor of the electric motor.

16 of the electromechanical actuator 1 1. The measurement of the voltage across the phase shift capacitor of the electric motor of the electromechanical actuator is well known in the state of the art and is described, in particular, in the document

FR 2 849 300 A1.

The acquisition of the voltage passing through the electric motor 16 via the measuring device 24 makes it possible to obtain a signal representative of the torque generated by the electric motor 16 of the electromechanical actuator 11.

Here, the memory storing the magnitude T of the electric current flowing through the electric motor 16 is formed by a memory of a microcontroller of the electronic control unit 15, in particular an "EEPROM" type memory (acronym for the English term). Saxon Electrically Erasable Programmable Read Only Memory).

The motor drive device 5 is provided to operate at least in one control mode and one configuration mode.

An embodiment of a method for configuring the motorized drive device 5 of the home automation system illustrated in FIGS. 1 to 3 will now be described with reference to FIG.

In FIG. 5, the graph illustrates, by a solid line curve, the evolution of the voltage value T of the electric current flowing through the electric motor 16, as a function of time t.

The time t is represented on the abscissa axis, the voltage value T is represented on the ordinate axis.

In this embodiment, the method of configuring the motorized drive device 5 of the home automation installation comprises a step E10 of entering the configuration mode of the motorized drive device 5.

The entry into the configuration mode of the motorized driving device 5 can be implemented by the switching between the control mode and the configuration mode of the motorized drive device 5.

Advantageously, the electronic control unit 15 of the electromechanical actuator January 1 is configured to switch from a control mode of the motor drive device 5 to a configuration mode of the motorized drive device 5, and vice versa.

In one embodiment, the step E10 of entering the configuration mode of the motorized driving device 5 is implemented by pressing on the programming selection element of a control point 12, 14, in particular of the remote control 14.

In another embodiment, the step E10 entering the configuration mode of the motorized drive device 5 is implemented by simultaneously pressing two control point selection elements 12, 14, particular of the remote control 14, such as, for example, the selection elements for raising and lowering the screen 2.

Following the entry into the configuration mode of the motorized drive device 5, the method comprises a step E20 of signaling the configuration mode.

In practice, the signaling step E20 is implemented by a displacement of the screen 2 controlled by the motorized drive device 5. Preferably, the displacement of the screen 2 corresponds to a round-trip movement of the screen 2, in particular over a short distance which may be, for example, of the order of one centimeter.

Here, the signaling step E20 is implemented following the step E10 entering the configuration mode of the motorized drive device 5.

The configuration method comprises a step E30 for selecting a selection element of a control point 12, 14, in particular of the remote control 14, such as, for example, the descent selection element of the screen 2.

Following step E30 of selecting a selection element of a control point 12, 14, the configuration method comprises a first step E40 of moving the screen 2 towards the position unwound by the activation. of the motorized drive device 5.

The configuration method comprises a step E50 for automatically determining the low end position of the screen 2.

Thus, the step E50 for automatically determining the low end position of the screen 2 makes it possible to delimit the displacement path of the screen 2 of the concealment device 3, during the descent of the screen 2 .

In this way, the first step E40 of moving the screen 2 towards the unrolled or low position is implemented until a stop is reached, as defined below by the sub-position. step E530.

Preferably, the step E50 for automatically determining the low end position of the screen 2 is implemented following the step E30 of selecting a selection element of a control point 12, 14 and in particular, during the first step E40 of moving the screen 2 towards the unrolled position.

In one embodiment, the step E50 for automatically determining the low end position of the screen 2 may also be associated with a step of automatically determining the upper limit position of the screen 2.

The steps of automatically determining the low and high end positions of the screen 2 can be implemented consecutively.

Advantageously, the step E50 of automatic determination of the low end position of the screen 2 comprises a substep E500 measuring the magnitude T of the electric current flowing through the electric motor 16 by the measuring device 24 and a sub-step E530 for determining a variation Δ of the measured magnitude T, as illustrated in FIG.

Advantageously, the substep E500 for measuring the magnitude T of the current Electrical is implemented periodically.

By way of non-limiting example, the substep E500 measuring the magnitude T of the electric current is implemented every 20 milliseconds.

The step E50 for automatically determining the low end position of the screen 2 also comprises a substep E510 for storing the values of the quantity T measured according to a predetermined periodicity.

Advantageously, the substep E510 for storing the values of the measured magnitude T is implemented according to the periodicity of implementation of the substep E500 for measuring the magnitude T of the electric current.

The values of the measured magnitude T, stored during the substep E510, are kept for a predetermined period P of displacement of the screen 2 towards the unrolled position, during the first step E40 of moving the screen 2.

The step E50 for automatically determining the low end position of the screen 2 also comprises a substep E520 for determining a maximum value Tmax of the measured value T among the values of the measured value T, stored in memory. during the substep E510, during the predetermined period P of moving the screen 2 to the unrolled position.

Advantageously, the values of the measured magnitude T for determining the variation Δ of the measured magnitude T are temporarily stored in a buffer memory of the electronic control unit 15, and in particular of the microcontroller 27.

Preferably, the sub-step E530 for determining the variation Δ of the measured magnitude T is implemented between a time t1 preceding the determination of reaching the low end-of-travel position of the screen 2 and a time t2. following the determination of reaching the low end position of the screen 2, as shown in FIG.

In practice, the sub-step E530 for determining the variation Δ of the measured magnitude T is implemented by means of the electronic control unit 15, and in particular the measuring device 24 and a microcontroller of the electronic control unit 15.

Here, the sub-step E530 for determining the variation Δ of the measured magnitude T is implemented following the execution of the substeps E510 for storing the measured magnitude T and E520 for determining the maximum value Tmax of the magnitude T measured during the predetermined period P.

In one embodiment, substep E530 for determining the variation Δ of the measured magnitude T is implemented by determining a difference between the maximum value Tmax of the quantity T measured during the predetermined period P and the last value of the quantity T measured during the predetermined period P .

Here, the substep E530 for determining the variation Δ of the measured magnitude T corresponds to the detection of a deviation of the magnitude T measured by the electronic control unit 15, in particular from a deviation of the voltage at terminals of a phase shift capacitor of the electric motor 16 of the electromechanical actuator 1 1.

The variation Δ of the measured magnitude T is determined from the implementation of the substep E500 for measuring the magnitude T of the electric current at a predetermined periodicity, of the substep E510 for storing the values of the quantity. T measured according to the predetermined periodicity and the substep E520 for determining the maximum value Tmax of the quantity T measured during the predetermined period P.

The substep E530 for determining the variation Δ of the measured magnitude T comprises a comparison of the maximum value Tmax of the quantity T measured during the predetermined period P with the last value of the quantity T measured during the period predetermined value P and a calculation of the difference between the maximum value Tmax of the quantity T measured during the predetermined period P and the last value of the quantity T measured during the predetermined period P, so as to determine the variation Δ of the magnitude T measured.

The different phases of the sub-step E530 for determining the variation Δ of the measured magnitude T are repeated with each new measurement of the magnitude T of the electric current, in the substep E500.

The step E50 for automatically determining the low end position of the screen 2 is implemented until the variation Δ of the measured magnitude T is determined.

The variation Δ of the measured quantity T determined, during the substep E530, corresponds to the variation of the load on the electric motor 16 of the electromechanical actuator January 1, when the load bar 8 of the screen 2 comes into contact with the threshold 7 of the opening 1, during the first step E40 of moving the screen 2.

In another embodiment, the sub-step E530 for determining the variation Δ of the measured magnitude T is implemented by determining a difference between an average value of at least a portion of the values of the magnitude T measured during the predetermined period P and the last value of the magnitude T measured at during the predetermined period P.

Advantageously, the step E50 for automatically determining the low end position of the screen 2 comprises a substep E540 for storing the determined variation Δ of the measured value T, during the substep E530.

The determined variation Δ of the measured magnitude T is preferably recorded in a memory of a microcontroller of the electronic control unit 15.

The configuration method comprises, following step E50 of automatic determination of the bottom end position of the screen 2, a step E60 of validation of the low end position of the screen 2.

Advantageously, the step E60 for validating the low end position of the screen 2 is implemented when the determined variation Δ of the measured magnitude T, during the substep E530, is greater than a threshold value. S predetermined.

By way of non-limiting example, the predetermined threshold value S can be in a range extending from 4 Nm to 6 Nm, Nm being the symbol of the unit of measurement of a torque in Newton meter.

The predetermined threshold value S is dependent on the maximum value of the torque delivered by the electromechanical actuator January 1.

In the case where the variation Δ determined of the measured magnitude T, during the substep E530, is greater than the predetermined threshold value S and that this does not correspond to the actual end position of the low end of the screen 2, the steps E30 for selecting a selection element of a control point 12, 14, E40 for moving the screen 2 towards the unrolled position and E50 for automatically determining the end position the bottom of the screen 2 are again implemented, so as to determine another variation Δ of the measured magnitude T.

Preferably, the step E60 of validation of the low end position of the screen 2 determined, during the step E50, comprises a substep E600 for maintaining the activation of the motorized drive device 5, so as to move the screen 2 to the unrolled position, for a predetermined period of time, not shown.

Thus, the maintenance of the activation of the motorized drive device 5 during the predetermined period of time, during the substep E600, makes it possible to validate the low end position of the screen 2 determined beforehand, when step E50, and in particular to validate the variation Δ determined of the measured magnitude T, during the substep E530.

In this way, the maintenance of the activation of the motorized drive device 5 during the predetermined period of time, during the substep E600, makes it possible to validate that the variation Δ determined of the magnitude T measured, during the substep E530, does not correspond to the detection of a hard point or to a gust of wind, during the sliding of the screen 2 in the lateral slides 6, during the first step E40 of moving the screen 2 towards the unwound position by the activation of the motorized drive device 5.

During the step E60 of validation of the low end position of the screen 2 determined, the first step E40 of displacement of the screen 2 by the activation of the motor drive device 5 continues to be put implemented, so that the screen 2 continues to unfold although the load bar 8 of the screen 2 rests on the threshold 7 of the opening 1.

Thus, following the step E60 of validation of the low end position of the screen 2 determined, the screen 2 is relaxed.

By way of non-limiting example, the predetermined period of time during which the motorized drive device 5 is kept activated is of the order of 400 milliseconds.

Here, the low end position of the screen 2 determined during step E50 is validated, in step E60, if the magnitude T measured following the determination of the low end position. screen 2 is stable.

In practice, the low end position of the screen 2 is validated when the magnitude T measured during the predetermined period of time, of the substep E600, is between two threshold values T _1; T ₂ determined from the last value of the measured and stored magnitude T, for the determination of the variation Δ of the measured magnitude T, during the substep E530.

The step E60 of validation of the low end position of the screen 2 determined comprises a substep E610 for measuring the magnitude T of the electric current flowing through the electric motor 16, a substep E620 for comparing the magnitude T measured following the determination of the low end position of the screen 2, in step E50, with the magnitude T measured during the predetermined period of time, in the substep E600.

In practice, the step E60 of validation of the low end position of the screen 2 is implemented by means of the electronic control unit 15, and in particular of the measuring device 24 and a microcontroller of the electronic control unit 15.

The configuration method comprises a step E70 of stopping the motorized drive device 5, following the validation of the low end position of the the screen 2, during step E60.

Here, the step E70 of stopping the motorized drive device 5 is implemented following the flow of the predetermined period of time, the substep E600.

In practice, when the determined variation Δ of the measured magnitude T, during the substep E530, is greater than the predetermined threshold value S then validated during the step E60 for validating the low end position of the engine. the screen 2 determined, the step E70 stop of the motor drive device 5 is implemented.

The configuration method comprises, following step E70 of stopping the motorized drive device 5, a step E80 of moving the screen 2 towards the position wound by the activation of the motorized drive device 5 , then a step E90 of stopping the motorized drive device 5.

In practice, the step E80 of moving the screen 2 towards the position wound by the activation of the motor drive device 5 is implemented for a predetermined period of time or during at least a predetermined portion of a turn of the output shaft 20 of the electromechanical actuator 1 1.

The step E80 of moving the screen 2 towards the wound position by the activation of the motorized drive device 5 makes it possible to tighten the screen 2.

The configuration method also comprises a second step E100 for moving the screen 2 towards the position unwound by the activation of the motorized drive device 5 and a step E1 for stopping the motorized drive device 5. the bottom end position of the screen 2 determined during step E50.

Thus, the configuration method of the motorized drive device 5 allows, in the configuration mode of the motorized drive device 5, to learn the low end position of the screen 2 following a downward movement of the screen 2, as when reaching the low end position of the screen 2 in the control mode of the motor drive device 5, so as to minimize the distance between the defined learning position in the configuration mode and the low end position of the screen 2 reached in the control mode.

In this way, the method of configuring the motorized driving device 5 makes it possible to improve the learning accuracy of the low end position of the screen 2.

In addition, such a method of configuring the motorized driving device 5 makes it possible to dispense with the verification by the installer of the low end position of the screen 2 reached in the control mode with respect to the learning position set in the configuration mode. Following the second step E100 of moving the screen 2 towards the position unwound by the activation of the motorized drive device 5, the motor drive device 5 is stopped at the low end position of the motor. screen 2 determined, during step E50, and, more particularly, at the position of the screen 2 corresponding to the determination of the variation Δ of the measured magnitude T, during the substep E530, during the first step E40 of moving the screen 2 to the unwound position by the activation of the motorized drive device 5.

In this way, when stopping, in step E1 10, the motor drive device 5 at the low end position of the screen 2 determined, in step E50, the screen 2 is held taut in the side rails 6 and the distance between the load bar 8 of the screen 2 and the threshold 7 of the opening 1 is minimized.

Furthermore, following the step E1 10 of stopping the motorized drive device 5 at the low end position of the screen 2 determined, during the step E50, this position of the screen 2, which can be viewed by the installer in the configuration mode of the motorized drive device 5, corresponds to the low end position of the screen 2 reached following a downward movement of the screen 2 in the unwrapped position, in the control mode of the motor drive device 5.

Advantageously, the step E50 for automatically determining the low end position of the screen 2 comprises a substep E550 for storing the low end position of the screen 2.

Thus, following the second step E100 of moving the screen 2 towards the unwound position, the screen 2 is stopped, during the step E1 10, at the bottom end position of the screen 2 stored in substep E550.

In practice, the substep E550 for storing the low end position of the screen 2 is implemented by means of the electronic control unit 15, and in particular a memory of a microcontroller. the electronic control unit 15.

In addition, the substep E550 for storing the low end position of the screen 2 is implemented by the electronic control unit 15, in particular by a memory of a microcontroller of the electronic unit. 15, and a counting means configured to determine the position of the load bar 8 of the screen between the wound position and the unrolled position.

In an exemplary embodiment, the means for counting the position of the load bar 8 of the screen between the wound position and the unrolled position is implemented by means of an encoder wheel driven by the winding tube 4 , the coding wheel possibly comprising at least one magnet cooperating with at least one effect sensor Lobby.

In another exemplary embodiment, the means for counting the position of the load bar 8 of the screen between the wound position and the unrolled position is implemented by means of one or more sensors for detecting the rotation of the rotor of the electric motor 16 of the electromechanical actuator 1 1.

In another exemplary embodiment, the means for counting the position of the load bar 8 of the screen between the wound position and the unrolled position is implemented by means of an internal counting element of a microcontroller. the electronic control unit 15, or else a counting element associated with a clock of the electronic control unit 15.

The position of the screen 2 determined in the step E50 and stored in the substep E550 corresponds to the low end of the learning position of the screen 2. The low end of the learning position of the screen 2 is the position of the screen 2 corresponding to the instant of the determination of the variation Δ of the measured magnitude T, during the substep E530, in other words at the moment when the load bar 8 of the screen 2 touches the threshold 7 of the opening 1, during the step E40 of first displacement of the screen 2 towards the unwound position.

The low end learning position of the screen 2 is used during a movement of the screen 2 to the position unwound in the control mode of the motorized drive device 5, so as to stop the screen 2 at the low end position of the screen 2 and to maintain the screen 2 in tension in the side rails 6 and closest to the threshold 7 of the opening 1.

In one embodiment, the configuration method comprises, following the step E1 10 of stopping the motorized drive device 5 at the determined end-of-travel position, a step E120 confirming the end position of low run of the screen 2.

The step E120 confirming the low end position of the screen 2 is implemented by the user.

In one embodiment, the step E120 confirming the low end position of the screen 2 is implemented by pressing on a selection element of a control point 12, 14, in particular of the remote control 14.

By way of non-limiting example, the step E120 confirming the low end position of the screen 2 is implemented by pressing the selection element of the control point 12, 14 corresponding to the stop moving the screen 2. In addition, the step E120 confirming the low end position of the screen 2 is implemented by pressing a selection element of a control point 12, 14 for a predetermined period of time.

By way of non-limiting example, the predetermined period of time during which a control point selection element 12, 14 is pressed to confirm the low end position of the screen 2 is of the order of two seconds.

Here, the stop steps E70, E90, E1 10 of the motorized drive device 5 are implemented automatically by the electronic control unit 15 of the electromechanical actuator January 1.

Likewise, the steps E80, E100 for moving the screen 2 by the activation of the motorized drive device 5 are implemented automatically by the electronic control unit 15 of the electromechanical actuator 11.

In addition, the steps E40, E80, E100 of displacement of the screen 2 by the activation of the motorized drive device 5 are implemented in the configuration mode of the motorized drive device 5.

Such a configuration method in which the learning of the low end position of the screen 2 is implemented in a software way by the electronic control unit 15 of the electromechanical actuator 11 makes it possible to minimize the costs obtaining the motorized drive device 5.

With the present invention, the method of configuring the motorized drive device of the home automation system for closing or sun protection allows, in the configuration mode of the motorized training device, to learn the end position. the bottom of the screen following a downward movement of the screen, as when reaching the low end position of the screen in a control mode of the motorized driving device, so as to minimize the distance between the learning position defined in the configuration mode and the low end position of the screen reached in the control mode.

In practice, a data storage medium, readable by a computer, is integrated into the home automation system and is used for storing a computer program comprising implementation codes of steps E10 to E120 of the configuration method mentioned herein. -above. The invention also relates to this support data logging and this computer program.

Of course, many modifications can be made to the embodiments described above without departing from the scope of the invention defined by the claims.

In particular, the electric motor of the electromechanical actuator can be of the asynchronous type, direct current, or type brushless electronic commutation, also called "BLDC" (acronym for the term BrushLess Direct Current) or synchronous to permanent magnets.

In addition, the measured magnitude T of the electric current flowing through the electric motor 16 may be different from its voltage. It can, in particular, be its intensity.

In addition, the contemplated embodiments and alternatives may be combined to generate new embodiments of the invention.

Claims

Method for configuring a motorized drive device (5) for a home automation system for closing or sun protection,

the home automation closure or sun protection system comprising a concealment device (3),

the occulting device (3) comprising at least:

a winding tube (4),

a screen (2), a first end of the screen (2) being fixed to the winding tube (4), and

a load bar (8), a second end of the screen (2) being fixed to the load bar (8),

the motor drive device (5) comprising at least:

- an electromechanical actuator (1 1) for winding and unwinding the screen (2) on the winding tube (4), between a wound position and a unwound position,

the electromechanical actuator (1 1) comprising at least:

an electric motor (16),

an output shaft (20) connected to the winding tube (4) of the concealment device (3), and

an electronic control unit (15),

the electronic control unit (15) comprising at least:

a measuring device (24) of a magnitude (T) of an electric current flowing through the electric motor (16), and

a memory storing a measured value of the quantity (T),

said method comprises at least the following steps:

- (E10) entering a configuration mode of the motorized drive device (5),

- (E40) first displacement of the screen (2) towards the unwound position by the activation of the motorized drive device (5),

- (E50) automatic determination of a low end position of the screen (2),

- (E80) moving the screen (2) towards the position wound by the activation of the motorized drive device (5),

characterized in that said method comprises at least the following steps: - (E100) second displacement of the screen (2) towards the unwound position by the activation of the motorized drive device (5),

- (E1 10) stopping the motorized drive device (5) at the bottom end position of the screen (2) determined, during the automatic determination step (E50),

and in that the step (E50) for automatically determining the low end position of the screen (2) comprises a substep (E500) for measuring the magnitude (T) of the electric current flowing through the motor electrical (16) by the measuring device (24) and a substep (E530) for determining a variation (Δ) of the measured magnitude (T).

A method of configuring a motorized drive device (5) of a home automation system for closing or sun protection according to claim 1, characterized in that said method comprises, following step (E50) of automatic determination of the bottom end position of the screen (2), a step (E60) for enabling the bottom end position of the screen (2).

A method of configuring a motorized drive device (5) of a home automation system for closing or sun protection according to claim 2, characterized in that the step (E60) for enabling the low end position of the screen (2) is implemented when the determined variation (Δ) of the measured quantity (T), during the substep (E530), is greater than a predetermined threshold value (S).

A method of configuring a motorized drive device (5) of a home automation closure or sun protection system according to claim 2 or claim 3, characterized in that the step (E60) for validating the position of determined lower limit of the screen (2) comprises a substep (E600) for maintaining the activation of the motorized drive device (5), so as to move the screen (2) towards the unrolled position , for a predetermined period of time.

A method of configuring a motorized drive device (5) of a home automation closure or sun protection system according to any one of claims 1 to 4, characterized in that the step (E80) of moving the the screen (2) towards the position wound by the activation of the motor drive (5) is implemented for a predetermined period of time or during at least a predetermined portion of the output shaft turn (20) of the electromechanical actuator (1 1).

6. A method of configuring a motorized drive device (5) of a home automation system for closing or sun protection according to any one of claims 1 to 5, characterized in that the determination step (E50) automatic display of the low end position of the screen (2) comprises a substep (E550) for storing the low end position of the screen (2).

7- A method of configuring a motorized drive device (5) of a home automation closure or sun protection system according to any one of claims 1 to 6, characterized in that said method comprises, following the step (E1 10) for stopping the motorized drive device (5) at the determined low end position, a step (E120) for confirming the low end position of the screen (2).

8- Motorized drive device (5) of a home automation system for closing or sun protection, characterized in that the electronic control unit (15) of the electromechanical actuator (1 1) is configured to implement the method of configuration according to any one of claims 1 to 7.

9- home automation system for closing or sun protection, characterized in that said home automation system comprises a motorized drive device (5) according to claim 8.