264results about "AC motor direction control" patented technology

Techniques for controlling a vehicle based on a collision avoidance algorithm are discussed herein. The vehicle receives sensor data and can determine that the sensor data represents an object in an environment through which the vehicle is travelling. A computing device associated with the vehicle determines a collision probability between the vehicle and the object at predicted locations of the vehicle and object at a first time. Updated locations of the vehicle and object can be determined, and a second collision probability can be determined. The vehicle is controlled based at least in part on the collision probabilities.

The invention discloses an energy storage device for a high-energy-consumption power distribution network, and relates to the technical field of power grid energy storage equipment.The device shell is internally provided with a battery body, the middle of the inner side of the device shell is provided with an isolation plate, the isolation plate is internally provided with a heat dissipation mechanism, the rear end of the device body is provided with two monitoring mechanisms, and the monitoring mechanisms are located on the rear portion of the battery body; a transmitter is arranged at the top of the device shell, and the battery body can be electrically connected with the transmitter; a driving motor is arranged at the top of the device shell, the front end of the driving motor is connected with the monitoring mechanism, and the bottom of the driving motor is connected with the heat dissipation mechanism. When the temperature of the battery body needs to be monitored in the equipment, the driving motor rotates reversely, so that the driving motor drives the monitoring mechanism to ascend and descend to a specified position, the temperature or other data of the specified position of the battery body is monitored, and when the equipment is used for monitoring the use condition of the battery body, the equipment is convenient to use. Therefore, the monitoring performance of the equipment in use is improved.

The invention provides a carrier rocket engine stage-switching motor redundancy control system, which is combined with a multi-input instruction redundancy voting method, a voting path software and hardware arbitration method and the like to complete high-reliability carrier rocket engine stage-switching motor control. According to the system, two-out-of-three voting is carried out by using a triple-redundancy input control instruction and interactive heartbeat, software and hardware joint arbitration is carried out on voting results of three modules, and an instruction control channel is determined to complete phase sequence control of the stage conversion winding. The method has strong fault capability, has no single-point failure link, and can ensure the normal operation of the engine conversion motor in the flight process of the carrier rocket.

The invention provides a driving circuit control method and system and a vehicle, and the method comprises the steps: responding to a driving circuit control instruction, and entering a vehicle window driving mode or a wireless charging mode; under the condition of the vehicle window driving mode, the battery voltage is adjusted to be first voltage through the voltage converter and then output to the driving circuit, the driving circuit drives the motor to rotate, and the vehicle window is controlled to ascend or descend; under the condition of a wireless charging mode, the voltage converter adjusts the battery voltage into a second voltage and outputs the second voltage to the driving circuit, and the driving circuit activates the resonance circuit to generate resonance to transmit electric energy. The driving circuit for controlling the vehicle window can be reused for wireless charging, the problem that repeated components cannot be reused due to the fact that the vehicle window driving circuit and the wireless charging module are designed separately is solved, and the circuit cost is reduced. By sharing the voltage converter, the problem of large space occupation caused by discrete design between the vehicle window driving circuit and the wireless charging module is solved.

The utility model relates to a motor control system for a movable sofa. The motor control system comprises a motor, a power supply, a manual control switch and an anti-pinch execution switch, wherein the anti-pinch execution switch can be switched between a first execution position and a second execution position; in the first execution position, the motor is connected to the manual control switch through the anti-pinch execution switch, and the polarity of the voltage applied to the motor by the power supply is changed through switching of the manual control switch; and in the second execution position, the motor is connected to the power supply through the anti-pinch execution switch, and the motor rotates and drives the movable sofa to stretch so as to realize anti-pinch. The utility model also relates to a movable sofa with the motor control system.

The invention provides a multi-contact motor forward and reverse rotation control device. The multi-contact motor forward and reverse rotation control device structurally comprises a rotatable movable contact, an elastic telescopic rod, a sliding push rod and an electromagnetic assembly. The electromagnetic assembly serves as driving force to achieve rapid switching of the position of the movable contact so as to control forward and reverse rotation of the motor. The movable contact is designed to be sequentially connected with the fixed contact; and the sliding push rod is matched with a reciprocating boosting block on the back surface of the movable contact to realize rapid and stable movement of the movable contact. The device adopts a miniaturized design, is compact in structure, saves space, and is convenient to install and integrate into various electrical control systems. In addition, due to the scraping effect of the movable contact in the switching-on process, the fixed contact is automatically cleaned, contact fusion welding is effectively prevented, and the safety of the system is enhanced. The device is simple in structure, low in maintenance cost, easy to disassemble and maintain, capable of ensuring safe disconnection even under the condition that the reset spring fails, and suitable for wide industrial automation application.

The invention relates to the technical field of motor control, in particular to a coating machine die head motor control method and system based on a neural network model. The method comprises the following steps: acquiring real-time position data, rotation direction identification data and angular velocity change data of each section of motor of the die head of the coating machine and torque feedback data of each section of gap adjusting mechanism, and forming a multidimensional motor state data set containing time sequence marks; constructing a direction sensitive activation function according to the rotation direction identification data and the angular velocity change data; and setting a forward weight coefficient and a reverse weight coefficient based on a direction sensitive activation function to carry out dynamic switching mechanism simulation on the direction dependence characteristic of the mechanical gap. According to the method, inter-segment torque propagation and stress waves are analyzed in combination with the neural network model, multi-segment coordination compensation is achieved, and the problem of inter-segment coupling interference is solved.

The utility model discloses a forward and reverse rotation module of a three-phase motor, which comprises a forward rotation circuit and a reverse rotation circuit, and each of the forward rotation circuit and the reverse rotation circuit comprises a time delay circuit, an interlocking circuit, an optocoupler driving circuit and a switching circuit. The input end of the time delay circuit is connected with the output end of a three-phase power supply, the interlocking circuit is connected to the time delay circuit in parallel, the output end of the time delay circuit is connected with the input end of the optical coupler driving circuit, the optical coupler driving circuit comprises a light emitting diode and two common-source-electrode metal-oxide-semiconductor field effect transistor (MOSFET) tubes which are connected in series reversely, and the two common-source-electrode metal-oxide-semiconductor field effect transistor (MOSFET) tubes are connected in parallel. The output end of the optocoupler driving circuit is connected with the input end of the switching circuit to control the on-off of the switching circuit, and the output end of the switching circuit is connected with the input end of the three-phase motor to form a forward rotation path or a reverse rotation path. The switch circuit has good anti-electromagnetic interference performance and anti-vibration and anti-impact capability, and when the switch circuit is in an over-high electromagnetic interference state or an over-high vibration and anti-impact state, the switch circuit is not mistakenly conducted.

The invention discloses an emulsion pump loading valve speed regulation control system and a working method thereof. The emulsion pump loading valve speed regulation control system comprises a servo motor, a servo driver and an upper computer. The working method comprises the following steps: S1, inputting a pressure set value of the loading valve of the emulsion pump; s2, the upper computer calculates the input pressure set value of the loading valve of the emulsion pump through a PID (Proportion Integration Differentiation) controller to obtain a required rotating state and a required rotating speed of a servo motor and transmits the required rotating state and the required rotating speed to a servo driver; s3, controlling a servo motor by a servo driver, and enabling the servo motor to drive an emulsion pump loading valve to work; s4, the pressure sensor feeds back the pressure acquisition value to the upper computer; s5, the upper computer carries out comparison calculation on the pressure parameters of the loading valve of the emulsion pump through a PID (Proportion Integration Differentiation) controller; and S6, the servo driver adjusts and controls the servo motor according to the comparison calculation result, and precise pressure control over the loading valve of the emulsion pump is achieved.

The invention discloses a motor control method and device and a computer program product, and the method comprises the steps: increasing or reducing the change number of Hall pulses in the current driving process after a motor is driven, so as to update the position of the motor; when the motor moves to a limit position and triggers locked-rotor, stopping motor driving, and setting the updated motor position as a hard stop position; increasing or decreasing a preset number of Hall pulses on the hard stop position as a soft stop position; and when the motor reaches the soft stop position in the process of moving towards the hard stop position, motor driving is stopped. According to the invention, accurate memory of the hard stop position of the motor and real-time identification of the current position are realized, so that in the driving process of the motor, pre-judgment can be carried out in advance, the locked-rotor condition can be actively avoided, damages such as overheating and abrasion caused by locked-rotor are effectively prevented, and the service life of the motor is remarkably prolonged.

The invention relates to a refrigeration stirring mechanism, an operation method and system thereof and a storage medium, and relates to the technical field of refrigeration, and the method comprises the steps that in response to mode selection operation of the refrigeration stirring mechanism, the operation mode and manufacturing completion conditions of the refrigeration stirring mechanism are determined; a motor rotation scheme of the refrigeration stirring mechanism is set according to the operation mode, the motor rotation scheme comprises the motor rotation speed, the forward rotation duration and the reverse rotation duration, and the ratio of the reverse rotation duration to the forward rotation duration is located in a preset interval; determining a set temperature of the refrigeration stirring mechanism from the operation mode; a stirring motor in the refrigeration stirring mechanism is controlled to operate according to the motor rotation scheme, an evaporator in the refrigeration stirring mechanism is controlled to operate according to the set temperature, and each rotation of the stirring motor at least comprises one-time forward rotation and one-time reverse rotation; a fabrication completion signal is generated in response to the fabrication completion condition being satisfied. The refrigeration stirring mechanism has the effects that stirring is more sufficient, and the refrigeration efficiency is improved.

The utility model discloses a motor forward and reverse rotation control circuit capable of preventing interphase short circuit. The motor forward and reverse rotation control circuit comprises a master control switch QF1, a stop button SB1, a forward rotation start button SB2, a reverse rotation start button SB3, a forward rotation contactor KM1, a reverse rotation contactor KM2, a time relay KT, a first relay KA, a start permission indication lamp HL1 and a start dispermission indication lamp HL2. Through mutual cooperation of a stop button SB1, a time relay KT and a start-not-allowed indicating lamp HL2, a set time interval exists between stopping of the motor and restarting of the motor, and through lighting of the start-not-allowed indicating lamp HL2, it is clearly indicated that a forward rotation start button SB2 or a reverse rotation start button SB3 is forbidden to be pressed down, so that the situation that forward rotation of the motor is not completely stopped, and the motor cannot be started again is avoided. When the motor rotates, the motor rotates reversely, or the motor rotates forwards if the reverse rotation is not stopped completely, and when the rotating direction of the motor is switched, the set time of the time relay KT can ensure that the motor is stopped completely, so that the problem of inter-phase short circuit is avoided, and safe production is ensured.

The present application provides a control device of an electric motor, which can quickly and effectively stop at a specific position, thereby achieving further high-speed positioning. The control device of the electric motor is used for stopping a rotating shaft rotating at a specified speed at a specific position after a stop instruction, and comprises: a first time calculation unit, which calculates a first time for stopping the rotating shaft at a target stop position without changing the rotating direction according to a current speed, the target stop position and an acceleration at the time of positioning; a second time calculation unit, which calculates a second time for stopping the rotating shaft at the target stop position by rotating the rotating shaft in the reverse direction after temporarily stopping the rotation of the rotating shaft according to the current speed, the target stop position and the acceleration at the time of positioning; a comparison unit, which compares the first time with the second time; and a directional stop control unit, which performs stop control of the electric motor in a manner of shortening the time until the rotating shaft is stopped at the target stop position based on the comparison result of the comparison unit.

The embodiment of the utility model provides a motor positive and negative rotation control circuit and system and a clothes airing machine, and relates to the technical field of electronic circuits. The circuit comprises a first module which comprises an H-bridge circuit composed of MOS tubes, and the H-bridge circuit is respectively connected with two ports of a motor; the second module comprises a bypass capacitor and a first resistor which are connected in parallel; wherein the first module is respectively connected with the control chip, the power supply, the ground and a port for providing working voltage; the positive electrode end of the second module is connected to a branch where the first module is connected with the power supply and the port for providing the working voltage, and the other end is grounded. The precision and stability of motor control can be improved, and the cost is reduced.

The application provides a motor braking device, which comprises a frame, a first solenoid for controlling the forward rotation of the motor and a second solenoid for controlling the reverse rotation of the motor are arranged in the frame respectively; the first solenoid and the second solenoid each comprise a coil, a moving iron core and a static iron core, the static iron core is sleeved on one end of the moving iron core, and the coil is arranged on the outer side of the moving iron core and the static iron core; one end of the moving iron core is arranged outside the static iron core and connected with a first driving element, the other end of the moving iron core is connected with a second driving element, the first driving element is connected with a driving switch, and the second driving element is connected with a limit switch through a third driving element. The two solenoids are arranged to control the forward and reverse rotation of the motor respectively, the coils of the two solenoids are electrified to control the forward and reverse rotation of the motor respectively, and the coils are automatically connected with a standby braking circuit after losing electricity; when a switch SL3 in the electric circuit is actuated, the motor is instantaneously braked, and the braking is rapid and reliable.

To provide a fastening tool capable of restraining or preventing dispersion of a stop position when a driving mechanism stops.SOLUTION: The fastening tool includes a motor having a motor shaft, a housing, a pin-gripping part, a driving mechanism connected to the pin-gripping part and configured to perform rearward movement and forward movement, a position acquisition part configured to acquire a relative position of the driving mechanism, and a motor control part configured to switch a moving direction and a moving speed of the driving mechanism. The motor control unit starts forward movement of the shaft such that the movement speed becomes a first speed, decelerates the movement speed to a second speed slower than the first speed by PWM control for changing a duty ratio output to the motor when the acquired relative position reaches a deceleration position behind the initial position in the forward movement, and stops driving of the motor when the acquired relative position reaches a predetermined braking position in front of the deceleration position and behind the initial position.SELECTED DRAWING: Figure 11

The utility model discloses a motor driving circuit, a PCB and a motor. The motor driving circuit comprises a three-phase H-bridge circuit unit and a driving unit. The three-phase H-bridge circuit unit comprises a U-phase H-bridge circuit, a V-phase H-bridge circuit and a W-phase H-bridge circuit, and each phase of H-bridge circuit comprises an upper bridge arm switch tube and a lower bridge arm switch tube; the drain electrode of the upper bridge arm switch tube of each phase H-bridge circuit is connected with the positive electrode of a power supply, the source electrode is connected with a CON point, the drain electrode of the lower bridge arm switch tube is connected with the CON point, and the source electrode is grounded; the driving unit comprises six paths of driving signal lines which are respectively connected with grid electrodes of the H-bridge circuit switch tubes of all phases and are used for switching and outputting conduction levels of the bridge arm switch tubes of all phases according to chip signals. Stable switching of forward rotation and reverse rotation of the motor can be achieved, fan blades can be driven to periodically and reversely rotate, accumulated dust is promoted to be separated from the surfaces of the blades, and long-term efficient heat dissipation of the fan is maintained.

The utility model discloses a motor control circuit and a pedestal pan. The motor control circuit comprises a control module, a first switch module, a second switch module and an impedance module. The control module, the motor, the first switch module, the second switch module and the impedance module are electrically connected to the first node and the second node. The control module outputs a first voltage signal or a second voltage signal. The first switch module responds to the first voltage signal and establishes a path for current to flow from the first node to the second node, so that the motor rotates in the first direction. And the first switch module responds to the second voltage signal and establishes a path for the current to flow from the second node to the first node, so that the motor rotates in the second direction. The second switch module is turned on in response to the motor outputting back electromotive force to the first node to establish an electrical connection between the second end of the impedance module and the second end of the motor. By means of the mode, the closestool cover can be controlled to be normally closed and opened, and meanwhile slow descending of the closestool cover when the closestool cover is closed is achieved.

The utility model discloses a lubricating pump of a progressive lubricating system. The lubricating pump comprises a plunger pump component, an electric control board component, a plunger driving component and an oil storage barrel. The plunger pump component comprises a pump body, a plunger and an oil outlet one-way valve, a plunger hole, an oil suction hole and an oil outlet hole are formed in the pump body, one end of the oil suction hole is connected with the inner wall of the plunger hole, the other end of the oil suction hole is connected with the oil storage barrel, and the oil inlet side and the oil outlet side of the oil outlet one-way valve are connected with the plunger hole and the oil outlet hole respectively; the electric control plate component is electrically connected with the plunger driving component, and the plunger driving component is connected with the plunger, so that the electric control plate component controls the plunger driving component to drive the plunger to axially reciprocate along the plunger hole. The utility model not only has large oil output, but also has the advantages of simple structure, reliable work, compact layout and the like.

The utility model provides a system for automatic frequency conversion control of high-voltage equipment, which comprises an alternating-current power supply module and a direct-current control voltage output circuit which are connected with the input end of a frequency converter, and the output end of the frequency converter is connected with an alternating-current voltage regulator motor through a motor control circuit. The direct current control voltage output circuit composed of the upper computer and the analog quantity conversion module controls the frequency converter to output voltage so as to control the rotating speed of the motor of the alternating current voltage regulator, the frequency converter and alternating current motor voltage regulation control mode is used, compared with direct current motor speed regulation, the anti-interference capability is higher, and the control over the rotating speed of the motor of the alternating current voltage regulator is achieved. The problem that a carbon brush in the direct current motor is easy to damage is solved, the service life of the motor is longer, and compared with the direct current motor, the speed regulation range is wider, the circuit structure is simple and the reliability is high; an analog quantity conversion module in the direct-current control voltage output circuit can output a control instruction of the upper computer as direct-current control voltage, and output of the frequency converter is controlled through the direct-current voltage.

The present application relates to an electric-motor control system for a movable furniture unit. The electric-motor control system comprises an electric motor, a power source, a manually controlled switch and a pinch protection execution switch, wherein the pinch protection execution switch may be switched between a first execution position and a second execution position; at the first execution position, the electric motor is connected to the manually controlled switch by means of the pinch protection execution switch, and the polarity of a voltage that the power source applies to the electric motor is changed by means of switching the manually controlled switch; and at the second execution position, the electric motor is connected to the power source by means of the pinch protection execution switch, and the electric motor rotates and drives the furniture unit to extend so as to realize pinch protection. The present invention further relates to a pinch protection apparatus and a pinch protection system for a movable furniture unit, and the movable furniture unit.

The invention relates to a GIS driving system and a GIS, and belongs to the field of gas insulated switchgear design. The two motors are respectively connected with the three-position switch and the vacuum circuit breaker, the two motors are also respectively connected with the corresponding motor driving modules, and the corresponding PWM signals are sent to the corresponding motor driving modules through the driving controller, so that the corresponding motors rotate forwards or backwards, and therefore, the working efficiency is improved, and the working efficiency is improved. Therefore, switching among different stations of the three-station switch and opening and closing of the circuit breaker are realized.

The invention discloses an anti-pinch control method for a tail door of an electric automobile, and belongs to the technical field of electric automobiles. Comprising the steps of collecting and updating driving motor working data; anti-pinch pre-judgment is carried out; obtaining a time interval t1 when the anti-pinch pre-judgment takes effect; performing state estimation on the torque in the time interval t1 through a steady-state Kalman filtering algorithm; calculating a sliding square average value TM of the torque estimation value in the time interval t1; judging whether the motor is stable within the time interval t1 or not according to the torque estimation value; if so, calculating a torque dynamic threshold value Tth in a steady state; and comparing the TM with the Tth, and judging whether the anti-pinch function is started or not. According to the method, the motor torques under different tail gate loads of the electric vehicle are dynamically estimated through the steady-state Kalman filtering algorithm, and then the torque threshold value is dynamically adjusted, so that the anti-pinch control reliability is improved, and anti-pinch misjudgment is avoided.

A method of detecting forward and reverse connection of a three-phase motor is disclosed, including: turning on a first solid-state switch pair and a second solid-state switch pair into conduction for a predetermined period of time so that current can flow between a power supply and the three-phase motor; detecting output current of a solid-state motor starter; and determining the forward and reverse connection state of the three-phase motor based on the output current of the solid-state motor starter, in a case that currents exist at a first output terminal and a second output terminal, it is determined that the three-phase motor is in the forward connection state, and in a case that currents exist at the first output terminal and a third output terminal, it is determined that the three-phase motor is in the reverse connection state. Furthermore, a solid-state motor starter is disclosed.

This invention discloses a dual-drum adjustable-speed submarine cable laying and recovery winch and its usage method, including a base, a drum winch, a power system, and a clamping system. The base includes a working deck and a support frame. The working deck has circular holes and circular grooves. The support frame is mounted on the working deck. Rollers and cylindrical rollers are evenly distributed circumferentially within the circular grooves of both the working deck and the support frame. The drum winch includes an upper drum and a lower drum, which are rotatably connected in the circular grooves. The power system includes an upper motor and a lower motor, connected to both the upper and lower drums. The clamping system includes elastic clamps and electromagnet boxes. The elastic clamps are connected to the side walls of the upper and lower drums. Each elastic clamp has two electromagnet boxes at its end. This invention enables safe and efficient recovery of submarine cables, effectively protects the normal sections of the cable, and further saves space and cost.

This invention provides a motor control method, a motor control device, a readable storage medium, and a motor. The motor control method includes: setting a set speed and a set direction of rotation for the motor; acquiring the rotor position, operating speed, and operating direction of the motor while it is running; acquiring a first input value for the set speed and a second input value for the operating speed based on the operating direction, operating speed, set speed, and set direction of rotation; acquiring a target current based on the first and second input values; acquiring the actual current of the motor; acquiring a first control value based on the target current and the actual current; acquiring the chopping direction and duty cycle of the three-phase inverter bridge based on the first control value; acquiring the energizing phase sequence of the three-phase inverter bridge based on the operating direction of rotation; and controlling the motor operation using the three-phase inverter bridge based on the chopping direction, duty cycle, rotor position, and energizing phase sequence.

The utility model discloses a contactor contact adhesion protection circuit for positive and negative rotation of a motor, which relates to the technical field of motor control, and comprises a main circuit and a control circuit, the main circuit comprises a first contactor electrically connected with a three-phase alternating current power supply, and a second contactor and a third contactor which are respectively electrically connected with the first contactor, the second contactor and the third contactor are electrically connected with the motor respectively; the control circuit comprises an intermediate relay, a first switch and a second switch, only one of the first switch and the second switch is closed at the same time, the intermediate relay can be controlled to be switched on when any switch is closed, and after the intermediate relay is switched on, the first contactor and the second contactor or the first contactor and the third contactor are controlled to be switched on with different switches. When contacts in the first contactor, the second contactor and the third contactor are adhered, the intermediate relay cannot be conducted when the first switch or the second switch is pressed down, so that protection on a forward and reverse rotation circuit of the motor is realized, and safety accidents such as interphase short circuit are avoided.

The present invention provides a multi-contact motor forward and reverse control device, the structure of which includes a rotatable moving contact, an elastic telescopic rod, a sliding push rod and an electromagnetic assembly. The electromagnetic assembly serves as a driving force to achieve rapid switching of the moving contact position to control the forward and reverse rotation of the motor. The moving contact is designed to be connected with the fixed contact in succession; the sliding push rod cooperates with the reciprocating booster block on the back of the moving contact to achieve rapid and smooth movement of the moving contact. The device adopts a miniaturized design, has a compact structure, saves space, and is easy to install and integrate into various electrical control systems. In addition, the scraping effect of the moving contact during the connection process automatically cleans the fixed contact, effectively prevents contact welding, and enhances the safety of the system. The maintenance cost is low, the device is easy to disassemble and maintain, and can ensure safe disconnection even in the event of a reset spring failure, and is suitable for a wide range of industrial automation applications.

The embodiment of the utility model provides a motor control circuit and driving equipment. The motor control circuit comprises a controlled motor; the signal control module is used for sending an instruction signal, and the instruction signal is used for controlling the running state of the controlled motor; one end of each state control module is connected with a three-phase alternating current power supply for supplying power to the controlled motor, the other end of each state control module is connected with the signal control module, and each state control module is used for receiving the instruction signal and determining the started state control module according to the instruction signal; according to the started state control module, the controlled motor is controlled to operate according to the operation state indicated by the instruction signal; wherein the plurality of state control modules comprise a shared state control module, the shared state control module is kept open when the operation state of the controlled motor is changed, and the phase port of the controlled motor which correspondingly supplies power is not changed. By introducing a plurality of state control modules, the circuit structure is simpler, and the application range is wider.

The present invention relates to a pergola structure (100) comprising a frame (110), flat or inclined, defining a top opening (12), a covering element (10), such as a sheet, adapted to be displaced between a retracted position, wherein it leaves said top opening (12) essentially free, and an extended position, wherein it essentially covers said top opening (12), being superimposed thereto, and a drive and control unit (2, 2', 2'') for the motor-driven displacement of said covering element (10), said unit (2, 2', 2'') comprising at least a first electric motor (26) which can be powered to the mains voltage and comprising at least a first winding (AV1) and a second winding (AV2), said first motor (26) being adapted to be operatively associated with said covering element (10) to displace it between said retracted position and said extended position, and a first microcontroller (21) connected to said first motor (26) to determine the operating modes thereof. Said unit (2, 2', 2'') also comprises first detection means (24) associated with said first motor (26) and configured to detect, at the start of the first motor (26) determined by an input signal provided to said first microcontroller (21), a first signal (41) related to the supply current of the first winding (AV1) of the first motor (26) and a second signal (42) related to the supply current of the second winding (AV2) of the first motor (26), said first microcontroller (21) being adapted to interrupt the power supply to the first motor (26) upon detecting a phase shift variation (ΔB) between said first and said second signals (41, 42) greater than a reference value (X) set so as the interruption of the supply of said first motor (26) is performed when said covering element (10) reaches an extended and tensioned position. The present invention further relates to a method for the motor-driven displacement of a movable covering element (10) of a pergola structure (100) operated through a drive and control unit (2, 2', 2'') for automatically arranging said covering element (10) in an extended and properly tensioned position.