The present utility model belongs to the technical field of electric control, in particular to a device for remotely driving and controlling an electromechanical mechanism based on a hand driver. In this solution, a hand driver, a motor unit and a power supply generated by the driver are used to remotely control the electromechanical mechanism to work in real time. Through each functional module, the motor in the remote motor unit can be controlled to rotate as long as the hand driver is cranked, thus driving the electromechanical mechanism or all devices driven by the motor; the crank of the driver can rotate the driver by hand or by foot; power is generated by the remote hand driver and supplied to the motor of the driven device; the rotation of the motor drives the electromechanical mechanism or the door to move; a movable part of the driven device is equipped with a gravity sensor connected with the driven motor, and when the electromechanical mechanism or the door clamps a creature, the gravity sensor will cut off the external power supply of the motor, stop the motor and stop the device from working, so as to protect the creature and allow it to have time to escape from the danger zone.

A motor control method inputs one or more controlled variables or target values each representing a state of a motor to one or more node layers as an input value, and performs calculation in each of the one or more node layers to output one or more manipulated variables used for control of the motor and control the motor in accordance with the one or more manipulated variables. Each the one or more node layers has a plurality of nodes that execute calculations in parallel. Each of the plurality of nodes multiplies the input value by a coefficient specified for the corresponding node, and performs calculation using a function specified for the corresponding node and designating a multiplied value as an input variable to determine an output value.

A motor control method inputs one or more controlled variables or target values each representing a state of a motor to one or more node layers as an input value, and performs calculation in each of the one or more node layers to output one or more manipulated variables used for control of the motor and control the motor in accordance with the one or more manipulated variables. Each the one or more node layers has a plurality of nodes that execute calculations in parallel. Each of the plurality of nodes multiplies the input value by a coefficient specified for the corresponding node, and performs calculation using a function specified for the corresponding node and designating a multiplied value as an input variable to determine an output value.

A fan and a motor drive device thereof are provided. The motor drive device is configured to drive a motor and includes a control management unit and a voltage converter. The control management unit classifies target rotation speed signals provided by an ECU into multiple rotation speed ranges, each corresponding to a specific output duty ratio. The control management unit receives a target rotation speed signal transmitted from the ECU in a real-time manner, and output a voltage regulating signal, which is a pulse width modulation signal having a duty ratio corresponding to one of the rotation speed ranges in which the target rotation speed signal transmitted from the ECU falls. The voltage converter is connected between a power source and the motor, and is configured to regulate a voltage outputted to the motor in response to the voltage regulating signal having the specific duty ratio outputted from the control management unit, to regulate a rotation speed of the motor.

A magnetic pole detection circuit includes a multi-phase voltage divider unit, a filter unit, a DC level compensation unit, an amplifying unit, and a hysteresis comparison unit. The multi-phase voltage divider unit is configured to detect a back electromotive force (EMF) signal of a multi-phase motor. The filter unit is configured to filter the back EMF signal to generate a filtered signal. The DC level compensation unit is configured to compensate a DC level of the filtered signal to generate a compensation signal. The amplifying unit is configured to amplify the compensation signal to generate an amplified signal. The hysteresis comparison unit is configured to generate a zero-crossing point signal according to the amplified signal and a reference signal. The zero-crossing point signal is adapted to control an excitation mode of the multi-phase motor.

A magnetic pole detection circuit includes a multi-phase voltage divider unit, a filter unit, a DC level compensation unit, an amplifying unit, and a hysteresis comparison unit. The multi-phase voltage divider unit is configured to detect a back electromotive force (EMF) signal of a multi-phase motor. The filter unit is configured to filter the back EMF signal to generate a filtered signal. The DC level compensation unit is configured to compensate a DC level of the filtered signal to generate a compensation signal. The amplifying unit is configured to amplify the compensation signal to generate an amplified signal. The hysteresis comparison unit is configured to generate a zero-crossing point signal according to the amplified signal and a reference signal. The zero-crossing point signal is adapted to control an excitation mode of the multi-phase motor.

A drive device for operating an electrical machine has a regulator for driving a rotor winding, which has a highside switch and a de-energization switch. A first terminal of the rotor winding can be connected to a positive supply terminal via the high-side switch, the first terminal of the rotor winding can be connected to a negative supply terminal via a semiconductor component, and a second terminal of the rotor winding can be connected to the negative supply terminal via the de-energization switch. The drive device is arranged to enter a safe state in the presence of at least one fault by disconnecting and/or de-energizing the rotor winding from the positive supply terminal. At least one of the switches is designed to be redundant; and/or the regulator has a plurality of measuring points.

A drive device for operating an electrical machine has a regulator for driving a rotor winding, which has a highside switch and a de-energization switch. A first terminal of the rotor winding can be connected to a positive supply terminal via the high-side switch, the first terminal of the rotor winding can be connected to a negative supply terminal via a semiconductor component, and a second terminal of the rotor winding can be connected to the negative supply terminal via the de-energization switch. The drive device is arranged to enter a safe state in the presence of at least one fault by disconnecting and/or de-energizing the rotor winding from the positive supply terminal. At least one of the switches is designed to be redundant; and/or the regulator has a plurality of measuring points.

A controller includes a control unit which stops a transfer mechanism in a case where the value of a deterioration indication parameter has exceeded a preset threshold, and determines whether or not an event in which the value of the deterioration indication parameter has exceeded the preset threshold is attributed to deterioration of the transfer mechanism which has progressed over time based on a change pattern of time series data of the value of the deterioration indication parameter, and causes the transfer mechanism to operate at a reduced operation speed, in a case where the control unit determines that the event in which the value of the deterioration indication parameter has exceeded the preset threshold is attributed to the deterioration of the transfer mechanism which has progressed over time.

Disclosed herein are various embodiments of devices and related methods for detecting an electrical arc event using a motor management relay and for suppressing the electrical arc event. The motor management relay may incorporate an optical arc-flash sensor configured to detect an optical event. Control logic may analyze the optical event and determine whether the optical event corresponds to an electrical arc event. When an electrical arc event is detected an instruction may be issued via a control port in communication with the control logic to implement a protective action. According to various embodiments, a plurality of sensors for monitoring electrical characteristics of a motor may also be in communication with the control logic. Input from the sensors may be analyzed in order to determine whether the optical event corresponds to an electrical arc event.