The invention relates to a motorized conveyor roller, comprising a roller body mounted so as to be able to rotate about a roller axle, a drive unit arranged inside the roller body and designed to generate a rotational movement about the roller axle between an axle element and the roller body. The invention is characterized by a control unit that is arranged inside the roller body and that is designed to receive a state signal from outside the roller body, to generate a control signal that describes a drive characteristic on the basis of the state signal, to control the drive unit by way of the control signal, to generate a self state signal that describes the state signal and/or the drive characteristic, and to transmit this self state signal outside the roller body.

A position control method for a servo, includes: receiving, from a control terminal, a motion control command that comprises a motion planning parameter about position of an output shaft of the servo; acquiring speed information or time information indicated by the motion planning parameter, and determining a constant parameter control duration according to the speed information or time information; determining a control parameter corresponding to a constant parameter control stage according to the constant parameter control duration and a preset constant parameter; performing a transient adjustment to the servo when the constant parameter control stage ends, and changing the control parameter to an adaptive operation parameter when the transient adjustment ends; and controlling a rotation angle of the output shaft of the servo to perform a position control of the servo, based on duration values and control parameters corresponding to each of a plurality of control stages.

A motor control system includes motor control apparatuses and position detectors. Each of the motor control apparatuses is configured to control at least one of the motors. The position detectors each of which corresponds to each of the motors and each of which is configured to detect position information of each of the motors. All of the plurality of position detectors are connected in series under a control of a first motor control apparatus among the motor control apparatuses. The first motor control apparatus is configured to transfer the position information of the motors read out from the position detectors to other motor control apparatuses among the motor control apparatuses.

Techniques for managing a distributed control system for a motor control switch are described. A request to implement a first controller for a motor control switch is received. Embodiments determine a plurality of functional modules for the first controller. Each of the plurality of functional modules comprises an instance of computer logic configured to perform a respective function. A respective Motor Control Function Set (MCFS) for performing the respective function of each of the plurality of functional modules is determined. One or more of a plurality of configurable hardware blocks are allocated to each of the plurality of functional modules. Embodiments configure each of the plurality of configurable hardware blocks based on the MCFS of the functional module to which the respective configurable hardware block is allocated. The configured plurality of configurable hardware blocks is executed as a distributed system to control the motor control switch.

A method for reducing a total operational load of a method of a model predictive control-by conducting simplifications based on specific observations, in order to drive alternating current motors by using the method of the MPC with a two-level voltage source inverter. The method includes the steps of determining at which one of the predefined sectors a resultant of stator currents is present, determining a motor mode, reducing seven estimation vectors to four estimation vectors and calculating a cost function or reducing seven estimation vectors to five estimation vectors and calculating the cost function.

There is provided an electric power tool including: an electric motor; a communication device; and a first controller including a first storage section configured to store a control program for driving the electric motor, a second storage section configured to store an update program of the control program that is to be received by the communication device, and a processor configured to drive the electric motor by executing the control program after the communication device starts reception of the update program.

A voltage saturation prevention algorithm used as at least part of a method of controlling an electric vehicle, wherein the electric vehicle comprises an electric motor, a controller, and an inverter. The controller receives a control signal with an instruction to operate the electric motor, then sends a switching signal corresponding to the control signal to the inverter, wherein the inverter provides a plurality of output signals for operation of the electric motor. The method includes determining the expected amplitude of the plurality of output signals based on the instruction to operate the electric motor, calculating the amount of modification of the plurality of output signals required to prevent the expected amplitude from reaching a saturation value, and modifying, based on the calculation, the instruction to operate the electric motor to prevent the expected amplitude from reaching the saturation value. The method is implemented in software, without any additional hardware.

A method for reducing a total operational load of a method of a model predictive control-by conducting simplifications based on specific observations, in order to drive alternating current motors by using the method of the MPC with a two-level voltage source inverter. The method includes the steps of determining at which one of the predefined sectors a resultant of stator currents is present, determining a motor mode, reducing seven estimation vectors to four estimation vectors and calculating a cost function or reducing seven estimation vectors to five estimation vectors and calculating the cost function.

The invention relates to a motorized conveyor roller, comprising a roller body mounted so as to be able to rotate about a roller axle, a drive unit arranged inside the roller body and designed to generate a rotational movement about the roller axle between an axle element and the roller body. The invention is characterized by a control unit that is arranged inside the roller body and that is designed to receive a state signal from outside the roller body, to generate a control signal that describes a drive characteristic on the basis of the state signal, to control the drive unit by way of the control signal, to generate a self state signal that describes the state signal and/or the drive characteristic, and to transmit this self state signal outside the roller body.

A setting support device according to the present invention is provided with: a first identification means that identifies an evaluation index value indicating the stability or control performance of motor control by a motor control device in each of a plurality of load device states in which a load device is in mutually different orientations or situations; a second identification means that identifies, for each control device state, a combined evaluation index value representative of the evaluation index values in the plurality of load device states, identified for that control device state by the first identification means; and a recommended-value output means that identifies and outputs a recommended value of at least one control parameter on the basis of the combined evaluation index value identified for each control device state by the second identification means.