Abstract: A device and a method for determining a travel path for at least one mover on a drive surface, the mover comprising at least one second magnetic field generator, the device comprising a plurality of plate-shaped sectors, where the sectors comprise magnetic field generators for generating magnetic fields, and where the sectors form the drive surface. At least one virtual path network is provided on the drive surface, where a travel path for a mover is determined on the path network.

Abstract: One embodiment provides a remotely controllable gas engine replacement device including a housing, a battery receptacle coupled to the housing, the battery receptacle configured to removably receive a battery pack, a motor located within the housing, a power take-off shaft receiving torque from the motor and protruding from a side of the housing, a power switching network configured to selectively provide power from the battery pack to the motor, and one or more remote control device interfaces configured to communicate with the remote control device. The remotely controllable gas engine replacement device also includes an electronic processor coupled to the power switching network and the remote control device interface. The electronic processor configured to control the power switching network to rotate the motor, receive a control signal from the remote control device, and execute a responsive action to the control signal from the remote control device.

Abstract: Various embodiments of systems and methods for remote monitoring and controlling of electrochromic glass are described. In some embodiments, a device monitoring and control system can receive messages via a communication hub from a plurality of remote installation sites for electrochromic glass units. The messages include telemetry data associated with the electrochromic glass units. The system can stream the telemetry data to a data analytics engine that can perform analytics functions on the telemetry data. The system provides results of the analytics functions to remote destinations via a data analytics interface. The system can also receive, via a control interface, control instructions from remote sources to control one or more of the electrochromic glass units. The system can transmit control messages to the installation sites to implement the control instructions. The system can also establish a connection for a requestor to an installation site using a site's specific connection protocol.

Abstract: A method controls the current output of a battery for driving a rail vehicle. A battery actual current Ibat,ist passes via a converter to an asynchronous motor, being a drive for the vehicle. The battery actual current Ibat,ist is set by control circuits as a function of a feedforward control torque Mff and a specified torque Mtf. The feedforward control torque Mff is calculated using a transfer function Hsys(z), which maps the torque setpoint value Msoll onto the battery actual current Ibat,ist as follows: Ibat(z) Hsys(z) Msoll(z). Accordingly, a zero-point z=znmp, which lies outside the unit circle, is determined by the transfer function Hsys(z). The feedforward control torque Mff is calculated as follows: Mff(z) Ibat,neu(z)/(Hsys(z) z) where: Ibat,neu(z)=Ibat,ideal(z) Ibat,ideal(z=znmp) where: Ibat,neu[n]=Ibat,ideal[n] for all n>0, so that pole point/zero point cancellation is reached by z=znmp at the battery ideal current.

Abstract: A safety apparatus and method for monitoring the position of a servo joint in a servo joint driving system are introduced. The safety apparatus includes modules for measuring powerline signals to determine a servo motor position and/or speed safely. By analyzing the synchronization between the motor and powerline signals, loss of synchronization, unexpected resistance experienced by the motor, and other fault conditions are detected so that power can be cut from the servo motor for safety. The safety apparatus and method achieve a functional safety position and/or speed generating and monitoring and reduce reliance on expensive position sensors and encoders. Robots utilizing the safety apparatus and a method of its use are also disclosed.

Abstract: An electric motor control system includes a master control module, a drive module, and a monitoring module. The master control module is configured to output a low-voltage drive signal to the drive module, the drive module converts the low-voltage drive signal into a high-voltage drive signal and outputs the high-voltage drive signal to a power unit, and the power unit outputs, according to the high-voltage drive signal, a power supply drive signal provided by a high-voltage battery. The monitoring module is electrically connected with the master control module and the drive module, and is configured to acquire the low-voltage drive signal, and output a fault signal to the master control module when the low-voltage drive signal is abnormal, to control the master control module to stop outputting the low-voltage drive signal.

Abstract: A drive system for a hybrid or electric vehicle includes an electrical energy source; an electric machine, a switching device linked to the electric machine and selectively switchable between a first configuration, and a second configuration, an adjusting device linked to the electric machine and configured to vary its operating parameters, and a control unit. The first electrical configuration includes a first number of conductors in series by phase supplying a first driving torque with a first knee speed and a first no-load operation speed. The second electrical configuration includes a second number of conductors in series by phase supplying a second driving torque, lower than the first driving torque, and a second knee speed higher than the first knee speed. A ratio between the first no-load operation speed and the second knee speed is between 0.7 and 1.3.

Abstract: A failure diagnostic system of a motor encoder is disclosed and includes a motor, an encoder, a servo driver, and a safety module. The servo driver controls the motor through a current command. The safety module continuously obtains a feedback position of the motor through the encoder. When the safety module determines based on the feedback position that the current state of the motor is consistent with a pre-determined disturbance condition, the safety module requests the servo driver to output an additional current command to disturb the motor. Next, the safety module determines whether the encoder is failure based on a variation of following feedback position.

Abstract: An appliance, as provided herein, can include a direct current load and a current sensing circuit that can be coupled to the direct current load. The current sensing circuit can be configured to collect electrical data corresponding to the direct current load. The appliance can include one or more processors that can be coupled to the current sensing circuit. The one or more processors can be configured to identify at least one attribute of the direct current load based, at least in part, on the electrical data and activate at least one operation of the direct current load or the appliance based, at least in part, on identification of the at least one attribute of the direct current load.

Abstract: Reduced computation time for model predictive control (MPC) of a five level dual T-type drive considering the DC link capacitor balancing, the common-mode voltage (CMV) along with torque control of an open-ends induction motor based on determining a reduced set of switching states for the MPC. The reduced set of switching states are determined by considering either CMV reduction (CMVR) or CMV elimination (CMVE). Cost function minimization generates a voltage vector, which is used to produce gating signals for the converter switches. The reduced switching state MPC significantly reduces computation time and improves MPC performance.

Abstract: Actuators for carrying and actuating a lens having a first optical axis, the lens receiving light folded from a second optical axis substantially perpendicular to the first optical axis, comprising first and second VCM engines coupled to the lens and first and second linear ball-guided rails operative to create movement of the lens in two substantially orthogonal directions upon actuation by respective VCM engines.

Abstract: Disclosed are an apparatus and method for controlling a motor. An exemplary embodiment of the present disclosure provides an apparatus for controlling an operation of a motor, the apparatus including: a first motor control unit connected to a first winding part of the motor and configured to control the operation of the motor; and a second motor control unit connected to a second winding part of the motor and configured to control the operation of the motor, in which the first motor control unit turns on or off current paths formed between the first motor control unit and the motor by controlling switches included in the first motor control unit, and the second motor control unit turns on or off current paths formed between the second motor control unit and the motor by controlling switches included in the second motor control unit.

Abstract: Linear electric motor comprising a stator comprising a plurality of stator segments and a drive system comprising at least one pair of drive units, a first drive unit of said pair connected to a first stator segment and a second drive unit of said pair connected to a second stator segment adjacent the first stator segment, the drive units connected to a DC voltage source, each drive unit comprising a DC input circuit section and a multi-level inverter connected to the DC voltage source via the DC input section, the multi-level inverter comprising a multiphase output connected to coils of the corresponding stator segment. The DC circuit section of the drive units comprises at least two link capacitors (C1, C2) connected between a positive and a negative voltage supply line (V+, V?) and having a mid-point therebetween.

Abstract: Disclosed are a current detection circuit and a garbage can. The current detection circuit may include: a first switching device for being connected with a first current driving end of the direct current motor; a second switching device for being connected with a second current driving end of the direct current motor; a third switching device for being connected with the second current driving end of the direct current motor; a fourth switching device for being connected with the first current driving end of the direct current motor; a control chip, the first switching device, the second switching device, the third switching device and the fourth switching device are all electrically connected with the control chip; and a current detection module, the control chip is connected to a detection output end of the current detection module.

Abstract: The vibration and noise generated in a permanent magnet synchronous motor are effectively suppressed. A motor control device 1 comprises: a triangular wave generation unit 17 which generates a triangular wave signal Tr that is a carrier wave, a carrier frequency adjustment unit 16 which adjusts a carrier frequency fc that represents a frequency of the triangular wave signal Tr, and a gate signal generation unit 18 which performs pulse-width modulation on three-phase voltage commands Vu*, Vv*, Vw* according to a torque command T* using the triangular wave signal Tr, thereby generating a gate signal for controlling an operation of an inverter. The carrier frequency adjustment unit 16 adjusts the carrier frequency fc so as to change a voltage phase error ??v representing a phase difference of the three-phase voltage commands Vu*, Vv*, Vw* and the triangular wave signal Tr based on the torque command T*, and a rotation speed ?r of a motor.

Abstract: A driving related system that may include an integrated circuit (IC) that may include IC conductors and test unit; a PCB that may include PCB conductors; intermediate conductors for coupling the IC conductors to the PCB conductors; wherein the test unit is configured to: electrically test a continuity of a first conductive path that comprises a first group of intermediate conductors, a first group of IC conductors and a first group of PCB conductors; and generate a continuity fault indication when detecting a discontinuity of the first conductive path; and wherein the driving related system is configured to perform a safety measure, in response to a generation of one or more continuity fault indications.

Abstract: A method of calibrating a motor assembly includes selecting an electric motor and a motor controller for the motor assembly, obtaining at least one electric motor parameter of the electric motor, calculating a correction factor for the electric motor based upon the at least one electric motor parameter, and programming the motor controller with the correction factor.

Abstract: A method for transmitting data from an actuator to a control unit controlling the actuator. The control unit controls a piezoelectric element contained in the actuator. In order to transmit the data, in the actuator, a load being or not being connected in parallel with the piezoelectric element.

Abstract: A method of controlling a permanent magnet synchronous machine (PMSM) includes: determining an estimated back-electromotive force (BEMF) generated in windings of the PMSM based on an estimated voltage applied to the windings of the PMSM, an estimated motor current of the PMSM, an estimated motor circuit resistance, and an estimated synchronous inductance of the PMSM. The method also includes determining an estimated permanent magnet (PM) flux linkage in the PMSM based on the estimated motor current of the PMSM; determining a BEMF correction term based on the estimated PM flux linkage; and determining an estimated rotor flux space vector based on the estimated BEMF and the BEMF correction term.

Abstract: A representative fault-tolerant rotating electromechanical actuator comprises a permanent magnet synchronous motor with first and second windings that each comprise three phases. First and second voltage source inverters (VSI) provide output signals independently with respect to each other. The first VSI provides output signals to drive the three phases of the first winding, and the second VSI provides output signals to drive the three phases of the second winding. The three phases of the first winding are driven simultaneously with the three phases of the second winding. Control electronics monitor signals associated with the three phases of the windings and detect a fault condition within a first phase of the first winding. The control electronics command the first VSI to drive only second and third phases of the first winding while simultaneously commanding the second VSI to drive the three phases of the second winding.