Abstract: Various embodiments of the present technology may provide methods and systems for position stabilization. The methods and systems for position stabilization may be integrated within an electronic device. An exemplary system may include a driver circuit responsive to a gyro sensor and a feedback signal from an actuator. The driver circuit may be configured to calibrate a gain applied to a drive signal based on the posture of the electronic device.

Abstract: A stand-alone motor unit includes a housing and an electric motor. The electric motor includes a stator, a rotor rotatable relative to the stator and having an output shaft, a housing in which the stator and rotor are arranged, and an adapter plate coupled to the housing. The adapter plate includes a first plurality of holes defining a first hole pattern. The output shaft of the rotor protrudes from the adapter plate. The motor unit further includes a battery pack for providing power to the motor, a power take-off shaft protruding from the housing, and a gearbox including a second plurality of holes defining a second hole pattern that is identical to the first hole pattern, such that when the first hole pattern is aligned with the second hole pattern, the gearbox is configured to be coupled to the adapter plate.

Abstract: A control system for a motorized valve. The control system comprises a backup circuit comprising energy storage means and a discharge gate through which the energy storage means can be selectively discharged to provide a discharge actuation pulse to the valve to cause the valve to move to a safe (e.g. closed) position. The backup circuit further includes an energy harvesting circuit for harvesting power from the power supply lines. The energy harvesting circuit is able to harvest sufficient energy within the duration for a single actuation pulse provided by the motor controller to charge the energy storage means from zero to a sufficient level to allow the backup circuit to generate at least one corresponding discharge actuation pulse for causing the valve to move to the safe position.

Abstract: A stand-alone motor unit for use with a piece of power equipment includes a housing and a flange coupled to the housing on a first side thereof. A plurality of apertures through the flange defines a first bolt pattern that matches an identical, second bolt pattern defined in the piece of power equipment. An electric motor has a power output of at least about 2760 W. The motor includes a stator having a nominal outer diameter of up to about 80 mm and a rotor supported for rotation within the stator. A power take-off shaft receives torque from the rotor and protrudes from one of the flange or a second side of the housing. A controller is positioned within the housing and electrically connected to the motor. A battery pack for powering the motor has battery cells having a nominal voltage of up to about 80 V.

Abstract: A motor control device according to the present disclosure is a motor control device configured to control voltage signals of a plurality of phases, the voltage signals being applied to an alternating-current motor, the motor control device including: a differential-value calculation unit configured to calculate the time differential value of a virtual line connecting peak values of each of phase voltage signals that are the voltage signals of the respective phases, the voltage signals being input to the alternating-current motor; a wavelength calculation unit configured to calculate the wavelength of each phase voltage signal input to the alternating-current motor from the time differential value; and a switching-signal generation unit configured to generate, based on the calculated wavelength, a signal that switches the phase of the alternating-current motor to which alternating-current voltage is applied.

Abstract: The present invention relates to control electronics, preferably for an electromechanical actuator, preferably for use in a primary flight control system of an aircraft, wherein the control electronics can connect or connects an electric motor, preferably of the electromechanical actuator, to an electrical or electronic load and/or wherein the control electronics can deactivate or deactivates a DC/DC converter supplying electrical power to the electric motor, and to an electromechanical actuator and to a method for damping the movement of an electromechanical actuator.

Abstract: A method of regulating a motor, including monitoring an absolute voltage value across an anode and a cathode of a triode via an analog switching circuit, the triode being configured to facilitate power a motor, activating a gate of the triode via the circuit in response to the absolute voltage value being greater than a predetermined threshold, and deactivating the gate of the triode via a switching circuit in response to the absolute voltage value being less than the predetermined threshold.

Abstract: Monitoring rotating machine position using a resolver having an input primary and one or more output secondaries magnetically coupled to the input primary. The method includes exciting the input primary with an exciter input signal, causing a first scaled version of the exciter input signal to appear in a first output secondary. Output from the first output secondary is collected. The collected output from the first output secondary is demodulated to recover gain from the input primary.

Abstract: A control device for a three-phase motor includes a drive circuit that converts DC power supply voltage into three-phase AC voltage and supplies the three-phase AC voltage to the three-phase motor, a first voltage detection unit that detects terminal voltage of three phases of the three-phase motor, and a control unit that detects a point at which a first voltage value, which is a detection value of the terminal voltage, intersects a predetermined zero-cross determination level as a zero-cross point, and controls the drive circuit based on a detection result of the zero-cross point. The control unit corrects the first voltage value by multiplying the first voltage value by a first coefficient inversely proportional to an output duty ratio with respect to the three-phase motor in a case where the output duty ratio is equal to or less than a predetermined threshold.

Abstract: Method for operating a DC motor, where the DC motor is supplied with a variable DC voltage via a bridge circuit from a supply voltage and formed by a first, a second, a third and a fourth controllable switch, wherein the DC voltage is varied by pulse width modulation of the control signals driving the controllable switches of the bridge circuit. A control arrangement drives the bridge circuit by pulse width modulation, after the first switch connecting the DC motor to the supply voltage has been switched off, switches on the second switch connected to a ground terminal, or vice versa. The control arrangement automatically inserts a drive pause between the first or second switch being switched off and the second or first switch being switched on, whereby a bridge circuit voltage present at the DC motor is limited by a resultant maximum settable duty cycle to a maximum value.

Abstract: A blower motor control device stops energization to a motor when a rotation speed of a rotor reaches a learn rotation speed, and acquires a correction amount as a new learn value for correcting a position error of the rotor relative to a Hall element by using an induced voltage in a coil of the motor and a detection signal from a rotation sensor. The blower motor control device stores the new learn value in a ROM. The blower motor control device corrects the position error by using a previous learn value read from the ROM, for energization control of the motor, until the rotation speed reaches the learn rotation speed.

Abstract: The present disclosure provides a portable power generating system configured to utilize self-sustained energy to provide velocity and movement to turn a central tubular axle which is encompassed by two or more magnets spread evenly around the circumference of the axle to generate motion. The motion of the revolving magnets turns the armature of one or more DC power generating motors which in turn produce electricity. The central tubular axle supported by two DC power generating motors are connected to each end of the central tubular axle. One of the DC power generating motors revolves in a clockwise direction during operation and the DC power generating motor at the opposite end of the central tubular axle is configured to operate in an anti-clockwise motion during operation.

Abstract: A motor control device performs driving control of a motor via a drive circuit that converts a power supply voltage of a direct current power supply into a drive voltage of the motor. The motor control device includes a voltage measurement circuit that measures the power supply voltage. The motor control device acquires a detection signal correlated with a current value that is output from a current detection circuit.

Abstract: A motor control device includes a control unit and a generation-method changer. The control unit generates a driving signal for driving a motor in accordance with a command signal and an encoder signal and outputs the generated driving signal to the motor, the command signal being a signal for setting the position of a moving part connected to the motor to a target position, the encoder signal indicating the position of the motor detected by an encoder. The generation-method changer changes a method used by the control unit to generate the driving signal in accordance with a position sensor signal indicating a detected target position that is the target position detected by a position sensor mounted on the moving part.

Abstract: A technique provides power-limiting regenerative braking to a utility vehicle. The technique involves detecting that the utility vehicle is moving in a forward direction at a first speed. The technique further involves applying a first regenerative braking power level to the utility vehicle in response to detecting that the utility vehicle is moving in the forward direction at the first speed. The technique further involves detecting that the utility vehicle is moving in the forward direction at a second speed which is less than the first speed. The technique further involves applying a second regenerative braking power level to the utility vehicle in response to detecting that the utility vehicle is moving in the forward direction at the second speed. The second regenerative braking power level is lower than the first regenerative braking power level.

Abstract: A method, apparatus, and control system are described for operating a multiphase motor drive system including a rotary electric machine and an inverter. An AC choke filter is arranged proximal to output leads from the inverter. A reference temperature associated with the AC choke filter is determined along with an operating point of the electric machine. Operation of the inverter is controlled based upon a temperature of the AC choke filter, the reference temperature, and an operating point of the electric machine. This includes modifying a switching frequency and a PWM type in a manner that reduces the AC choke filter temperature by reducing the occurrence of switching events to protect the AC choke filter based on temperature feedback.

Abstract: A method for protecting a motor from overheating, includes: running a motor in a given parameter P and detecting a real-time temperature R of the motor; comparing the real-time temperature R with a plurality of set temperatures, the plurality of set temperatures including an overheating protection temperature Rm, shutdown temperature Rmax and recovery operation temperature Rmin, Rmin<Rm<Rmax; according to a comparison result, controlling the motor to operate at an initial current value I0, or operate in a reduced current value with respect to the initial current value I0, or stop running; and when the real-time temperature R meets the condition: Rm<R<Rmax, running the motor in an overheating protection mode, where the motor operates in a current value I lower than the initial current value I0, and the current value I decreases with the increase of the real-time temperature R.

Abstract: A diagnostic voltage or current path can be used for each MEMS actuator control channel to detect and diagnose faults in the actuator control signal path. Multiple measurement points provide additional capabilities of isolating faults among multiple subassemblies or components in the control signal path. The diagnostic voltage or current path uses ADC(s) and multiplexers to monitor multiple control channels and/or multiple measurement points in each control channel. Digitized voltages, or currents in the case of magnetic actuators, read from the diagnostic ADC are compared to expected values to detect and isolate faults.

Abstract: A motor driving system and a method of controlling same can protect a user by converting a driving mode into a dual inverter driving mode so that a vehicle can keep being driven when a transfer switching unit breaks down while the motor is operated in a Y-connection single inverter driving mode.

Abstract: A method of controlling a brushless permanent magnet motor includes determining a motor operating target. The method includes comparing the motor operating target to a set of pre-determined excitation timing parameter relationships. The method includes operating the motor in accordance with an excitation timing parameter relationship determined from the set of pre-determined excitation timing parameter relationships to provide a motor operating response close to the motor operating target. The method includes measuring a measured motor operating response, comparing the measured motor operating response to the motor operating target, and applying a correction factor to an excitation timing parameter of the motor when the measured motor operating response does not match the motor operating target, such that the measured motor operating response moves toward the motor operating target.