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Matches 1 - 50 out of 7,969

Document Document Title
WO/2018/068988A1
The invention relates to a method for operating an inverter (10, 48, 50) for coupling an electric machine (12, 46) which is designed for operation on AC voltage, with an AC voltage network (16), comprising the steps: - determining a torq...  
WO/2018/068390A1
An electric motor driving system with no electrolytic capacitor, and a field weakening control method and control apparatus thereof. The method comprises: acquiring a current direct-current bus voltage in an electric motor driving system...  
WO/2018/062096A1
When an estimated rotational speed becomes lower than or equal to a predetermined rotational speed, a control unit 76 of a motor control device 70 increases the voltage to be applied to a coil 53 on the basis of a control signal for incr...  
WO/2018/058956A1
Disclosed are a control method and device based on an alternating-current electric motor control circuit, and an air conditioner. The control method comprises: acquiring a target rotational speed of an alternating-current electric motor ...  
WO/2018/062083A1
Disclosed is a control device 70 that controls a motor unit 20 including a stator 50 that includes a coil 53, and a rotor 40 that includes a permanent magnet 44. The control device comprises: a detection unit 71 that detects the rotation...  
WO/2018/055691A1
Disclosed are a motor control system and a motor control method that allow the balance of evaluation values in a trade-off relationship to be easily adjusted. The motor control system includes: an inverter (5) that applies AC voltage to ...  
WO/2018/047524A1
This motor control method comprises: a step in which an α-axis component BEMFα and a β-axis component BEMFβ of the back electromotive force of a motor in an αβ fixed coordinate system are acquired; a step in which the α-axis compo...  
WO/2018/047916A1
A shift range control device (40) that comprises a feedback control unit (60), a feedback value setting unit (63), a fixed-phase electrification control unit (70), and a switching control unit (75). The feedback control unit (60) perform...  
WO/2018/049074A1
A power management unit receives AC power and, via an AC-DC-AC converter, provides an AC motor signal to a three-phase induction motor. Sensors in the power management unit provide data to a digital signal processor ("DSP"). The data inc...  
WO/2018/042895A1
Provided are a control device and a control method for a rotary electric motor, which can reliably inhibit vibration of the rotary electric motor, as well as a rotary electric motor drive system. PWM control is performed on the rotary el...  
WO/2018/042389A1
Techniques for limiting electrical current provided to a motor for an electric power steering system are provided. A first estimated temperature of the motor is determined for a first time step. The first estimated temperature of the mot...  
WO/2018/035777A1
A method and system for determining a voltage in a horizontal winding machine, the method comprising the following steps: detecting a state of a horizontal winding machine (S101); receiving a control command of an operator for the horizo...  
WO/2018/035776A1
A vertical winding machine voltage acquisition method and system, the method comprising the following steps: detecting a state of a vertical winding machine (S101); receiving a control command of an operator for the vertical winding mach...  
WO/2018/038929A1
A damping system can include a sensor disposed to measure an amplitude of a speed ripple of a drive shaft of a generator, and can include a feed forward circuit connected to the sensor and to the generator. The feed forward circuit can d...  
WO/2018/031071A1
Compressors in a refrigerant loop are driven by variable frequency drives. The variable frequency drives are configured to demand current from an alternating current power source at different phases relative to one another such that at l...  
WO/2018/011863A1
An inverter device 1 is provided with a converter circuit unit 11, an inverter circuit unit 12, and a current detection unit 13. The inverter device 1 is provided with: a calculation unit 14 that calculates a frequency command value on t...  
WO/2018/010563A1
A motor control circuit and a high-speed blender. The motor control circuit comprises a controller (100), a rotation speed detection circuit (200), a switch circuit (300), and a motor (400). The switch circuit switches off or switches on...  
WO/2018/003201A1
According to the present invention, a low-range torque controller 9 outputs a low-range torque controller output τdc* on the basis of a torque command value τ* and a torque detection value τdet, while a vibration torque controller 11 ...  
WO/2018/003500A1
Provided is an elevator control device with which unbalance torque after brake release can be estimated in a short amount of time and corrected, whereby startup shock and car rollback can be stabilized and reduced. The present invention ...  
WO/2017/220390A1
The invention relates to a method (300) and a device (170) for reducing mechanical loads in a powertrain (100). An electric machine (130) is provided as the drive assembly of the powertrain (100), and an inverter (110) is provided in ord...  
WO/2017/221453A1
Provided is a power conversion device that: determines the site of a ground fault in a motor and cable; and reports the determination results to a user, external device, or system. This power conversion device comprises a plurality of sw...  
WO/2017/220234A1
The present invention provides control for synchronous machines in order to achieve an approximately constant torque irrespective of the load angle. The induced voltage of the synchronous machine rotating with a zero-current of the stato...  
WO/2017/221689A1
Drive force of an electric motor (10) is transmitted to an output shaft (15). A trough formation member (21), in which are formed troughs (211-214) that correspond to shift ranges, rotates integrally with the output shaft (15). An engagi...  
WO/2017/221595A1
Provided is a capacitor-start single-phase induction motor with which a large startup torque can be obtained. This single-phase induction motor is equipped with: a main coil; an auxiliary coil connected in parallel to the main coil; a ca...  
WO/2017/215531A1
Provided is an electromagnetically driven swing plate apparatus (100), comprising: a swing plate (110); a drive coil (120) for receiving a drive signal and using the drive signal to drive the swing plate (110) to swing, wherein, when a f...  
WO/2017/215450A1
A motor controller (10), comprising: a DC/AC bidirectional conversion unit (101), a drive switch K1, a power grid switch K2, a single-phase interface unit (102) and a control unit (103); the DC/AC bidirectional conversion unit (101) comp...  
WO/2017/212794A1
A speed estimation apparatus 101 for an AC motor 2 is characterized by being provided with: a model deviation calculation unit 11 that calculates model deviation on the basis of the voltage, the current, and the estimated angular velocit...  
WO/2017/208701A1
In order to obtain a motor control device which allows a filter to be easily adjusted to maximize a speed control band thereof, the device comprises: an oscillation instruction unit (103) which outputs an oscillation instruction signal; ...  
WO/2017/195883A1
[Problem] To provide an electric power steering apparatus (including a vector control system) which attenuates the power spectrum occurring from the relationship between the calculation period of a torque control system and the calculati...  
WO/2017/186259A1
In order to improve a method for selecting a frequency converter for a coolant compressor unit, comprising a coolant compressor and an electric drive motor, in such a way that the frequency converter is selected in an application-optimis...  
WO/2017/186319A1
The invention relates to a method for switching off a polyphase electrical machine (110) in a motor vehicle, wherein the polyphase electrical machine (110) has a rotor with a rotor winding (101) and a stator with a polyphase stator windi...  
WO/2017/183231A1
This electric vehicle control method is used to control the torque of a motor on the basis of the final torque command value, wherein the final torque command value is calculated by applying vibration suppression control, that is, contro...  
WO/2017/180484A1
A motor drive and method to control a motor in a fluid system. The method may comprise determining a pressure; determining a proportional error as a limited difference between the pressure and a pressure setpoint; determining an integral...  
WO/2017/177847A1
Disclosed are an alternating current controller, a laminated bus bar assembly and a manufacturing method therefor, which relate to the field of electric appliance assemblies. The alternating current controller comprises a laminated bus b...  
WO/2017/169170A1
This method, for determining a characteristic feature quantity of a three-phase induction motor required for calculation of a deterioration parameter used in diagnostics of a rotary mechanical system for which the three-phase induction m...  
WO/2017/161614A1
A multiphase alternating current electric motor structure and a driving circuit thereof. The electric motor structure comprises a stator iron core and a stator coil unit wound thereon, wherein the stator coil unit is composed of two or m...  
WO/2017/152938A1
A method (400) of determining equivalent circuit parameters of a three phase induction motor is provided. The method (400) comprises applying (410) a current to a stator winding (362) of an induction motor (360), and varying (420) a volt...  
WO/2017/144238A1
Electric motor, in particular induction motor, comprising a stator, a rotor and a control device which is arranged at the rotor. The three rotor windings are connected to a Rotor Control device with inverter and controller unit mounted o...  
WO/2017/141939A1
A motor control device is provided with: an electric motor which drives an imparting mechanism TFK for imparting torque to the wheels of a vehicle, and has three coils CLU, CLV, CLW; a drive circuit DRV that supplies current individually...  
WO/2017/140455A1
During normal operation, a control device (2) determines a manipulated variable (S) for a drive unit (1) on the basis of a desired variable (x*) and a real variable (x) for said drive unit (1) and applies said manipulated variable (S) to...  
WO/2017/136510A1
A method of controlling a motor may include receiving command data indicating only a desired torque and/or force for the motor and including no torque and/or force or current feedback data from the motor. Based on the command data and at...  
WO/2017/133786A1
The present invention relates to a control circuit capable of simultaneously driving a plurality of brushless dc motors. The present invention more particularly relates to a converter circuit for driving a first brushless DC electric mot...  
WO/2017/126639A1
The purpose of the present invention is to improve the abnormality detection ability of a current sensor. An abnormality detection device for a current sensor 16 detects whether a single current sensor 16 is abnormal or not, said current...  
WO/2017/126093A1
The objective is to manage the temperature of components such as a stator, a rotor or the like forming a motor and, when an overload is detected in a specific region, to use that as a trigger for reporting a motor overload or for a speci...  
WO/2017/126095A1
Provided is a speed control device for an electric motor, said device being capable of suppressing fluctuations in compensation torque for the electric motor. This speed control device for an electric motor is equipped with: a speed cont...  
WO/2017/118723A1
The invention relates to a vacuum pump drive (12) comprising at least one electric motor (18) which is connected to the rotor (14) of a vacuum pump (13) via a drive shaft (16), a frequency converter (20) which is electrically connected t...  
WO/2017/119432A1
Provided is a motor drive device with which it is possible to improve the level of comfort of an occupant riding in a vehicle and to improve power consumption and the like, and with which it is also possible to reduce costs and save spac...  
WO/2017/115561A1
Provided is a device for controlling a direct-type power conversion apparatus, which is capable of highly efficiently driving a motor while suppressing noise. Pulsation power having a first variation width is inputted to a DC link (DC po...  
WO/2017/109921A1
A variable speed pumped-storage hydroelectric generation device of the present invention is provided with: a variable speed hydroelectric generator motor which, in spite of being equipped with a frequency converter and having a rotor rot...  
WO/2017/109022A1
The pseudo-sinusoidal control method for controlling a synchronous electric motor comprises steps of a) generating (104) three control signals, each having a plurality of pulses, b) generating (106) electrical currents for powering a syn...  

Matches 1 - 50 out of 7,969