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Patent Searching and Data


Matches 1 - 50 out of 16,864

Document Document Title
WO/2021/001201A1
The invention relates to a method for operating a drive assembly (2) of a motor vehicle (1), which drive assembly has an electric machine (3), wherein a target torque is specified for the electric machine (3) according to a torque requir...  
WO/2020/262269A1
According to the present invention, among control periods of an electric motor (M), which are formed of first to third periods, in the first period in which a peak of a first AC voltage (Vv) exists, a V-phase modulation wave (Vv*) accord...  
WO/2020/261751A1
This power conversion device comprises: a power converter including a switching element; and a control unit which controls the power converter. The control unit calculates a torque electric current detection value and an excitation elect...  
WO/2020/260454A1
The invention relates to a method for controlling, by means of field-oriented control, an active rectifier electrically connected to a stator of a wind turbine, wherein the generator comprises a stator having an axis of rotation about wh...  
WO/2020/260037A1
The present invention provides a control system (10) for an electrical machine (EM) for generating a braking torque by means of the electrical machine (EM) at a traction drive, comprising a control device (SE), wherein the control device...  
WO/2020/253821A1
Provided is a ride-on lawnmower, comprising: a travel component, a power output component, a power supply device, a drive circuit, an operating device, and a control module; the travel component comprises a travel wheel and a first motor...  
WO/2020/244954A1
The invention concerns a method for estimating the electromagnetic torque of a three-phase synchronous machine with permanent magnets, which involves: measuring the stator phase currents and voltages in a fixed three-phase reference fram...  
WO/2020/245385A1
A doubly-fed induction generator (DFIG) system (100) is described. The DFIG system (100) includes an induction electric machine (102) including a stator having a stator winding and a rotor having a rotor winding. The stator winding is el...  
WO/2020/237310A1
A motor comprising first and second rotors and a stator, wherein the first rotor comprises an arrangement of a plurality of first magnets and the second rotor comprises an arrangement of a plurality of second magnets, wherein each arrang...  
WO/2020/240748A1
A control device (1) of a rotating machine controls a rotating machine (2) on the basis of rotational velocity information of the rotating machine (2). The control device (1) comprises a rotational velocity selection unit (48). When shaf...  
WO/2020/243549A1
A motor drive system and method for determining an optimized efficiency of the motor drive system are provided. The motor drive system includes a system controller, a motor drive having includes an inverter configured to generate the AC ...  
WO/2020/232756A1
Disclosed are a motor controller, and a motor control method and device. The method comprises the following steps: generating a first-axis current and a second-axis current according to a target torque and the current rotational speed; p...  
WO/2020/234971A1
The present invention provides a motor driving device (105) for controlling the driving of an AC motor (1) connected to a mechanical device (2) having a periodic load torque pulsation using dq rotation coordinates, wherein the motor driv...  
WO/2020/228201A1
A method for controlling a smooth start of a permanent magnet synchronous motor under sensor-less vector control. After a permanent magnet synchronous motor is started, a mode thereof is set as a constant-torque operating mode or a const...  
WO/2020/227891A1
Disclosed are an electric motor control method, a controller, a storage medium and an electric motor driving system. Controlled variable values, predicted when different alternative voltage vector groups act, can be obtained on the basis...  
WO/2020/224932A1
It is described a method of generating a converter control signal (265) for a generator side converter portion (121), in particular of a wind turbine (100), being coupled to a generator (111), in particular a permanent magnet synchronous...  
WO/2020/222953A1
A motor control system for reducing or eliminating current ripple error during current sampling comprises a motor having a plurality of phase coils, a motor driver circuit having a plurality of switches coupled to the plurality of phase ...  
WO/2020/217626A1
The purpose of the present disclosure is to provide an electric tool capable of increasing the number of rotations of an electric motor. An electric tool (1) is provided with an AC motor (15) (electric motor), and a control unit (4). The...  
WO/2020/217548A1
Provided is a motor control device that can suppress a torque ripple even when electric characteristics of a motor have errors or variations. The present invention comprises: a basic current command generation unit (1) that outputs a d-a...  
WO/2020/217438A1
The purpose of the present invention is to achieve a motor control device that makes it possible to prevent reductions in efficiency, even when motor characteristics change. A motor control device that controls a motor that has a first...  
WO/2020/215588A1
Disclosed is a function-switching-based position-sensorless control method and system for a direct-current magnetism-regulating memory machine. The method comprises: step I: during normal operation of a direct-current magnetism-regulatin...  
WO/2020/213045A1
The purpose of the present invention is to obtain an inverter device that can increase the accuracy with which the current of a DC bus is detected, and suppress phase current ripple. An inverter control unit (7) included in this inverter...  
WO/2020/213453A1
Provided is a motor driving device that can reduce noise and vibration caused by mechanical resonance without requiring preadjustment such as a preliminary test and has high versatility adaptable to various motors. The motor driving devi...  
WO/2020/213124A1
This control device for a dynamo-electric machine controls, for individual phase windings of the dynamo-electric machine, the current used to electrify the phase windings by controlling an inverter that applies voltage to the phase windi...  
WO/2020/202655A1
A drive device for a permanent-magnet synchronous machine has a power converter 102 that drives a permanent-magnet synchronous machine 103, and a controller 101 that controls the power converter 102. The controller 101 comprises: a torqu...  
WO/2020/193242A1
A method of measuring torque in a six phase electrical motor, said motor including a motor stator including two electrically independent stator winding arrangements (U,V,W), (X,Y,Z) each comprising three combined windings; said winding a...  
WO/2020/191423A1
The present invention relates to a method (100) for operating a drive device (10), which has an electrical machine (11) that comprises a stator (11.1) and a rotor (11.2), it being possible to magnetically couple the rotor (11.2) to a rot...  
WO/2020/197001A1
Disclosed is an electric motor driving system. A system according to an embodiment of the present invention includes: a speed control unit which outputs a current command from the difference between a speed command of an electric motor a...  
WO/2020/192102A1
Provided is a stator flux linkage matrix extraction method for a permanent magnet synchronous electric motor. In the method, the magnetic saturation influence and the dq coupling influence are taken into consideration, and the influence ...  
WO/2020/194401A1
The present invention comprises: a model deviation calculation unit (11) that calculates a model deviation ε on the basis of the voltage, the current, and the estimated angular velocity ω^ r of an AC motor (2); a first angular velocity...  
WO/2020/195793A1
This rotating machine control device is provided with a current detecting unit (12), a current control unit (14), a voltage applying unit (13), and a state observation unit (15) which calculates an estimated current, an estimated rotatio...  
WO/2020/194637A1
In this control method for an electric vehicle: a basic torque command value is set on the basis of an operating state; a d-axis current command value and a first q-axis current command value with respect to the stator current, and an f-...  
WO/2020/198629A1
Apparatus and methods for controlling electric motors are disclosed. In addition, such apparatus and methods for starting and controlling electric motors and controlling electric motors switching from a PWM control to six step method of ...  
WO/2020/196397A1
A motor control device 100-1 comprises: an inverter 23; a current detector 24; a current detection unit 27; a duty cycle setting unit 31 for setting duty cycles for a first PWM signal, a second PWM signal, and a third PWM signal on the b...  
WO/2020/196398A1
This motor control device 100-1 comprises an inverter, a current detector, a current detection unit, and a PWM signal generation unit. The PWM signal generation unit: extracts part of a zero vector section in each of a first PWM signal, ...  
WO/2020/194396A1
The purpose of the present invention is to provide a permanent magnet synchronous machine control device capable of calculating a correction value of a magnetic pole position with a simple configuration. A first correction phase calculat...  
WO/2020/196390A1
When an energization time equal to or above a threshold value is present in one of an upcount period or a downcount period of a carrier, and an energization time below the threshold value is present in the other of the upcount period or ...  
WO/2020/192214A1
An electrical tool, comprising: a motor, comprising a stator and a rotor and configured to generate a reluctance torque; a power supply device, configured to provide electrical energy to the motor; a drive circuit, electrically connected...  
WO/2020/189438A1
A controller of this motor control device comprises an integral calculation unit 606A (608A) that calculates a d(q)-axis integral value Id **(Iq **) through the integral control of a d(q)-axis current deviation ΔId(ΔIq), and is configu...  
WO/2020/189861A1
An inverter control device and method are disclosed. A method of one embodiment of the present invention estimates a rotating speed of a motor, determines a slip frequency command by using direct current end capacitor energy and a direct...  
WO/2020/186656A1
A method for estimating the position of a linear time-variant rotor of a low-speed permanent magnet synchronous motor, comprising: first, injecting a high-frequency sinusoidal signal from a voltage end of a stator, thereby causing stator...  
WO/2020/184285A1
Switching elements (Su, Sv, Sw, Sx, Sy, Sz) are controlled so that at least two maximum points appear in a power supply half cycle in a waveform obtained by combining the second harmonic, the fourth harmonic, and the sixth harmonic of th...  
WO/2020/181603A1
A memory motor winding multiplexing control method and system for flux linkage observation. The method comprises the following steps: I: when the magnetization state of a memory motor needs to be adjusted, selecting a magnetism adjusting...  
WO/2020/173755A1
The invention relates to a method for operating a three-phase electric motor (1) which comprises a non-rotatable stator (3), a rotor (5), which is rotatable about an axis of rotation (R), and a control device (10) and through which a coo...  
WO/2020/173064A1
A predictive thrust control method and system of an arbitrary double vector model for a linear induction motor, which relate to the technical field of linear induction motor control. In view of the shortcomings of traditional models for ...  
WO/2020/174884A1
An angular speed detection unit (9) for detecting a rotation speed of an electric motor (6), has a rotation speed calculation unit (18) that detects a rotation angular speed of the electric motor (6) on the basis of an output pulse of a ...  
WO/2020/169379A1
The invention relates to estimating the torque (Tq) of an electric machine by: - establishing (E2) a direct component (Id) and a quadrature component (Iq) of the stator currents, and a rotor flux value ϕf(Τrot) corresponding to a measu...  
WO/2020/164113A1
Disclosed are an electric motor control method and an electric motor control apparatus. The electric motor control method comprises: according to a given electrical angular velocity and an actual electrical angular velocity of an electri...  
WO/2020/162828A1
A stator of an SRM is disclosed. The stator includes two or more pairs of diametrically opposite stator poles and two or more stator windings. Each stator winding is wound around each pair of diametrically opposite stator poles. The wind...  
WO/2020/158434A1
A shift range control device (40) switches a shift range by controlling driving of a motor (10). An angle calculation unit (51) calculates a motor angle on the basis of a signal from a rotational angle sensor (13) that detects a rotation...  

Matches 1 - 50 out of 16,864