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Matches 1 - 50 out of 24,411

Document Document Title
WO/2018/011170A1
The invention relates to a synchronous motor (1) comprising a permanent magnet rotor and a stator having three winding strands (2, 3, 4) which have a winding connection (U, V, W) and are connected to a star point (S) of a star circuit an...  
WO/2018/012260A1
[Problem] The purpose of the present invention is to provide a synchronous motor control device and a method for controlling same, by which, when a synchronous motor in a rotation state of not being supplied with power is activated by be...  
WO/2018/008372A1
Provided is a 6-line 3-phase motor that is capable of simultaneously achieving a high output and reduction of torque ripples. A 6-line 3-phase motor (100) is provided with: a stator (110) that has winding wires wound independently betwee...  
WO/2018/007818A2
An electric motor may comprise a rotor and a stator comprising rotor and stator teeth, respectively. A non-uniform angular spacing or grouping of rotor teeth may facilitate desired rotational speeds of the rotor.  
WO/2018/007424A1
A method and apparatus is described in which a series of short-circuiting pulses is applied to a motor. A current in the motor is determined after one or more of the series of short circuit pulses has completed. The duration of the short...  
WO/2018/001512A1
The present invention relates to an electrical household appliance with a power module having decreased freewheeling time duration. The present invention relates to an electrical household appliance comprising more particularly at least ...  
WO/2018/002574A1
A method for controlling an electric motor is described herein. The method comprises setting a current limit, a speed limit and a torque limit. The method also comprises sensing a DC link current, comparing the sensed DC link current wit...  
WO/2017/220117A1
A turbomachinery system includes a turbomachine, a shaft, a rotor power converter, and an electrical machine. The electrical machine is coupled to the turbomachine by the shaft extending therebetween. The electrical machine includes a st...  
WO/2017/220121A1
A power converter for an electrical machine drive system that includes a power source and an electrical machine including a shaft. The power converter includes a first converter coupled to the power source, a second converter coupled to ...  
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/2017/220234A1
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/2017/221862A1
In order to provide a motor driving device that executives torque pulsation suppression control regardless of the processing power of an installed computing device, the motor driving device 100 according to the present invention is equip...  
WO/2017/218171A1
Methods and apparatus for determining a position of a rotor in motor, such as a three-phase motor by determining first and second ones of sectors in which a first one of the magnetic poles of the rotor may be positioned by driving phase ...  
WO/2017/218822A1
In a described example, an apparatus (800) includes: a FET driver circuit (812) configured to supply current to a coil in a stepper motor, the FET driver circuit (812) configured to regulate the current to the coil using a fixed delta cu...  
WO/2017/215822A1
The invention relates to a method for adjusting an amplitude of a voltage injection of a rotating, multi-phase electric machine, which electric machine is fed by means of a PWM-controlled inverter, comprising at least the following steps...  
WO/2017/211439A1
The subject of the invention is a method and a device for determination of a torsional deflection of a rotation shaft in the electromechanical drivetrain. The method according to the invention uses a current and voltage signals measureme...  
WO/2017/208873A1
The present invention is provided with a brushless DC motor (4), an inverter (3) for supplying power to the brushless DC motor (4), and a position detection unit (5) for detecting the rotor position of the brushless DC motor (4). The inv...  
WO/2017/207283A1
The invention relates to a method for operating an electrical machine (2), especially for driving vehicles, in particular submarines. Said electrical machine (2) comprises a stator having a plurality of coils, and a plurality of converte...  
WO/2017/202676A1
The invention relates to a motor control assembly (30) for an electric machine (34) and to a corresponding method. The motor control assembly (30) has a current-measuring device (32) for determining current values (I), a memory device (3...  
WO/2017/203032A1
The present document relates to a method of calibrating a resolver arrangement in a multiphase switched reluctance motor, the motor comprising a stator including a plurality of coils and stator poles wherein the stator poles form the cor...  
WO/2017/198381A1
The invention relates to a method for ascertaining freewheel phases (PhFI) of an electric machine (114) coupled to an internal combustion engine (112) by a freewheel (111), having the steps of detecting a time curve of a phase signal (12...  
WO/2017/196525A1
Methods and apparatus to control a three-phase BLDC motor using phase current and phase voltage at zero current detection and a driving current derived from a bus current, for example. The driving current can be combined with a differenc...  
WO/2017/195435A1
[Problem] To provide a motor module in which the position change amount of a rotor per pulse is variable. [Solution] In one mode of this motor module, provided are a motor drive circuit 10 that drives a motor M, and a position estimation...  
WO/2017/190898A1
The invention relates to a method for determining the phase currents (lk ,i,m) of an electric machine having a converter (20) and a stator (10) comprising windings (11-15) having a phase count of at least three, wherein the phase current...  
WO/2017/192610A1
A control device for a ceiling fan may have a motor drive circuit configured to control a rotational speed of a motor of the ceiling fan, an occupancy sensing circuit, and a control circuit configured to adjust the rotational speed of th...  
WO/2017/187533A1
A motor drive device 100 according to the present invention drives a single-phase PM motor 3 and is provided with: a single-phase inverter 2 for applying an AC voltage to the single-phase PM motor 3; a rotor position detection unit 7 for...  
WO/2017/187600A1
A failure determination device for an angle detector of a rotation machine, said device being provided with an angle detector having a number of pole pairs n (n>m) for outputting a sine wave signal and a cosine wave signal in accordance ...  
WO/2017/187890A1
Provided is an electric tool that comprises: a brushless motor that performs rotational drive when applied voltage is at or above induced voltage; a supply circuit that applies voltage to the brushless motor; and a control unit that cont...  
WO/2017/187129A3
A method of controlling a brushless permanent-magnet motor that comprises sequentially exciting and freewheeling a phase winding of the motor, wherein the phase winding is freewheeled when the phase current exceeds an upper threshold and...  
WO/2017/187127A3
A method of determining the position of a rotor of a brushless permanent-magnet motor. The method comprises exciting and freewheeling a phase winding of the motor, wherein the phase winding is freewheeled when a phase current exceeds an ...  
WO/2017/186211A1
The invention relates to a method for linearizing signals of a magnetic field receiving module of a sensor-controlled commutated electrical machine (100), which comprises a stator (106) and a rotor (104), during a teaching process, where...  
WO/2017/182177A1
The invention relates to a motor control electronics system (1) for a brushless DC motor (20) which comprises a stator (22), a rotor (24) and a motor shaft (26) which is connected to the rotor (24), having an evaluation and control unit ...  
WO/2017/178304A1
A position sensor (10) comprise at least a magneto sensitive element (11 -14), a signal evaluation unit (16) that is coupled to the at least one magneto sensitive element (11 -14) and is configured to generate an measurement signal (SM),...  
WO/2017/179336A1
This shift range control device switches shift range by controlling the drive of a motor (10). The shift range control device is equipped with a motor drive control unit (51) and an actual range determination unit (71). The motor drive c...  
WO/2017/178142A1
The invention relates to a method and a control circuit (10) for measuring a current in a multiphase electric machine (100) which has at least one first m-phase winding system (110) with m phases (u, v, w) and a second m-phase winding sy...  
WO/2017/179337A1
This shift range control device switches shift range by controlling the drive of a motor (10). The shift range control device comprises a feedback control unit (52) that performs position feedback control on the basis of a target angle d...  
WO/2017/179236A1
A motor control device of an embodiment comprises: multiple magnetic pole position estimation parts for estimating magnetic pole positions of multiple motors; vector control sections for performing vector control for the multiple motors ...  
WO/2017/166731A1
A signal converter for ECM motor. The signal converter is connected between an electrical device (such as an HVAC system controller) and the ECM motor. The signal converter converts a control signal outputted by the electrical device int...  
WO/2017/169197A1
A motor control unit (53) is provided with: a state monitoring unit (55) that detects a power supply abnormality in which power is abnormally supplied to at least one of a rotation sensor (46) and a motor (12); an abnormality determinati...  
WO/2017/167864A1
The invention relates to an electronic control device (13) for a refrigerant compressor, comprising at least: a drive unit (18); and a compression mechanism (5) which is actively connected to the drive unit (18), with at least one piston...  
WO/2017/172367A1
A maximum acceleration identification system determines a suitable maximum acceleration for transitioning a given motion/motor system to a target position or velocity, taking the friction of the motion system into consideration. The maxi...  
WO/2017/172315A1
A motor controller configured to control different types of electronically commutated motors (ECMs) includes a range of different rotor orientation signal inputs to accommodate differences between ECM motor types. The motor controller in...  
WO/2017/166793A1
A fault information processing method and a system for a rotary transformer decoding chip, wherein the processing method comprises the following steps: reading data information transmitted by a decoding chip in a preset period (S101); af...  
WO/2017/164105A1
[Problem] To provide an electric power steering device which avoids giving the driver an uncomfortable feeling by gradually changing a steering angle speed command value as well as a steering angle control command value and an assist con...  
WO/2017/162439A1
The invention relates to a method for detecting the rotor position of a BLDC motor, for example in a domestic refrigeration appliance, having at least two permanently magnetic pole pairs and controlled magnetic pole pairs electrically pr...  
WO/2017/159214A1
This motor control device, which controls a brushless motor for causing an oscillation movement of a wiper arm, is provided with: a position detection unit which detects the rotational position of a rotor; and a control unit which, in a ...  
WO/2017/159392A1
Provided is a motor control device with which the rotor position can be detected with good precision when weak magnetic flux control is performed and when normal control is performed. This motor control device includes: a first rotor pos...  
WO/2017/158680A1
Provided is a three-phase redundant motor device (50) for electric power steering devices which, when increasing the supply current to a normally operating set of three-phase windings is increased, is able to control the increase in supp...  
WO/2017/159230A1
Provided is a motor drive circuit that comprises: a rotor position detection unit that detects the position of a rotor and outputs a rotor position detection signal; a rotor position signal generation unit that, on the basis of the rotor...  
WO/2017/158681A1
Provided is an electric motor control system capable of increasing the torque of an electric motor in order to ensure steering performance even when an abnormality occurs, and an electric power steering device. This electric motor contro...  

Matches 1 - 50 out of 24,411