Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 25,493

Document Document Title
WO/2019/159311A1
Provides is a control device for a DC motor, capable of generating highly accurate positional information while using output signals from inexpensive hall elements, as a multi-rotational absolute position encoder. In the control device f...  
WO/2019/159629A1
The motor control circuit (300) of the present disclosure is provided with a processor (60), and a memory (80) storing a software program for controlling the operation of the processor. On the basis of the software program, the processor...  
WO/2019/155756A1
A multigroup-multiphase rotating electrical machine control device 1 for controlling a multigroup-multiphase rotating electrical machine having an arrangement of different groups of windings at locations of mechanical spatial phases diff...  
WO/2019/155700A1
The purpose of the present invention is to provide a servo system which can handle various kinds of sensors having different specifications. The present invention is provided with: an encoder which detects a rotation of a motor; a sensor...  
WO/2019/150868A1
The purpose of the present invention is to reduce the amount of movement of a rotor during estimation of a magnetic pole position of an electric motor. Provided is a magnetic pole position estimation method provided with: a first step of...  
WO/2019/148514A1
A control method for correcting a PMSM compensation item. Data of a motor for which an error, caused by a certain parameter, occurs during control is measured in an offline manner, a lookup table of a current command and a compensation i...  
WO/2019/149622A1
The invention relates to a method for controlling a rotary electric machine (10) for a vehicle comprising a stator (18) and a rotor (19), the machine comprising a control module (14) able to generate a stator command (Comm_stat) from a t...  
WO/2019/149624A1
The invention mainly relates to a method for controlling a rotating electrical machine (10) for a motor vehicle, comprising a stator (18) and a wound rotor (19), the wound rotor (19) being intended to be traversed by an excitation curren...  
WO/2019/150984A1
Provided is a control device for a three-phase synchronous electric motor that makes it possible to improve accuracy of detection of a rotor position even if there is offset included in a neutral point potential of the three-phase synchr...  
WO/2019/148875A1
An electronic speed controller (10) and an unmanned aerial vehicle (100). The electronic speed controller (10) comprises a circuit board (11), a plurality of functional electronic components (12) and a plurality of ports comprising a sig...  
WO/2019/149675A1
The present disclosure relates to a slotless synchronous permanent magnet, PM, motor (1) comprising: a rotor (5), and a stator (3) configured to electromagnetically interact with the rotor, wherein the rotor (5) is provided with a first ...  
WO/2019/149502A1
The invention relates to a method for operating a rotating field machine (2) of a motor vehicle, wherein at least two winding systems (2a, 2b) of the rotating field machine (2) are supplied with current (idc, idc1, idc2) from a DC link (...  
WO/2019/150440A1
A drive control system, provided with: a motor; a sensor that includes detection magnets provided along the rotation direction on the outer periphery of a rotor of the motor, the detection magnets being configured by alternately disposin...  
WO/2019/150793A1
The present invention quickly stops rotation of an electric compressor while preventing damage to a switching element. An electric compressor 1 comprises a motor drive circuit 52 having a plurality of switching elements IGBT Q1 to Q6, a ...  
WO/2019/145215A1
The present invention relates to a method for operating an electronically commutated electric motor (1), wherein a sensorless electronic commutation is carried out on the basis of a provided estimated value (︢φ) of an angular position...  
WO/2019/145038A1
An electronically commutated electric motor (10) comprising a stator (12) with at least one stator coil (42), a permanent magnet rotor (14) rota table relative to the stator (14) about an axis of rotation (A) thereby generating an revolv...  
WO/2019/142875A1
Provided are an electric power steering device capable of detecting a rotation angle with high precision, and a rotation angle detection method. In the electric power steering device according to the present invention, a motor is provide...  
WO/2019/141086A1
A five-phase inverter dual three-phase motor driving circuit and a system vector control method, the driving circuit comprising two three-phase permanent magnet synchronous motors, a five-phase inverter, a controller, a reference current...  
WO/2019/141428A1
The present invention relates to a method for operating an electronically commutated motor (10) of a device (100) and/or of a pump (101), having a drive operating mode in which a drive operating voltage is applied as the operating voltag...  
WO/2019/139023A1
An encoder provided with a position detection device for detecting position information of moving parts, a magnet having a plurality of polarities along the movement direction of the moving parts, and electrical signal generation parts t...  
WO/2019/137156A1
A single-phase direct-current brushless motor and a control apparatus and control method therefor. The body (100) of the motor comprises a rotor (110) and a stator (120). The control apparatus (200) comprises: a first position detecting ...  
WO/2019/120811A1
The invention relates to an electric drive having an electric machine (1) which is supplied with electric energy via a converter (2). In a normal operation, the drive controller (5) continuously receives respective raw signals (x, y, α'...  
WO/2019/121918A1
Method for deternnining a measuring offset of a rotor position sensor (2) assigned to a rotor (3) of an electric machine (5) comprising stator windings that are supplied by an inverter (6) converting a voltage at a DC link capacitor (7) ...  
WO/2019/120617A1
The invention relates to a method for determining the rotor position of a three-phase machine without using a rotary encoder, and to a device for controlling a three-phase motor without using a rotary encoder, wherein the three-phase mac...  
WO/2019/121919A1
Method for determining a measuring offset of a rotor position sensor (2) assigned to a rotor (3) of an electric machine (4), wherein stator windings of the electric machine (4) are supplied by phase lines (17) between an inverter (6) and...  
WO/2019/123594A1
A motor control device (1) that controls a motor (3) that drives a mechanical device (2) that moves an object to be moved, wherein the motor control device (1) has a resolution conversion unit (17) that, on the basis of the ratio between...  
WO/2019/119871A1
Provided by the present invention is a method for controlling direct current bus discharge, comprising: receiving an active release command; obtaining a motor current signal according to the active release command; converting the motor c...  
WO/2019/123627A1
Provided is a motor drive device with which it is possible to continue operation within the upper limit of system control even when the voltage of an AC power supply decreases during operation of a motor used in a hoist or a crane. A mot...  
WO/2019/115240A1
The invention relates to a method for determining a rotation variable, particularly a direction of rotation (α+,α-) of a shaft (17), particularly a crankshaft (17') of an internal combustion engine (112), which is coupled to an electri...  
WO/2019/115350A1
The invention relates to an electrical drive assembly (AA), comprising: a three-phase machine (DM) having a first winding system (SS1) having at least three first windings (U, V, W) and a second winding system (SS2) having at least three...  
WO/2019/117680A1
According to a defective hall sensor signal generation device using a phase shift circuit and a method therefor, presented in the present invention, the device further comprises a hall sensor signal generation unit for enabling a signal ...  
WO/2019/114474A1
A method for correcting the position of a motor rotor comprises the following steps: (S11) acquiring an angle difference Δθk of the position of a motor rotor; (S12) according to the angle difference Δθk of the position of the motor r...  
WO/2019/115242A1
The invention relates to a method for determining a rotation variable, particularly a rotational speed (n), a rotational angle position (ϑ, ϑ1) or a direction of rotation (α+,α-) of a shaft (17), particularly a crankshaft (17') of an...  
WO/2019/111517A1
This motor device is provided with: a motor main body having a rotor, a plurality of phase coils for rotating the rotor, and an oil containing bearing for rotatably supporting the rotor; and a drive control unit for detecting the positio...  
WO/2019/107154A1
[Problem] To provide an identification method of a brushless DC motor that is capable of identifying information relating to a brushless DC motor without specifically performing a handshake. [Solution] The identification method of the pr...  
WO/2019/107156A1
[Problem] To provide an identification method of a brushless DC motor capable of identifying information relating to a brushless DC motor without specifically performing a handshake. [Solution] The identification method of the present di...  
WO/2019/106252A1
The invention relates to the field of transport, particularly motor vehicles. The invention relates to a motor with predictive adjustment and in particular to a motor controller of a vehicle, which, in particular, is capable of automatic...  
WO/2019/100752A1
An electric power tool, comprising a direct-current unit, an electric motor (50), a drive circuit (40), a capacitance circuit (30) and a control unit, wherein the capacitance circuit (30) comprises switch elements (Q1-Q6) and a capacitor...  
WO/2019/096865A1
A current controlling transducer comprising a circuit board (1), one or more current sensors (22), at least one microprocessor (8) on the circuit board, and a connector (3) with connection terminals connected to the circuit board and con...  
WO/2019/093300A1
[Problem] To provide a brushless DC motor identification method by which information about a brushless DC motor can be identified while handshakes are not especially needs to be performed. [Solution] The identification method according t...  
WO/2019/091996A1
The invention relates to a method for reducing the torque ripple and noise evolution in an EC motor (1) with single-phase feed by buffer-storing electrical energy in the EC motor (1), which is embodied with a power factor correction circ...  
WO/2019/092151A1
The invention relates to a device for controlling a system of a plurality of motor units (3, 4), which are operated by means of output-stage units (1a), fewer output-stage units (1a) than motor units (3, 4) being provided, the device hav...  
WO/2019/091560A1
The invention is directed to an electronically commutated electric motor and a method to control the same. The electronically commutated electric motor comprises a stator with at least one stator coll, a magnetized rotor rotatable relati...  
WO/2019/088245A1
This shift range control device (40), for controlling switching of the shift range by controlling driving of a motor (10), is provided with a signal acquisition unit (51) and a drive control unit (55). The signal acquisition unit (51) ac...  
WO/2019/087364A1
As a means for determining the presence or absence of a failure of a rotation sensor, a control device of a direct current (DC) motor is provided which is capable of using an output signal of an inexpensive Hall element to generate posit...  
WO/2019/087721A1
Disclosed are a motor control device capable of accurately estimating a rotor position on the basis of a neutral point potential even when a load acting thereon becomes large, and a brake control device driven by the motor control device...  
WO/2019/084584A1
The invention relates to a method for the sensor-free determination of the rotor position of a synchronously running three-phase machine (4), which is supplied via an inverter (3), wherein active inverter states excluding short circuit s...  
WO/2019/088927A1
The present invention relates to a system and method for suppressing a back electromotive force (EMF). The system and method are particularly relevant, but not limited to suppress or reduce the back EMF generated by a rotational motor dr...  
WO/2019/080998A1
The invention relates to a motor electric control unit (1) for an electric motor controlled by PWM with a PWM frequency, wherein each PWM period (A,B,C,D,E,F,G,H,I,J,K) has pre-calculated duty cycles and with a motor control frequency, w...  
WO/2019/081768A1
The invention relates to a method for the closed-loop and open-loop control of two or more EC motors operated using a common converter, wherein for the purpose of setting the operating point of the EC motors there is provision for common...  

Matches 1 - 50 out of 25,493