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Patent Searching and Data


Matches 301 - 350 out of 9,167

Document Document Title
WO/2011/027489
A comparison unit compares an expected value with a count result at an end of a monitoring period of a counter for counting the number of pulses of a system clock for each monitoring period. If the comparison result shows a mismatch betw...  
WO/2011/026792
The invention relates to a direct current motor, preferably in the form of an EC-motor, comprising adaptation means in order to modify the speed-torque characteristic curve. Said motor comprises a permanently active control circuit (16) ...  
WO/2011/018527
The present invention relates to an asynchronous generator system for a wind turbine, and a wind turbine having such a system, and the method for operating and starting up such a wind turbine. The asynchronous generator system is thereby...  
WO/2011/018302
The invention relates to a method for monitoring a drive state, particularly a non-driven drive state, of an electric motor supplied with power by means of a bridge inverter having at least one half bridge, comprising capturing a state o...  
WO/2011/012111
The invention relates to a method for operating a magnetic actuator (1) for the transmission and/or generation of torques, said actuator comprising a driving shaft (2) and a driven shaft (3) onto which field-induced forces of a magnetorh...  
WO/2011/012304
The invention relates to a control for electric water pumps comprising an input and an output for electric current and comprising a switching means between the input and the output which applies the output depending on a control in a swi...  
WO/2011/010341
Provided is a current switching device the output of which does not change abruptly even when an induction motor is controlled by using a plurality of current detection sensors. The currents flowing through the respective phases of the i...  
WO/2011/009751
The invention relates to a method for diagnosing current sensors (S1, S2) of an n-phase induction machine (M) having n-1 current sensors, wherein the n phases (U, V, W) of the induction machine are short-circuited for a brief period of t...  
WO/2011/008874
A system for measuring current in an H-Bridge motor drive circuit and using that current to determine the output of a device powered by the motor. A particular embodiment is disclosed for a motor-driven fluid pump. Motor current is measu...  
WO/2011/006528
It is presented a method for detecting faults in a rotating electrical machine. The method comprises the steps of : selecting at least one frequency band to analyse, each frequency band being a frequency band of a measured entity to anal...  
WO/2011/004587
A position control method is provided with a temporary target setting step (S10) for setting a temporary target position that is obtained by adding a position correction amount to a target position, a first movement control step (S11) fo...  
WO/2011/001149
A motor control system has a sensor for measuring an operational parameter of a motor and includes means for converting the measured operational parameter into an electrical resistance value. The operational parameter measured by the sen...  
WO/2010/150846
A rotation control device for a working machine, capable of achieving rotation control in which the working attitude or the working load of a working device is taken into account. A rotation control device for a working machine is provid...  
WO/2010/148657
Disclosed are a network motor and a failure remote data collection and diagnosis system thereof. The system includes a network motor, a communication network and a background computer. The network motor includes a motor body and a motor ...  
WO/2010/150663
Provided is a servo control device that is applied to a numerically controlled device; which is provided with a screw-driven feeding section that converts rotating movements of motors to linear movements, a driven section that is made to...  
WO/2010/143257
Provided is a control device for an elevator exhibiting good follow-up performance wherein accurate inertia can be calculated quickly according to the operation mode while considering whether the operation mode of an elevator is the powe...  
WO/2010/138246
A method for detecting an anomaly in an induction machine (10) includes obtaining or receiving a signal from the induction machine; processing the signal so as to obtain a low frequency signal, then rectifying the low frequency signal; a...  
WO/2010/136240
The invention relates to a direct current motor system comprising a direct current motor having a commutator for controlling windings of the direct current motor, an interference filter for reducing the interference emissions towards and...  
WO/2010/138815
A control module 10 for an electric motor 34 is provided. Such motors 34, including DC brushless motors, are commonly used in many types of equipment including plural component proportioning equipment. The design includes four boards: a ...  
WO/2010/133303
The invention relates to a method and structure for operating a 3-phase machine fed by a 3-phase inverter, using a stator flux controller (123) and a slip frequency controller (113), or using a stator flux controller and a torque control...  
WO/2010/119661
Provided is a DC power-supply device that removes DC components from an AC power supply, and application systems utilizing the DC power-supply device. The DC power-supply device is a device that converts AC voltage to DC voltage, and out...  
WO/2010/119605
In order to offer a motor control device that will achieve automatic adjustment of motor control for driving mechanical loads, with easy manipulations, the motor controlling device is provided with; a tracking control unit (6) that input...  
WO/2010/118978
The invention relates to a method for operating a control circuit (10) having a first output (12) and a second output (14) and having an associated first switching means (16) and an associated second switching means (18), wherein an actu...  
WO/2010/116607
The drive of a positioning system (1) provided with an actuator (2) provided with a strain wave gearing (4) is controlled by semi-closed loop control for controlling a load position of a load device (5) on the basis of a motor position o...  
WO/2010/112929
A method of controlling an electric machine, the method comprising storing a plurality of power maps, each power map comprising control values for driving the electric machine at different power, and selecting a power map in response to ...  
WO/2010/112262
The invention relates to an electronically commutated electric motor. The electric motor comprises a stator, and a rotor, in particular a permanent-magnetic rotor. The electric motor further comprises a control unit connected to the stat...  
WO/2010/112929
A method of controlling an electric machine, the method comprising storing a plurality of power maps, each power map comprising control values for driving the electric machine at different power, and selecting a power map in response to ...  
WO/2010/099986
The invention relates to a method for monitoring the thermal stress of an electric motor, wherein at least the voltage and the current are measured. A motor constant of the electric motor is determined as a function of said measured vari...  
WO/2010/099986
The invention relates to a method for monitoring the thermal stress of an electric motor, wherein at least the voltage and the current are measured. A motor constant of the electric motor is determined as a function of said measured vari...  
WO/2010/097167
The invention relates to a method for actuating an electrical injection device (102) of an injection molding machine designed for injecting a bulk mass into a mold (112) in an injection phase, and exerting a predetermined pressure on the...  
WO/2010/097246
The invention relates to a method for operating an induction machine (1) containing a pulse-controlled converter (2), comprising the following steps: determining one current target value (lq, Target, Id, Target) for each current in a lon...  
WO/2010/086227
The invention relates to a method for operating a brushless electrical motor, the coils thereof being activated by an inverter using six switches, wherein there is a recognition unit for recognizing defective switches, a unit for voltage...  
WO/2010/081822
The invention relates to a detection and control device (1) for the detection of a motor failure of an electrical motor (2) having star point topology, comprising an evaluation unit (3), a control unit (4), a feedback unit (5) and contro...  
WO/2010/057762
The invention relates to a device for regulating a double-fed asynchronous machine (4), preferably for a power generation plant, particularly for a wind turbine or hydroelectric power plant, comprising an indirect converter (6), which is...  
WO/2010/057605
The invention relates to a method for operating a drive and a drive, wherein the drive comprises at least one motor having a rotor shaft that can be loaded by a brake torque created by at least one brake comprising a powered brake coil, ...  
WO/2010/049058
The invention relates to a method for adjusting an electrical drive in a vehicle, according to which at least one temperature of the electrical drive is determined, and the temperature of at least one part of the electrical drive is adju...  
WO/2010/049058
The invention relates to a method for adjusting an electrical drive in a vehicle, according to which at least one temperature of the electrical drive is determined, and the temperature of at least one part of the electrical drive is adju...  
WO/2010/046156
The invention relates to a method for operating an electric induction or travelling wave machine (10) by means of a converter (40) having a plurality of half bridges (71, 72, 73, 74, 75, 76), wherein associated with each half bridge (71,...  
WO/2010/046274
The invention relates to a method for monitoring and/or analyzing electric machines in operation, wherein an electric machine comprises at least one generator having a shaft, an excitation system, and drive means for driving said shaft. ...  
WO/2010/046274
The invention relates to a method for monitoring and/or analyzing electric machines in operation, wherein an electric machine comprises at least one generator having a shaft, an excitation system, and drive means for driving said shaft. ...  
WO/2010/041314
An acceleration/deceleration parameter group setting section (110) sets a plurality of acceleration/deceleration parameter groups (P1-Pn) for every input voltage (Vi) in accordance with the torque characteristics of a servo motor (11), a...  
WO/2010/038339
A first terminal of a protection element of a control unit is connected to a line between a motor and a switching element, and a second terminal thereof is directly connected to a ground-side line that is common to a controller and the s...  
WO/2010/035576
A control signal generation device (10) includes: a random signal generator (2) which generates a random signal in which the time average is converged to 0; a detector (4) which introduces the signal relating to the state of the system (...  
WO/2010/032705
A microcomputer (17) serves the role of detecting and evaluating abnormalities in a power shutoff switch for an ECU (11) that functions as a motor controller. In this instance, the microcomputer (17) first determines whether there is a s...  
WO/2010/028915
The invention relates to a method and a device for controlling an electric motor (2), wherein an operating voltage and an operating current is supplied to an electric motor (2), and at least one measurement variable (4, 6, 7, 8) characte...  
WO/2010/024194
Provided is a device for stable control that prevents overcompensation, vibrational instability and interference due to torque pulsation compensation signals, etc. while making the learning of pulsation compensation signals reliable and ...  
WO/2010/015461
The invention relates to a device (12) comprising an electric machine (16), a voltage detection device, and an analysis device. A fixed or movable part of the electric machine (16) has a field winding (F1) to which a first electric volta...  
WO/2010/004786
Provided is a motor controller wherein parameters at a control section can be set by evaluating a plurality of evaluation criteria simultaneously, and comprehending the characteristics of a control object of a motor or a machine so that ...  
WO/2009/156326
The invention relates to a method for identifying the load condition of a fluid-delivering, electric motor driven pump of a domestic appliance. The invention is characterized in that the pump is driven by a permanent magnet electric moto...  
WO/2009/153915
A motor control apparatus comprises a power source circuit section which has a control circuit for driving and controlling a motor and which generates a voltage for internal use from an externally supplied voltage, a control circuit sect...  

Matches 301 - 350 out of 9,167