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Patent Searching and Data


Matches 251 - 300 out of 9,170

Document Document Title
WO/2011/136160
Disclosed is a servo control device for causing an object to be controlled to follow an arbitrary target value at high speed with high precision without causing saturation of control input or saturation of a rate of change to occur. The ...  
WO/2011/132411
A motor control apparatus that controls the rotation angle of a motor (111), which drives a rotating body (112), is provided with: a synchronizing means (200) for generating and outputting interruption signals (700) on the basis of an ex...  
WO/2011/128695
A control system for an electric motor comprises a current sensing means arranged to produce a current sensing output indicative of electric current in the motor, current control means arranged to receive the current sensing output and t...  
WO/2011/128165
The invention relates to an electric delivery pump for delivering a fluid medium, in particular for delivering fuel in a fuel injection system. Said delivery pump comprises a pump unit and a drive unit which has a motor provided with a p...  
WO/2011/124745
The invention relates to an adjustment device (1) for controlling the electric drive (2) of an elevator in connection with a voltage reduction of the supplying network. The electric drive of an elevator comprises an electric motor (3) an...  
WO/2011/125814
Disclosed is an actuator that supplies power during a power outage at an appropriate timing to a detector for detecting the position of a driven object, is able to suppress power consumption by the detector, extending the endurance of a ...  
WO/2011/125813
Disclosed is an actuator that imparts a state of a repeating fluctuation of rotation angular velocity from an electric motor to a worm that is rotationally driven by the electric motor, causing the worm to rotate as if to simultaneously ...  
WO/2011/121049
A torsional mode damping controller system is connected to a converter or placed inside the converter. The converter is driving a drive train including an electrical machine and a non-electrical machine. The controller system includes a ...  
WO/2011/120727
The invention relates to an inverter for an electrical machine and to a method for operating an inverter for an electrical machine. In this case, the inverter (2) has at least one output stage unit (8) for producing a connection between ...  
WO/2011/117311
The invention relates to a method for operating a brushless electric motor, the windings of which are energised by an inverter with the aid of six switches. A detection unit for detecting defective switches, a unit for measuring voltage ...  
WO/2011/117311
The invention relates to a method for operating a brushless electric motor, the windings of which are energised by an inverter with the aid of six switches. A detection unit for detecting defective switches, a unit for measuring voltage ...  
WO/2011/118466
Disclosed is a controller apparatus for electric vehicles, wherein redundancy is given to the controller, enabling motor control to be conducted appropriately even when abnormality such as malfunctioning of the controller occurs, and ena...  
WO/2011/114765
Provided is an actuator control device capable of suppressing vibration during a regeneration period. The actuator control device comprises: a target speed calculation means (121) for calculating a target number of rotations of a motor; ...  
WO/2011/113636
The invention relates to a method for detecting blocking or sluggishness (M1, M3) of a DC motor (2). The method comprises the following steps: applying a voltage pulse (Uv,t = Os) to the DC motor (2); monitoring a motor current (IMotor) ...  
WO/2011/113403
An electric drive device (1) comprises a motor converter circuit (3) according to the invention, which has an intermediate circuit capacitor (16). The intermediate circuit capacitor (16) comprises a parallel circuit of a plurality of cer...  
WO/2011/095246
The invention relates to a circuit arrangement (CA) for an electric machine (EM) comprising a plurality of stator windings (ST1, ST2, ST3), wherein each stator winding (ST1, ST2, ST3) comprises at least one first phase winding (L1, L3, L...  
WO/2011/096119
Provided is an elevator control device wherein it is possible to perform stable vector control in the entire speed range from speed zero to a low speed by means of position sensorless drive control. A drive command output means controls ...  
WO/2011/093194
Disclosed is an electric power consumption control system for a factory where a plurality of machine tools (Mi, Mp1, Mp2) are installed. A machine tool (Mi) is provided with a control device (10) whereby either the rotational acceleratio...  
WO/2011/092408
The invention relates to a polyphase electrical machine (30), which is controlled by means of at least two inverters in parallel (101, 102), wherein each inverter has branches (101a, 101b, 101c, 102a, 102b, 102c), in a number equal to th...  
WO/2011/093281
Disclosed is a motor control device that can realize broad and highly functional characteristics with simple computations, and that responds widely to applications having a request wherein a request for an operation such as motor positio...  
WO/2011/086946
An electric operating machine comprising a motor and a power circuit driving the motor by the electric power supplied from a battery. The power circuit comprises a voltage conversion part converting an input voltage entered in accordance...  
WO/2011/086019
A fault tolerant electrical machine (40) for use in a gas turbine engine comprising: a plurality of phases (50A-D); a detector (52A, 52B, 52C, 52D) arranged to detect a short-circuit fault in at least one of the phases (50A-D); and a con...  
WO/2011/085837
The invention relates to a method for fault recognition in an electric motor (1) actuated by an inverter (2) in a motor vehicle, wherein the phase currents (Iu, Iv, Iw) of the electric motor (1 ) are determined, in particular measured, a...  
WO/2011/086019
A fault tolerant electrical machine comprising (40): a plurality of phases (50A-D); a detector (52A,52B,52C,52D) arranged to detect a fault in at least one of the phases (50A-D); and a controller (52A,52B,52C,52D) arranged to intentional...  
WO/2011/085882
The invention relates to a method for operating a mains-operated electric motor (2) for a power tool using switches, in particular semiconductor switches (1, 3), wherein the operation of the switches is monitored using an electronic cont...  
WO/2011/086994
Provided is a control device for fan filter units or the like. In an emergency, when an anomaly has occurred in a motor or motor control device, the provided control device immediately analyzes the anomaly and performs prompt, situation-...  
WO/2011/086945
The power circuit comprises a voltage conversion part converting an input voltage entered in accordance with a voltage of a power source to generate an output voltage and outputting the generated output voltage to the motor and a current...  
WO/2011/080240
The present invention relates to a variable speed hermetic compressor (1) providing the refrigerant cycle to be performed, comprising a motor (2) fed by the mains voltage (Vac), a main winding (AS), an auxiliary winding (YS), a first swi...  
WO/2011/080240
The present invention relates to a variable speed hermetic compressor (1) providing the refrigerant cycle to be performed, comprising a motor (2) fed by the mains voltage (Vac), a main winding (AS), an auxiliary winding (YS), a first swi...  
WO/2011/078318
Provided is a malfunctioning-factor evaluation supporting apparatus that prevents situations wherein unnecessary exchanging of motors occur when the motors are not actually malfunctioning. The malfunctioning-factor evaluation supporting ...  
WO/2011/077927
Disclosed are a motor control device which enables robustness of the whole control even against motor parameter fluctuations caused by temperature changes, manufacturing variations, and the like, and against disturbance, and an electric ...  
WO/2011/077789
A control unit (100) conducts a servo control of a table (02), which is the load, by conducting a feedback control of a servomotor (40). An inverse characteristic model (300) conducts a feedforward compensation control, by obtaining a sp...  
WO/2011/072843
The invention relates to a method for detecting a breakdown in a switching current source (1) comprising a control stage (2) which, on the basis of a set signal, supplies a control signal which, according to a predetermined cycle ratio (...  
WO/2011/070520
A method of protecting a synchronous machine (10) connected to an electricity network (12) against pole-slip comprises the steps of continuously monitoring a power transfer angle (δ) between an electromotive force (EMF) of the machine a...  
WO/2011/069801
An electrical machine (30) comprises a stator (32) including a plurality of electrical phases (34A, 34B, 34C) and a rotor (42) having a plurality of magnets (44). Each electrical phase (34A, 34B, 34C) comprises at least one coil (36) and...  
WO/2011/069725
The invention relates to an inverter assembly for operating an electric motor having a gate (201, 203) for providing an electrical voltage, a bridge inverter circuit downstream of the gate (201, 203) for generating an electrical alternat...  
WO/2011/067337
The invention relates to operating an electric motor (12), wherein a motor actuating signal (W) is generated and transmitted to the motor (12). According to the invention, in order to reduce the noise (Pv) generated by operating the moto...  
WO/2011/062145
Provided is an electric power steering device (100) wherein mechanical friction is electrically provided. A steering torque value (VT3) is detected by a steering torque sensor (30) according to the operation of a steering wheel (2). An a...  
WO/2011/061233
The invention relates to a pitch drive device (26) for a wind power or hydroelectric power station (22) comprising a synchronous motor (13) and a motor operation switchover unit (21) for switching between normal operation and emergency o...  
WO/2011/061187
The invention relates to a method for compensating for disturbance torques in electric work machines. A compensating current for compensating for the disturbance torque is superimposed on a target current to generate a desired target tor...  
WO/2011/061200
The invention relates to a method for reducing load-rejecting overvoltages when operating a synchronous rectifier (29) for a multiphase alternating current having a number of inputs (60.1 to 60.5) corresponding to the number of alternati...  
WO/2011/057838
The invention relates to a method for checking the plausibility of a torque (TrqEmMdl) of an electrical machine (1), which torque is calculated using a machine model, in which method a first value (PwrEmMdl) of an electromagnetic power o...  
WO/2011/054032
A controller for an AC electric motor, includes a Feed Forward Torque Controller and a load model. The Torque controller directly derives a torque related component of applied motor voltages from a signal representing a torque command in...  
WO/2011/052675
A pump unit is provided with pump mechanisms (21, 31, 41), motors (22, 32, 42), an inverter (23), a control unit (24) which controls the inverter (23) and monitors the power level of the motors (22, 32, 42), and a storage unit (25) which...  
WO/2011/047971
The invention relates to an electrically commutated electrical motor having a stator and having an in particular permanent-magnetically designed rotor. The electronically commutated electrical motor also has a control unit which is conne...  
WO/2011/049132
Provided is a clutch control device which permits clutch transmission control without being affected by the influence of variations, due to manufacturing errors, in clutch transmission torque characteristics. The clutch control device co...  
WO/2011/042237
The invention relates to a method for operating a drive unit (1), wherein the drive unit (1) comprises an electric machine (2), which during normal operation is operated by current provided by an inverter (3) on at least two phases (4, 5...  
WO/2011/039901
An electric vehicle control device is used for an electric vehicle comprising a vehicle body having a drive tire and an axle, and a drive motor for applying torque to the drive tire. The electric vehicle control device supplies a motor c...  
WO/2011/040845
An electric motor (100) having a motor control system (400) including: -a current measuring means (402) for directly or indirectly measuring the electric current in the rotor windings (7) providing a rotor current value/s, -an ambient te...  
WO/2011/039006
The invention relates to a method for protecting a motor vehicle generator from overheating, wherein a specified limiting characteristic curve, relating to a base temperature and describing a maximally allowable exciting current value, i...  

Matches 251 - 300 out of 9,170