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Patent Searching and Data


Matches 1 - 50 out of 20,850

Document Document Title
WO/2018/102872A1
A controller for an AC electric motor, the controller including: a power converter driving the AC electric motor; a feed forward converter that derives voltage values provided to the power converter; and a load model unit configured to d...  
WO/2018/099377A1
An aircraft, and over-voltage protection method and device for an electronic governor thereof. An electronic governor is used to control a motor. The method comprises the following steps: acquiring a direct current busbar voltage of an e...  
WO/2018/095632A1
The invention relates to the protection of an electric drive system. If a voltage spike occurs on the input of a current converter of the electric drive system via the intermediate circuit, then in order to dissipate said voltage spike i...  
WO/2018/097194A1
The electric working machine according to one aspect of the present disclosure is provided with a motor, a drive unit for driving the motor, a first control circuit, and a second control circuit. The first control circuit controls the dr...  
WO/2018/096421A1
The invention is related to a drive control for driving a dc motor of an electrical household appliance, in particular a hair cutting device such as an electric razor, shaver or epilator, at constant rotational speed. The drive control c...  
WO/2018/097014A1
A fault detection device for a rotation sensor, said fault detection device being equipped with: a rotary electric machine (17) that is driven by rotational force input from the outside, thereby generating AC power, and that carries out ...  
WO/2018/091368A1
A multiphase electric motor system and a method for controlling a multiphase electric motor system are disclosed. The method for controlling the multiphase electric motor system includes modulating a plurality of carrier signals with a p...  
WO/2018/090517A1
An electronic governor (100), comprising: a circuit board (101); a controller (103) installed on the circuit board (101); and an operating switch (105) installed on the circuit board (101), wherein the operating switch (105) is electrica...  
WO/2018/092210A1
A rotating electric machine control device is configured so that when a switching element cut-off failure determination unit determines the failure of a switching element cut-off switching unit, the output torque that is to be generated ...  
WO/2018/088433A1
[Problem] To provide an electric power steering device that is capable of estimating coil temperatures more accurately for a polyphase motor including multi-system motor windings, with consideration also given to a heat-transfer phenomen...  
WO/2018/086830A1
The invention relates to a method for monitoring the operation of an electrical rotating machine (2) comprising a rotor (8), a stator (10), and a machine housing (18), in which the rotor (8) and the stator (10) are accommodated. In order...  
WO/2018/087689A1
The present invention relates to an electrical machine for attaining varying torque at different speeds in vehicles by using switch combinations. The electrical machine comprises a coil with multiple sections C1, C2, C3, C4, C5, C6 conne...  
WO/2018/088432A1
[Problem] To provide an electric power steering device capable of estimating coil temperatures more accurately for a polyphase motor, with consideration also given to a heat-transfer phenomenon between a control board and coils in additi...  
WO/2018/082579A1
The invention discloses a method, a device and a system for heating a motor. The method comprises: acquiring a first temperature measured value of the motor (S10); determining whether the first temperature measured value falls within a p...  
WO/2018/084190A1
[Problem] To provide an electric power steering apparatus capable of easily achieving a steering torque equivalent to vehicle information, such as a steering angle, without being affected by the condition of the road surface and the chan...  
WO/2018/083744A1
A method for controlling a motor provided with a plurality of windings each having a phase, the method comprising: an estimation step for estimating the maximum temperature of the winding that reaches the highest temperature among the pl...  
WO/2018/082524A1
An overcurrent protection method, comprising the following steps: sampling an input current provided by the direct current side (S10); filtering the sampled current (S11); determining whether the filtered current is larger than a thresho...  
WO/2018/084233A1
Provided is a brake device capable of high-accuracy control for causing a brake force estimate value to follow a brake force command value by angle-sensorless control, and also capable of achieving cost reduction or the like. This dynamo...  
WO/2018/078778A1
Provided is a motor control device capable of minimizing both vibration and power loss even if the characteristics of the vibration and the power loss change due to motor driving environment. An amount of vibration and an amount of loss ...  
WO/2018/072907A1
In order to provide a method for limiting the temperature in an electrical machine, wherein the retrieval of higher drive powers is briefly allowed after a predetermined permanent temperature has been exceeded, it is proposed to determin...  
WO/2018/072903A1
The invention relates to a fan motor control device (1) comprising a control signal input (6) for applying a rotational speed control voltage as a control signal input signal and a control signal output (13) for picking off a control sig...  
WO/2018/072969A1
A method for detecting a fault in an AC/AC exciter (60) comprising an exciter rotor (90) and an exciter stator (70) is disclosed. A rotor current signal or a rotor voltage signal reflecting the current or voltage, respectively, at an exc...  
WO/2018/070169A1
The present invention addresses the problem of providing a motor control device having a function of generating vibrations and measuring a resonant frequency while controlling the rotation of a motor. To solve said problem, this motor co...  
WO/2018/070367A1
A vehicle control apparatus (50) is provided with: a lock determination unit (54); and a motor driving control unit (56). The lock determination unit (54) determines whether a vehicle (90) is in a locked state. The motor driving control ...  
WO/2018/066048A1
A numerical control device (10) controls a servo motor (16) on the basis of a processing program (11). The processing program (11) includes a command for generating moving direction reversal in a mechanical system driven in a moving axis...  
WO/2018/061437A1
A motor control device that feedback controls the state quantity of a motor or load and comprises: a first notch filter arranged inside a feedback control system and capable of changing a frequency component to be removed; a first notch ...  
WO/2018/062087A1
An electric brake device which can prevent shortages in vehicle power capacity is provided. This electric brake device is provided with a brake rotor, a friction member, a friction member operating means, an electric motor (4), and a con...  
WO/2018/061452A1
A motor control device that feedback controls the state quantity of a motor or mechanical load and comprises: a first notch filter arranged inside a feedback control system and capable of changing a frequency component to be removed; a f...  
WO/2018/061552A1
An exemplary motor system according to the present disclosure is provided with: an appliance that has a motor, a drive circuit for driving the motor on the basis of a rewritable drive control parameter, and a detection unit for detecting...  
WO/2018/061818A1
A power conversion device 100 comprises: a first inverter 120 that is connected to one end of each phase winding of a motor; a second inverter 130 that is connected to the other end of each phase winding of the motor; a first switching c...  
WO/2018/050458A1
It is described a control arrangement (360) for controlling an electrical machine (111, 211), comprising: a fundamental current controller (371), at least one harmonic flux controller (373a, 373b) related to a (nth or mth) harmonic (n, m...  
WO/2018/051641A1
A motor control device is provided with: a first communication unit for transmitting and receiving data to and from a motor; a communication disconnection determination unit for determining, from no reply from the motor within a certain ...  
WO/2018/047921A1
A shift range control device (40) that: is installed in a vehicle; controls the driving of a motor (10) and thereby switches shift range; and comprises a feedback control unit (60), a feedback value setting unit (63), current sensors (81...  
WO/2018/047394A1
Provided is a motor control device comprising: a movement command generation unit; a movement command processing unit; and a control unit. The movement command generation unit outputs a motor movement command. The movement command proces...  
WO/2018/041994A1
The invention relates to a circuit breaker (1) having at least one switching path (2) from a first connection terminal (3) of the circuit breaker (1) to a second connection terminal (4) of the circuit breaker (1), wherein at least one se...  
WO/2018/043062A1
The present invention pertains to a surge suppression circuit connected between a cable 100 and the output terminals of an inverter INV in order to drive, by means of the inverter INV, a motor M connected to the output terminal of the in...  
WO/2018/041584A1
The invention relates to a method for determining cylinder switching (128a) in an internal combustion engine (112), by means of a control unit, preferably a regulator (120) of an electric machine (114) coupled to the internal combustion ...  
WO/2018/042488A1
The invention addresses the problem of distinguishing and detecting a sign of a ground fault and a sign of a layer short-circuit during an operation of a rotating machine. To solve the problem, a diagnosis device (5) is provided with: le...  
WO/2018/041583A1
The invention relates to a method for determining an operating state (128a, 132a) of an internal combustion engine (112), comprising the following steps: determining the temporal course of a rotational speed (n) of an electric machine (1...  
WO/2018/042672A1
A motor control device of the present invention is applied in a configuration in which a plurality of synchronous motors mechanically connected in parallel with each other are driven by means of a single power converter, and is provided ...  
WO/2018/042974A1
The present invention provides a CPAP device which is used for positive airway pressure and which changes the pressure of a gas to be supplied at desired timing. The CPAP device has a fan and a control unit 30 for controlling rotation of...  
WO/2018/041586A1
The invention relates to a method for determining a coupling state (128a - 138a) of a drive train (2) of a motor vehicle (1) coupled to a clutch (4) on an internal combustion engine (112). Said method comprises the following steps: detec...  
WO/2018/038020A1
Provided is an electric linear motion actuator that achieves space saving and cost reduction and enables improved redundancy. This electric linear motion actuator (1) has a linear motion mechanism (3) and an electric motor (2) that are c...  
WO/2018/038021A1
Provided is a highly redundant electric motor apparatus which, when a failure occurs in estimation of an angle, is able to identify a line where the failure has occurred, and which is able to continue operation even after occurrence of t...  
WO/2018/037348A1
In aspects, the present invention discloses a system for monitoring condition of a plurality of motors. The system includes a plurality of condition monitoring devices capable of measuring one or more parameters associated with the corre...  
WO/2018/035778A1
An application method and system for controlling a rotation speed in a vertical winding machine, the method comprising the following steps: detecting a state of a vertical winding machine (S101); receiving a control command of an operato...  
WO/2018/037021A1
The present invention provides an apparatus and a method for reducing power consumption of a compressor. The invention applies a first operating voltage to the compression, then determines an operating power of the compressor at the firs...  
WO/2018/035779A1
A horizontal winding machine state rotation speed control method and system, the method comprising the following steps: detecting a state of a horizontal winding machine (S101); receiving a control command of an operator for the horizont...  
WO/2018/037191A1
The invention relates to a method for estimating a periodic or substantially periodic force present in a mechanical or electromechanical system, the method comprising: estimating, by a processing device, one or more harmonic frequencies ...  
WO/2018/033366A1
The invention relates to a device for the online monitoring, during operation, of the thermal stress of an electric motor (M) by the rotational movement of the rotor (T) thereof, said device comprising: a control unit (C) which is design...  

Matches 1 - 50 out of 20,850