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WO/2009/110321A1 |
Provided is a motor control circuit for controlling the energization of a coil on the basis of the detection result of the position of a rotor. The motor control circuit performs controls to make a stop for a short time by suppressing co...
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WO/2009/105276A1 |
A system for braking a motor. The system includes at least one resistor and a contactor connected to the at least one resistor and a motor. The system further includes a variable frequency drive electrically connected to the motor, where...
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WO/2009/105586A1 |
According to some embodiments disclosed herein, an energy recovery system can be characterized as including a conduit having a first end and a second end, wherein the first end of the conduit is configured to receive a gas flow transmitt...
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WO/2009/103153A1 |
A battery powered raise climber system is provided that uses Lithium ion batteries to drive a single or double electric drive for an existing raise climber. The batteries offer a faster, safer, quieter and cleaner way to move workers and...
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WO/2009/104791A1 |
Provided is a motor controller which can suppress temperature rise of a three-phase motor by suppressing decrease in torque generated. Also provided is an electric brake booster. When an ECU determines that the temperature of a coil has ...
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WO/2009/080384A1 |
The invention relates to a method for actuating a DC machine by means of a standard controller and a safety arrangement, wherein the DC current is connected to a supply voltage by means of a main switch (HS) to be activated by a control ...
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WO/2009/074396A1 |
The invention relates to an industrial robot having a robotic arm. The robotic arm has several axes (A1-A6) and at least one electric drive, which comprises an electric motor (7-12) and power electronics (16) actuating the electric motor...
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WO/2009/056018A1 |
An apparatus (10, 110, 510, 610) for controlling the starting and stopping of an AC induction motor comprises: a first magnetic permeable portion (20, 40, 120, 140, 520, 540, 620, 640) having first, second and third legs (21, 22, 23, 41,...
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WO/2009/047831A1 |
An electric vacuum cleaner which can detect the occurrence of a spark by an inexpensive structure and prevents smoking and ignition due to abnormal overheat in an end stage of life. The electric vacuum cleaner comprises a current detecti...
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WO/2009/043373A1 |
A drive unit for at least one electric motor, the drive unit comprising: a power source (1 ) producing direct current to the motor, an energy storage (C1 ) arranged at the output of the power source for storing energy recovered during br...
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WO/2009/037352A1 |
Electric braking system for a road vehicle of which at least one wheel is connected for the purposes of rotation to at least one rotary electrical machine, at least one wheel control electronic module 23 driving the electrical machine or...
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WO/2009/030584A2 |
Method for slowing-down control of an asynchronous machine (101), wherein the value of a start energy (Estart) is determined and stored while the asynchronous machine (101) is being run up from being stationary to the operating rotation ...
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WO/2009/025243A1 |
An electric power processing device is provided with an induction heating device (9) that is comprised of an induction heater driving inverter (16) with which an electric power source rectifying capacitor (2) connected in parallel with i...
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WO/2009/024168A1 |
An apparatus for monitoring an electromagnetic brake comprises a brake monitoring means (1) adapted for being coupled to an electric supply (6) for an electromagnetic brake having braking means and comprising an electrical coil (22) with...
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WO/2009/025060A1 |
An operation controller for electric equipment excellent in operability without enlarging a hand-operated switch box. The operation controller operates and stops the electric equipment (10) through control circuits (21,22) by switch oper...
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WO/2009/016267A1 |
The invention presents a control arrangement of an electric motor (2) used with a frequency converter (1 ) as well as a method for controlling an electric motor used with a frequency converter. In the invention the frequency converter is...
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WO/2009/013388A1 |
The invention relates to a switch arrangement of an electric motor drive (1 ). The electric motor drive comprises safety switches (3) determined by the safety of the drive, a controlled mechanical brake (4), a power supply circuit (5) of...
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WO/2008/155445A1 |
The power control of a transport system comprises an electric motor (2) for moving the transport appliance as well as a power supply appliance (3) of the motor, which comprises an intermediate circuit (4,5). The power supply appliance of...
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WO/2008/155446A1 |
The power control of a transport system comprises an electric motor for moving the transport appliance as well as a power supply appliance of the motor, which comprises an intermediate circuit. The power supply appliance of the motor is ...
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WO/2008/148470A2 |
Disclosed is a circuit for operating a coil of an electrically liftable safety brake, to be connected to AC inputs having different (preferably single-phase) operating voltages. Said circuit comprises: a rectifier circuit which is connec...
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WO/2008/146372A1 |
A vehicle steering gear has a steering mechanism for steering steered wheels by a steering wheel operated by the driver and a sub steering angle superimposition mechanism controllable electrically. A target sub steering angle is set acco...
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WO/2008/135327A1 |
The invention relates to a method for correcting errors in an electrical machine of a hybrid drive, comprising the following steps: detection of whether at least one operation parameter of the electrical machine exceeds an assigned opera...
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WO/2008/136836A2 |
A system and a method that provides fuel cell and energy storage hybrid-electric propulsion and control for a heavy-duty vehicle over 10,000 pounds GVWR. Power output is supplied from a fuel cell system to a high-power intermediate DC bu...
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WO/2008/130560A1 |
A mover (344) moving a stage (238) along a first axis and about a second axis includes a magnetic component (454), and a conductor component (456). The magnetic component (454) includes one or more magnets (454D) that are surrounded by a...
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WO/2008/122213A1 |
A control method and a control device of engines are introduced. During the process of engines controlling, the control unit does the adaptive learning for the actual target value of the feedback of different aims, and following the dyna...
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WO/2008/114026A1 |
A braking control system suitable for limiting or preventing rotation of a turbine of a wind powered generator, comprising sensing means, operable to sense the short circuit output current of the generator, wich is proportional to the st...
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WO/2008/114608A1 |
A hoist capable of high frequency operation by efficiently releasing heat of an inverter, which is incorporated in a hoist body, to ambient air by using a simple structure. The hoist has a load lifting and lowering electric motor and a r...
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WO/2008/109328A1 |
A single low side power transistor switch is used to efficiently control a brushed motor in a. forward rotational direction. A boost voltage power supply is used to supply voltage to the brushed motor in a reverse rotational direction or...
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WO/2008/091758A2 |
The present invention comprises a gear motor assembly and control system for use with ice crushers and the other similar devices. The assembly utilizes a novel reversing circuit which allows the use of a bidirectional DC powered gear mot...
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WO/2008/064716A1 |
The invention relates to a circuit arrangement for recirculating the energy produced during the braking of electric motors into a supply system. The object of the invention is to implement the feeding of the energy that can be obtained w...
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WO/2008/058214A2 |
A drapery master carrier for a drapery electric drive system is provided having a built-in wireless transmitter and a sensor to determine whether a manual pull is being applied to the drapes. The sensor is operatively connected to or inc...
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WO/2008/052695A1 |
The invention relates to a drive and brake system of a rail vehicle or a combination of rail vehicles, comprising a traction drive (1) for driving and for generative braking, at least one permanent-field synchronous motor (6) and a tract...
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WO/2008/052696A1 |
The invention relates to a method for the driving and generative braking of a rail vehicle or a combination of rail vehicles comprising a traction drive (1), at least one permanent-field synchronous motor (6) and a traction current conve...
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WO/2008/052694A1 |
The invention relates to a traction drive (1) for the driving and generative braking of a rail vehicle or a combination of rail vehicles, at least one permanent-field synchronous motor (6) and a traction current converter (4) being assoc...
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WO/2008/052693A1 |
The invention relates to a traction drive (1) for the driving and generative braking of a rail vehicle or a combination of rail vehicles, a permanent-field synchronous motor (6a, 6b) and a traction current converter (4a, 4b) being respec...
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WO/2008/052388A1 |
A control method of electromotor comprises the following steps: setting an alternating axis target current according to the rotor angle velocity of the motor and setting a direct axis target current according to the torque of the motor; ...
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WO/2008/049664A1 |
The invention relates to a method for identification of the failure of an electric motor (3) which can be switched on and off by means of a switch (1). In order to identify motor failure, the motor (3) is switched off briefly during oper...
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WO/2008/050624A1 |
When stopping operation of an electric power steering device, a motor relay maintains the ON state even after a power supply relay is set to the OFF state. A drive control unit performs the same processing as during motor rotation after ...
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WO/2008/049958A2 |
The object of the invention is an arrangement in a synchronous machine, which synchronous machine contains n-phased winding (U,V,W) and has constantly operating magnetisation means. According to the invention, switching means have been f...
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WO/2008/046953A2 |
The object of the invention is a synchronous machine, which is controllable by means of a frequency converter connected to it. The synchronous machine comprises a stator winding, which comprises between the synchronous machine's two term...
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WO/2008/046885A2 |
The invention relates to a method for controlling an electric motor by means of a softstarter. The present invention is also concerned with a softstarter device for control of electric motors. According to the invention, the motor torque...
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WO/2008/037799A1 |
A robot comprising: at least two parts (1, 2, 3) movably arranged in relation to each other with at least one degree of freedom; drive means (4, 5) arranged to accomplish at least two separate movements between said parts (1, 2, 3); at l...
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WO/2008/039183A1 |
Various systems and methods for controlling DC motors are disclosed herein. For example, one method provides for controlling a polyphase, brushless DC motor. The method includes providing a DC motor that has a plurality of phases. Such a...
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WO/2008/031915A1 |
The invention relates to a method and an arrangement for braking a synchronous motor (4) used with a frequency converter (2). The braking current of the motor (4) is controlled by connecting only the negative changeover contacts (10) of ...
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WO/2008/027867A2 |
A solid state reversing DC motor starter that is testable on-line and satisfies the requirements for nuclear safety grade equipment. The motor starter employs a bridge of solid state switches which connect the polarity of the motor windi...
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WO/2008/024068A1 |
A drive system for operation of a tap changer for voltage regulation of a transformer on load comprises an electric motor (20) connectible to a movable part of a said tap changer for moving this for carrying out a tap change operation. T...
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WO/2008/009349A2 |
A coil, in particular for electromagnetically controlled brakes or clutches, has two or more part-windings and associated taps. A first part-winding comprises a winding wire having a first diameter, and a second part-winding comprises a ...
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WO/2008/007541A1 |
A servo motor monitoring device comprises a magnetic pole position calculation means (20), a current position signal input means (30), and a monitoring means (40). The magnetic pole position calculation means retrieves the magnetic pole ...
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WO/2008/007120A2 |
An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective sub-sets of coils for current control. A s...
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WO/2008/004177A2 |
The invention is directed to a method for controlling a deceleration process of a DC motor (20), wherein the DC motor (20) is driven by a bridge driver (18) coupled to a power supply (12) intended to provide a supply voltage VDD at a pow...
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