| Document |
Document Title |
|
WO/2005/078538A1 |
A barrier movement operator (10) including a sensing device (110) for generating motor signals representing an operational variable of the motor (106), a position sensor (128, 127) for detecting the rotation of motor (106), a controller ...
|
|
WO/2005/076989A2 |
A method for energy storage and recovery for load hoisting equipment powered by an induction hoist motor controlled by a first inverter and having a dual inverter controlling a capacitor utilizing rest power such as reverse power generat...
|
|
WO/2005/077702A1 |
A multi-stage dynamic braking resistor network (23) is provided that includes a plurality of dynamic brake resistors (1 a-d) for dissipating, as heat, regenerative energy inputted onto a system bus (17) by a motor or actuator (19), and a...
|
|
WO/2005/076453A1 |
In an electronic system, motor braking is accomplished by applying direct current (DC) voltage, developed across a capacitive element during a run mode operation, across terminals of an alternating current (AC) or an induction motor. Whi...
|
|
WO/2005/061304A1 |
A method for reducing the speed or for stopping an electric motor which can be operated with direct current, particularly a brushless direct current motor, when an error occurs in said electric motor or in electronic or mechanic units co...
|
|
WO/2005/048055A2 |
A system and method for facilitating patent grant and patent application claims examination; including the functions of automated importing of patent claims, automated parsing of the claims into their hierarchy, and compression/expansion...
|
|
WO/2005/048446A1 |
Disclosed is a braking method for a synchronous machine (1), wherein rotor windings (u, v, w) of the synchronous machine (1) are short-circuited, optionally with the insertion of at least one brake resistor (18). In order to keep the bra...
|
|
WO/2005/015739A2 |
One embodiment of the present invention relates to a method for constructing a circuit (11A) for controlling an electromagnetic actuator. Another embodiment of the present invention relates to a method for designing a circuit (11A) for c...
|
|
WO/2005/012028A1 |
Certain exemplary embodiments can comprise a method comprising: receiving electrical energy from a braking system of a vehicle at a working coil (5600), the vehicle comprising a first wheel drive comprising a first electric motor; and vi...
|
|
WO/2005/010630A1 |
The invention is related to a soft start device for an asynchronous motor by means of a current limiting element situated between the motor and a power line, a start line with at least one current limiting element, a bypass line with byp...
|
|
WO2004036755A9 |
A space vector pulse-width modulator (SVPWM) and a method implemented by the modulator. A precalculation module accepts Ua and Ub modulation indexes and in response thereto, outputs modified Ua and Ub information; a sector finder has a U...
|
|
WO/2003/097917A1 |
ABSTRACTA method of controlling a motor-driven washing machine and a control system that controls a motor or any other components of the washing machine are disclosed. The method includes the steps of generating an interruption command f...
|
|
WO/2003/092150A1 |
In the present invention, several polyphase devices are connected together: an inverter (420), and electrical rotating machine (440), and a resistive load or braking resistor (430). The purpose of the resistive load is to dissipate exces...
|
|
WO/2003/088470A1 |
The invention relates to an electric driven tool device, especially an electric hand-held tool device, comprising an asynchronous electric motor (2) or a brush-less synchronous electric motor and a computer-controlled motor control devic...
|
|
WO/2003/084045A1 |
The present invention relates to a propeller drive arrangement for vessels used in water-borne traffic, and specifically to a propeller drive arrangement containing a propulsion unit, and to such an arrangement, which contains a propulsi...
|
|
WO/2003/078199A2 |
A regenerative braking system for an electric vehicle having front and rear wheels, and includes a drive wheel, an actuating device, a regenerative braking control circuit (64)includes a potentiometer or transducer (40) a process sensor ...
|
|
WO/2003/072944A1 |
A dynamic brake for a peristaltic pump avoids backlash due to counter rotation. The braking operation (312) is initiated only after a set point has been set to zero and the pump has decelerated below a predefined speed (310). The braking...
|
|
WO/2003/071671A1 |
The invention relates to a drive system with at least one main motor (HMO) and at least one actuator motor (SM1, SM2). Said drive system comprises a d.c. intermediate circuit (ZWK), in which the main motor, during deceleration in the gen...
|
|
WO/2003/052921A1 |
Disclosed is a method and a circuit arrangement for carrying out a method to protect an electric motor (10) and/or a control circuit (12) thereof from an overload in an emergency operation mode. The inventive method and associated circui...
|
|
WO/2003/049256A2 |
A synchronous alternating current generator incorporates a braking mechanism which comprises a coil (21) providing a predetermined inductance and a predetermined resistance, and switch means (22) for connecting the coil across an output ...
|
|
WO/2003/045724A2 |
In an electrically driven automobile, a dynamo-electric generating device(s), (12) is attached to one or more free-running wheels (8, 9) of the vehicle, which are not connected to the power drive of the vehicle. The free-running wheels (...
|
|
WO/2003/043167A1 |
The invention relates to an electric motor drive for operating an alternating-current motor (10). The electric motor drive comprises a frequency converter (6) for controlling the motor, which frequency converter (6) comprises a rectifier...
|
|
WO/2003/032479A1 |
The invention relates to a method and a device for monitoring the braking state of brakes (1) that can be actuated electromagnetically. The aim of the invention is to attain a greater degree of accuracy for the determination of the opera...
|
|
WO/2003/028200A2 |
A method and apparatus for controlling a barrier movement operator comprising a controller (18) that dynamically controls barrier operator braking to electronically slow, stop or reverse the motor in the barrier operator controller. The ...
|
|
WO/2003/019314A1 |
A synchronous electric motor sensorless control device for driving a synchronous electric motor without using any rotational position measuring device. The sensorless control device comprises a relative position counter (4) for resetting...
|
|
WO/2003/009462A1 |
The invention relates to a method and a device for shutting down a drive during a mains failure, said method and device comprising a matrix converter (2), several commutation capacitors (C1, C2, C3) on the mains side, a switch unit (10) ...
|
|
WO/2003/007466A1 |
A DC motor drive circuit for stabilizing the rotation of the DC motor just after power supply and for preventing its reverse rotation just after a stop of power supply. As the circuits for supplying a power source voltage to a DC motor (...
|
|
WO/2002/095926A1 |
The invention relates to an embodiment and the use of synchronous motors as actuators inside an actuation range which is defined by end stops, for valves and flap valves for example. According to the invention, the phase position and/or ...
|
|
WO/2002/093730A1 |
A charge and discharge control device, wherein S1 used as a switching element for pressure rising and S2 used as a switching element for pressure lowering are turned on and off alternately with a dead time provided therebetween irrespect...
|
|
WO/2002/091558A1 |
A system for controlling a synchronous motor, comprising a current sensor for measuring the electric current of a synchronous motor; a coordinate transformer for coordinate-transforming the electric current measured by the current sensor...
|
|
WO/2002/081153A1 |
The invention relates to a hand-held machine tool, comprising an electric motor (12) mounted in a housing (10) via which a tool bit (16) disposed in a tool holder (14) can be rotatably driven, and a protective device (18) by which a char...
|
|
WO/2002/082613A1 |
When abnormal current due to jamming is detected through motor current (ID), the motor current (ID) performs an operation in which an ON/OFF operation and a continuous ON operation are repeated, so that increment of the motor current (ID...
|
|
WO/2002/051591A1 |
A control module (18) advantageously reduces cost and enhances reliability, design flexibility, ease of assembly, and performance of a flywheel operated hand tool (10). The control module (18) includes a thin film printed circuit with no...
|
|
WO/2002/051592A1 |
A speed controller operates a DC-powered fastener drive assembly to efficiently drive fasteners from a DC power supply (22), thereby achieving a fully portable hand tool. In particular, the speed controller accelerates a flywheel (28) wi...
|
|
WO/2002/050618A2 |
A power generation system is disclosed having several embodiments such as in one embodiment, the power generation system includes a fuel source to provide fuel, a turbogenerator (200), coupled to the fuel source, to generate AC power, an...
|
|
WO/2002/041485A1 |
The present invention discloses devices and methods for improved starting and stopping of rotary motors. A rotary electrical machine (3) is supplied with a voltage from a voltage supply (10). The magnitude of a phase current is measured....
|
|
WO/2002/037662A1 |
The invention relates to the circuit arrangement of an electromotor comprising two terminals, in which the electromotor can be actuated for operation in both rotational directions. When no current is supplied to the electromotor, one of ...
|
|
WO/2001/095474A1 |
The invention relates to a method for determining the position of an element driven by the direct current motor within a predetermined displacement trajectory between two block positions, by evaluating the current fluctuations contained ...
|
|
WO/2001/086799A1 |
The invention relates to a circuit arrangement for guaranteeing the defined switching-off behaviour of synchronous servomotors. According to the invention, the phase position of the voltage on the two motor coils (2.1) is measured and th...
|
|
WO/2001/073913A1 |
The invention concerns a device for stopping the motor when the load on the motor exceeds a predetermined value. It comprises means (D1, DZ, R1, R2) transforming the voltage variation at the phase-shifting capacitor terminals correspondi...
|
|
WO/2001/071902A1 |
The invention relates to a brake module for an asynchronous motor. The inventive module is especially used in a circular saw. The aim of the invention is to obtain braking that is as smooth and silent as possible regardless of the moment...
|
|
WO/2001/069747A1 |
The invention relates to a method for monitoring and influencing an electric motor, in particular, arranged on a displaceable object on a motor vehicle, such as a window or sunroof. The aim of the invention is to resolve the technical pr...
|
|
WO/2001/043270A2 |
The invention relates to a drive system for driving a set of machines (2, 3, 4) that are each provided with a rectifier (6). According to the inventive drive system, the inputs (7) to the control devices (8) of the drive motors of the ma...
|
|
WO/2001/039187A1 |
When quick deceleration is not required, a deceleration method with a small power consumption can be selected. Even when a disk is required to be stopped during decelerating the disk by the method, the disk can be stopped promptly and re...
|
|
WO/2001/017096A1 |
A generator is disclosed. The generator which includes a shaft; an electromagnetic bearing for rotatably supporting the shaft; an auxiliary bearing for supporting the shaft in the event of failure of the electromagnetic bearing; a sensor...
|
|
WO/2000/067254A1 |
The invention relates to a motion control system for driving a motor-driven device precisely to a predetermined position in a short time. More particularly, this invention relates to a CD-carousel loader having a precise and short access...
|
|
WO/2000/055963A1 |
The invention prevents a voltage change dv/dt of an inverter from directly causing an erroneous firing of a semiconductor brake switch, which may short-circuit the inverter during operation. To brake a motor (10) driven by an inverter wh...
|
|
WO/2000/043167A1 |
A robot device capable of natural, autonomous motion, which has motion-induced emotional instinct models and is provided with a control means (32) for determining its motion by changing an emotional instinct model based on elements of in...
|
|
WO/2000/041294A1 |
The invention relates to a mains braking device for a line-powered power tool. Said braking device comprises a circuit arrangement with a two-polar switch which switches between the motor mode and the braking mode. The inventive braking ...
|
|
WO/2000/036741A1 |
The invention relates to deceleration in an induction machine (2) comprising a stator which is connected to a single-phase or multi-phase a.c. system (L1, L2, L3) via an a.c. power controller (4) which can be controlled by phase control....
|
