| Patents for H02P 5 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors (4,788) |
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| 01/20/2009 | US7479746 Power converter for an electric engine start system |
| 01/14/2009 | CN201181921Y Multi-shaft movement mechanism driven by linear electric motor |
| 01/14/2009 | CN101345505A Electric synchronization control method of four frequency conversion motors with double winding drums and double hanging points |
| 01/14/2009 | CN101342937A Propulsion system and navigation control method for ship |
| 01/14/2009 | CN100452636C Motor driver and magnetic disc apparatus |
| 01/08/2009 | US20090009108 Motor driver circuit, control method thereof, and electronic apparatus |
| 01/07/2009 | EP1631517A4 Absolute position reference system |
| 01/07/2009 | CN101340174A System asynchronously implementing frequency convertion and speed regulation of rotor by dragging multiple motors with inverter |
| 01/07/2009 | CN101340165A Synchronous control system for multiple motors |
| 01/07/2009 | CN100449933C Servo motor drive controller |
| 01/06/2009 | US7474065 Controlling an electric motor having multiple oscillatory elements |
| 01/01/2009 | US20090002939 Systems and methods for fan speed optimization |
| 01/01/2009 | US20090001906 Method and apparatus for controlling asynchronous motors |
| 12/31/2008 | WO2009001452A1 Controller for electric vehicle |
| 12/31/2008 | CN201171653Y Control device of dust collector |
| 12/31/2008 | CN101336173A Power source apparatus for vehicle, vehicle and method of controlling power source apparatus |
| 12/31/2008 | CN101335494A Method and apparatus for controlling asynchronous motors |
| 12/31/2008 | CA2691006A1 Controlling device for railway electric car |
| 12/30/2008 | US7471003 Vehicular power control apparatus |
| 12/24/2008 | DE102008026544A1 Steuerung von zwei Motoren mit einem einzigen Prozessor Control of two motors with a single processor |
| 12/23/2008 | US7468595 System and method of controlling the start-up of an adjustable speed motor drive based sinusoidal output power conditioner |
| 12/23/2008 | US7468587 All wheel drive vehicle |
| 12/18/2008 | US20080309265 Motor Control Device |
| 12/16/2008 | US7466086 Motor drive unit |
| 12/12/2008 | CA2633370A1 Dual-motor whole body vibration machine with tilt mode |
| 12/11/2008 | WO2008149447A1 Electric motor controller |
| 12/11/2008 | CA2689682A1 Motor controlling apparatus |
| 12/10/2008 | CN201162876Y Double-electric fitting valve control apparatus |
| 12/10/2008 | CN100442653C Driving control apparatus for motion mechanism and control method of driving control apparatus |
| 12/09/2008 | US7463000 Motor controlling method, motor controlling apparatus, and recording apparatus |
| 12/04/2008 | WO2008145647A1 Circuit arrangement for the selective operation of at least two electric machines |
| 12/04/2008 | US20080297073 Electric Force Transmission Device |
| 12/04/2008 | DE102008008046A1 Switching configuration for selective operation of two electrical machines and for drive system, has voltage protection module for limiting intermediate circuit voltage and switching arrangement for selecting one of two electrical machines |
| 12/03/2008 | CN201160265Y Drive system of permanent magnet motor of transverse magnetic field |
| 12/02/2008 | US7459879 Motor controller |
| 11/27/2008 | DE102008019576A1 System und Verfahren zur Hybridmotorverstärkung System and method for hybrid motor gain |
| 11/26/2008 | CN100438321C Motor drive unit |
| 11/26/2008 | CN100438316C Method for reducing the rotational speed of a drivetrain in a wind energy plant and wind energy plant with at least two nominal speeds |
| 11/25/2008 | US7456599 Position feedback device with prediction |
| 11/25/2008 | US7456537 Control system for bearingless motor-generator |
| 11/19/2008 | CN201153243Y Intelligent frequency-converting speed-regulating system |
| 11/19/2008 | CN101309066A One-master-driving-two system of industrial frequency transformer realized on basis of digital signal processor (DSP) |
| 11/19/2008 | CN100435470C Load drive device, vehicle, and abnormality processing method in load drive device |
| 11/18/2008 | CA2339933C Arrangement with an electric motor |
| 11/13/2008 | WO2008136146A1 Driving device for motor of rolling mill roll |
| 11/13/2008 | DE102008019569A1 Wechselrichtertopologie für einen Elektromotor Inverter topology for an electric motor |
| 11/13/2008 | DE102007024217A1 Drive device comprises two drive controllers, particularly static frequency changer, which is provided with interface, and drive controllers have another interfaces, where both interfaces are Ethernet interfaces |
| 11/13/2008 | DE102007020727A1 Druckmaschine und Verfahren zum Betreiben einer Druckmaschine Printing machine and method for operating a printing press |
| 11/12/2008 | EP1990910A1 Motor drive device, hybrid vehicle using the same, and electric power conversion device stop/control method |
| 11/12/2008 | EP0948124B1 Motor controller |
| 11/11/2008 | US7449855 Window lifter, controlling device for a window lifter and method for the control of a window lifter |
| 11/11/2008 | US7449851 Arrangement for automatically influencing a mains supply and motor drive therefor |
| 11/11/2008 | US7449849 Motor control circuit and method thereof |
| 11/06/2008 | US20080272717 Method and apparatus to determine rotational position of an electrical machine |
| 11/06/2008 | DE19953295B4 Verfahren zum Betreiben, Kontrollierten und Steuern von Hysteresemotoren A method of operating, Controlled and controlling hysteresis motors |
| 11/05/2008 | CN101299581A Neural network generalized inverse coordination control frequency transformer for two induction machines and construction method thereof |
| 11/05/2008 | CN101299580A Cooperative controller for two-motor vector control frequency control system and construction method thereof |
| 11/05/2008 | CN101298303A Paper processing apparatus, paper processing method and image forming apparatus |
| 10/30/2008 | WO2008130560A1 Three degree of movement mover and method for controlling the same |
| 10/30/2008 | WO2006050271A3 Vsd control |
| 10/29/2008 | EP1984202A1 Electric motor drive apparatus and vehicle including the same |
| 10/29/2008 | CN101295957A Hybrid motor boost system and methods |
| 10/28/2008 | US7443132 Motor control device and method |
| 10/28/2008 | US7443114 Image forming apparatus |
| 10/23/2008 | WO2008127826A1 Multiplexed control of multi-axis machine with distributed control amplifier |
| 10/23/2008 | WO2008126629A1 Electric vehicle |
| 10/22/2008 | EP1981733A1 Power source apparatus for vehicle, vehicle and method of controlling power source apparatus |
| 10/16/2008 | WO2007149360A3 Hands free waste flap apparatus and method |
| 10/15/2008 | CN201134776Y Control system of explosion-proof multi-loop vacuum electromagnetic starter for mining |
| 10/15/2008 | CN201132425Y Shaftless drive device for gluing and binding machine and collating machine |
| 10/14/2008 | US7437202 System and method for control scheduling |
| 10/14/2008 | US7436153 Power supply system method of use |
| 10/09/2008 | WO2008121051A1 A method in a milking system for creating a required vacuum level and computer program products |
| 10/09/2008 | US20080247880 Systems and Methods for Reducing Pump Downtime by Determining Rotation Speed Using a Variable Speed Drive |
| 10/09/2008 | CA2681980A1 A method in a milking system for creating a required vacuum level and computer program products |
| 10/08/2008 | EP1977501A2 Virtual moving air gap for an axial flux permanent magnet motor with dual stators |
| 10/08/2008 | EP1271274B1 Servo controlling device and method |
| 10/08/2008 | CN100424981C Motor controller |
| 10/08/2008 | CN100424980C Apparatus for compensating for speed error of motor |
| 10/07/2008 | US7432683 PWM pattern sequence to reduce losses in voltage source inverters |
| 10/07/2008 | US7432675 Method of removing foreign particles from heat transfer surfaces of heat sinks |
| 10/07/2008 | US7432674 Control system |
| 10/07/2008 | US7432673 Method, medium, and apparatus controlling current gain change of a spindle motor driver |
| 10/07/2008 | CA2312254C Multipole switching module |
| 10/02/2008 | WO2008117603A1 Motor controller and motor control method |
| 10/02/2008 | US20080238347 Motor Control Device |
| 10/01/2008 | CN201124414Y Single chip multiple servomotor controller |
| 10/01/2008 | CN101277086A Multi-motor application for electric toy, application regulating system and matching regulation means thereof |
| 10/01/2008 | CN100423440C Method and apparatus for starting a gas turbine using a polyphase electric power generator |
| 10/01/2008 | CN100422980C Hardware based configurable motion control apparatus and method |
| 09/30/2008 | US7429837 Apparatus and method of driving a light powered system |
| 09/30/2008 | US7429836 Motor driver circuit, control method thereof, and electronic apparatus |
| 09/25/2008 | US20080231223 Rotor Driving Control Device and Image Forming Apparatus |
| 09/24/2008 | CN201122920Y Four-wheel independent driving electric vehicle double-motor controller |
| 09/24/2008 | CN101272942A Hybrid automobile and method of controlling the same |
| 09/24/2008 | CN100421348C Motor driving device |
| 09/23/2008 | US7428439 Wireless foot control system with optical transmitter and transceiver |
| 09/18/2008 | DE102007055837A1 Last-Ansteuerverfahren Load-driving |
| 09/17/2008 | CN201118497Y Dual electromotor synchronization servo drive |
| 09/16/2008 | US7425806 System and method for controlling a variable speed drive |