| Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284) |
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| 01/28/2009 | CN101355337A Control method for driving permanent magnet synchronous motor base on magnetic field orthotropic control |
| 01/28/2009 | CN101355332A Single processor dual motor control |
| 01/28/2009 | CN101355285A Multilayer combined straight-line reluctance generator and electric generator using wave energy |
| 01/28/2009 | CN101354570A Control system |
| 01/28/2009 | CN101353130A AC mine winder rotor frequency modulation pressure regulating apparatus |
| 01/28/2009 | CN100456592C Method for error handling in a converter circuit for wiring of three voltage levels |
| 01/28/2009 | CN100455874C DSP based control-drive integrated two-freedom degree pan |
| 01/22/2009 | WO2009011461A1 Inverter control device and vehicle |
| 01/22/2009 | US20090021198 Motor Drive Control System and Method for Controlling the Same |
| 01/21/2009 | EP2016670A1 Mitigation of harmonic currents and conservation of power in non-linear load systems |
| 01/21/2009 | CN201185405Y Digital servo control apparatus of electric machine operation mechanism for high-voltage circuit-breaker |
| 01/21/2009 | CN201185388Y Duplicate supply frequency converter for numeral electromagnetic heat pump air conditioner |
| 01/21/2009 | CN201184650Y Constant temperature frequency conversion module group for air conditioner system |
| 01/21/2009 | CN101351959A Feedback control method and apparatus for electric motor |
| 01/21/2009 | CN101351958A Method and system of control of the converter of an electricity generation facility connected to an electricity network in the presence of voltage sags in said network |
| 01/21/2009 | CN101351956A Electric motor drive control method and apparatus |
| 01/21/2009 | CN101351355A Vehicle control device, vehicle, and vehicle control method |
| 01/21/2009 | CN101349924A Drive device and method |
| 01/21/2009 | CN100454754C Voltage type variable-frequency control system using pulse width modulation synchronous switching |
| 01/21/2009 | CN100454751C Controller for synchronous motor |
| 01/20/2009 | US7479722 Relative drive device |
| 01/15/2009 | WO2009008742A1 Multi output inverter |
| 01/15/2009 | WO2009007175A2 Electric motor commutator and method for driving an electric motor commutator |
| 01/15/2009 | US20090015185 Semiconductor Module, and Hybrid Vehicle Drive Device Including the Same |
| 01/15/2009 | US20090015183 Power tools |
| 01/15/2009 | DE102007030626A1 Control device operating method for electric drive, involves controlling converter unit such that motor is switched on to voltage during pulse width and is switched off to voltage during difference of cycle time and pulse width |
| 01/15/2009 | DE10066381B4 Verfahren zur Berechnung der Parameter eines Induktionsmotors A method for calculating the parameters of an induction motor |
| 01/14/2009 | EP1440501B1 Motor control circuit and associated full bridge switching arrangement |
| 01/14/2009 | CN201181928Y Rotor variable-frequency control apparatus based on slope compensating current control model |
| 01/14/2009 | CN201181927Y Full speed range control device of double-feedback electric motor |
| 01/14/2009 | CN201181060Y DC frequency conversion air conditioner |
| 01/14/2009 | CN101346877A Method for controlling a polyphase voltage inverter |
| 01/14/2009 | CN101345511A Systems and methods for operating Z-source inverter inductors in a continuous current mode |
| 01/14/2009 | CN101345510A System and method for controlling input line harmonics in a motor drive |
| 01/14/2009 | CN101345505A Electric synchronization control method of four frequency conversion motors with double winding drums and double hanging points |
| 01/14/2009 | CN101345464A Double-feed motor adopting AC-DC-AC current transformer for speed regulation and its start control method |
| 01/14/2009 | CN100452641C Clamping five level variable frequency driving device utilizing internal and external ring double-group rectifier bridge |
| 01/14/2009 | CN100452640C Program-control frequency converting device |
| 01/13/2009 | US7477037 Method for parallel control of series-cell based drives |
| 01/13/2009 | US7477030 Ceiling fan with illumination |
| 01/08/2009 | WO2009004969A1 Electric power steering device |
| 01/08/2009 | WO2009004943A1 Method of calculating electric power consumption saving effect in energy-saving drive support method, energy-saving drive support system, and calculation program for electric power consumption saving effect |
| 01/08/2009 | WO2009004888A1 Inverter and method for detecting output voltage of the same |
| 01/08/2009 | DE102008025445A1 Vorrichtung, Systeme und Verfahren zum verringern von Verlusten eines Spannungszwischenkreisumrichters Apparatus, systems and methods for reducing losses of a voltage source inverter |
| 01/07/2009 | EP2012426A2 Inverter drive and heat pump water heater |
| 01/07/2009 | EP2011709A1 Internal combustion engine stop control device and stop control method |
| 01/07/2009 | EP2011225A1 Motor control |
| 01/07/2009 | CN201178400Y Frequency conversion driving sewing machine and electric motor thereof |
| 01/07/2009 | CN201178399Y Stepless speed regulating fan having zero-cross detection circuit |
| 01/07/2009 | CN201178397Y General intelligent frequency conversion control energy saving apparatus |
| 01/07/2009 | CN201176924Y Three phase linear motor drive oil-submersible pump automatic control device for oil extraction |
| 01/07/2009 | CN101341651A Motor-driven control device and motor-driven control method |
| 01/07/2009 | CN101340174A System asynchronously implementing frequency convertion and speed regulation of rotor by dragging multiple motors with inverter |
| 01/07/2009 | CN101339644A Method of calculating electric power consumption saving effect in energy-saving drive support method and system |
| 01/07/2009 | CN100449934C Method for the controlled application of a stator-current target value and a torque target value for a polyphase machine that is supplied by an electronic power converter |
| 01/07/2009 | CN100449931C Apparatus and method for realizing switch magnetic resistance motor electronic gear function |
| 01/07/2009 | CN100449436C Intelligent automobile body network control system device and control method thereof |
| 01/01/2009 | US20090001924 System and method for dynamic field weakening |
| 01/01/2009 | US20090001923 Systems and methods for operating z-source inverter inductors in a continuous current mode |
| 01/01/2009 | US20090001922 Motor controlling device, motor drive system, method of motor control, semiconductor device and electronic device |
| 01/01/2009 | US20090001915 Method and apparatus for active voltage control of electric motors |
| 12/31/2008 | WO2009001738A1 Motor drive system and its control method |
| 12/31/2008 | WO2009001584A1 Controller of electric vehicle |
| 12/31/2008 | WO2009001468A1 Power converter |
| 12/31/2008 | WO2009001291A2 A control system without position sensors for a synchronous electric motor |
| 12/31/2008 | WO2009001285A2 System for controlling the steady-state rotation of a synchronous electric motor |
| 12/31/2008 | WO2009000989A2 Method for controlling a rotary electric machine in case of load shedding and corresponding power control module |
| 12/31/2008 | EP2009782A1 Electric motor control apparatus |
| 12/31/2008 | CN201174684Y Large-power high-reliable chopped series excitation speed regulating device |
| 12/31/2008 | CN201174683Y Tipping variable-frequency speed regulating apparatus preventing stall |
| 12/31/2008 | CN201174042Y Master unit control module of industrial high-efficient frequency-converting speed-regulating system |
| 12/31/2008 | CN201173961Y Large power simulation accumulator |
| 12/31/2008 | CN101336173A Power source apparatus for vehicle, vehicle and method of controlling power source apparatus |
| 12/31/2008 | CN101336171A Electromagnetic suspension device |
| 12/31/2008 | CN101335499A Controlling method of 4 phase permanent magnet fault tolerant motor |
| 12/31/2008 | CN101334027A Frequency conversion screw type cold compressor three-support structure |
| 12/31/2008 | CN101332618A Numerical control non-fastening-shaft rotating cutter and special transducer thereof and feed automatic speed regulation method |
| 12/31/2008 | CN100448160C Motor operation control device |
| 12/31/2008 | CN100448158C Motor driving apparatus |
| 12/31/2008 | CN100448146C Voltage conversion device and computer-readable recording medium having program recorded thereon for computer to control voltage conversion |
| 12/30/2008 | US7471003 Vehicular power control apparatus |
| 12/25/2008 | US20080315817 Control system for a hybrid electric vehicle and a method for controlling a hybrid electric vehicle |
| 12/25/2008 | US20080315803 Hybrid electric vehicle |
| 12/24/2008 | WO2008156194A1 Ac motor drive controller |
| 12/24/2008 | EP2007006A2 Inverter device and air conditioner |
| 12/24/2008 | DE102008025446A1 Verfahren und System zum Betreiben eines Motors in einem Elektrofahrzeug in geräuschreduzierender Weise A method and system for operating a motor in an electric vehicle in noise-reducing manner |
| 12/24/2008 | CN201171192Y Apparatus for regulating speed of novel tri-phase switch reluctance motor |
| 12/24/2008 | CN201171184Y Frequency converter/motor controller |
| 12/24/2008 | CN101331677A Control device and corresponding control method for a boost converter in a motor drive system |
| 12/24/2008 | CN101331673A Motor driving device and car provided with the same |
| 12/24/2008 | CN101330275A Induction motor drive unit, motor drive system, and elevating system |
| 12/24/2008 | CN101330274A Controller for multifunctional nine-level frequency-conversion voltage-regulating energy-saving equipment with high power and high voltage |
| 12/24/2008 | CN101330273A Method for automatically hoisting torque of universal frequency converter base on active current component |
| 12/24/2008 | CN101330272A Oil pump systems and methods for preventing torque overload in motors of oil pump systems |
| 12/24/2008 | CN101330259A Limitation of voltage pulse |
| 12/24/2008 | CN101328790A Mute chamber type natural gas electric generating set monitoring apparatus |
| 12/24/2008 | CN100446409C Actuator current control method |
| 12/24/2008 | CN100446408C Motor drive apparatus, vehicle having the same mounted therein, and computer readable storage medium having a program stored therein to cause computer to control voltage conversion |
| 12/24/2008 | CN100446407C Method of controlling motor drive speed |
| 12/23/2008 | CA2322539C Motor controller |