Patents for H02P 29 - Arrangements for regulating or controlling electric motors, appropriate for both ac- and dc-motors (5,779)
01/1998
01/22/1998WO1998002959A1 Method for commutating a brushless motor and power supply for a brushless motor
01/22/1998DE19628585A1 Verfahren zum Kommutieren eines bürstenlosen Motors und Speiseschaltung für einen bürstenlosen Motor A method for commutating a brushless motor and supply circuit for a brushless motor
01/21/1998EP0820142A1 Ac motor with reactor connected to power source
01/20/1998US5710500 Motor speed control apparatus using phase-advance based estimated disturbance signal
01/15/1998WO1998001937A2 A connection means between a frequency converter and its load
01/14/1998CN1170480A Circuit and process for operating adjusting drive
01/14/1998CN1170479A Circuit for detecting overload in adjusting drive
01/14/1998CN1170275A Driving circuit for switched reluctance motor
01/13/1998US5708336 Thermal control system for a motor
01/07/1998EP0816955A1 Electronic circuit and timepiece containing such a circuit
01/06/1998US5704136 Drying operation adjusting method for washing machine
12/1997
12/29/1997EP0814473A2 Harddisk spindle motor controller with either PWM or linear current control output
12/18/1997DE19725237A1 Controlling drive motor speed of battery-powered lawn mower
12/17/1997EP0812753A2 Method and apparatus for detecting the angle of rotation and load torque of a DC motor
12/17/1997EP0616417B1 Method for control of ac motor
12/16/1997US5698960 Motor servo system
12/11/1997WO1997046924A1 Motor-regulating device and method
12/11/1997DE19723222A1 Index signal generator for spindle motor rotation in floppy disc unit
12/11/1997DE19622699A1 Regeleinrichtung und -verfahren für Motoren Control system and procedures for engines
12/10/1997EP0658289B1 Process and device for driving a multiplicity of loads
12/10/1997CN1167199A Automatic door controller
12/09/1997US5696642 Circuit for controlling the rotation of a rotating member
12/03/1997CN1166722A Device for controlling speed of rotating motor
11/1997
11/27/1997DE19633415C1 Monitoring and controlling the opening and closure of electrically operated systems e.g. in motor vehicle
11/25/1997US5691613 Method for determining a rotor position of a rotary motor or linear motor, and circuit arrangement for carrying out the method
11/19/1997EP0808010A2 System and method for protecting a single phase motor from circulating currents
11/19/1997CN1165368A Motor control apparatus, motor control method, disk apparatus and disk access method
11/19/1997CN1165215A Drying operation adjusting method for washing machine
11/18/1997US5689163 Motor controller
11/12/1997EP0806717A1 Method of estimating disturbance load on servomotors
11/06/1997DE19716113A1 Elektrische Leistungsstrang-Baugruppe Electric power train assembly
11/06/1997DE19617867A1 Speed regulation method for DC and AC electric motors
11/06/1997DE19617866A1 Speed regulation method for DC and AC electric motors
11/05/1997EP0805383A1 Apparatus for controlling speed of a rotary motor
11/05/1997EP0804324A1 Compensating for efficiency variations in electric motors
11/04/1997US5682634 Method and device for controlling speed of a washing machine motor
10/1997
10/30/1997DE19715716A1 Current control system for linear magnetic coil
10/29/1997EP0803970A2 Overshootfree speed control method for dc and ac motors
10/29/1997EP0803968A1 Motor speed controller
10/29/1997EP0803465A2 Equipment for detecting the instantaneous load and/or the long duration stress state of handling means, in particular of lifting devices
10/28/1997US5682314 Controller apparatus for vehicle
10/16/1997DE19631384C1 Electric machine with rotor in drive train e.g. of motor vehicle
10/15/1997EP0801462A1 Device generating three-phase position detecting signal with two coils
10/09/1997WO1997037416A1 Process for detecting abutment and blocking in an electric motor
10/08/1997EP0800128A2 Motor control apparatus, motor control method, disk apparatus and disk access method
10/08/1997EP0799678A2 Multiple impact motor drive for stapling
10/08/1997EP0799515A1 Circuit and process for operating an adjusting drive
10/08/1997EP0799514A1 Circuit for detecting overload in an adjusting drive
10/07/1997US5675231 Systems and methods for protecting a single phase motor from circulating currents
10/07/1997CA2110208C Method and system for estimating inertia of 2-mass system during speed control
10/02/1997DE19612596A1 Anschlags- und Blockiererkennung bei einem Elektromotor Stop and jamming detection in an electric motor
09/1997
09/23/1997US5670859 Feedback control of an inverter output bridge and motor system
09/10/1997EP0793591A1 Method of detecting an inoperable pump motor in an anti-lock braking system
09/09/1997US5666034 Method for controlling velocity of a rotary motor and an apparatus therefor
09/03/1997EP0793157A2 Automatic door controller
09/03/1997CN1158675A Motor speed controller
09/02/1997US5663626 Applied-voltage fuzzy control process for induction motors and device for performing it
08/1997
08/27/1997CN1157882A Method and apparatus for driving pump motor for refrigerator dispenser
08/27/1997CN1157866A Parameters determination method, of membership function for fuzzy control of washing machine
08/26/1997US5660129 Sewing machine
08/19/1997US5659472 Motor controller
08/14/1997WO1997029540A1 Switch mode sine wave driver for polyphase brushless permanent magnet motor
08/14/1997WO1997008477A3 System for actively reducing radial vibrations in a rotating shaft, and method of operating the system to achieve this
08/14/1997CA2215787A1 Switch mode sine wave driver for polyphase brushless permanent magnet motor
08/06/1997EP0721695B1 Electric motor with torque detecting means
08/05/1997US5654619 Method of feedforward control for servomotor
07/1997
07/29/1997US5652701 Inverter operation command apparatus
07/29/1997US5652494 Angle controller for a switched reluctance drive utilizing a high frequency clock
07/22/1997US5650709 Variable speed AC motor drive for treadmill
07/17/1997WO1997025770A1 Ac motor with reactor connected to power source
07/08/1997US5646492 Electric motor controller having independent responses to instructions and external disturbances
07/02/1997EP0782246A1 Method and apparatus for detecting runaway of motor
07/02/1997CN1153423A Angle controller for switched reluctance drive utilizing high frequency clock
06/1997
06/18/1997CN1152047A Drying stroke cotnrol method for washing machine
06/05/1997WO1997020260A1 Method of estimating disturbance load on servomotors
06/03/1997US5634794 Aircraft simulator and method
05/1997
05/21/1997CN1150352A Speed controlling method for rotary motor and apparatus thereof
05/20/1997US5632000 Device for optimizing the speed control behavior of a subfractional horsepower motor
05/13/1997US5629590 Rotational drive control device for variable speed drive motor
05/09/1997WO1997016774A1 Motor controlled surgical system
05/09/1997CA2233223A1 Motor controlled surgical system
05/07/1997DE19643909A1 Robot motor control device
05/06/1997US5627697 Circuit arrangement for motor speed control
04/1997
04/30/1997CN1148912A Device for converting a resistance value into a control signal which depends on the resistance value, and electrical apparatus comprising such device
04/23/1997EP0769851A2 Digital locked loop
04/22/1997US5623190 Method and apparatus for controlling an AC motor and detecting malfunctions
04/17/1997DE19642396A1 DC commutator motor with simplified control of output torque e.g. for motor vehicle steering control
04/10/1997WO1997013317A1 Device generating three-phase position detecting signal with two coils
04/01/1997US5617266 Motor stabilizing control apparatus for use with motors, including for use with a drum motor in a magnetic tape system
03/1997
03/06/1997WO1997008477A2 System for actively reducing radial vibrations in a rotating shaft, and method of operating the system to achieve this
03/06/1997WO1997008456A1 Starter/generator for an internal combustion engine, in particular a vehicle engine
03/06/1997WO1997008440A1 Drive system, electrical machine suitable for use in such a drive system and method of operating an electrical machine in the drive system
03/06/1997WO1997008439A1 Drive system with a drive engine, an electrical machine and a battery
03/06/1997WO1997008438A1 System for actively reducing rotational non-uniformity of a shaft, in particular the drive shaft of an internal-combustion engine, and method of operating the system
03/06/1997WO1997008437A1 Drive system, in particular a drive system for a motor vehicle, and method of operating the system
03/06/1997WO1997008436A1 Drive system, particularly for a motor vehicle, and process for operating it
03/06/1997WO1997008008A1 Traction control system and method, for a motor vehicle, using an electrical machine
03/06/1997DE19532164A1 Antriebssystem, insbesondere für ein Kraftfahrzeug, und Verfahren zum Betreiben desselben Of the same drive system, especially for a motor vehicle, and method of operating
03/06/1997DE19532129A1 System zur aktiven Verringerung von Drehungleichförmigkeiten einer Welle, insbesondere der Triebwelle eines Verbrennungsmotors, und Verfahren hierzu System for active reduction of rotational non-uniformities of a shaft, especially the drive shaft of an internal combustion engine and method therefor
03/06/1997DE19532128A1 Antriebssystem, insbesondere für ein Kraftfahrzeug, und Verfahren zum Betreiben desselben Of the same drive system, especially for a motor vehicle, and method of operating
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