| Patents for H02P 29 - Arrangements for regulating or controlling electric motors, appropriate for both ac- and dc-motors (5,779) |
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| 12/03/1998 | DE19824201A1 Overheat protection system for circuit module |
| 12/02/1998 | CN1200597A Circuit arrangement and method for operating electric motor |
| 11/25/1998 | EP0880222A1 Circuit arrangement and method for operating an electric motor |
| 11/18/1998 | CN1199276A Method and apparatus for controlling servomotor in two inertial systems |
| 11/11/1998 | EP0877462A2 Method and apparatus for multi-function electronic motor protection |
| 11/11/1998 | EP0876554A1 Starter/generator for an internal combustion engine, in particular a vehicle engine |
| 11/11/1998 | CN1198854A Mechanical vibration detector and vibration damping controller |
| 11/10/1998 | US5834912 Motor speed control device |
| 11/03/1998 | US5831403 Controller for an automatic door system |
| 10/27/1998 | US5828014 Elevator speed control circuit |
| 10/20/1998 | US5825150 Method of detecting, diagnosing and automatically correcting abnormalities in servo control system |
| 10/13/1998 | US5821717 Method and circuit for driving a hard disk drive spindle motor |
| 10/07/1998 | CN1195223A Semiconductor integrated circuit for motor control |
| 10/06/1998 | US5819202 Apparatus for detecting an abnormality of a control system |
| 10/06/1998 | US5818186 Multiple impact motor drive for stapling |
| 09/29/1998 | US5814962 Servo controller |
| 09/24/1998 | DE19709296A1 Verfahren und Vorrichtung zur Identifikation der Systemparameter Statorwiderstand und Rotorwiderstand einer geberlosen, feldorientiert betriebenen Drehfeldmaschine Method and apparatus for identification of system parameters stator and rotor resistance of a sensor-less, field-oriented induction machine |
| 09/17/1998 | DE19808671A1 Motor control circuit |
| 09/17/1998 | DE19709134A1 Antriebssystem, insbesondere für ein Kraftfahrzeug und Verfahren zur Steuerung der Leerlaufdrehzahl eines Verbrennungsmotors Drive system, in particular for a motor vehicle and method for controlling the idling speed of an internal combustion engine |
| 09/11/1998 | WO1998039663A1 Method and device for identifying the system parameters stator resistance and rotor resistance of a transmitter-free induction machine operated in a field-oriented manner |
| 09/11/1998 | WO1998039560A1 Propulsion system, especially for a motor vehicle and method for regulating the idling speed of an internal combustion engine |
| 09/08/1998 | US5804936 Motor controlled surgical system |
| 09/03/1998 | WO1998038661A1 Motor drive |
| 09/02/1998 | EP0861514A1 Jamming detection device for electrical drives |
| 08/25/1998 | US5798626 For supplying a control signal to a motor |
| 08/25/1998 | US5798623 Switch mode sine wave driver for polyphase brushless permanent magnet motor |
| 08/20/1998 | DE19704939A1 Output shaft revs regulation method for servo-drive |
| 08/19/1998 | EP0858623A1 Motor controlled surgical system |
| 08/13/1998 | WO1998035424A1 Electric motor with an upstream frequency converter |
| 08/13/1998 | WO1998026643A3 Procedure and apparatus for the damping of motor vibrations |
| 08/12/1998 | CN1190161A Power changing system for two-way changing between hydraulic energy and electric energy |
| 08/11/1998 | US5793834 Method for detecting position of linear stepping motor and apparatus therefor |
| 08/06/1998 | DE19704226A1 Elektromotor mit vorgeschaltetem Frequenzumrichter Electric motor with a frequency converter |
| 08/04/1998 | US5789935 Motor evaluation data generating method with response delay compensation |
| 07/28/1998 | US5786678 Method and apparatus for automatically adjusting a gain of a servomechanism |
| 07/28/1998 | US5785144 Power steering system/servo control |
| 07/14/1998 | US5781068 Transadmittance amplifier for a motor |
| 07/14/1998 | US5780989 Method and apparatus for AC servo motor control |
| 07/09/1998 | WO1998029285A1 Windshield wiper system |
| 07/08/1998 | EP0852347A1 Method of controlling servomotor |
| 07/01/1998 | EP0851571A2 Motor speed control device |
| 06/30/1998 | US5774630 Parameter set up method of membership functions for fuzzy control of washing machine motor |
| 06/30/1998 | US5773940 Power drive device |
| 06/25/1998 | WO1998026643A2 Procedure and apparatus for the damping of motor vibrations |
| 06/25/1998 | DE19745747A1 Power conversion system for bi-directional conversion between hydraulic and electrical energy, e.g for aircraft |
| 06/24/1998 | EP0849753A2 Switched output stage for controlling or regulating inductive loads |
| 06/18/1998 | DE19707548C1 Motorised drive e.g. for electric multiple-contact or stepping switch |
| 06/17/1998 | EP0847490A1 Drive system, electrical machine suitable for use in such a drive system and method of operating an electrical machine in the drive system |
| 06/17/1998 | EP0847489A1 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 |
| 06/17/1998 | EP0847488A1 Drive system, in particular a drive system for a motor vehicle, and method of operating the system |
| 06/17/1998 | EP0847487A1 Drive system with a drive engine, an electrical machine and a battery |
| 06/17/1998 | EP0847486A1 Drive system, particularly for a motor vehicle, and process for operating it |
| 06/16/1998 | US5767646 Method of and apparatus for detecting anomalous running of motor |
| 06/10/1998 | EP0846951A2 Motor speed control device |
| 06/10/1998 | EP0846065A1 Traction control system and method, for a motor vehicle, using an electrical machine |
| 06/03/1998 | EP0845854A1 Mechanical vibration detector and vibration damping controller |
| 06/03/1998 | EP0845088A2 System for actively reducing radial vibrations in a rotating shaft, and method of operating the system to achieve this |
| 05/26/1998 | US5757596 Motor control assembly and method of controlling same |
| 05/26/1998 | US5757161 Apparatus and method for limiting the speed of an electric motor |
| 05/20/1998 | EP0716781B1 Device for operating a power consumer in a vehicle |
| 05/19/1998 | US5754215 Control circuit for polygon mirror motor and laser beam printing machine using the same |
| 05/13/1998 | EP0639888B1 Method of detecting and regulating load on servomotor |
| 05/13/1998 | CN1181849A Switch mode sine wave driver for polyphase brushless permanent magnet motor |
| 04/29/1998 | EP0838396A1 Power converting system for bidirectional conversion between hydraulic and electrical energy |
| 04/28/1998 | US5744928 Digital locked loop |
| 04/22/1998 | EP0804324A4 Compensating for efficiency variations in electric motors |
| 04/09/1998 | WO1998014129A1 Powered surgical instruments and control unit |
| 04/08/1998 | EP0834984A2 Method for reducing acoustic and vibration energy radiated from rotating machines |
| 04/08/1998 | CN1178412A Absolute angular position calculation apparatus for rotating motor and velocity control apparatus adopting the same |
| 04/07/1998 | US5737483 Motor speed control apparatus for motors |
| 04/07/1998 | US5737223 Power steering apparatus |
| 04/07/1998 | US5737216 For controlling the drive of a rotary body used in an image device |
| 04/07/1998 | US5737199 Fail Check Device and method for switching signal lines |
| 04/07/1998 | US5736884 Device for generating a control signal dependent on a variable resistance value and apparatus comprising such device |
| 04/07/1998 | US5736824 Motor control apparatus |
| 04/02/1998 | DE19637631A1 Anordnung zur Erkennung von Einklemmsituationen bei elektrischen Antrieben Configuration for detecting jamming situations in electric drives |
| 04/01/1998 | EP0833240A2 Loop control detection circuit |
| 03/31/1998 | US5734242 Force control method based on disturbance load estimation |
| 03/26/1998 | WO1998012786A1 Jamming detection device for electrical drives |
| 03/10/1998 | US5726822 Motor control circuit which reduces the speed control gain and disables an oscillation preventing filter when the motor speed is not within a predetermined range |
| 03/05/1998 | DE19736004A1 Device for detecting abnormalities in motor |
| 03/04/1998 | EP0827266A2 High-side type motor current detecting circuit |
| 03/03/1998 | US5723965 Velocity control method and apparatus for servo motors |
| 03/03/1998 | US5723958 Arrangement for operating a consumer in a motor vehicle |
| 02/26/1998 | WO1998001937A3 A connection means between a frequency converter and its load |
| 02/25/1998 | EP0825698A2 Method for supervising and controlling the process of opening and closing electrically driven aggregats |
| 02/18/1998 | CN1173709A Shaping loop of indication signal |
| 02/17/1998 | US5719732 Overload protecting device |
| 02/17/1998 | US5719519 Circuit and method for reconstructing a phase current |
| 02/17/1998 | US5719479 Collision detecting method |
| 02/17/1998 | US5719459 Electric motor for a steering mechanism |
| 02/12/1998 | WO1998005882A1 Electric machine in a driving train, for example of a motor vehicle, and process for driving the same |
| 02/11/1998 | CN1172762A Elevator speed control circuit |
| 02/07/1998 | WO1998028837A1 Motor controller |
| 02/05/1998 | WO1998004835A1 Process for regulating a unit or a frequency converter |
| 02/04/1998 | EP0822114A2 Control system for hybrid vehicle |
| 02/04/1998 | EP0822113A2 Control system for hybrid vehicle |
| 02/03/1998 | US5714859 Servo control apparatus for a motor |
| 01/29/1998 | WO1998003900A1 Method of controlling servomotor |
| 01/28/1998 | EP0820657A1 Switch mode sine wave driver for polyphase brushless permanent magnet motor |