Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7508149 | Oil pump systems and methods for preventing torque overload in motors of oil pump systems | — | 2009-03-24 |
| 7459874 | System and method for controlling electric drive systems | Bon Ho Bae, Steven E. Schulz | 2008-12-02 |
| 7449859 | Reduction of subharmonic oscillation at high frequency operation of a power inverter | Bonho Bae, Steven E. Schulz, Silva Hiti | 2008-11-11 |
| 7282886 | Method and system for controlling permanent magnet motor drive systems | Bon Ho Bae, James M. Nagashima, Tae-Suk Kwon, Seung Ki Sul | 2007-10-16 |
| 7262536 | Gearless wheel motor drive system | Khwaja M. Rahman, Silva Hiti, Terence G. Ward, James M. Nagashima, Fabio Crescimbini +1 more | 2007-08-28 |
| 7211984 | Start-up and restart of interior permanent magnet machines | Steven E. Schulz, Thomas P. O'Meara | 2007-05-01 |
| 7088077 | Position-sensorless control of interior permanent magnet machines | James M. Nagashima, Khwaja M. Rahman, Steven E. Schulz, Terence G. Ward, Stanley K. Fujii | 2006-08-08 |
| 7042186 | Decoupling a harmonic signal from a signal path | Constantin C. Stancu, Silva Hiti, Steven E. Schulz | 2006-05-09 |
| 7023168 | Field weakening motor control system and method | Steven E. Schulz, Seung Ki Sul, Bon Ho Bae | 2006-04-04 |
| 7015667 | Current regulation for a field weakening motor control system and method | Steven E. Schulz | 2006-03-21 |
| 7002318 | Position sensor fault tolerant control for automotive propulsion system | Steven E. Schulz, Sean E Gleason, James M. Nagashima, Yu-Seok Jeong, Seung Ki Sul +1 more | 2006-02-21 |
| 6989641 | Methods and apparatus for fault-tolerant control of electric machines | Steven E. Schulz, James M. Nagashima, Yu-Seok Jeong, Seung Ki Sul | 2006-01-24 |
| 6979968 | Method and system for managing processor execution time utilizing variable frequency switching | James M. Nagashima, Thomas P. O'Meara, Steven E. Schulz | 2005-12-27 |
| 6924617 | Position sensorless control algorithm for AC machine | Steven E. Schulz, James M. Nagashima, Seung Ki Sul, Bon Ho Bae | 2005-08-02 |
| 6894454 | Position sensorless control algorithm for AC machine | Steven E. Schulz, James M. Nagashima, Seung Ki Sul, Yo Chan Son, Bon Ho Bae | 2005-05-17 |
| 6841969 | Flux observer in a sensorless controller for permanent magnet motors | Steven E. Schulz | 2005-01-11 |
| 6763622 | Amplitude detection method and apparatus for high frequency impedance tracking sensorless algorithm | Steven E. Schulz | 2004-07-20 |
| 6762573 | System and method for estimating rotor position of a permanent magnet motor | — | 2004-07-13 |
| 6760669 | Method and system of reducing inefficiencies in an internal permanent magnet motor using fuzzy logic | Thomas P. O'Meara | 2004-07-06 |
| 6304052 | Control system for a permanent magnet motor | Thomas P. O'Meara | 2001-10-16 |
| 6208110 | Method for determining rotor position | Thomas P. O'Meara | 2001-03-27 |
| 6163127 | System and method for controlling a position sensorless permanent magnet motor | Thomas P. O'Meara | 2000-12-19 |
| 6008618 | Zero speed start-up for a speed sensorless induction motor drive | Bimal K. Bose, Kaushik Rajashekara | 1999-12-28 |