Issued Patents All Time
Showing 101–125 of 134 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7652443 | Method and system for controlling a power inverter in electric drives | Stephen T. West, Brian A. Welchko, Silva Hiti | 2010-01-26 |
| 7642737 | Anti-windup control for a current regulator of a pulse width modulation inverter | Bonho Bae, Silva Hiti, Nitinkumar R. Patel | 2010-01-05 |
| 7622877 | Method and system for controlling permanent magnet AC machines | Silva Hiti, Khwaja M. Rahman | 2009-11-24 |
| 7595600 | Method and system for torque control in permanent magnet machines | Nitinkumar R. Patel, Brian A. Welchko, Bonho Bae | 2009-09-29 |
| 7576500 | Method and system for operating a motor to reduce noise in an electric vehicle | Nitinkumar R. Patel, Mohammad N. Anwar, Silva Hiti, Brian A. Welchko, Lisa M. Talarico | 2009-08-18 |
| 7518335 | Method and apparatus for PWM control of voltage source inverter to minimize current sampling errors in electric drives | Stephen T. West, Brian A. Welchko, Silva Hiti | 2009-04-14 |
| 7471526 | Method and apparatus to reduce PWM voltage distortion in electric drives | Brian A. Welchko, Bonho Bae, Silva Hiti | 2008-12-30 |
| 7459874 | System and method for controlling electric drive systems | Bon Ho Bae, Nitinkumar R. Patel | 2008-12-02 |
| 7449859 | Reduction of subharmonic oscillation at high frequency operation of a power inverter | Bonho Bae, Nitinkumar R. Patel, Silva Hiti | 2008-11-11 |
| 7432683 | PWM pattern sequence to reduce losses in voltage source inverters | Brian A. Welchko, Silva Hiti, Stephen T. West | 2008-10-07 |
| 7421301 | Speed-variable maximum delay clamping when using variable-delay random PWM switching | Daniel L. Kowalewski | 2008-09-02 |
| 7411801 | Method and apparatus for controlling voltage linearity of voltage source inverters | Brian A. Welchko, Silva Hiti | 2008-08-12 |
| 7391181 | Loss minimized PWM for voltage source inverters taking into account inverter non-linearity | Brian A. Welchko, Silva Hiti | 2008-06-24 |
| 7307401 | Method and apparatus for PWM control of voltage source inverter | Slobodan Gataric, Brian A. Welchko, Silva Hiti, Steve West | 2007-12-11 |
| 7286375 | Dead-time compensation method for electric drives | Brian A. Welchko, Silva Hiti | 2007-10-23 |
| 7218071 | Method and apparatus for increasing AC motor torque output at low frequency | Brian A. Welchko, Silva Hiti | 2007-05-15 |
| 7211984 | Start-up and restart of interior permanent magnet machines | Nitinkumar R. Patel, Thomas P. O'Meara | 2007-05-01 |
| 7088077 | Position-sensorless control of interior permanent magnet machines | James M. Nagashima, Khwaja M. Rahman, Nitinkumar R. Patel, Terence G. Ward, Stanley K. Fujii | 2006-08-08 |
| 7042186 | Decoupling a harmonic signal from a signal path | Constantin C. Stancu, Silva Hiti, Nitinkumar R. Patel | 2006-05-09 |
| 7023168 | Field weakening motor control system and method | Nitinkumar R. Patel, Seung Ki Sul, Bon Ho Bae | 2006-04-04 |
| 7015667 | Current regulation for a field weakening motor control system and method | Nitinkumar R. Patel | 2006-03-21 |
| 7002318 | Position sensor fault tolerant control for automotive propulsion system | Sean E Gleason, Nitinkumar R. Patel, 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 | Nitinkumar R. Patel, 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, Nitinkumar R. Patel | 2005-12-27 |
| 6972534 | Delay compensation for stable current regulation when using variable-delay random PWM switching | Daniel L. Kowalewski | 2005-12-06 |