Issued Patents All Time
Showing 25 most recent of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11043912 | Sensorless position estimation for interior permanent magnet synchronous motor | Daniel Richard Luedtke, Mustafa Mohamadian, Lakshmi Narayanan Srivatchan | 2021-06-22 |
| 10116174 | Synchronous reluctance electric machine | Constantin C. Stancu, Peter J. Savagian, Khwaja M. Rahman, Robert T. Dawsey | 2018-10-30 |
| 10056792 | Interior permanent magnet electric machine | Khwaja M. Rahman, Constantin C. Stancu, Peter J. Savagian, Robert T. Dawsey | 2018-08-21 |
| 8913352 | Method and apparatus for detecting a desaturation fault in an inverter module | Konstantin S. Majarov, David Tang, Reynaldo Arturo Suazo Zepeda, Daniel L. Kowalewski | 2014-12-16 |
| 8634976 | Systems and methods for managing torque capability in electric motor systems | Brian A. Welchko, Leah Dunbar, William R. Cawthorne, Steven E. Schulz | 2014-01-21 |
| 8487575 | Electric motor stator winding temperature estimation | Chia-Chou Yeh, Yo Chan Son, Steven E. Schulz | 2013-07-16 |
| 8414270 | Speed control of an electrically-actuated fluid pump | Jy-Jen F. Sah, Ali K. Naqvi, Vincent Rawls | 2013-04-09 |
| 8378605 | Method and apparatus for monitoring a system including a sensorless electric motor | Wei D. Wang, Yo Chan Son | 2013-02-19 |
| 8340848 | Method and system for sensorless control of an electric motor | Yo Chan Son, Steven E. Schulz | 2012-12-25 |
| 8339081 | Method and apparatus for low speed permanent magnet motor operation | Yo Chan Son | 2012-12-25 |
| 8319460 | Method and system for initiating operation of an electric motor | Yo Chan Son, Jihoon Jang, Brian A. Welchko, Steven E. Schulz | 2012-11-27 |
| 8310189 | Position sensorless control of permanent magnet motors | Yo Chan Son | 2012-11-13 |
| 8269445 | Limp home operational mode for an electric vehicle | Peter J. Savagian, Yo Chan Son, Rostam Dehmoobed Nasrabadi | 2012-09-18 |
| 8258736 | Fail-safe controls for electric traction drive systems | Tim M. Grewe, Yo Chan Son | 2012-09-04 |
| 8253360 | Vector controlled motor drive system implementing pulse width modulated (PWM) waveforms | Steven E. Schulz, Yo Chan Son | 2012-08-28 |
| 8174222 | Methods, systems and apparatus for dynamically controlling an electric motor that drives an oil pump | Yo Chan Son | 2012-05-08 |
| 7843162 | Current regulator and current control method and system for AC motors | Bonho Bae, Steven E. Schulz, James M. Nagashima, Jung Sik Yim, Seung Ki Sul | 2010-11-30 |
| 7839108 | Electric motor stator winding temperature estimation | Yo Chan Son, Silva Hiti, Steven E. Schulz | 2010-11-23 |
| 7679309 | Method and system for motor control with delay compensation | Steven E. Schulz, Bonho Bae, Stephen T. West | 2010-03-16 |
| 7659684 | Method and system for operating a motor to avoid selected pulse ratio values | Bonho Bae, Steven E. Schulz | 2010-02-09 |
| 7642737 | Anti-windup control for a current regulator of a pulse width modulation inverter | Bonho Bae, Steven E. Schulz, Silva Hiti | 2010-01-05 |
| 7595600 | Method and system for torque control in permanent magnet machines | Brian A. Welchko, Bonho Bae, Steven E. Schulz | 2009-09-29 |
| 7592766 | Gearless wheel motor drive system | Silva Hiti, Khwaja M. Rahman | 2009-09-22 |
| 7576500 | Method and system for operating a motor to reduce noise in an electric vehicle | Mohammad N. Anwar, Silva Hiti, Brian A. Welchko, Steven E. Schulz, Lisa M. Talarico | 2009-08-18 |
| 7525269 | Method and apparatus for sensorless position control of a permanent magnet synchronous motor (PMSM) drive system | Bon Ho Bae, James M. Nagashima | 2009-04-28 |