Steven E. Schulz
134Patents
20h-index
95Co-inventors
93Inventor score
Filing activity: Jun 30, 1999 → Jan 26, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8054084B2 | Methods and systems for diagnosing stator windings in an electric motor | Physics | 77 | Active |
| US8354817B2 | Methods and systems for diagnosing stator windings in an electric motor | Physics | 67 | Active |
| US6894454B2 | Position sensorless control algorithm for AC machine | Electricity | 48 | Expired |
| US6154381A | High efficiency power system with plural parallel DC/DC converters | Performing Operations; Transporting | 46 | Expired |
| US6166934A | High efficiency power system with plural parallel DC/DC converters | Performing Operations; Transporting | 42 | Expired |
| US7002318B1 | Position sensor fault tolerant control for automotive propulsion system | Emerging Cross-Sectional Technologies | 36 | Expired |
| US6924617B2 | Position sensorless control algorithm for AC machine | Electricity | 36 | Expired |
| US7768220B2 | Harmonic torque ripple reduction at low motor speeds | Electricity | 34 | Active |
| US7411801B2 | Method and apparatus for controlling voltage linearity of voltage source inverters | Electricity | 31 | Active |
| US7391181B2 | Loss minimized PWM for voltage source inverters taking into account inverter non-linearity | Emerging Cross-Sectional Technologies | 29 | Active |
| US7768807B2 | Bidirectional no load control with overshoot protection | Electricity | 29 | Active |
| US7211984B2 | Start-up and restart of interior permanent magnet machines | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US6972534B1 | Delay compensation for stable current regulation when using variable-delay random PWM switching | Electricity | 28 | Expired |
| US7307401B2 | Method and apparatus for PWM control of voltage source inverter | Electricity | 27 | Expired |
| US7952308B2 | Method and apparatus for torque ripple reduction | Electricity | 26 | Active |
| US6763622B2 | Amplitude detection method and apparatus for high frequency impedance tracking sensorless algorithm | Emerging Cross-Sectional Technologies | 26 | Expired |
| US7023168B1 | Field weakening motor control system and method | Electricity | 25 | Expired |
| US9241428B1 | Inverter assembly | Electricity | 23 | Active |
| USD851114S1 | Display screen with user interface | General | 21 | Active |
| US7839108B2 | Electric motor stator winding temperature estimation | Electricity | 20 | Active |
| US8487575B2 | Electric motor stator winding temperature estimation | Physics | 19 | Active |
| US7459874B2 | System and method for controlling electric drive systems | Emerging Cross-Sectional Technologies | 18 | Active |
| US6646407B2 | Electric motor control having DC-DC converter and method of using same | Electricity | 16 | Expired |
| US8288886B2 | Method and apparatus for avoiding electrical resonance in a vehicle having a shared high-voltage bus | Emerging Cross-Sectional Technologies | 16 | Active |
| US8421391B2 | Electric motor stator winding temperature estimation systems and methods | Electricity | 15 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.