P

Inventor

SCHULZ STEVEN E

US122 patents
⚠️ This page may combine multiple inventors who share the name “SCHULZ STEVEN E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GM GLOBAL TECH OPERATIONS INC

25 patents
US8354817B2Jan 15, 2013

Methods and systems for diagnosing stator windings in an electric motor

GM GLOBAL TECH OPERATIONS INC79 citations98
US8054084B2Nov 8, 2011

Methods and systems for diagnosing stator windings in an electric motor

GM GLOBAL TECH OPERATIONS INC89 citations98
US7768220B2Aug 3, 2010

Harmonic torque ripple reduction at low motor speeds

GM GLOBAL TECH OPERATIONS INC55 citations98
US7839108B2Nov 23, 2010

Electric motor stator winding temperature estimation

GM GLOBAL TECH OPERATIONS INC32 citations93
US7952308B2May 31, 2011

Method and apparatus for torque ripple reduction

GM GLOBAL TECH OPERATIONS INC42 citations92
US7768807B2Aug 3, 2010

Bidirectional no load control with overshoot protection

GM GLOBAL TECH OPERATIONS INC35 citations92
US7642737B2Jan 5, 2010

Anti-windup control for a current regulator of a pulse width modulation inverter

GM GLOBAL TECH OPERATIONS INC21 citations92
US7459874B2Dec 2, 2008

System and method for controlling electric drive systems

GM GLOBAL TECH OPERATIONS INC20 citations92
US7411801B2Aug 12, 2008

Method and apparatus for controlling voltage linearity of voltage source inverters

GM GLOBAL TECH OPERATIONS INC37 citations92
US7307401B2Dec 11, 2007

Method and apparatus for PWM control of voltage source inverter

GM GLOBAL TECH OPERATIONS INC35 citations91
US8358095B2Jan 22, 2013

Method and system for testing electric motors

GM GLOBAL TECH OPERATIONS INC7 citations84
US7880425B2Feb 1, 2011

Electric motor drive systems, motor vehicles, and methods of phase current regulation

GM GLOBAL TECH OPERATIONS INC7 citations84
US7880416B2Feb 1, 2011

Low speed synchronous motor drive operation

GM GLOBAL TECH OPERATIONS INC7 citations84
US7834574B2Nov 16, 2010

Phase current sampling and regulating apparatus and methods, and electric motor drive systems

GM GLOBAL TECH OPERATIONS INC8 citations84
US7774148B2Aug 10, 2010

Torque estimator for IPM motors

GM GLOBAL TECH OPERATIONS INC10 citations84
US7723946B2May 25, 2010

Method and system for pulse position scheduling in electric drives

GM GLOBAL TECH OPERATIONS INC12 citations84
US7679310B2Mar 16, 2010

Method and system for controlling pulse width modulation in a power inverter in electric drives

GM GLOBAL TECH OPERATIONS INC16 citations84
US7659688B2Feb 9, 2010

Method and system for resolver alignment in electric motor system

GM GLOBAL TECH OPERATIONS INC18 citations84
US7652443B2Jan 26, 2010

Method and system for controlling a power inverter in electric drives

GM GLOBAL TECH OPERATIONS INC10 citations84
US7622877B2Nov 24, 2009

Method and system for controlling permanent magnet AC machines

GM GLOBAL TECH OPERATIONS INC16 citations84
US7595600B2Sep 29, 2009

Method and system for torque control in permanent magnet machines

GM GLOBAL TECH OPERATIONS INC17 citations84
US7471526B2Dec 30, 2008

Method and apparatus to reduce PWM voltage distortion in electric drives

GM GLOBAL TECH OPERATIONS INC11 citations84
US7449859B2Nov 11, 2008

Reduction of subharmonic oscillation at high frequency operation of a power inverter

GM GLOBAL TECH OPERATIONS INC13 citations84
US7286375B1Oct 23, 2007

Dead-time compensation method for electric drives

GM GLOBAL TECH OPERATIONS INC11 citations84
US7218071B1May 15, 2007

Method and apparatus for increasing AC motor torque output at low frequency

GM GLOBAL TECH OPERATIONS INC12 citations84

GEN MOTORS CORP

16 patents
US6894454B2May 17, 2005

Position sensorless control algorithm for AC machine

GEN MOTORS CORP77 citations98
US6166934ADec 26, 2000

High efficiency power system with plural parallel DC/DC converters

GEN MOTORS CORP98 citations98
US6154381ANov 28, 2000

High efficiency power system with plural parallel DC/DC converters

GEN MOTORS CORP117 citations98
US7002318B1Feb 21, 2006

Position sensor fault tolerant control for automotive propulsion system

GEN MOTORS CORP105 citations97
US6972534B1Dec 6, 2005

Delay compensation for stable current regulation when using variable-delay random PWM switching

GEN MOTORS CORP67 citations97
US6924617B2Aug 2, 2005

Position sensorless control algorithm for AC machine

GEN MOTORS CORP59 citations96
US7015667B2Mar 21, 2006

Current regulation for a field weakening motor control system and method

GEN MOTORS CORP25 citations93
US6841969B1Jan 11, 2005

Flux observer in a sensorless controller for permanent magnet motors

GEN MOTORS CORP45 citations93
US6763622B2Jul 20, 2004

Amplitude detection method and apparatus for high frequency impedance tracking sensorless algorithm

GEN MOTORS CORP48 citations93
US6646407B2Nov 11, 2003

Electric motor control having DC-DC converter and method of using same

GEN MOTORS CORP30 citations93
US7391181B2Jun 24, 2008

Loss minimized PWM for voltage source inverters taking into account inverter non-linearity

GEN MOTORS CORP33 citations92
US7211984B2May 1, 2007

Start-up and restart of interior permanent magnet machines

GEN MOTORS CORP40 citations92
US7023168B1Apr 4, 2006

Field weakening motor control system and method

GEN MOTORS CORP52 citations92
US6989641B2Jan 24, 2006

Methods and apparatus for fault-tolerant control of electric machines

GEN MOTORS CORP28 citations92
US6528964B2Mar 4, 2003

Method and system of reducing turn-off loss and noise in a switched reluctance motor drive

GEN MOTORS CORP17 citations84
US6359413B1Mar 19, 2002

Current control system for a switched reluctance motor

GEN MOTORS CORP15 citations84

YEH CHIA-CHOU

3 patents

MODULUS MEDIA SYSTEMS INC

2 patents

SCHULZ STEVEN E

2 patents

FARADAY & FUTURE INC

1 patent

FARADAY&FUTURE INC

1 patent

Showing the top 50 of 122 patents by PatentIndex Score.