P

Inventor

PATEL NITINKUMAR R

US42 patents
⚠️ This page may combine multiple inventors who share the name “PATEL NITINKUMAR R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GEN MOTORS CORP

14 patents
US6894454B2May 17, 2005

Position sensorless control algorithm for AC machine

GEN MOTORS CORP77 citations98
US7002318B1Feb 21, 2006

Position sensor fault tolerant control for automotive propulsion system

GEN MOTORS CORP105 citations97
US7262536B2Aug 28, 2007

Gearless wheel motor drive system

GEN MOTORS CORP62 citations96
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
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
US7088077B2Aug 8, 2006

Position-sensorless control of interior permanent magnet machines

GEN MOTORS CORP16 citations83
US7042186B2May 9, 2006

Decoupling a harmonic signal from a signal path

GEN MOTORS CORP9 citations74
US6979968B2Dec 27, 2005

Method and system for managing processor execution time utilizing variable frequency switching

GEN MOTORS CORP10 citations73
US6760669B2Jul 6, 2004

Method and system of reducing inefficiencies in an internal permanent magnet motor using fuzzy logic

GEN MOTORS CORP6 citations62

GM GLOBAL TECH OPERATIONS INC

14 patents
US7592766B2Sep 22, 2009

Gearless wheel motor drive system

GM GLOBAL TECH OPERATIONS INC47 citations96
US7839108B2Nov 23, 2010

Electric motor stator winding temperature estimation

GM GLOBAL TECH OPERATIONS INC32 citations93
US7642737B2Jan 5, 2010

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

GM GLOBAL TECH OPERATIONS INC21 citations92
US7525269B2Apr 28, 2009

Method and apparatus for sensorless position control of a permanent magnet synchronous motor (PMSM) drive system

GM GLOBAL TECH OPERATIONS INC27 citations92
US7459874B2Dec 2, 2008

System and method for controlling electric drive systems

GM GLOBAL TECH OPERATIONS INC20 citations92
US8378605B2Feb 19, 2013

Method and apparatus for monitoring a system including a sensorless electric motor

GM GLOBAL TECH OPERATIONS INC10 citations84
US7595600B2Sep 29, 2009

Method and system for torque control in permanent magnet machines

GM GLOBAL TECH OPERATIONS INC17 citations84
US7508149B2Mar 24, 2009

Oil pump systems and methods for preventing torque overload in motors of oil pump systems

GM GLOBAL TECH OPERATIONS INC12 citations84
US7449859B2Nov 11, 2008

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

GM GLOBAL TECH OPERATIONS INC13 citations84
US7843162B2Nov 30, 2010

Current regulator and current control method and system for AC motors

GM GLOBAL TECH OPERATIONS INC13 citations83
US7576500B2Aug 18, 2009

Method and system for operating a motor to reduce noise in an electric vehicle

GM GLOBAL TECH OPERATIONS INC10 citations83
US7282886B1Oct 16, 2007

Method and system for controlling permanent magnet motor drive systems

GM GLOBAL TECH OPERATIONS INC14 citations81
US7659684B2Feb 9, 2010

Method and system for operating a motor to avoid selected pulse ratio values

GM GLOBAL TECH OPERATIONS INC3 citations62
US8913352B2Dec 16, 2014

Method and apparatus for detecting a desaturation fault in an inverter module

GM GLOBAL TECH OPERATIONS INC2 citations58

PATEL NITINKUMAR R

5 patents

SON YO CHAN

2 patents

GM GLOBAL TECH OPERATIONS LLC

2 patents

YEH CHIA-CHOU

1 patent

SCHULZ STEVEN E

1 patent

GM GLOBAL TECHNOLOGIES OPERATI

1 patent

SAH JY-JEN F

1 patent

WELCHKO BRIAN A

1 patent