P

Inventor

HITI SILVA

US125 patents
⚠️ This page may combine multiple inventors who share the name “HITI SILVA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GM GLOBAL TECH OPERATIONS INC

29 patents
US7768220B2Aug 3, 2010

Harmonic torque ripple reduction at low motor speeds

GM GLOBAL TECH OPERATIONS INC55 citations98
US7615951B2Nov 10, 2009

Method and system for limiting the operating temperature of an electric motor

GM GLOBAL TECH OPERATIONS INC70 citations98
US7279862B1Oct 9, 2007

Fault handling of inverter driven PM motor drives

GM GLOBAL TECH OPERATIONS INC62 citations97
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
US7616466B2Nov 10, 2009

Three phase inverter with improved loss distribution

GM GLOBAL TECH OPERATIONS INC52 citations93
US7990098B2Aug 2, 2011

Series-coupled two-motor drive using double-ended inverter system

GM GLOBAL TECH OPERATIONS INC32 citations92
US7956563B2Jun 7, 2011

System for using a multi-phase motor with a double-ended inverter system

GM GLOBAL TECH OPERATIONS INC27 citations92
US7923953B2Apr 12, 2011

Linearity for field weakening in an interior permanent magnet machine

GM GLOBAL TECH OPERATIONS INC16 citations92
US7759886B2Jul 20, 2010

Linearity for field weakening in an interior permanent magnet machine

GM GLOBAL TECH OPERATIONS INC23 citations92
US7755313B2Jul 13, 2010

Power inverter module thermal management

GM GLOBAL TECH OPERATIONS INC20 citations92
US7652858B2Jan 26, 2010

Protection for permanent magnet motor control circuits

GM GLOBAL TECH OPERATIONS INC33 citations92
US7642737B2Jan 5, 2010

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

GM GLOBAL TECH OPERATIONS INC21 citations92
US7599204B2Oct 6, 2009

Control scheme providing a freewheeling period in a cyclo-converter and a high frequency inverter

GM GLOBAL TECH OPERATIONS INC23 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
US7944161B2May 17, 2011

DC bus discharge in an electric motor system

GM GLOBAL TECH OPERATIONS INC10 citations84
US7880425B2Feb 1, 2011

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

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
US7800331B2Sep 21, 2010

Method and system for operating an electric motor coupled to multiple power supplies

GM GLOBAL TECH OPERATIONS INC17 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
US7719138B2May 18, 2010

Two-source series inverter

GM GLOBAL TECH OPERATIONS INC8 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
US7675192B2Mar 9, 2010

Active DC bus filter for fuel cell applications

GM GLOBAL TECH OPERATIONS INC9 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
US7592765B2Sep 22, 2009

Method and system for controlling synchronous motor drive systems

GM GLOBAL TECH OPERATIONS INC18 citations84

GEN MOTORS CORP

14 patents
US7262536B2Aug 28, 2007

Gearless wheel motor drive system

GEN MOTORS CORP62 citations96
US6288515B1Sep 11, 2001

System and method for controlling a surface-mounted permanent magnet synchronous machine drive over a wide speed range using a reference voltage

GEN MOTORS CORP86 citations96
US6222335B1Apr 24, 2001

Method of controlling a voltage-fed induction machine

GEN MOTORS CORP59 citations96
US6163128ADec 19, 2000

Method and drive system for controlling a permanent magnet synchronous machine

GEN MOTORS CORP67 citations95
US6950321B2Sep 27, 2005

Active damping control for L-C output filters in three phase four-leg inverters

GEN MOTORS CORP36 citations93
US6924993B2Aug 2, 2005

Method and apparatus for controlling a stand-alone 4-leg voltage source inverter

GEN MOTORS CORP36 citations93
US6504329B2Jan 7, 2003

Apparatus and method for controlling permanent magnet electric machines

GEN MOTORS CORP22 citations93
US7391181B2Jun 24, 2008

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

GEN MOTORS CORP33 citations92
US7061134B2Jun 13, 2006

Method and system for improved thermal management of a voltage source inverter operating at low output frequency utilizing a zero vector modulation technique

GEN MOTORS CORP20 citations92
US6864646B2Mar 8, 2005

Multiple inverter system with low power bus ripples and method therefor

GEN MOTORS CORP54 citations92
US6617820B2Sep 9, 2003

Auxiliary power conversion by phase-controlled rectification

GEN MOTORS CORP33 citations92
US6262896B1Jul 17, 2001

Auxiliary power conversion for an electric vehicle using high frequency injection into a PWM inverter

GEN MOTORS CORP53 citations92
US6870348B2Mar 22, 2005

Rotor resistance adaptation for indirect field oriented control of induction machine

GEN MOTORS CORP24 citations89
US6362585B1Mar 26, 2002

Controlling electric vehicle DC bus voltage ripple under step mode of operation

GEN MOTORS CORP27 citations89

FARADAY & FUTURE INC

1 patent

RIVIAN IP HOLDINGS LLC

1 patent

FARADAY&FUTURE INC

1 patent

WELCHKO BRIAN A

1 patent

PERISIC MILUN

1 patent

GALLEGOS-LOPEZ GABRIEL

1 patent

SCHULZ STEVEN E

1 patent

Showing the top 50 of 125 patents by PatentIndex Score.