Inventor · disambiguated record
Gregory P. Matthews
Also filed as: MATTHEWS GREGORY P · MATTHEWS GREGORY PAUL
33 granted patents·2 pending applications·782 citations·filing 1992–2024
98Inventor score
Files withGEN MOTORS CORP16GM GLOBAL TECH OPERATIONS INC8GM GLOBAL TECH OPERATIONS LLC7MATTHEWS GREGORY P2RAYTHEON CO1
Top patents by PatentIndex Score
35 records- 0198US6615804B2Method and apparatus for deactivating and reactivating cylinders for an engine with displacement on demandGEN MOTORS CORP·Filed 2001·Granted Sep 9, 2003·70 cites·15 claims
- 0297US7464676B2Air dynamic steady state and transient detection method for cam phaser movementGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Dec 16, 2008·29 cites·19 claims
- 0397US5273019AApparatus with dynamic prediction of EGR in the intake manifoldGEN MOTORS CORP·Filed 1992·Granted Dec 28, 1993·99 cites·26 claims
- 0496US9222427B2Intake port pressure prediction for cylinder activation and deactivation control systemsGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Dec 29, 2015·21 cites·20 claims
- 0596US5465617AInternal combustion engine controlGEN MOTORS CORP·Filed 1994·Granted Nov 14, 1995·91 cites·8 claims
- 0695US7319929B1Method for detecting steady-state and transient air flow conditions for cam-phased enginesGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jan 15, 2008·36 cites·16 claims
- 0795US7292931B2Model-based inlet air dynamics state characterizationGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Nov 6, 2007·35 cites·20 claims
- 0894US6760656B2Airflow estimation for engines with displacement on demandGEN MOTORS CORP·Filed 2002·Granted Jul 6, 2004·54 cites·36 claims
- 0993US6874462B2Adaptable modification of cylinder deactivation thresholdGEN MOTORS CORP·Filed 2003·Granted Apr 5, 2005·47 cites·7 claims
- 1092US5423208AAir dynamics state characterizationGEN MOTORS CORP·Filed 1993·Granted Jun 13, 1995·62 cites·16 claims
- 1186US6782865B2Method and apparatus for control of a variable displacement engine for fuel economy and performanceGEN MOTORS CORP·Filed 2002·Granted Aug 31, 2004·31 cites·11 claims
- 1285US6736108B2Fuel and spark compensation for reactivating cylinders in a variable displacement engineGEN MOTORS CORP·Filed 2002·Granted May 18, 2004·33 cites·12 claims
- 1383US10934960B2Method and system for estimating mass airflow using a mass airflow sensorGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Mar 2, 2021·2 cites·9 claims
- 1483US5596972AIntegrated fueling controlGEN MOTORS CORP·Filed 1995·Granted Jan 28, 1997·46 cites·8 claims
- 1580US9376973B2Volumetric efficiency determination systems and methodsGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Jun 28, 2016·4 cites·20 claims
- 1678US9458779B2Intake runner temperature determination systems and methodsGM GLOBAL TECH OPERATIONS LLC·Filed 2013·Granted Oct 4, 2016·4 cites·16 claims
- 1777US9534550B2Air per cylinder determination systems and methodsGM GLOBAL TECH OPERATIONS LLC·Filed 2013·Granted Jan 3, 2017·3 cites·12 claims
- 1877US7000589B2Determining manifold pressure based on engine torque controlGEN MOTORS CORP·Filed 2004·Granted Feb 21, 2006·19 cites·25 claims
- 1976US9249747B2Air mass determination for cylinder activation and deactivation control systemsGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Feb 2, 2016·3 cites·20 claims
- 2072US7524255B2Tip-in bump reduction methods and systemsGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Apr 28, 2009·7 cites·18 claims
- 2170US8527120B2Method and apparatus for controlling a powertrain system including an engine and electro-mechanical transmissionMATTHEWS GREGORY P·Filed 2009·Granted Sep 3, 2013·9 cites·19 claims
- 2269US10337441B2Air per cylinder determination systems and methodsGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Jul 2, 2019·1 cites·14 claims
- 2367US6769403B2Spark retard control during cylinder transitions in a displacement on demand engineGEN MOTORS CORP·Filed 2002·Granted Aug 3, 2004·20 cites·18 claims
- 2463US6968824B1Determining manifold pressure based on engine torque controlGEN MOTORS CORP·Filed 2004·Granted Nov 29, 2005·11 cites·32 claims
- 2562US7059998B2DOD control methods for manual transmissionsGEN MOTORS CORP·Filed 2004·Granted Jun 13, 2006·11 cites·21 claims
- 2662US6895941B2Method and apparatus for a variable displacement internal combustion engineGEN MOTORS CORP·Filed 2003·Granted May 24, 2005·11 cites·10 claims
- 2761US9494092B2System and method for predicting parameters associated with airflow through an engineGM GLOBAL TECH OPERATIONS LLC·Filed 2014·Granted Nov 15, 2016·1 cites·20 claims
- 2860US2025389928A1Fine focus adjustment for lens using pressureRAYTHEON CO·Filed 2024·Application pending·0 cites
- 2959US7004141B2Method and apparatus for obtaining a consistent pedal position for a vehicle having an engine with displacement on demandGEN MOTORS CORP·Filed 2001·Granted Feb 28, 2006·10 cites·14 claims
- 3058US7953539B2Torque split strategy for a belt alternator starter (BAS) hybridGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted May 31, 2011·3 cites·22 claims
- 3155US10480435B2EGR and reformate fraction estimation in a dedicated EGR engineGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Nov 19, 2019·0 cites·19 claims
- 3252US6585621B2Method and apparatus for providing a consistent transmission load variableGEN MOTORS CORP·Filed 2001·Granted Jul 1, 2003·9 cites·18 claims
- 3347US9151240B2Control system and method for a homogeneous charge compression ignition (HCCI) engineMATTHEWS GREGORY P·Filed 2011·Granted Oct 6, 2015·0 cites·22 claims
- 3438US10655550B2Intake manifold and cylinder airflow estimation systems and methodsGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted May 19, 2020·0 cites·12 claims
- 3531US2004034460A1Powertrain control systemFiled 2002·Application pending·0 cites
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