GM

Gregory P. Matthews

General Motors: 33 patents #305 of 18,328Top 2%
Overall (All Time): #107,587 of 4,157,543Top 3%
33
Patents All Time

Issued Patents All Time

Showing 25 most recent of 33 patents

Patent #TitleCo-InventorsDate
10934960 Method and system for estimating mass airflow using a mass airflow sensor Zhijian Wu, Zhiping Liu, Ping Ge, Martino Casetti 2021-03-02
10655550 Intake manifold and cylinder airflow estimation systems and methods Christopher E. Whitney, Layne K. Wiggins, Rafat F. Hattar, Gary Robert Cygan, Jr., Ning Jin 2020-05-19
10480435 EGR and reformate fraction estimation in a dedicated EGR engine Jun-Mo Kang, Martino Casetti 2019-11-19
10337441 Air per cylinder determination systems and methods 2019-07-02
9534550 Air per cylinder determination systems and methods Zhiping Liu, Daniel G. Brennan 2017-01-03
9494092 System and method for predicting parameters associated with airflow through an engine Zhiping Liu, Anthony B. Will 2016-11-15
9458779 Intake runner temperature determination systems and methods Daniel G. Brennan, Layne K. Wiggins 2016-10-04
9376973 Volumetric efficiency determination systems and methods Daniel G. Brennan, Layne K. Wiggins 2016-06-28
9249747 Air mass determination for cylinder activation and deactivation control systems 2016-02-02
9222427 Intake port pressure prediction for cylinder activation and deactivation control systems Zhiping Liu 2015-12-29
9151240 Control system and method for a homogeneous charge compression ignition (HCCI) engine 2015-10-06
8527120 Method and apparatus for controlling a powertrain system including an engine and electro-mechanical transmission Daniel G. Brennan 2013-09-03
7953539 Torque split strategy for a belt alternator starter (BAS) hybrid 2011-05-31
7524255 Tip-in bump reduction methods and systems 2009-04-28
7464676 Air dynamic steady state and transient detection method for cam phaser movement Layne K. Wiggins 2008-12-16
7319929 Method for detecting steady-state and transient air flow conditions for cam-phased engines Ronald A. Davis 2008-01-15
7292931 Model-based inlet air dynamics state characterization Ronald A. Davis, Layne K. Wiggins 2007-11-06
7059998 DOD control methods for manual transmissions Thomas E. Bolander, Alexander J. Roberts, Jeffrey J. Allen 2006-06-13
7004141 Method and apparatus for obtaining a consistent pedal position for a vehicle having an engine with displacement on demand Charles H. Folkerts 2006-02-28
7000589 Determining manifold pressure based on engine torque control Michael Livshiz 2006-02-21
6968824 Determining manifold pressure based on engine torque control Michael Livshiz 2005-11-29
6895941 Method and apparatus for a variable displacement internal combustion engine Charles H. Folkerts 2005-05-24
6874462 Adaptable modification of cylinder deactivation threshold 2005-04-05
6782865 Method and apparatus for control of a variable displacement engine for fuel economy and performance Allen B. Rayl 2004-08-31
6769403 Spark retard control during cylinder transitions in a displacement on demand engine Allen B. Rayl 2004-08-03