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Vijay A. Ramappan
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Novi, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Engine emission control systems for deceleration fuel cutoff events...
Patent number
11,913,401
Issue date
Feb 27, 2024
GM Global Technology Operations LLC
Chengke Liu
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Vehicle systems and methods for aftertreatment preheating
Patent number
11,885,250
Issue date
Jan 30, 2024
GM Global Technology Operations LLC
Vijay A. Ramappan
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Control of engine enthalpy for catalytic converter light-off
Patent number
11,885,253
Issue date
Jan 30, 2024
GM Global Technology Operations LLC
Andrew A. Raftopoulos
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Secondary throttle control systems and methods
Patent number
11,313,291
Issue date
Apr 26, 2022
GM Global Technology Operations LLC
Andrew A. Raftopoulos
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Cylinder imbalance correction system and method
Patent number
11,168,627
Issue date
Nov 9, 2021
GM Global Technology Operations LLC
Michael A. Smith
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Gasoline particulate filter regeneration systems and methods
Patent number
11,118,491
Issue date
Sep 14, 2021
GM Global Technology Operations LLC
William D. Gough
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
System and method for controlling amount of sulfur on three-way cat...
Patent number
11,098,666
Issue date
Aug 24, 2021
GM Global Technology Operations LLC
Michael A. Smith
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Generalized cold start emissions reduction strategy
Patent number
10,808,594
Issue date
Oct 20, 2020
GM Global Technology Operations LLC
Daniel S. Dimoski
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
System and method for adjusting the rate of coolant flow through an...
Patent number
10,669,922
Issue date
Jun 2, 2020
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Electric pump operating strategy
Patent number
10,605,151
Issue date
Mar 31, 2020
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Coolant control systems and methods to prevent coolant boiling
Patent number
10,480,391
Issue date
Nov 19, 2019
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Method for cold start emissions diagnostic
Patent number
10,352,223
Issue date
Jul 16, 2019
GM Global Technology Operations LLC
Gregory J. York
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Coolant temperature correction systems and methods
Patent number
10,006,335
Issue date
Jun 26, 2018
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Engine off cooling strategy
Patent number
9,964,022
Issue date
May 8, 2018
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Coolant pump control systems and methods for backpressure compensation
Patent number
9,957,875
Issue date
May 1, 2018
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Exhaust gas recirculation control systems and methods
Patent number
9,932,917
Issue date
Apr 3, 2018
GM Global Technology Operations LLC
Vijay Ramappan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Flexible engine metal warming system and method for an internal com...
Patent number
9,869,223
Issue date
Jan 16, 2018
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Systems for regeneration of a gasoline particulate filter
Patent number
9,863,337
Issue date
Jan 9, 2018
GM Global Technology Operations LLC
Vijay Ramappan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
System and method for controlling inlet coolant temperature of an i...
Patent number
9,840,962
Issue date
Dec 12, 2017
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
System and method for engine block cooling
Patent number
9,719,408
Issue date
Aug 1, 2017
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Engine out coolant temperature correction
Patent number
9,719,406
Issue date
Aug 1, 2017
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Electric coolant pump diagnostic systems and methods
Patent number
9,599,011
Issue date
Mar 21, 2017
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
System and method for diagnosing a fault in a partitioned coolant v...
Patent number
9,540,987
Issue date
Jan 10, 2017
GM Global Technology Operations LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
External EGR rate feedback
Patent number
9,506,420
Issue date
Nov 29, 2016
GM Global Technology Operations LLC
Vijay Ramappan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Exhaust gas recirculation control systems and methods
Patent number
9,341,133
Issue date
May 17, 2016
GM Global Technology Operations LLC
Sanjeev M. Naik
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Selective exhaust gas recirculation diagnostic systems and methods
Patent number
9,157,390
Issue date
Oct 13, 2015
GM Global Technology Operations LLC
B. Jerry Song
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Systems and methods for controlling engine combustion stability
Patent number
8,915,236
Issue date
Dec 23, 2014
GM Global Technology Operations LLC
Vijay Ramappan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
System and method for controlling intake valve timing in homogeneou...
Patent number
8,868,319
Issue date
Oct 21, 2014
GM Global Technolgy Operations LLC
Darrell W. Burleigh
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
HCCI mode switching control system and method
Patent number
8,776,762
Issue date
Jul 15, 2014
GM Global Technology Operations LLC
Allen B. Rayl
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
System and method for torque control in a homogeneous charge compre...
Patent number
8,755,987
Issue date
Jun 17, 2014
GM Global Technology Operations LLC
Vijay Ramappan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Patents Applications
last 30 patents
Information
Patent Application
Secondary Throttle Control Systems and Methods
Publication number
20220034269
Publication date
Feb 3, 2022
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Andrew A. RAFTOPOULOS
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CYLINDER IMBALANCE CORRECTION SYSTEM AND METHOD
Publication number
20210148293
Publication date
May 20, 2021
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Michael A. Smith
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
GENERALIZED COLD START EMISSIONS REDUCTION STRATEGY
Publication number
20190323407
Publication date
Oct 24, 2019
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Daniel S. Dimoski
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
METHOD FOR COLD START EMISSIONS DIAGNOSTIC
Publication number
20190072019
Publication date
Mar 7, 2019
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Gregory J. York
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
ELECTRIC PUMP OPERATING STRATEGY
Publication number
20170356327
Publication date
Dec 14, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Eugene V. Gonze
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
SYSTEM AND METHOD FOR ADJUSTING THE RATE OF COOLANT FLOW THROUGH AN...
Publication number
20170159546
Publication date
Jun 8, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Eugene V. GONZE
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
COOLANT TEMPERATURE CORRECTION SYSTEMS AND METHODS
Publication number
20170122182
Publication date
May 4, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Eugene V. GONZE
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
System And Method For Controlling Inlet Coolant Temperature Of An I...
Publication number
20160376978
Publication date
Dec 29, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Eugene V. GONZE
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Engine Off Cooling Strategy
Publication number
20160281584
Publication date
Sep 29, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Eugene V. GONZE
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Engine Out Coolant Temperature Correction
Publication number
20160201547
Publication date
Jul 14, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Eugene V. GONZE
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
SYSTEMS FOR REGENERATION OF A GASOLINE PARTICULATE FILTER
Publication number
20160123200
Publication date
May 5, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
VIJAY RAMAPPAN
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
SYSTEM AND METHOD FOR ENGINE BLOCK COOLING
Publication number
20160053665
Publication date
Feb 25, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
EUGENE V. GONZE
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
FLEXIBLE ENGINE METAL WARMING SYSTEM AND METHOD FOR AN INTERNAL COM...
Publication number
20160053646
Publication date
Feb 25, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
EUGENE V. GONZE
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
COOLANT PUMP CONTROL SYSTEMS AND METHODS FOR BACKPRESSURE COMPENSATION
Publication number
20160047291
Publication date
Feb 18, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
EUGENE V. GONZE
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
COOLANT CONTROL SYSTEMS AND METHODS TO PREVENT COOLANT BOILING
Publication number
20160047293
Publication date
Feb 18, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
EUGENE V. GONZE
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN A PARTITIONED COOLANT V...
Publication number
20160047292
Publication date
Feb 18, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
EUGENE V. GONZE
G01 - MEASURING TESTING
Information
Patent Application
ELECTRIC COOLANT PUMP DIAGNOSTIC SYSTEMS AND METHODS
Publication number
20160047374
Publication date
Feb 18, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
EUGENE V. GONZE
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
EXHAUST GAS RECIRCULATION CONTROL SYSTEMS AND METHODS
Publication number
20140257673
Publication date
Sep 11, 2014
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Sanjeev M. Naik
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
EXTERNAL EGR RATE FEEDBACK
Publication number
20140222318
Publication date
Aug 7, 2014
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Vijay Ramappan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
EXHAUST GAS RECIRCULATION CONTROL SYSTEMS AND METHODS
Publication number
20130253798
Publication date
Sep 26, 2013
GM Globel Technology Operations LLC
Vijay Ramappan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
SYSTEMS AND METHODS FOR ADJUSTING AN ESTIMATED FLOW RATE OF EXHAUST...
Publication number
20130226435
Publication date
Aug 29, 2013
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Jon C. Wasberg
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
SELECTIVE EXHAUST GAS RECIRCULATION DIAGNOSTIC SYSTEMS AND METHODS
Publication number
20130073179
Publication date
Mar 21, 2013
GM GLOBAL TECHNOLOGY OPERATIONS LLC
B. Jerry Song
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ELECTRIC CAM PHASER CONTROL SYSTEMS AND METHODS
Publication number
20120318223
Publication date
Dec 20, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Etsuko Muraji Stewart
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
SYSTEM AND METHOD FOR CONTROLLING INTAKE VALVE TIMING IN HOMOGENEOU...
Publication number
20120296556
Publication date
Nov 22, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Darrell W. Burleigh
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
SYSTEM AND METHOD FOR TORQUE CONTROL IN A HOMOGENEOUS CHARGE COMPRE...
Publication number
20120296557
Publication date
Nov 22, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Vijay Ramappan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
SYSTEMS AND METHODS FOR CONTROLLING ENGINE COMBUSTION STABILITY
Publication number
20120247439
Publication date
Oct 4, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Vijay Ramappan
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
SYSTEM AND METHOD FOR IMPROVED TRANSITIONS BETWEEN ENGINE COMBUSTIO...
Publication number
20110295487
Publication date
Dec 1, 2011
GM Global Technology Operations, Inc.
Vijay Ramappan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
SYSTEM AND METHOD FOR CONTROLLING EXHAUST GAS RECIRCULATION SYSTEMS
Publication number
20110290224
Publication date
Dec 1, 2011
GM Global Technology Operations, Inc.
Vijay Ramappan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
CONTROL SYSTEM AND METHOD FOR LOW QUANTITY FUEL INJECTION
Publication number
20110295488
Publication date
Dec 1, 2011
GM Global Technology Operations, Inc.
Vijay Ramappan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
CONTROL SYSTEMS FOR A VARIABLE CAPACITY ENGINE OIL PUMP
Publication number
20110209682
Publication date
Sep 1, 2011
GM Global Technology Operations, Inc.
Kevin J. Storch
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES