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Sai S. V. Rajagopalan
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Sterling Heights, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Hybrid vehicle propulsion systems and methods
Patent number
10,207,699
Issue date
Feb 19, 2019
Chandra S. Namuduri
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Vehicle power management utilizing operator schedule data
Patent number
9,739,624
Issue date
Aug 22, 2017
GM Global Technology Operations LLC
Sai S. Rajagopalan
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Engine torque control with combustion phasing
Patent number
9,689,321
Issue date
Jun 27, 2017
GM Global Technology Operations LLC
Jun-Mo Kang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Engine torque control with fuel mass
Patent number
9,689,339
Issue date
Jun 27, 2017
GM Global Technology Operations LLC
Jun-Mo Kang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method and apparatus for controlling operation of an internal combu...
Patent number
9,664,135
Issue date
May 30, 2017
GM Global Technology Operations LLC
Jun-Mo Kang
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Prediction of intake manifold pressure in an engine system
Patent number
9,644,543
Issue date
May 9, 2017
GM Global Technology Operations LLC
Yiran Hu
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method and system for controlling a powertrain
Patent number
9,617,930
Issue date
Apr 11, 2017
GM Global Technology Operations LLC
Jun-Mo Kang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Transition from homogeneous charge compression ignition combustion...
Patent number
9,470,154
Issue date
Oct 18, 2016
GM Global Technology Operations LLC
Sai S. V. Rajagopalan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Method and apparatus for controlling operation of an internal combu...
Patent number
9,394,838
Issue date
Jul 19, 2016
GM Global Technology Operations LLC
Orgun A. Guralp
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Offset and slow response diagnostic methods for NOx sensors in vehi...
Patent number
8,930,121
Issue date
Jan 6, 2015
GM Global Technology Operations LLC
Sai S. V. Rajagopalan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Spark ignition to homogenous charge compression ignition transition...
Patent number
8,776,737
Issue date
Jul 15, 2014
GM Global Technology Operations LLC
Ethan E. Bayer
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Gain/amplitude diagnostics of NOx sensors
Patent number
8,694,197
Issue date
Apr 8, 2014
GM Global Technology Operations LLC
Sai S. V. Rajagopalan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Universal tracking air-fuel regulator for internal combustion engines
Patent number
8,571,785
Issue date
Oct 29, 2013
GM Global Technology Operations LLC
Sai S. V. Rajagopalan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Compensating for random catalyst behavior
Patent number
8,346,458
Issue date
Jan 1, 2013
GM Global Technology Operations LLC
Shawn W. Midlam-Mohler
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Control systems and methods using geometry based exhaust mixing model
Patent number
8,224,557
Issue date
Jul 17, 2012
GM Global Technology Operations LLC
Sai S. V. Rajagopalan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Air fuel ratio control system for internal combustion engines
Patent number
7,937,209
Issue date
May 3, 2011
GM Global Technology Operations LLC
Kenneth P. Dudek
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Off-line calibration of universal tracking air fuel ratio regulators
Patent number
7,925,421
Issue date
Apr 12, 2011
GM Global Technology Operations LLC
Sharon Liu
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
HYBRID VEHICLE PROPULSION SYSTEMS AND METHODS
Publication number
20180105158
Publication date
Apr 19, 2018
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Chandra S. Namuduri
B60 - VEHICLES IN GENERAL
Information
Patent Application
VEHICLE POWER MANAGEMENT UTILIZING OPERATOR SCHEDULE DATA
Publication number
20170176195
Publication date
Jun 22, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Sai S. Rajagopalan
B60 - VEHICLES IN GENERAL
Information
Patent Application
ENGINE TORQUE CONTROL WITH FUEL MASS
Publication number
20160363085
Publication date
Dec 15, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Jun-Mo Kang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ENGINE TORQUE CONTROL WITH COMBUSTION PHASING
Publication number
20160363059
Publication date
Dec 15, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Jun-Mo Kang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
System And Method For Vehicle Energy Estimation, Adaptive Control A...
Publication number
20160245662
Publication date
Aug 25, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Sai S.V. Rajagopalan
G01 - MEASURING TESTING
Information
Patent Application
PREDICTION OF INTAKE MANIFOLD PRESSURE IN AN ENGINE SYSTEM
Publication number
20160237941
Publication date
Aug 18, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Yiran Hu
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
METHOD AND APPARATUS FOR CONTROLLING OPERATION OF AN INTERNAL COMBU...
Publication number
20150361916
Publication date
Dec 17, 2015
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Jun-Mo Kang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
METHOD AND SYSTEM FOR CONTROLLING A POWERTRAIN
Publication number
20150300279
Publication date
Oct 22, 2015
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Jun-Mo Kang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
TRANSITION FROM HOMOGENEOUS CHARGE COMPRESSION IGNITION COMBUSTION...
Publication number
20140352655
Publication date
Dec 4, 2014
Sai S.V. Rajagopalan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
SPARK IGNITION TO HOMOGENOUS CHARGE COMPRESSION IGINITION TRANSITIO...
Publication number
20130174805
Publication date
Jul 11, 2013
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Ethan E. Bayer
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
GAIN/AMPLITUDE DIAGNOSTICS OF NOx SENSORS
Publication number
20120303206
Publication date
Nov 29, 2012
GM GLOBAL TECHNOLOGY OPERATION LLC
Sai S.V. Rajagopalan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
OFFSET AND SLOW RESPONSE DIAGNOSTIC METHODS FOR NOx SENSORS IN VEHI...
Publication number
20120255277
Publication date
Oct 11, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Sai S.V. Rajagopalan
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
COMPENSATING FOR RANDOM CATALYST BEHAVIOR
Publication number
20110082635
Publication date
Apr 7, 2011
GM Global Technology Operations, Inc.
Shawn W. Midlam-Mohler
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CONTROL SYSTEMS AND METHODS USING GEOMETRY BASED EXHAUST MIXING MODEL
Publication number
20110073085
Publication date
Mar 31, 2011
GM Global Technology Operations, Inc.
Sai S.V. Rajagopalan
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
UNIVERSAL TRACKING AIR-FUEL REGULATOR FOR INTERNAL COMBUSTION ENGINES
Publication number
20090266052
Publication date
Oct 29, 2009
GM Global Technology Operations, Inc.
Sai S.V. Rajagopalan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
OFF-LINE CALIBRATION OF UNIVERSAL TRACKING AIR FUEL RATIO REGULATORS
Publication number
20090271093
Publication date
Oct 29, 2009
GM Global Technology Operations, Inc.
Sharon Liu
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
AIR FUEL RATIO CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINES
Publication number
20090048766
Publication date
Feb 19, 2009
GM Global Technology Operations, Inc.
KENNETH P. DUDEK
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS