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Bryan M. Ludwig
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West Bloomfield, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Online IGBT junction temperature estimation without the use of a de...
Patent number
10,337,930
Issue date
Jul 2, 2019
GM Global Technology Operations LLC
S. M. Nayeem Hasan
G01 - MEASURING TESTING
Information
Patent Grant
Method and system for fault protection
Patent number
9,142,955
Issue date
Sep 22, 2015
GM Global Technology Operations LLS
Kon-King M. Wang
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Passive high-voltage DC bus discharge circuit for a vehicle
Patent number
9,018,865
Issue date
Apr 28, 2015
GM Global Technology Operations LLC
John W. Meyer
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method and apparatus to operate a powertrain system including an el...
Patent number
8,606,447
Issue date
Dec 10, 2013
GM Global Technology Operations LLC
Chandra S. Namuduri
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Control of an alternator-starter for a hybrid electric vehicle havi...
Patent number
8,314,578
Issue date
Nov 20, 2012
GM Global Technology Operations LLC
Chandra S. Namuduri
B60 - VEHICLES IN GENERAL
Information
Patent Grant
System and method for detecting loss of isolation while an AC motor...
Patent number
8,164,298
Issue date
Apr 24, 2012
GM Global Technology Operations LLC
Mohammad N. Anwar
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Operating and controlling insulated gate bipolar transistors in hig...
Patent number
7,983,013
Issue date
Jul 19, 2011
Continantal Automotive Systems US, Inc.
Fengtai Huang
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
ONLINE IGBT JUNCTION TEMPERATURE ESTIMATION WITHOUT THE USE OF A DE...
Publication number
20160334280
Publication date
Nov 17, 2016
GM GLOBAL TECHNOLOGY OPERATIONS LLC
S.M. Nayeem Hasan
G01 - MEASURING TESTING
Information
Patent Application
METHOD AND SYSTEM FOR FAULT PROTECTION
Publication number
20140118868
Publication date
May 1, 2014
GM GLOBAL TECHNOLOGY OPERATIONS LLC
KON-KING M. WANG
B60 - VEHICLES IN GENERAL
Information
Patent Application
PASSIVE HIGH-VOLTAGE DC BUS DISCHARGE CIRCUIT FOR A VEHICLE
Publication number
20130285581
Publication date
Oct 31, 2013
GM GLOBAL TECHNOLOGY OPERATIONS LLC
John W. Meyer
B60 - VEHICLES IN GENERAL
Information
Patent Application
METHOD AND APPARATUS TO OPERATE A POWERTRAIN SYSTEM INCLUDING AN EL...
Publication number
20120303189
Publication date
Nov 29, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Chandra S. Namuduri
B60 - VEHICLES IN GENERAL
Information
Patent Application
SYSTEM AND METHOD FOR DETECTING LOSS OF ISOLATION WHILE AN AC MOTOR...
Publication number
20100244760
Publication date
Sep 30, 2010
GM Global Technology Operations, Inc.
Mohammad N. Anwar
G01 - MEASURING TESTING
Information
Patent Application
CONTROL OF AN ALTERNATOR-STARTER FOR A HYBRID ELECTRIC VEHICLE HAVI...
Publication number
20100225258
Publication date
Sep 9, 2010
GM Global Technology Operations, Inc.
Chandra S. Namuduri
B60 - VEHICLES IN GENERAL
Information
Patent Application
OPERATING AND CONTROLLING INSULATED GATE BIPOLAR TRANSISTORS IN HIG...
Publication number
20090067109
Publication date
Mar 12, 2009
Siemens VDO Automotive Corporation
Fengtai Huang
H03 - BASIC ELECTRONIC CIRCUITRY