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Eric Jon Defenderfer

from Brighton, MI
Age ~62
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Also known as:
Eric J Defenderfer, Jennifer E Defenderfer, Eric Jon R, Eric R, Jennifer E
Phone and address:
6816 Wide Valley Dr, Brighton Twp, MI 48116
(810) 231-3488
Related to:
Brian K Presti, 48Gary Beyer, 83Jamie Beyer, 47Robert Muthig, 83Ralph Beyer, 82Timothy Beyer, 49
Connected to:
Christine M Defendorf, 43Anne M Defeo, 75Carol A Defeo, 69Dante P Defeo, 105Donna M Defeo, 56Erin T Defeo, 54Frederick P Defeo, 43Gabriel N Defeo, 52George D Defeo, 65Jacqueline A Defeo, 70

Eric Defenderfer Phones & Addresses

  • 6816 Wide Valley Dr, Brighton, MI 48116 (810) 231-3488
  • Kingsford, MI
  • Wolverine Lake, MI
  • Wixom, MI
  • 6816 Wide Valley Dr, Brighton, MI 48116 (810) 919-1004

Work

Position: Professional/Technical

Education

Degree: Associate degree or higher

Emails

e***[email protected]

Resumes

Resumes

Eric Defenderfer Photo 1

N And V Powertrain Technology And Fuel Economy Integration Specialist

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Location:
6816 Wide Valley Dr, Brighton, MI 48116
Industry:
Automotive
Work:
General Motors since 2007
N&V PT Technology and Fuel Economy Integration Specialist
General Motors 2003 - 2007
N&V Lead Engineer - Advanced Vehicle Development Center
General Motors 2000 - 2003
Technical Integration Engineer - Powertrain & Chassis
General Motors 1993 - 2000
Sr. Development Engineer - Midsize Truck Noise & Vibration
Education:
University of Michigan 1990 - 1991
MSME, Mechanical Engineering Michigan Technological University 1980 - 1984
BSME, Mechanical Engineering
Skills:
Powertrain
Automotive Engineering
Automotive
Vehicles
Chassis
Nvh
Engineering
Fmea
Finite Element Analysis
Cae
Root Cause Analysis
Six Sigma
Unigraphics
Product Design
Engineering Management
Continuous Improvement
Acoustics
Data Acquisition
Components
Simulations
Automotive Design
Mechanical Engineering
Electric Vehicles
Dfmea
Hev
Mechanics of Materials
Interests:
Cooking
Exercise
Investing
Traveling
Outdoors
Electronics
Home Improvement
Reading
Gourmet Cooking
Music
Sports
Automobiles
Travel
Movies
Home Decoration
Languages:
English
Certifications:
Registered Professional Engineer
Eric Defenderfer Photo 2

Eric Defenderfer

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Publications

Us Patents

Engine Motion Active Control

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US Patent:
20060283416, Dec 21, 2006
Filed:
Oct 4, 2005
Appl. No.:
11/243518
Inventors:
Frederick Hohnstadt - Clarkston MI, US
Steven Tervo - Howell MI, US
Eric Jacobson - Wixom MI, US
Brian Ferrari - Troy MI, US
Eric Defenderfer - Brighton MI, US
Scott Wise - Okemos MI, US
Wolfgang Bors - Rockford MI, US
Borz Fariborzi - Grand Rapid MI, US
International Classification:
F02B 75/06
F02D 17/02
US Classification:
123192100, 12319800F
Abstract:
An engine active motion control system for controlling engine dynamic torque includes an engine that generates a first dynamic torque. A first module selectively initiates generation of a second dynamic torque about an axis of rotation of a crankshaft of the engine in a direction opposite that of the first dynamic torque generated through the crankshaft.

Body Mounted Vehicle Noise Cancellation System

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US Patent:
20190237056, Aug 1, 2019
Filed:
Feb 1, 2018
Appl. No.:
15/886332
Inventors:
- Detroit MI, US
Scott M. Reilly - Southfield MI, US
Eric J. Defenderfer - Brighton MI, US
International Classification:
G10K 11/175
G10K 15/02
G10L 21/0208
Abstract:
A noise cancellation system for a vehicle includes an excitation device mountable to a vehicle body component. The excitation device is operable to produce a low frequency response of the vehicle body component.

Method And Apparatus For Determining Optimum Skip Fire Firing Profile

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US Patent:
20190170074, Jun 6, 2019
Filed:
Feb 7, 2019
Appl. No.:
16/270349
Inventors:
- San Jose CA, US
- Detroit MI, US
Steven E. CARLSON - Oakland CA, US
Vijay SRINIVASAN - Farmington Hills MI, US
Eric J. DEFENDERFER - Brighton MI, US
Nitish J. WAGH - Northville MI, US
Randall S. BEIKMANN - Brighton MI, US
Jinbiao LI - Rochester Hills MI, US
Xin YUAN - Palo Alto CA, US
Li-Chun CHIEN - Milpitas CA, US
International Classification:
F02D 41/00
F02D 41/24
F02D 17/02
Abstract:
In one aspect, a skip fire engine controller is described. The skip fire engine controller includes a skip fire module arranged to determine an operational firing fraction and associated cylinder load for delivering a desired engine output. The skip fire engine controller also includes a firing controller arranged to direct firings in a skip fire manner that delivers the selected operational firing fraction. Various methods, modules, lookup tables and arrangements related to the selection of a suitable operational firing fraction are also described.

Driveshaft With Two-Stage Stiffness

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US Patent:
20160097420, Apr 7, 2016
Filed:
Oct 1, 2014
Appl. No.:
14/503531
Inventors:
- Detroit MI, US
Mark Gehringer - Milford MI, US
Stephanie A. Ernster - Novi MI, US
Eric J. Defenderfer - Brighton MI, US
Stephen H. Miller - South Lyon MI, US
International Classification:
F16C 1/02
Abstract:
A two-stage stiffness driveshaft includes a hollow cylinder defined by a longitudinal axis, a first end, a distal second end, and a hollow cylinder stiffness. The driveshaft also includes an inner shaft extending through the hollow cylinder along the longitudinal axis and defined by a first end, a distal second end, and an inner shaft stiffness. The first end of the inner shaft is engaged with the first end of the hollow cylinder via a rotational clearance fit. The second end of the inner shaft is rotationally fixed to the second end of the hollow cylinder such that the first end of the inner shaft can twist to a predetermined angle with respect to the second end of the inner shaft. The inner shaft stiffness defines a first-stage stiffness of the driveshaft, and the inner shaft stiffness and the hollow cylinder stiffness together define a second-stage stiffness of the driveshaft.

Method And Apparatus For Determining Optimum Skip Fire Firing Profile

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US Patent:
20150260117, Sep 17, 2015
Filed:
Mar 4, 2015
Appl. No.:
14/638908
Inventors:
- San Jose CA, US
- Detroit MI, US
Steven E. CARLSON - Oakland CA, US
Vijay SRINIVASAN - Farmington Hills MI, US
Eric J. DEFENDERFER - Brighton MI, US
Nitish J. WAGH - Northville MI, US
Randall S. BEIKMANN - Brighton MI, US
Jinbiao LI - Rochester Hills MI, US
Xin YUAN - Palo Alto CA, US
Li-Chun CHIEN - Milpitas CA, US
International Classification:
F02D 41/00
F02D 41/04
F02D 17/02
Abstract:
In one aspect, a skip fire engine controller is described. The skip fire engine controller includes a skip fire module arranged to determine an operational firing fraction and associated cylinder load for delivering a desired engine output. The skip fire engine controller also includes a firing controller arranged to direct firings in a skip fire manner that delivers the selected operational firing fraction. Various methods, modules, lookup tables and arrangements related to the selection of a suitable operational firing fraction are also described.
Control profile
Eric Jon Defenderfer from Brighton, MI, age ~62 Get Report