David M Nader

US Patent:

6397583, Jun 4, 2002

Filed:

Mar 8, 2001

Appl. No.:

09/802810

Inventors:

Christopher K. Davey - Novi MI
David Robert Nader - Farmington Hills MI
Michael Igor Kluzner - Oak Park MI
Paul Raymond Willette - Warren MI
Robert Joseph Jerger - Dexter MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F01N 300

US Classification:

60277, 60274, 60285

Abstract:

Method and system are provided for monitoring performance of a catalytic converter coupled to an exhaust of an internal combustion engine supplied with fuel from a fuel tank where the fuel can include a first fuel and second fuel in concentrations that vary from one refueling to the next. A ratio indicative of catalytic converter exhaust gas conversion efficiency is determined from signals provided by an exhaust gas sensor disposed upstream and an exhaust gas sensor disposed downstream relative to the catalytic converter, and a ratio threshold value indicative of a malfunctioning catalytic converter is adjusted in dependence on the concentration of one of the first fuel and second fuel in the fuel in the fuel tank.

US Patent:

6401452, Jun 11, 2002

Filed:

Aug 25, 2000

Appl. No.:

09/648055

Inventors:

Christopher Kirk Davey - Novi MI
Robert Joseph Jerger - Dexter MI
David Robert Nader - Farmington Hills MI
Michael Igor Kluzner - Oak Park MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F01N 300

US Classification:

60277, 60274

Abstract:

A catalytic monitoring method for an engine having two engine banks of which each coupled to one of two catalytic converters using first and second exhaust gas oxygen sensors respectively, upstream and downstream of one catalytic converter. Third and fourth exhaust gas oxygen sensors are respectively coupled upstream and downstream of the other catalytic converter. Switch ratios are determined for each of the engine banks based on the switching ratios of each upstream and downstream pair of exhaust gas oxygen sensors. A combination of the switch ratios is used to determine overall catalytic converter system performance.

US Patent:

6532734, Mar 18, 2003

Filed:

Feb 1, 2002

Appl. No.:

10/062384

Inventors:

David Robert Nader - Farmington Hills MI
Michael Igor Kluzner - oak park MI
Michael Daniel Shane - Detroit MI
Michael James Uhrich - Sylvan Lake MI
Robert Joseph Jerger - Dexter MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F01N 300

US Classification:

60277, 60274, 60276, 60285

Abstract:

A method for determining the effectiveness of a catalyst having both first, relatively high oxidizable material provided to remove emissions from the exhaust of an internal combustion engine and a second, relatively low oxidizable material provided to remove emissions from such exhaust. The method includes measure a difference in oxygen content upstream and downstream of the catalyst while the engine is producing the exhaust to determine the effectiveness of the first material and determining the effectiveness of the second material by comparing time delay in a property of the exhaust as such exhaust passes through the catalyst. In one embodiment, the property of the exhaust is the oxygen content in such exhaust. In one embodiment, the effectiveness of the second material is measured after the first material is determined to be ineffective.

US Patent:

6601382, Aug 5, 2003

Filed:

Nov 15, 2001

Appl. No.:

10/003364

Inventors:

David Robert Nader - Farmington Hills MI
Frank Korpics - Belleville MI
Michael Daniel Shane - Detroit MI

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 300

US Classification:

60274, 731181, 374144

Abstract:

A control system and method for controlling an engine ( ) of an automotive vehicle having a catalyst ( ) and controller ( ) is set forth herein. The controller ( ) is configured to determine a first exhaust flow rate and a second exhaust flow rate based on a flow rate of the exhaust gases. The controller is further configured to determine a first temperature (T1) of exhaust gases associated with the first exhaust flow rate based on a steady state temperature and an amount of heat transferred from the exhaust gases associated with the first exhaust flow rate to an exhaust system. The controller is further configured to determine a second temperature of exhaust gases associated with the second exhaust flow rate based on the steady state temperature. The controller is further configured to determine the catalytic converter temperature based on the first temperature and the second temperature.

US Patent:

6644097, Nov 11, 2003

Filed:

Jul 30, 2002

Appl. No.:

10/208532

Inventors:

Christopher Kirk Davey - Novi MI
David Robert Nader - Farmington Hills MI
Jeffrey Scott Hepburn - Dearborn MI
Michael Igor Kluzner - Oak Park MI
Robert Joseph Jerger - Dexter MI

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

G01N 33497

US Classification:

73 2332

Abstract:

A method of determining the type of fuel being burned in an engine by analyzing the signal provided by a exhaust gas oxygen sensor signal is disclosed. The determination is based on the ratio of the value of certain characteristics of the signal during the lean and rich portions of the signal.

US Patent:

6804951, Oct 19, 2004

Filed:

Nov 6, 2002

Appl. No.:

10/065648

Inventors:

David Robert Nader - Farmington Hills MI
Michael Igor Kluzner - Oak Park MI
Robert Eloy Gonzales - Royal Oak MI
Robert Joseph Jerger - Dexter MI

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 300

US Classification:

60277, 60274, 60276

Abstract:

A method for determining the effectiveness of a catalyst to remove emissions from the exhaust of an internal combustion engine. The method includes measuring an upstream time history of a signal produced by an exhaust gas oxygen sensor upstream of the converter and a time history of an exhaust gas oxygen sensor disposed downstream of the converter. The time histories vary between a lean air-fuel ratio signal level and a rich air-fuel ratio signal level. A time delay is determined between the upstream time history and the downstream time history during transitions in such time histories from the lean air-fuel ratio signal level to the rich air-fuel ratio signal level. The determined time delay is compared with a reference time delay to determine the efficiency of the converter. The converter is determined to be ineffective if the converter as been determined to be potentially ineffective and the time delay is determined to be less than the reference time delay.

US Patent:

7481915, Jan 27, 2009

Filed:

Sep 12, 2003

Appl. No.:

10/661757

Inventors:

Christopher K. Davey - Novi MI, US
David Robert Nader - Farmington Hills MI, US
Kenneth John Behr - Farmington Hills MI, US
Michael Igor Kluzner - Oak Park MI, US
Michael James Uhrich - West Bloomfield MI, US
Robert Joseph Jerger - Dexter MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

G01N 27/407
G01K 7/16

US Classification:

205785, 204424, 73 2332, 374142, 374144

Abstract:

A system for determining a temperature of exhaust gases from an engine is provided. The system includes an exhaust gas sensor having an electric heating coil. The sensor communicates with exhaust gases from the engine. The system further includes an electrical circuit for generating a signal indicative of the resistance of the heating coil when the coil is not energized. Finally, the system includes a controller receiving the signal and calculating the temperature of the exhaust gases based on the signal.

US Patent:

8596064, Dec 3, 2013

Filed:

Oct 29, 2010

Appl. No.:

12/915592

Inventors:

Brien Lloyd Fulton - West Bloomfield MI, US
Gopal Krishna Chamarthi - Saline MI, US
Dean Pennala - Howell MI, US
David Curtis Ives - Ann Arbor MI, US
David Robert Nader - Farmington Hills MI, US
Paul Martin Niessen - Plymouth MI, US
Jason Ronald Smith - Dearborn MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F02B 33/44
F01N 3/00
F01N 3/02

US Classification:

606051, 60274, 60280, 60285, 60295, 60311

Abstract:

A method for operating a turbocharged engine is disclosed. In one example, an engine operation is adjusted in response to a turbocharger expansion ratio. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.