Christopher T Mazur

US Patent:

6408616, Jun 25, 2002

Filed:

Jul 20, 2000

Appl. No.:

09/621303

Inventors:

Christopher John Mazur - Canton MI
Paul Matthew Laing - Canton MI
Robert Henry Hammerle - Franklin MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F01N 300

US Classification:

60277, 60274, 60286

Abstract:

A method of monitoring catalyst activity that includes injecting hydrocarbon into the engine exhaust flow sufficient to maintain a constant concentration of reductant into the catalyst under variable engine exhaust flow conditions thereby permitting an accurate calculation of the actual HC conversion by the catalyst, and a determination of whether the catalyst is currently meeting emission regulations.

US Patent:

6502386, Jan 7, 2003

Filed:

Aug 2, 2000

Appl. No.:

09/631135

Inventors:

Christopher John Mazur - Canton MI
Karen M Adams - Ann Arbor MI
Paul Matthew Laing - Canton MI
Robert Henry Hammerle - Franklin MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F01N 300

US Classification:

60277, 60274, 60276

Abstract:

A carbon monoxide sensor placed downstream of the catalytic converter and a temperature sensor placed upstream of the converter in a diesel engine provide information to build a real time CO conversion efficiency versus catalyst temperature curve to determine whether a catalyst has deteriorated beyond a predetermined point with respect to On-Board Diagnostic (OBD) requirements. Pre catalyst CO concentration is inferred from the engine operating conditions, and catalyst temperature is determined using the temperature sensor output and the engine exhaust flow heat transfer model. The real time curve is compared to a reference curve to determine catalyst performance. Catalyst performance with respect to CO conversions can then be correlated to that for HC and NO to meet OBD requirements.

US Patent:

6666201, Dec 23, 2003

Filed:

May 29, 2002

Appl. No.:

10/063955

Inventors:

Christopher John Mazur - Canton MI

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F02B 7508

US Classification:

123698, 12356816, 123690

Abstract:

A method and system for diagnosing a condition of an EGR valve used in an engine system. The EGR valve controls the portion exhaust gases produced by such engine system and fed back to an intake of such engine system. The engine system includes a NOx sensor for measuring NOx in such exhaust. The method includes: determining a time rate of change in NOx measured by the NOx sensor; comparing the determined time rate of change in the measured NOx with a predetermined expected time rate of change in measured NOx; and determining the condition of the EGR valve as a function of such comparison. The method also includes: determining from NOx measured by the NOx sensor and engine operating conditions indications of instances when samples of such measured NOx are greater than an expected maximum NOx level for such engine condition and less than an expected minimum NOx level for such engine condition; and determining the condition of the EGR valve as a function of a statistical analysis of such indications. The method includes determining whether the NOx sensor is faulty and wherein the EGR condition determining includes determining whether the NOx sensor is faulty.

US Patent:

6701707, Mar 9, 2004

Filed:

Sep 4, 2002

Appl. No.:

10/064956

Inventors:

Devesh Upadhyay - Dearborn MI
Christopher John Mazur - Canton MI

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 300

US Classification:

60277, 60276, 60295

Abstract:

A diesel engine emission control system uses an upstream oxidation catalyst and a downstream SCR catalyst to reduce NOx in a lean exhaust gas environment. The engine and upstream oxidation catalyst are configured to provide approximately a 1:1 ratio of NO to NO2 entering the downstream catalyst. In this way, the downstream catalyst is insensitive to sulfur contamination, and also has improved overall catalyst NOx conversion efficiency. Degradation of the system is determined when the ratio provided is no longer near the desired 1:1 ratio. This condition is detected using measurements of engine operating conditions such as from a NOx sensor located downstream of the catalysts. Finally, control action to adjust an injected amount of reductant in the exhaust gas based on the actual NO to NO2 ratio upstream of the SCR catalyst and downstream of the oxidation catalyst.

US Patent:

7007458, Mar 7, 2006

Filed:

Feb 27, 2003

Appl. No.:

10/375798

Inventors:

Christopher John Mazur - Canton MI, US
Michael Leonard Corsetti - Clinton Township MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 3/00

US Classification:

60277, 60274, 60276

Abstract:

A computer controlled diagnostic system is described that monitors catalyst activity of an upstream catalyst using a sensor located downstream of a downstream catalyst. In this way, a system configuration is achieved that allows for diagnosis as well as improved air-fuel ratio control.

US Patent:

7134273, Nov 14, 2006

Filed:

Sep 4, 2002

Appl. No.:

10/064957

Inventors:

Christopher John Mazur - Canton MI, US
Devesh Upadhyay - Dearborn MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 3/00

US Classification:

60286, 60274, 60277, 60285, 60301

Abstract:

A diesel engine emission control system uses an upstream oxidation catalyst and a downstream SCR catalyst to reduce NOx in a lean exhaust gas environment. The engine and upstream oxidation catalyst are configured to provide approximately a 1:1 ratio of NO to NO2 entering the downstream catalyst. In this way, the downstream catalyst is insensitive to sulfur contamination, and also has improved overall catalyst NOx conversion efficiency. Degradation of the system is determined when the ratio provided is no longer near the desired 1:1 ratio. This condition is detected using measurements of engine operating conditions such as from a NOx sensor located downstream of the catalysts. Finally, control action to adjust an injected amount of reductant in the exhaust gas based on the actual NO to NO2 ratio upstream of the SCR catalyst and downstream of the oxidation catalyst.

US Patent:

20040039608, Feb 26, 2004

Filed:

Jun 21, 2002

Appl. No.:

10/177204

Inventors:

Christopher Mazur - Beverly Hills MI, US
Rong Zhang - Madison Heights MI, US
Susan Weinrauch - White Lake MI, US
Susan LaFreniere - Macomb Township MI, US
John Simmons - Grosse Pointe Woods MI, US

Assignee:

Lulac, LLC

International Classification:

G06F017/60

US Classification:

705/004000

Abstract:

The present invention provides a computer-implemented system and method for providing a post employment qualified health care benefit plan funded during a covered person's working years to covered persons under the plan. The method having the steps of providing a computer system to manipulate and process a plurality of predefined variables; electing a number of benefit payout years for receiving benefits during a payout period; electing either a standard non-lump-sum premium option or a lump sum premium option; electing standard non-lump-sum variables under the standard non-lump-sum premium option; electing lump sum variables under the lump sum premium option; using the computer system to calculate a schedule of premiums based on the standard non-lump-sum variables and the lump sum variables to obtain an associated maximum benefit amount; and paying a maximum benefit amount for qualified health expenses upon occurrence of a triggering event.

US Patent:

6363713, Apr 2, 2002

Filed:

Jul 20, 2000

Appl. No.:

09/621309

Inventors:

Christopher John Mazur - Canton MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F01N 300

US Classification:

60274, 60277, 60286, 60276, 123479, 123690

Abstract:

An on-board diagnostic method for detecting whether a diesel emissions control system is functioning properly by continuously monitoring the temperature rise generated by the catalyst and the light-off temperature with reference to theoretical values stored in an engine control computer. When either of the parameters falls below a predetermined threshold value, the vehicle emissions may exceed emission standards and, if so, the system causes a malfunction indicator light (MIL) to be energize to advise the driver of the need for service.