Jason S Mullins

US Patent:

8156736, Apr 17, 2012

Filed:

May 28, 2009

Appl. No.:

12/473693

Inventors:

Jason Daniel Mullins - Brighton MI, US
Thomas Larose, Jr. - Redford MI, US
James M. Perrin - Livonia MI, US
Paul Jasinkiewicz - Northiville MI, US

International Classification:

F01N 3/00

US Classification:

60295, 60297, 60276

Abstract:

A system comprises an injection control module and a fuel film module. The injection control module controls a flow rate of fuel injected into an exhaust system to adjust a temperature of exhaust gas. The fuel film module determines an accumulation rate of fuel on a surface of the exhaust system based on the flow rate of the fuel. The fuel film module determines a release rate of fuel from the surface of the exhaust system based on a flow rate of the exhaust gas. The injection control module adjusts the flow rate of the fuel based on the accumulation rate and the release rate.

US Patent:

8327621, Dec 11, 2012

Filed:

Apr 22, 2009

Appl. No.:

12/427930

Inventors:

Thomas LaRose, Jr. - Redford MI, US
Jason Daniel Mullins - Brighton MI, US
Eric R. Snyder - Waterloo IA, US
Paul Jasinkiewicz - Northville MI, US
James M. Perrin - Livonia MI, US
Sarah Funk - Canton MI, US

International Classification:

F01N 3/00
F01N 3/10
F01N 3/02

US Classification:

60286, 60295, 60299, 60300, 60311

Abstract:

A temperature control system comprises a temperature determination module, a temperature correction module, a temperature control module, and an updating module. The temperature determination module determines a desired outlet temperature for an oxidation catalyst (OC) that is located upstream of a particulate filter (PF) in an exhaust system. The temperature correction module determines a temperature correction from a plurality of temperature corrections. The temperature control module controls an outlet temperature of the OC based on the desired outlet temperature and the temperature correction. The updating module selectively updates at least one of the plurality of temperature corrections when an engine speed and an engine load are within respective predetermined ranges.

US Patent:

8413427, Apr 9, 2013

Filed:

Jun 8, 2010

Appl. No.:

12/796062

Inventors:

Jason Daniel Mullins - Brighton MI, US
Justin A. Shetney - Livonia MI, US
Kyle E. Crawford - Howell MI, US
Paul Jasinkiewicz - Northville MI, US
Rebecca J Darr - Milford MI, US

International Classification:

F01N 3/20

US Classification:

60286, 60274, 60287, 60295, 60297, 60298, 60301, 60303, 60311

Abstract:

A dosing control system for a vehicle includes a pump control module and an enabling/disabling module. The pump control module controls a pump that provides dosing agent to a dosing agent injector located upstream of a selective catalytic reduction (SCR) catalyst in an exhaust system. The enabling/disabling module disables the pump for a predetermined melting period after engine startup when the dosing agent is frozen and selectively activates the pump during the predetermined melting period to cool the dosing agent injector when a tip temperature of the dosing agent injector is greater than a predetermined temperature.

US Patent:

8429898, Apr 30, 2013

Filed:

Jun 18, 2010

Appl. No.:

12/818651

Inventors:

Rebecca J. Darr - Milford MI, US
James M. Perrin - Livonia MI, US
Paul Jasinkiewicz - Northville MI, US
Jason Daniel Mullins - Brighton MI, US
Kyle E. Crawford - Howell MI, US

International Classification:

F01N 3/20
F01N 3/10

US Classification:

60285, 60274, 60277, 60286, 60295, 60301, 60303

Abstract:

A dosing control system for a vehicle includes an adaption triggering module, a dosing management module, and an adaption ending module. The adaptation triggering module triggers performance of an adaptation event when a first amount of nitrogen oxides (NOx) measured by a first NOx sensor located downstream of a selective catalytic reduction (SCR) catalyst is greater than a predicted value of the first amount of NOx. The dosing management module disables dosing agent injection during the adaptation event. The adaptation ending module selectively delays ending the adaptation event after a predetermined number of phases of the adaption event have been completed based on a comparison of the first amount of NOx with a second amount of NOx measured by a second NOx sensor located upstream of the SCR catalyst.

US Patent:

8443591, May 21, 2013

Filed:

Nov 10, 2009

Appl. No.:

12/615363

Inventors:

Thomas LaRose, Jr. - Redford MI, US
Jason Daniel Mullins - Brighton MI, US
Eric R. Snyder - Waterloo IA, US
Matthew King - Waterford MI, US
Paul Jasinkiewicz - Northville MI, US
Nicasio Gomez, III - Howell MI, US

International Classification:

F01N 3/00
F01N 3/02

US Classification:

60295, 60276, 60285, 60311

Abstract:

An engine control system comprises an oxygen comparison module and a regeneration control module. The oxygen comparison module compares an oxygen concentration of an exhaust gas of an engine to an oxygen threshold. A regeneration control module initiates regeneration of a particulate filter and controls regeneration based on the oxygen comparison and at least one of a particulate filter load, a particulate filter temperature, and a speed of the engine.

US Patent:

8454916, Jun 4, 2013

Filed:

Jun 18, 2010

Appl. No.:

12/818688

Inventors:

James M. Perrin - Livonia MI, US
Rebecca J. Darr - Milford MI, US
Paul Jasinkiewicz - Northville MI, US
Jason Daniel Mullins - Brighton MI, US
Kyle E. Crawford - Howell MI, US

International Classification:

B01D 47/00
B01D 53/86
B01D 53/58
B01D 53/56

US Classification:

423210, 423235, 423238, 4232391

Abstract:

A dosing control system for a vehicle includes a current storage module, an adaption triggering module, and an adaption ending module. The current storage module estimates an amount of ammonia stored by a selective catalytic reduction (SCR) catalyst. The adaptation triggering module triggers a reduction of the amount of ammonia stored by the SCR catalyst to zero when a first amount of nitrogen oxides (NOx) measured by a first NOx sensor located downstream of the SCR catalyst is greater than a predicted value of the first amount of NOx. The adaptation ending module selectively ends the reduction and enables injection of dosing agent based on a comparison of the first amount of NOx with a second amount of NOx upstream of the SCR catalyst.

US Patent:

8479495, Jul 9, 2013

Filed:

Mar 3, 2009

Appl. No.:

12/396886

Inventors:

Sarah Funk - Canton MI, US
Thomas Larose, Jr. - Redford MI, US
Eric R Snyder - Westland MI, US
Paul Jasinkiewicz - Northville MI, US
Jason Daniel Mullins - Howell MI, US
James M Perrin - Livonia MI, US

International Classification:

F01N 3/025

US Classification:

60286, 60295

Abstract:

A control module for a vehicle includes a correction module that generates a correction signal based on a regeneration state of an exhaust system of the vehicle and based on a received environmental signal. The environmental signal includes at least one of an altitude value, an ambient temperature, and an air flow value. The air flow value corresponds to air flow across an external area of the exhaust system. A first post injection module generates a first post injection signal. A second post injection module adjusts the first post injection signal based on the correction signal to generate a second post injection signal.

US Patent:

8479500, Jul 9, 2013

Filed:

Apr 8, 2011

Appl. No.:

13/083024

Inventors:

Shouxian Ren - Ypsilanti MI, US
Rahul Mital - Rochester Hills MI, US
Jason Daniel Mullins - Brighton MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B01D 50/00
F01N 3/00
F01N 3/10

US Classification:

60297, 60285, 60286, 422169

Abstract:

An exhaust system for an engine comprises a selective catalytic reduction (“SCR”) device having a NOreducing selective catalytic reduction composition disposed thereon. A particulate filter is disposed in the rigid shell or canister downstream of the selective catalytic reduction device. An ammonia dosing system comprising a controller in signal communication with NOsensors located upstream and downstream of the selective catalytic reduction device for injection of ammonia into the exhaust gas upstream of the SCR device based on information collected from the NOsensors to thereby optimize the reduction of NOin the exhaust gas. An ammonia-neutral oxidation catalyst compound is disposed on the wall-flow substrate of the particulate filter device and is configured to pass through ammonia constituents of the exhaust gas exiting the selective catalytic reduction device with little or no conversion of the ammonia constituents to N2, N2O and NO.