Jason Daniel 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:

8161808, Apr 24, 2012

Filed:

Feb 24, 2009

Appl. No.:

12/391626

Inventors:

Kyle E Crawford - Howell MI, US
Jason Daniel Mullins - Howell MI, US

International Classification:

G01M 15/10

US Classification:

7311475

Abstract:

A method and system for monitoring operation of an exhaust treatment system of a diesel engine includes a dosing system including an injector for injecting an injection fluid and a pump for pressurizing the injection fluid. The system also includes a pressure sensor in communication with the dosing system generating a pressure signal. The system further includes a control module that determines a pressure error signal in response to the pressure signal and generates a fault signal in response.

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:

8413432, Apr 9, 2013

Filed:

Jun 30, 2010

Appl. No.:

12/826872

Inventors:

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

International Classification:

F01N 3/20
F01N 3/02
F01N 3/10

US Classification:

60295, 60274, 60276, 60285, 60286, 60297, 60303, 60311

Abstract:

A regeneration control system for a vehicle includes a regeneration control module and a regeneration interrupt module. The regeneration control module selectively provides fuel to an oxidation catalyst for a regeneration event of a particulate filter that occurs during a predetermined melting period for frozen dosing agent. The regeneration interrupt module selectively interrupts the regeneration event and disables the provision of fuel to the oxidation catalyst before the regeneration event is complete when a temperature of a dosing agent injector that is located between the oxidation catalyst and the particulate filter 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:

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.

US Patent:

8504280, Aug 6, 2013

Filed:

Sep 21, 2010

Appl. No.:

12/886981

Inventors:

Scot A. Douglas - Howell MI, US
Jason Daniel Mullins - Howell MI, US

International Classification:

G06F 19/00
F01N 3/10
F02D 41/30

US Classification:

701114, 60277, 60286, 701104

Abstract:

A diagnostic system for an engine includes an error detection module and a diagnostic module. The error detection module selectively detects a fuel control error based on a change in a fuel correction value used to determine a quantity of fuel supplied directly to an exhaust system. The diagnostic module identifies a cause of the fuel control error based on a period since a last refueling event. The diagnostic module identifies the cause as one of variation in an actual heating value of the fuel and faulty operation of a fuel injection system that supplies the fuel. The diagnostic module further identifies the cause based on a first amount of the fuel contained in a fuel tank at a start of the last refueling event and a second amount of the fuel added to the fuel tank during the last refueling event. A control system and method are also provided.