Stephen Levijoki

Person

Swartz Creek, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method of cam phase control based on cylinder wall temperature
- Patent number 10,436,140
- Issue date Oct 8, 2019
- GM Global Technology Operations LLC
- Stephen P. Levijoki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Electronic throttle control using model predictive control
- Patent number 10,287,994
- Issue date May 14, 2019
- Stephen P. Levijoki
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method to determine reference airflow actuator positions for a gaso...
- Patent number 10,273,900
- Issue date Apr 30, 2019
- GM Global Technology Operations LLC
- Christopher E. Whitney
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Minimum power consumption for cool down diagnostic based on cylinde...
- Patent number 10,190,481
- Issue date Jan 29, 2019
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Method of controlling camshaft phase based on humidity
- Patent number 10,167,746
- Issue date Jan 1, 2019
- GM Global Technology Operations LLC
- Christopher E. Whitney
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method and controller for engine torque control in a vehicle during...
- Patent number 10,151,251
- Issue date Dec 11, 2018
- Stephen P Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Combustion engine airflow management systems and methods
- Patent number 10,152,834
- Issue date Dec 11, 2018
- GM Global Technology Operations LLC
- Chaitanya Sankavaram
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Systems and methods for multiple catalyst light off events during d...
- Patent number 10,001,073
- Issue date Jun 19, 2018
- GM Global Technology Operations LLC
- J. Michael Gwidt
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of engine cam control for cabin heating
- Patent number 9,932,909
- Issue date Apr 3, 2018
- GM Global Technology Operations LLC
- Stephen P. Levijoki
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Diagnostic systems and methods for selective catalytic reduction (S...
- Patent number 9,657,630
- Issue date May 23, 2017
- GM Global Technology Operations LLC
- James M. Perrin
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
System and method for diagnosing a fault in an oxygen sensor based...
- Patent number 9,453,472
- Issue date Sep 27, 2016
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Fault diagnostic systems and methods using oxygen sensor impedance
- Patent number 9,297,843
- Issue date Mar 29, 2016
- GM Global Technology Operations LLC
- Bradley C. Gibson
- G01 - MEASURING TESTING
Information Patent Grant
System and method for determining selective catalytic reduction dos...
- Patent number 9,234,447
- Issue date Jan 12, 2016
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
System and method for diagnosing a fault in a switchable water pump...
- Patent number 9,228,482
- Issue date Jan 5, 2016
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Diagnostic system and method for an oxygen sensor positioned downst...
- Patent number 9,181,844
- Issue date Nov 10, 2015
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
System and method for diagnosing a fault in an oxygen sensor based...
- Patent number 9,146,177
- Issue date Sep 29, 2015
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- G01 - MEASURING TESTING
Information Patent Grant
Method and system for verifying the operation of an SCR catalyst
- Patent number 9,133,750
- Issue date Sep 15, 2015
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Low coolant temperature fault diagnostic systems and methods
- Patent number 9,103,267
- Issue date Aug 11, 2015
- Stephen Paul Levijoki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Coordination of fuel cutoff for fault detection and hybrid operation
- Patent number 9,096,210
- Issue date Aug 4, 2015
- GM Global Technology Operations LLC
- Christopher E. Whitney
- B60 - VEHICLES IN GENERAL
Information Patent Grant
System and method for controlling torque output of an engine when a...
- Patent number 9,086,026
- Issue date Jul 21, 2015
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust gas oxygen sensor fault detection systems and methods using...
- Patent number 9,057,338
- Issue date Jun 16, 2015
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
System and method for diagnosing faults in an oxygen sensor
- Patent number 8,939,010
- Issue date Jan 27, 2015
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method and apparatus for monitoring a reductant injection system in...
- Patent number 8,915,062
- Issue date Dec 23, 2014
- GM Global Technology Operations LLC
- Yue-Yun Wang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Exhaust aftertreatment system with diagnostic delay
- Patent number 8,910,466
- Issue date Dec 16, 2014
- GM Global Technology Operations LLC
- Janean E. Kowalkowski
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Exhaust diagnostic control system and method with NH3 depletion cle...
- Patent number 8,869,513
- Issue date Oct 28, 2014
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Exhaust diagnostic system and method with SCR NH3 depletion cleansi...
- Patent number 8,869,607
- Issue date Oct 28, 2014
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method and system for controlling a nitrogen oxide (NOx) conversion...
- Patent number 8,844,267
- Issue date Sep 30, 2014
- GM Global Technology Operations LLC
- Stephen Paul Levijoki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Diagnostic system and method for a switchable water pump
- Patent number 8,813,693
- Issue date Aug 26, 2014
- GM Global Technology Operations LLC
- Daniel A. Bialas
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Method and apparatus for monitoring a reductant injection system in...
- Patent number 8,776,503
- Issue date Jul 15, 2014
- GM Global Technology Operations LLC
- Yue-Yun Wang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Efficiency determination for a selective-catalytic-reduction catalyst
- Patent number 8,629,781
- Issue date Jan 14, 2014
- GM Global Technology Operations LLC
- Janean E. Kowalkowski
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

Information Patent Application
ELECTRONIC THROTTLE CONTROL USING MODEL PREDICTIVE CONTROL
- Publication number 20180328294
- Publication date Nov 15, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen P. Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHOD OF CAM PHASE CONTROL BASED ON CYLINDER WALL TEMPERATURE
- Publication number 20180274473
- Publication date Sep 27, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen P. Levijoki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
METHOD OF CONTROLLING CAMSHAFT PHASE BASED ON HUMIDITY
- Publication number 20180230864
- Publication date Aug 16, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Christopher E. Whitney
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHOD TO DETERMINE REFERENCE AIRFLOW ACTUATOR POSITIONS FOR A GASO...
- Publication number 20180216563
- Publication date Aug 2, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Christopher E. Whitney
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Systems And Methods For Multiple Catalyst Light Off Events During D...
- Publication number 20170342924
- Publication date Nov 30, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- J. Michael GWIDT
- B60 - VEHICLES IN GENERAL
Information Patent Application
SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN AN OXYGEN SENSOR BASED...
- Publication number 20150128905
- Publication date May 14, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- STEPHEN PAUL LEVIJOKI
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
MINIMUM POWER CONSUMPTION FOR COOL DOWN DIAGNOSTIC BASED ON CYLINDE...
- Publication number 20150094930
- Publication date Apr 2, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- STEPHEN PAUL LEVIJOKI
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FAULT DIAGNOSTIC SYSTEMS AND METHODS USING OXYGEN SENSOR IMPEDANCE
- Publication number 20140278013
- Publication date Sep 18, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- BRADLEY C. GIBSON
- G01 - MEASURING TESTING
Information Patent Application
SYSTEM AND METHOD FOR CONTROLLING TORQUE OUTPUT OF AN ENGINE WHEN A...
- Publication number 20140172273
- Publication date Jun 19, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST GAS OXYGEN SENSOR FAULT DETECTION SYSTEMS AND METHODS USING...
- Publication number 20140130785
- Publication date May 15, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN A SWITCHABLE WATER PUMP...
- Publication number 20140072450
- Publication date Mar 13, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN AN OXYGEN SENSOR BASED...
- Publication number 20140033812
- Publication date Feb 6, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- G01 - MEASURING TESTING
Information Patent Application
LOW COOLANT TEMPERATURE FAULT DIAGNOSTIC SYSTEMS AND METHODS
- Publication number 20140019026
- Publication date Jan 16, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST AFTERTREATMENT SYSTEM WITH DIAGNOSTIC DELAY
- Publication number 20130298527
- Publication date Nov 14, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- JANEAN E. KOWALKOWSKI
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST DIAGNOSTIC CONTROL SYSTEM AND METHOD WITH NH3 DEPLETION CL...
- Publication number 20130276428
- Publication date Oct 24, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
COORDINATION OF FUEL CUTOFF FOR FAULT DETECTION AND HYBRID OPERATION
- Publication number 20130184907
- Publication date Jul 18, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Christopher E. Whitney
- B60 - VEHICLES IN GENERAL
Information Patent Application
SYSTEM AND METHOD FOR DIAGNOSING FAULTS IN AN OXYGEN SENSOR
- Publication number 20130104626
- Publication date May 2, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DIAGNOSTIC SYSTEM AND METHOD FOR A SWITCHABLE WATER PUMP
- Publication number 20130089436
- Publication date Apr 11, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Daniel A. Bialas
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
EXHAUST DIAGNOSTIC SYSTEM AND METHOD WITH SCR NH3 DEPLETION CLEANSI...
- Publication number 20130014575
- Publication date Jan 17, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DIAGNOSTIC SYSTEM AND METHOD FOR AN OXYGEN SENSOR POSITIONED DOWNST...
- Publication number 20120317959
- Publication date Dec 20, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
UREA INJECTOR DIAGNOSTICS USING SPECTRAL ANALYSIS FOR SCR NOX REDUC...
- Publication number 20120286063
- Publication date Nov 15, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Yue-Yun Wang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EFFICIENCY DETERMINATION FOR A SELECTIVE-CATALYTIC-REDUCTION CATALYST
- Publication number 20120280819
- Publication date Nov 8, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Janean E Kowalkowski
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
METHOD AND SYSTEM FOR CONTROLLING A NITROGEN OXIDE (NOX) CONVERSION...
- Publication number 20120233984
- Publication date Sep 20, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
SYSTEM AND METHOD FOR DETERMINING SELECTIVE CATALYTIC REDUCTION DOS...
- Publication number 20120144801
- Publication date Jun 14, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
SYSTEM AND METHOD FOR DETECTING LOW QUALITY REDUCTANT AND CATALYST...
- Publication number 20120085082
- Publication date Apr 12, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Stephen Paul Levijoki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
METHOD AND APPARATUS FOR MONITORING A REDUCTANT INJECTION SYSTEM IN...
- Publication number 20120067031
- Publication date Mar 22, 2012
- GM Global Technology Operations, Inc.
- Yue-Yun Wang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST DIAGNOSTIC SYSTEMS AND METHODS WITH SCR CONVERSION EFFICIEN...
- Publication number 20120041596
- Publication date Feb 16, 2012
- GM Global Technology Operations, Inc.
- Brett B. Thompson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
METHOD AND APPARATUS FOR MONITORING A REDUCTANT INJECTION SYSTEM IN...
- Publication number 20110083424
- Publication date Apr 14, 2011
- GM Global Technology Operations, Inc.
- Yue-Yun Wang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
INTRUSIVE SCR EFFICENCY TESTING SYSTEMS AND METHODS FOR VEHICLES WI...
- Publication number 20110061372
- Publication date Mar 17, 2011
- GM Global Technology Operations, Inc.
- Stephen Paul Levijoki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST DIAGNOSTIC SYSTEMS AND METHODS FOR RESETTING AFTER OPERATIO...
- Publication number 20110061363
- Publication date Mar 17, 2011
- GM GLOBAL TECHNOLOGY OPEARATIONS, INC.
- Stephen Paul Levijoki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Stephen Levijoki

Person

Patents Grantslast 30 patents

Method of cam phase control based on cylinder wall temperature

Electronic throttle control using model predictive control

Method to determine reference airflow actuator positions for a gaso...

Minimum power consumption for cool down diagnostic based on cylinde...

Method of controlling camshaft phase based on humidity

Method and controller for engine torque control in a vehicle during...

Combustion engine airflow management systems and methods

Systems and methods for multiple catalyst light off events during d...

Method of engine cam control for cabin heating

Diagnostic systems and methods for selective catalytic reduction (S...

System and method for diagnosing a fault in an oxygen sensor based...

Fault diagnostic systems and methods using oxygen sensor impedance

System and method for determining selective catalytic reduction dos...

System and method for diagnosing a fault in a switchable water pump...

Diagnostic system and method for an oxygen sensor positioned downst...

System and method for diagnosing a fault in an oxygen sensor based...

Method and system for verifying the operation of an SCR catalyst

Low coolant temperature fault diagnostic systems and methods

Coordination of fuel cutoff for fault detection and hybrid operation

System and method for controlling torque output of an engine when a...

Exhaust gas oxygen sensor fault detection systems and methods using...

System and method for diagnosing faults in an oxygen sensor

Method and apparatus for monitoring a reductant injection system in...

Exhaust aftertreatment system with diagnostic delay

Exhaust diagnostic control system and method with NH3 depletion cle...

Exhaust diagnostic system and method with SCR NH3 depletion cleansi...

Method and system for controlling a nitrogen oxide (NOx) conversion...

Diagnostic system and method for a switchable water pump

Method and apparatus for monitoring a reductant injection system in...

Efficiency determination for a selective-catalytic-reduction catalyst

Patents Applicationslast 30 patents

ELECTRONIC THROTTLE CONTROL USING MODEL PREDICTIVE CONTROL

METHOD OF CAM PHASE CONTROL BASED ON CYLINDER WALL TEMPERATURE

METHOD OF CONTROLLING CAMSHAFT PHASE BASED ON HUMIDITY

METHOD TO DETERMINE REFERENCE AIRFLOW ACTUATOR POSITIONS FOR A GASO...

Systems And Methods For Multiple Catalyst Light Off Events During D...

SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN AN OXYGEN SENSOR BASED...

MINIMUM POWER CONSUMPTION FOR COOL DOWN DIAGNOSTIC BASED ON CYLINDE...

FAULT DIAGNOSTIC SYSTEMS AND METHODS USING OXYGEN SENSOR IMPEDANCE

SYSTEM AND METHOD FOR CONTROLLING TORQUE OUTPUT OF AN ENGINE WHEN A...

EXHAUST GAS OXYGEN SENSOR FAULT DETECTION SYSTEMS AND METHODS USING...

SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN A SWITCHABLE WATER PUMP...

SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN AN OXYGEN SENSOR BASED...

LOW COOLANT TEMPERATURE FAULT DIAGNOSTIC SYSTEMS AND METHODS

EXHAUST AFTERTREATMENT SYSTEM WITH DIAGNOSTIC DELAY

EXHAUST DIAGNOSTIC CONTROL SYSTEM AND METHOD WITH NH3 DEPLETION CL...

COORDINATION OF FUEL CUTOFF FOR FAULT DETECTION AND HYBRID OPERATION

SYSTEM AND METHOD FOR DIAGNOSING FAULTS IN AN OXYGEN SENSOR

DIAGNOSTIC SYSTEM AND METHOD FOR A SWITCHABLE WATER PUMP

EXHAUST DIAGNOSTIC SYSTEM AND METHOD WITH SCR NH3 DEPLETION CLEANSI...

DIAGNOSTIC SYSTEM AND METHOD FOR AN OXYGEN SENSOR POSITIONED DOWNST...

UREA INJECTOR DIAGNOSTICS USING SPECTRAL ANALYSIS FOR SCR NOX REDUC...

EFFICIENCY DETERMINATION FOR A SELECTIVE-CATALYTIC-REDUCTION CATALYST

METHOD AND SYSTEM FOR CONTROLLING A NITROGEN OXIDE (NOX) CONVERSION...

SYSTEM AND METHOD FOR DETERMINING SELECTIVE CATALYTIC REDUCTION DOS...

SYSTEM AND METHOD FOR DETECTING LOW QUALITY REDUCTANT AND CATALYST...

METHOD AND APPARATUS FOR MONITORING A REDUCTANT INJECTION SYSTEM IN...

EXHAUST DIAGNOSTIC SYSTEMS AND METHODS WITH SCR CONVERSION EFFICIEN...

METHOD AND APPARATUS FOR MONITORING A REDUCTANT INJECTION SYSTEM IN...

INTRUSIVE SCR EFFICENCY TESTING SYSTEMS AND METHODS FOR VEHICLES WI...

EXHAUST DIAGNOSTIC SYSTEMS AND METHODS FOR RESETTING AFTER OPERATIO...