| Patent | Date |
|---|
Minimum power consumption for cool down diagnostic based on cylinder deactivation
Grant 10,190,481 - Levijoki , et al. Ja | 2019-01-29 |
Diagnostic systems and methods for selective catalytic reduction (SCR) systems based on NOx sensor feedback
Grant 9,657,630 - Perrin , et al. May 23, 2 | 2017-05-23 |
System and method for diagnosing a fault in an oxygen sensor based on ambient temperature
Grant 9,453,472 - Levijoki , et al. September 27, 2 | 2016-09-27 |
Fault diagnostic systems and methods using oxygen sensor impedance
Grant 9,297,843 - Gibson , et al. March 29, 2 | 2016-03-29 |
System and method for determining selective catalytic reduction dosing system performance using an ammonia sensor
Grant 9,234,447 - Levijoki , et al. January 12, 2 | 2016-01-12 |
System and method for diagnosing a fault in a switchable water pump for an engine based on a change in crankshaft speed
Grant 9,228,482 - Levijoki January 5, 2 | 2016-01-05 |
Diagnostic system and method for an oxygen sensor positioned downstream from a catalytic converter
Grant 9,181,844 - Levijoki , et al. November 10, 2 | 2015-11-10 |
System and method for diagnosing a fault in an oxygen sensor based on engine speed
Grant 9,146,177 - Levijoki , et al. September 29, 2 | 2015-09-29 |
Method and system for verifying the operation of an SCR catalyst
Grant 9,133,750 - Levijoki , et al. September 15, 2 | 2015-09-15 |
Low coolant temperature fault diagnostic systems and methods
Grant 9,103,267 - Levijoki , et al. August 11, 2 | 2015-08-11 |
Coordination of fuel cutoff for fault detection and hybrid operation
Grant 9,096,210 - Whitney , et al. August 4, 2 | 2015-08-04 |
System and method for controlling torque output of an engine when a water pump coupled to the engine is switched on or off
Grant 9,086,026 - Levijoki , et al. July 21, 2 | 2015-07-21 |
Exhaust gas oxygen sensor fault detection systems and methods using fuel vapor purge rate
Grant 9,057,338 - Levijoki , et al. June 16, 2 | 2015-06-16 |
System And Method For Diagnosing A Fault In An Oxygen Sensor Based On Ambient Temperature
App 20150128905 - LEVIJOKI; STEPHEN PAUL ; et al. | 2015-05-14 |
Minimum Power Consumption For Cool Down Diagnostic Based On Cylinder Deactivation
App 20150094930 - LEVIJOKI; STEPHEN PAUL ; et al. | 2015-04-02 |
System and method for diagnosing faults in an oxygen sensor
Grant 8,939,010 - Levijoki , et al. January 27, 2 | 2015-01-27 |
Method and apparatus for monitoring a reductant injection system in an exhaust aftertreatment system
Grant 8,915,062 - Wang , et al. December 23, 2 | 2014-12-23 |
Exhaust aftertreatment system with diagnostic delay
Grant 8,910,466 - Kowalkowski , et al. December 16, 2 | 2014-12-16 |
Exhaust diagnostic control system and method with NH3 depletion cleansing
Grant 8,869,513 - Levijoki , et al. October 28, 2 | 2014-10-28 |
Exhaust diagnostic system and method with SCR NH3 depletion cleansing mode for initial step in the def quality service healing test
Grant 8,869,607 - Levijoki , et al. October 28, 2 | 2014-10-28 |
Method and system for controlling a nitrogen oxide (NOx) conversion efficiency monitor
Grant 8,844,267 - Levijoki , et al. September 30, 2 | 2014-09-30 |
Fault Diagnostic Systems And Methods Using Oxygen Sensor Impedance
App 20140278013 - GIBSON; BRADLEY C. ; et al. | 2014-09-18 |
Diagnostic system and method for a switchable water pump
Grant 8,813,693 - Bialas , et al. August 26, 2 | 2014-08-26 |
Method and apparatus for monitoring a reductant injection system in an exhaust aftertreatment system
Grant 8,776,503 - Wang , et al. July 15, 2 | 2014-07-15 |
System And Method For Controlling Torque Output Of An Engine When A Water Pump Coupled To The Engine Is Switched On Or Off
App 20140172273 - Levijoki; Stephen Paul ; et al. | 2014-06-19 |
Exhaust Gas Oxygen Sensor Fault Detection Systems And Methods Using Fuel Vapor Purge Rate
App 20140130785 - Levijoki; Stephen Paul ; et al. | 2014-05-15 |
System And Method For Diagnosing A Fault In A Switchable Water Pump For An Engine Based On A Change In Crankshaft Speed
App 20140072450 - Levijoki; Stephen Paul | 2014-03-13 |
System And Method For Diagnosing A Fault In An Oxygen Sensor Based On Engine Speed
App 20140033812 - Levijoki; Stephen Paul ; et al. | 2014-02-06 |
Low Coolant Temperature Fault Diagnostic Systems And Methods
App 20140019026 - Levijoki; Stephen Paul ; et al. | 2014-01-16 |
Efficiency determination for a selective-catalytic-reduction catalyst
Grant 8,629,781 - Kowalkowski , et al. January 14, 2 | 2014-01-14 |
Exhaust Aftertreatment System With Diagnostic Delay
App 20130298527 - KOWALKOWSKI; JANEAN E. ; et al. | 2013-11-14 |
Exhaust Diagnostic Control System And Method With Nh3 Depletion Cleansing
App 20130276428 - Levijoki; Stephen Paul ; et al. | 2013-10-24 |
System and method for detecting low quality reductant and catalyst degradation in selective catalytic reduction systems
Grant 8,495,862 - Levijoki , et al. July 30, 2 | 2013-07-30 |
Coordination Of Fuel Cutoff For Fault Detection And Hybrid Operation
App 20130184907 - Whitney; Christopher E. ; et al. | 2013-07-18 |
System And Method For Diagnosing Faults In An Oxygen Sensor
App 20130104626 - Levijoki; Stephen Paul ; et al. | 2013-05-02 |
Diagnostic System And Method For A Switchable Water Pump
App 20130089436 - Bialas; Daniel A. ; et al. | 2013-04-11 |
Exhaust Diagnostic System And Method With Scr Nh3 Depletion Cleansing Mode For Initial Step In The Def Quality Service Healing Test
App 20130014575 - Levijoki; Stephen Paul ; et al. | 2013-01-17 |
Exhaust diagnostic systems and methods with SCR conversion efficiency monitor disabling
Grant 8,353,202 - Thompson , et al. January 15, 2 | 2013-01-15 |
Diagnostic System And Method For An Oxygen Sensor Positioned Downstream From A Catalytic Converter
App 20120317959 - Levijoki; Stephen Paul ; et al. | 2012-12-20 |
Urea Injector Diagnostics Using Spectral Analysis For Scr Nox Reduction System
App 20120286063 - Wang; Yue-Yun ; et al. | 2012-11-15 |
Efficiency Determination For A Selective-catalytic-reduction Catalyst
App 20120280819 - Kowalkowski; Janean E ; et al. | 2012-11-08 |
Exhaust diagnostic systems and methods for resetting after operation with poor reductant quality
Grant 8,286,419 - Levijoki , et al. October 16, 2 | 2012-10-16 |
Method And System For Controlling A Nitrogen Oxide (nox) Conversion Efficiency Monitor
App 20120233984 - Levijoki; Stephen Paul ; et al. | 2012-09-20 |
Intrusive SCR efficency testing systems and methods for vehicles with low temperature exhaust gas
Grant 8,205,440 - Levijoki , et al. June 26, 2 | 2012-06-26 |
System And Method For Determining Selective Catalytic Reduction Dosing System Performance Using An Ammonia Sensor
App 20120144801 - Levijoki; Stephen Paul ; et al. | 2012-06-14 |
System And Method For Detecting Low Quality Reductant And Catalyst Degradation In Selective Catalytic Reduction Systems
App 20120085082 - Levijoki; Stephen Paul ; et al. | 2012-04-12 |
Method And Apparatus For Monitoring A Reductant Injection System In An Exhaust Aftertreatment System
App 20120067031 - Wang; Yue-Yun ; et al. | 2012-03-22 |
Exhaust Diagnostic Systems And Methods With Scr Conversion Efficiency Monitor Disabling
App 20120041596 - Thompson; Brett B. ; et al. | 2012-02-16 |
Method And Apparatus For Monitoring A Reductant Injection System In An Exhaust Aftertreatment System
App 20110083424 - Wang; Yue-Yun ; et al. | 2011-04-14 |
Exhaust Diagnostic Systems And Methods For Resetting After Operation With Poor Reductant Quality
App 20110061363 - Levijoki; Stephen Paul ; et al. | 2011-03-17 |
Intrusive Scr Efficency Testing Systems And Methods For Vehicles With Low Temperature Exhaust Gas
App 20110061372 - Levijoki; Stephen Paul ; et al. | 2011-03-17 |
Method And System For Verifying The Operation Of An Scr Catalyst
App 20110023456 - Levijoki; Stephen Paul ; et al. | 2011-02-03 |
DIAGNOSTIC SYSTEMS AND METHODS FOR SELECTIVE CATALYTIC REDUCTION (SCR) SYSTEMS BASED ON NOx SENSOR FEEDBACK
App 20100154386 - Perrin; James M. ; et al. | 2010-06-24 |
| 