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| Number | Title | Issue Date |
| 8160800 | System and method of fan control A method to operate a vehicle equipped with an electronic controlled internal combustion engine. The engine fan is used as a dynamic fan brake when the vehicle exceeds a minimum predetermined operating parameter for a predetermined period of time, and is disabled on... | 04/17/2012 |
| 8156733 | Method of operating an internal combustion engine to heat up a selective catalyst reducer In one embodiment, the present invention relates to a method to operate an internal combustion engine equipped with an Electronic Control Unit (ECU) with memory, an exhaust system including a Diesel Oxidation Catalyst (DOC), a Diesel Particulate Filter (DPF), upstre... | 04/17/2012 |
| 8156729 | Variable engine out emission control roadmap A method for operating an internal combustion engine for variable engine out NOx control talking into account the age of the SCR. ... | 04/17/2012 |
| 8141348 | Engine after-treatment controls using dosing below catalyst light-off temperature A method of controlling dosing of a hydrocarbon fuel into the exhaust gas of a combustion engine upstream of a particulate filter when the exhaust gas temperature into an oxidation catalyst upstream of a particulate filter has dropped below the light-off temperature... | 03/27/2012 |
| 8109258 | Method of diagnosing a slow EGR system in an internal combustion engine There is disclosed a method for diagnosing slow EGR response in an internal combustion engine equipped with an electronic controller with memory. In one embodiment, the method includes passing an EGR setpoint value and an actual EGR value through first order filters... | 02/07/2012 |
| 8069656 | Method of controlling hydrocarbon accumulation in a particulate filter under certain operating conditions One embodiment of the invention includes a method of operating an internal combustion engine system comprising an engine, an oxidation catalyst, and a particulate filter, the method comprising: determining if the outlet temperature of exhaust gas from the oxidation ... | 12/06/2011 |
| 8020381 | Method for determining necessity of multiple vane cleaning procedures A method of operating an internal combustion engine with a variable geometry turbocharger whereby the turbocharger is cleaned of accumulated soot on a time based periodic basis. ... | 09/20/2011 |
| 7984362 | Method for static fault code synchronization in an internal combustion engine A method to synchronize Fault Code Memory between at least a first module and a second module in an engine controller unit; each said module in electronic communication with each other and having volatile and non volatile memory; said modules in electronic communica... | 07/19/2011 |
| 7980067 | Method to operate vehicle with internal combustion engine and exhaust aftertreatment system according to detected drive cycles A method to detect drive cycles of a vehicle and modify engine operation according to the detected drive cycles to effect regeneration of exhaust components, particularly the Diesel Particulate Filter. ... | 07/19/2011 |
| 7980066 | Thermal management for an internal combustion engine to optimize diesel particulate filter regeneration events A method to operate an electronically controlled internal combustion engine that recognizes when thermal management mode of operation is being applied to an engine but is not attaining desired exhaust temperature for aftertreatment. When the Engine Control System (E... | 07/19/2011 |
| 7980062 | Cold start white smoke aftertreatment protection A method for cold start white smoke protection of a hydrocarbon after treatment device, and method of engine operation to effect the same. The method comprises a) determining the temperature of the hydrocarbon after-treatment device during cold start conditions; b) ... | 07/19/2011 |
| 7942043 | On-board aftertreatment device tail pipe hydrocarbon slip calculation A method to determine hydrocarbon slip in a compression ignition engine equipped with an electronic control unit having memory and coupled to an exhaust gas aftertreatment system having a diesel oxidation catalyst, a diesel particulate filter, a selective catalyst r... | 05/17/2011 |
| 7873452 | Method and system for controlling a vehicle powertrain based upon actual vehicle load A method and system for controlling an engine controller in response to actual vehicle load. ... | 01/18/2011 |
| 7870730 | Variable geometry turbocharger extender idle vane cycle A method to operate and electronic controlled internal combustion engine, and particularly a heavy duty diesel engine, to effect vane cleaning of a variable geometry turbocharger. ... | 01/18/2011 |
| 7856808 | Method to re-open ash filled channels in diesel particulate filters A method for determining a time duration and an amount of fuel to include within exhaust gases to facilitate sintering of ash within a diesel particulate filter to reopen ash filled channels in said diesel particulate filter. ... | 12/28/2010 |
| 7793537 | Method of engine oil consumption The disclosure is directed to a method to determine oil consumption in an internal combustion engine that does not require extended operation of the engine in the files and is adaptable to be useful at production facilities for testing of sample engines from the lin... | 09/14/2010 |
| 7751956 | Distributed automotive diagnostic system with a single diagnostic protocol server and multiple data source modules for internal combustion engines A diagnostic system with a single diagnostic protocol server and multiple data source modules for an electronically controlled internal combustion engine. ... | 07/06/2010 |
| 7739028 | Method of operation of internal combustion engine with permanent fault code implementation The present invention is directed to a method to operate an internal combustion engine with electronic control wherein fault codes indicative of emissions levels may be stored in permanent memory. ... | 06/15/2010 |
| 7693649 | Monitoring unit state chart and a debounce logic A method of logging faults in an electronic controlled internal combustion engine that passes any fault readings through a debounce logic to determine whether the fault indication is real. ... | 04/06/2010 |
| 7680581 | Method for diagnosing air intake throttle actuators for internal combustion engines A method for diagnosing an air intake throttle with a spring activated throttle actuator, on an electronic controlled internal combustion engine system including an electronic control unit (ECU) with memory, a battery electrically connected to said engine and an ign... | 03/16/2010 |
| 7676318 | Real-time, table-based estimation of diesel engine emissions A real-time, on board, diesel engine emissions estimation with an empirical, table-based approach that accounts for up to eight (8) input parameters, for optimum emissions estimation under steady state or transient engine operation. The method considers a steady sta... | 03/09/2010 |
| 7664595 | Fault code memory manager architecture concept consisting of a dedicated monitoring unit module and a fault memory manager administrator module for heavy duty diesel engine A fault code memory manager architecture for heavy duty diesel engines consisting of a dedicated monitoring unit module and at least one fault code memory manager administrator module. ... | 02/16/2010 |
| 7660662 | Fault code memory administrator with a driving cycle state machine concept A method to operate an electronic controlled diesel engine to provide enhanced fault code administration responsive to the variable driving cycle. ... | 02/09/2010 |
| 7650781 | Method for verifying the functionality of the components of a diesel particulate filter system A method for verifying the functionality of the components for a diesel particulate filter system based upon engine speed, engine torque, inlet and outlet exhaust pressure at the diesel particulate filter. Various sensor signals are compared to calibratable values i... | 01/26/2010 |
| 7650220 | Method for anti-alias dual processing loop data acquisition in an internal combustion engine A method to operate an electronic controlled internal combustion engine with an electronic controller having memory and tables resident therein to obtain and use sensor data beyond the Nyquist threshold. ... | 01/19/2010 |
| 7631626 | Method to protect starter from overheating The present invention relates to a method to protect a starter from over heating during any cranking operation to start an electronically controlled internal combustion engine having an electronic control unit with a memory. The method includes constraining the time... | 12/15/2009 |
| 7631552 | Method of verifying component functionality on EGR and air systems In one aspect, the present invention is directed to a method for operating an electronically controlled internal combustion engine in a vehicle to perform at least one rationality check on at least one sensor to detect impending sensor failure and verify component f... | 12/15/2009 |
| 7631491 | Method and system for passive regeneration of compression ignition engine exhaust filters A method and system for passively regenerating particulate filters, catalyze soot filters and NOx adsorber catalysts for a vehicle having a compression ignition engine having an engine control module (ECM) including an integrated engine and emission system map, and ... | 12/15/2009 |
| 7628139 | Fuel injector with dual piezo-electric actuator A fuel injector 10 for a Diesel engine has a plunger 12 and two control valves 20 and 30 for controlling the injection of fuel from the main supply cavity to the discharge port 52. Each control valve 20 and 30 are act... | 12/08/2009 |
| 7614231 | Method and system to operate diesel engine using real time six dimensional empirical diesel exhaust pressure model A method to estimate real-time exhaust pressure in a compression ignition engine with variable geometry turbocharger and an EGR by adding the turbocharger RPM, the engine RPM, EGR value position and intake manifold pressure to determine a final turbocharger turbine ... | 11/10/2009 |
| 7604676 | Inertial impactor for closed crankcase ventilation An inertial impactor that uses gas stream flow rate to separate oil particles in internal combustion engine crankcase emissions. The inertial impactor is particularly adapted for use in closed crankcase ventilation systems. The oil particles have a particle size of ... | 10/20/2009 |
| 7533654 | Adaptive gains for electronic air intake throttle control A method for determining a coefficient gain to a signal command to actuate an air intake throttle plate to ensure that the throttle plate responds in a desired manner within a desired responsiveness with relative conformity over the life of the air intake manifold w... | 05/19/2009 |
| 7516009 | Intake charge deficit method for engine real-time diagnostics application The present invention relates to a method of engine operation to provide a real time engine diagnostic to detect EGR, turbocharger or compressor malfunctions and to prevent such malfunctions from damaging the engine. ... | 04/07/2009 |
| 7480559 | Calibratable fault reactions in heavy-duty diesel engines A method to operate an internal combustion engine by derating the engine in response to sensed emissions levels as compared to engine speed and engine torque and logging a fault. ... | 01/20/2009 |
| 7474954 | EGR differential pressure sensor auto calibration method A method for operating an electronic controlled internal combustion engine with an electronic control unit (ECU) having at least nonvolatile memory and tables resident therein to automatically recalibrate an exhaust gas recirculation (EGR) differential pressure sens... | 01/06/2009 |
| 7469577 | Method of diagnosing turbochargers for internal combustion engines A method for diagnosing a turbocharger (10) includes disconnecting the compressor outlet conduit (26) so that the engine (12) is naturally aspirated and using the engine to drive the turbine (14) of the turbocharger. The compressor outlet... | 12/30/2008 |
| 7461504 | Method and system for controlling temperatures of exhaust gases emitted from internal combustion engine to facilitate regeneration of a particulate filter Method, system, and controller for controlling exhaust gas temperatures by adjusting exhaust valve timing and/or fueling for one or more cylinders wherein normal operating cylinders receive additional fuel to compensate for the adjusted cylinders, thereby increasing... | 12/09/2008 |
| 7441403 | Method and system for determining temperature set points in systems having particulate filters with regeneration capabilities Method, system, and controller for determining a temperature set point for use in controlling regeneration of a particulate filter. The method, system, and controller being applicable in systems having an engine which emits exhaust gases having particulates which ar... | 10/28/2008 |
| 7437874 | System and method for backpressure compensation for controlling exhaust gas particulate emissions A method for controlling exhaust gas particulate emissions from a compression ignition internal combustion engine having a variable geometry turbocharger (VGT) includes the steps of determining backpressure across the engine and air mass flow into the engine, closin... | 10/21/2008 |
| 7436091 | Method and system of limiting arcing of rotating member A method and system of limiting arcing of a rotating member. The method and system including provisioning an electrically conducting device to couple the electrical potential associated with the housing and rotating member so as to limiting arcing therebetween. ... | 10/14/2008 |
