#INT ENGINE INTELLECTUAL PROP [US]

Engine exhaust gas NOx Model

Methods are provided for estimating the NO x content of exhaust gas produced by an internal combustion engine (10). The method includes determining one or more operating parameters. The method further…

DRIVE·Oct 29·1 min read

F02D41/1462 INT ENGINE INTELLECTUAL PROP [US]

Methods for controlling engine idle speed

The present technology provides one or more methods of operating an engine in a motor vehicle. In at least one embodiment, the existence of an engine idle condition is determined. The method may also …

DRIVE·Apr 2·1 min read

F02D31/003 INT ENGINE INTELLECTUAL PROP [US]

Catalytic fuel vaporizer and fuel reformer assembly

In one embodiment, an assembly for use with a lean NOx catalyst (LNC) is described. An outer tube is coupled to the LNC. An inner tube is disposed completely inside the outer tube. The exhaust flow is…

DRIVE·Aug 28·1 min read

B01D53/56 INT ENGINE INTELLECTUAL PROP [US]

Oxygen concentration setpoint modification

A method of controlling exhaust gas recirculation in an engine is provided. An amount of oxygen in an exhaust of an engine is measured. A desired intake manifold oxygen concentration is obtained. An e…

DRIVE·Aug 7·1 min read

F02B47/08 INT ENGINE INTELLECTUAL PROP [US]

Setpoint bank control architecture

A method of controlling operation of an engine is provided that utilizes a number of preset operating parameters. The method determines an operating mode of the engine. The method determines an operat…

DRIVE·Aug 7·1 min read

F02D41/0047 INT ENGINE INTELLECTUAL PROP [US]

NOx control

A method of controlling an engine based upon airflow is provided. A request for a desired torque output of the engine is received. A first amount of fuel required to generate the desired torque is ret…

DRIVE·Aug 7·2 min read

F02D41/005 INT ENGINE INTELLECTUAL PROP [US]

Soot accumulation model for setpoint modification

A method controlling operation of an engine utilizing a number of preset operating parameters is provided. An operating mode of the engine is determined. An operating state of the engine is determined…

DRIVE·Aug 7·1 min read

F01N9/002 INT ENGINE INTELLECTUAL PROP [US]

Turbocharger control

A method of controlling a variable geometry turbocharger is provided. A predefined desired boost pressure of a turbocharger is obtained from a memory. A predefined desired mass flow rate in an intake …

DRIVE·Aug 7·1 min read

F02D41/0007 INT ENGINE INTELLECTUAL PROP [US]

Limiting NOx emissions of a compression ignition internal combustion engine

A method for controlling an internal combustion engine (10) limits emission of undesirable compounds of nitrogen and oxygen and provides increased transient power, the method comprising: operating the…

DRIVE·May 15·1 min read

F01N13/0097 INT ENGINE INTELLECTUAL PROP [US]

Electric-actuated control valve of a unit fuel injector

A unit fuel injector (10) has a control valve (40) in which a valve spool (92) is displaceable within a bore (91) of a valve body (90) between a limit of displacement that fully opens an oil outlet po…

DRIVE·Jul 25·2 min read

F02M57/026 INT ENGINE INTELLECTUAL PROP [US]

Apparatus and method for protecting against fouling of an exhaust gas recirculation valve

This invention relates to a method for protecting an exhaust gas recirculation (EGR) valve from fouling due to hydrocarbon condensation at low EGR cooler outlet exhaust temperatures. In modem internal…

DRIVE·Mar 7·1 min read

F02D41/0072 INT ENGINE INTELLECTUAL PROP [US]

Exhaust valve actuation system for diesel particulate filter regeneration

An exhaust valve actuation system (30) for initiating a regeneration event at a diesel particulate filter (24) includes an engine control module (42) associated with an engine (14). A plurality of exh…

DRIVE·Aug 31·1 min read

F01L13/06 INT ENGINE INTELLECTUAL PROP [US]

Emission control system for an engine having a two-stage turbocharger

While an engine (10, 10A, 10B, 10C, 10D, 10E) is operating, a control system (22) processes data for certain engine operating parameters to calculate a quantity of exhaust gas needed to satisfy an exh…

DRIVE·May 11·2 min read

F02B29/0412 INT ENGINE INTELLECTUAL PROP [US]

High-temperature-flow engine brake with valve actuation

A control system and method for engine braking for a includes an engine braking control and at least one exhaust valve actuator (610) responsive to demands from the braking control for causing the exh…

DRIVE·May 4·1 min read

F02D13/04 INT ENGINE INTELLECTUAL PROP [US]

Forced convection EGR cooling system

A method of cooling recirculated exhaust gas from an exhaust manifold (27) of an engine (16) upstream of an intake manifold (29), the method including passing the recirculated exhaust gas from the exh…

DRIVE·May 4·1 min read

F01N13/0093 INT ENGINE INTELLECTUAL PROP [US]

System using supplemental compressor for EGR

A system for driving an EGR stream for an engine includes an exhaust gas turbine, a main compressor and a supplemental EGR compressor. The turbine drives the main compressor to pressurize intake air a…

DRIVE·Mar 16·1 min read

F01N5/04 INT ENGINE INTELLECTUAL PROP [US]

Exhaust system for engine braking

An engine braking system includes a turbocharger having a turbine and a compressor. An exhaust manifold includes a first pipe for channeling a first portion of the engine exhaust and a second pipe for…

DRIVE·Mar 16·2 min read

F01N13/10 INT ENGINE INTELLECTUAL PROP [US]

Hybrid intake system for superatmospheric charging of an engine intake manifold using lowpressure EGR/fresh air blending

An intake manifold (16) of an internal combustion engine (10) is charged to superatmospheric pressure by operating a first compressor (44) to compress fresh air diluted by exhaust gas into the intake …

DRIVE·Mar 16·1 min read

F02B33/44 INT ENGINE INTELLECTUAL PROP [US]

Crankcase and main bearing cap construction

A method for manufacturing an engine includes the steps of: casting a side skirt having first and second opposing sidewalls and casting a transverse wall of the cast material connecting the sidewalls.…

DRIVE·Mar 9·2 min read

F02F7/0053 INT ENGINE INTELLECTUAL PROP [US]

Intake manifold oxygen control

A method for controlling intake manifold oxygen for an engine having a fresh air inlet and an exhaust gas recirculation (EGR) circuit includes the steps of: establishing an ideal excess oxygen ratio f…

DRIVE·Mar 2·1 min read

F02D41/0007 INT ENGINE INTELLECTUAL PROP [US]

Heating exhaust gas for diesel particulate filter regeneration

An electrically heated element (52) within the exhaust system of a diesel engine raises the exhaust temperature sufficiently at idle or similar low exhaust flow/low exhaust temperature conditions to t…

DRIVE·Feb 9·1 min read

F01N13/009 INT ENGINE INTELLECTUAL PROP [US]

Exhaust gas cooler

A method of cooling exhaust gas (F) from an engine in an EGR cooler (10) for recirculation to the engine includes the steps of transporting the exhaust gas from the engine to a core assembly (22) disp…

DRIVE·Feb 2·1 min read

F02M26/32 INT ENGINE INTELLECTUAL PROP [US]

Closed loop diesel engine EGR control including event monitoring

A control system and method for an EGR valve (54), particularly in a diesel engine (30). A processor processes data in feedback control of the position of the valve element to develop from the data a …

DRIVE·Oct 13·2 min read

F02D23/02 INT ENGINE INTELLECTUAL PROP [US]

Closed loop diesel engine EGR control including event monitoring

A processor provides feedback control of the exhaust gas recirculation valve based upon the actual position of the valve and its desired position. The processor generates error signals from the positi…

DRIVE·Apr 7·1 min read

F02D23/02 INT ENGINE INTELLECTUAL PROP [US]