Ford Global Technolgoies, LLC

Ford Motor Company Limited

Marcus William Fried

Allen Joseph Lehmen

Thomas George Leone

Ethan D Sanborn

Michiel Jacques Van Nieuwstadt

Mrdjan J Jankovic

Robert Albert Stein

Kenneth John Behr

David R Pedro

Jeff Chester Lyjak

Michael Pozar

Daniel Buckrop

Aed M Dudar

Joseph Lyle Thomas

Shuya Shark Yamada

Timothy Jay Potter

Xiaoying Zhang

Paul Matthew Laing

Peter Charles Moilanen

David G Hagner

William J Clemens

Dave Hagner

Wen Dai

Chingpo Liu

Steven Paul Penkevich

Paul Mahlon Ranspach

Debojit Barua

Ron Reichenbach

Kathirgamasundaram Sooriakumar

Owen Lineham

Paul Lindsey Rounce

Ellsworth Schanergerger

Methods and systems are provided for an engine for adjusting cylinder parameter settings to optimize engine output during a transient mode. In one example, a method may include adjusting cylinder parameter settings, including a cam timing setting, a spark timing setting, and a fuel injection timing setting based on a chamber temperature in response to a rate of fuel injection acceleration being greater than a positive threshold, thus indicating the engine is in the transient mode.

Methods for transient fuel control compensation

Methods and systems are provided for an exhaust system. In one example, a method includes heating an aftertreatment device during an engine off. The heating includes utilizing one or more of an injector, a heater, and a recirculation fan.

Methods and systems for aftertreatment device

Systems and methods for estimating a temperature of an after treatment device in an exhaust system of an engine are described. In one example, the temperature is estimated during condition when an engine exits a fuel cut-out mode and excess fuel is delivered to the after treatment device for the purpose of increasing after treatment device efficiency.

Methods and system for estimating a temperature of an after treatment device during reactivation of an exhaust after treatment device

Systems and methods for estimating a temperature of an after treatment device in an exhaust system of an engine are described. In one example, the temperature is estimated during condition when an engine is in a fuel cut-out mode and fuel vapors are being released to the engine via a fuel vapor storage canister.

Methods and system for estimating a temperature of an after treatment device

Systems and methods for correcting an engine intake camshaft position and an engine exhaust camshaft position for a variable valve timing engine are described. In one example, intake manifold pressure of an engine is sampled while a motor/generator rotates the engine at a predetermined speed without fuel being supplied to the engine. A camshaft angle where minimum intake manifold pressure is observed is a basis for correcting camshaft position.

Methods and system for adjusting camshafts

Methods and systems are provided for improving engine start roughness. In one example, a method for reducing engine start NVH includes operating the engine with a split fuel injection while advancing injection timing as engine coolant temperature increases. The method allows for a smoother engine start while also reducing false misfire incidences.

Method and system for engine cold-start control

Methods and systems are presented for adjusting an amount of fuel supplied to an engine via port and direct fuel injectors during transient engine operating conditions where the fuel injection amount is adjusted responsive to the transient engine operating conditions. In one example, a fuel injection amount is adjusted based on a time constant for a filter that is based on a direct fuel injection fuel fraction.

Method and system for supplying fuel to an engine

Systems and methods for improving emissions of an internal combustion engine are presented. In one example, engine crankshaft acceleration is a basis for estimating engine air-fuel ratio during engine starting when output of an oxygen sensor may be unavailable. An actual engine air-fuel ratio may be adjusted in response to the estimated engine air-fuel ratio.

Systems and methods for improving engine emissions during starting

Methods and systems are provided for modeling an oil dilution qualitative indicator based on an integrated difference between a commanded air-to-fuel ratio and an engine air-to-fuel ratio as determined via an oxygen sensor, cumulative cold engine temperature operating duration, and fuel injection characteristics (timing, duration, number of injections) allowing fuel injection timing modifications that minimize oil dilution when the oil dilution qualitative indicator is greater than a threshold level.

System and method for reducing engine oil dilution

A method for compensating for thermal transient conditions of an engine that can cause valve growth or contraction is disclosed. In one example, the method provides cylinder air amount compensation during non-blow-through and blow-through conditions. The approach may improve cylinder air amount estimates, thereby improving engine emissions.

Method and system for compensating engine thermal conditions

A system for controlling an engine is described. In one example, fuel and a fluid are delivered to the engine cylinder, the fluid including at least some water. The amount of fuel and fluid delivered is adjusted in different ratios as a condition varies to address both pre-ignition and knock.

Control for alcohol/water/gasoline injection

A system and method to control spark timing of an engine wherein the injection timing of the engine is varied relative to a crankshaft position depending on engine operating conditions. According to the method, spark timing is varied as fuel injection timing varies for at least a portion of the engine operating range. The method can reduce fuel consumption, reduce transient fuel requirements, improve engine performance, and reduce CO emissions, at least under some conditions.

Controlling spark of an engine with adjustable intake valve timing

A system and method to control an engine wherein at least intake valve timing is retarded relative to a crankshaft position depending on engine operating conditions. According to the method, at least a portion of the fuel is injected during the intake valve open period with retarded valve timing. The method can reduce fuel consumption, reduce transient fuel requirements, improve engine performance, and reduce CO emissions, at least under some conditions.

Controlling an engine with adjustable intake valve timing

A fuel vapor recovery system for a direct injection internal combustion engine operating in both stratified and homogenous modes includes using fuel vapor with air assisted injectors. A compressor compresses a controlled mixture of fresh air and fuel vapor which is then delivered to the air supply of air assisted injectors, allowing fuel vapors to be purged from the vapor recovery system during all engine operating modes.

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Farmington Hills, MI, United States of America

Marcus William Fried