Ford Global Technolgoies, LLC

Eric Krengel

Gopichandra Surnilla

Peter Charles Moilanen

Steven Schwochert

Todd Anthony Rumpsa

Jianwen James Yi

Eric Warren Curtis

Eric Matthew Storhok

Zheng Xu

Joseph Lyle Thomas

Michael Howard Shelby

Mark W Peters

Mohannad Hakeem

Shuya Shark Yamada

Joseph Patrick Whitehead

Mansour Beshay

Deanna Hoffman

Patrick Shearer

Methods and systems are described for controlling fuel injection in an engine equipped with a dual injector system including a port injector and a direct injector. A ratio of port injected fuel to direct injected fuel is adjusted based at least on intake valve temperature. The proportion of fuel port injected into a cylinder is increased as the intake valve temperature for the given cylinder increases to improve fuel vaporization in the intake port.

Method for fuel injection control

Methods and system for controlling air-fuel ratios in an internal combustion engine are disclosed. One embodiment comprises, adjusting a sensor calibration correction value of an exhaust sensor upstream of a catalyst based on an exhaust sensor downstream of the catalyst. The adjustment of the sensor calibration correction value takes advantage of the fact that certain aromatic hydrocarbons causing errors in the reading of the upstream sensor are not present at the downstream sensor due to sufficient catalytic activity of a catalyst positioned between the sensors.

System and methods for controlling air fuel ratio

Methods and systems are provided for adjusting a grille shutter opening based on an estimated amount of fuel in oil dilution. In one example, a method may include adjusting a grille shutter opening to a closed position in response to an oil dilution amount above a threshold, the position determined based on the oil dilution amount in addition to each of engine coolant temperature and acceleration/deceleration.

Method for adjusting a grille shutter opening

Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for different fuels injected into an engine cylinder from different fuel injectors during engine start and crank. By splitting fuel injection during start and cranking so that fuel of lower alcohol content is port injected and fuel of higher alcohol content is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved.

Method and system for engine control

Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for fuel injected into an engine cylinder from a plurality of fuel injectors during engine start and crank. By splitting injection of fuel during start so that a portion of fuel is port injected and a remaining portion is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved.

Method and system for engine cold start and hot start control

Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for fuel injected into an engine cylinder from a plurality of fuel injectors during engine start and crank. By splitting injection of fuel during start so that a portion of fuel is port injected and a remaining portion is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved. The injections are adjusted based on the alcohol content of the injected fuel to take advantage of the charge cooling properties of the fuel.

A method for starting an internal combustion engine having direct fuel injection, comprising of adjusting a number of direct injections per combustion cycle based on a cylinder event number from a first cylinder event.

Direct injection event-based engine starting

Systems and methods of operating an engine with a varying fuel composition. In one example, a split injection is performed during engine cranking with at least some fuel injected in the intake stroke and some fuel injected in the compression stroke. Further, a split ratio of the injection is adjusted based on the alcohol content of the injected fuel.

Fuel-based injection control

A method for reducing particulate matter emitted by an engine is disclosed. In one example, the start of fuel injection timing is adjusted in response to a change in engine operating conditions. In particular, start of injection timing may be advanced and then retarded to promote fuel vaporization.

Growing community of inventors

Dearborn, MI, United States of America

Eric Krengel