Ford Global Technolgoies, LLC

Christopher Cundy

Thomas George Leone

Daniel Joseph Styles

Eric Matthew Kurtz

Michael Howard Shelby

Jason Brian Martz

Daniel William Kantrow

Sathish Atluri

Joshua Zachary Fried

Clayton Mikush

A method and a system for adjusting a base idle speed of an engine are described. In one example, the method reduces engine speed according to output of a sensor that senses mechanical vibrations. Once a vibration level exceeds a threshold, engine speed reduction ceases and the base engine idle speed is adjusted according to a present engine speed.

Engine idle speed control

Methods and systems are provided for cylinder deactivation to reduce tailpipe emissions and increase exhaust temperature. In one example, a method may include operating a first set of cylinders in a first combustion cycle over modified eight strokes and a second set of cylinders in a second combustion cycle over modified four strokes. Each cylinder in the first set of cylinders may be selectively deactivated via a variable displacement engine (VDE) mechanism while each cylinder in the second set of cylinders may be selectively deactivated via an active decompression technology (ADT) mechanism.

Methods and systems for reducing engine exhaust emissions

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Livonia, MI, United States of America

Christopher Cundy