Ford Global Technolgoies, LLC

Ford Motor Company Limited

Eric Matthew Storhok

Gopichandra Surnilla

Jianwen James Yi

Zheng Xu

Tobias John Pallett

Eric Warren Curtis

Ralph Wayne Cunningham

Eric Krengel

Michael Howard Shelby

Amey Y Karnik

Adithya Pravarun Re Ranga

Pravin Sashidharan

Eric Krengal

Ross Dykstra Pursifull

Joseph Norman Ulrey

James Michael Kerns

Imad Hassan Makki

Frank Gonzales, Jr

Ed A Schoenberg

Kelly M Arbanas

Jim Hilditch

Methods and systems are provided for tracking a fuel puddle mass in the intake port of a deactivated engine cylinder. The difference in fuel evaporation rate in the deactivated cylinder intake is accounted for by applying distinct time constant and gain values to a transient fuel compensation model. A fuel vapor content is clipped once the intake vapor pressure in the intake port of the deactivated cylinder reaches a saturation pressure limit.

Method and system for controlling engine fueling

A method for controlling differences in cylinder mixtures for a two cylinder bank engine having a turbocharger is presented. In one example, the description includes a method for adjusting valve timing to reduce cylinder mixture variation.

Method for compensating an operating imbalance between different banks of a turbocharged engine

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

Various methods are described for controlling engine operation for an engine having a turbocharger and direction injection. One example method includes performing at least a first and second injection during a cylinder cycle, the first injection generating a lean combustion and the second injection injected after combustion such that it exits the cylinder unburned into the exhaust upstream of a turbine of the turbocharger; and adjusting at least the first injection based on engine speed, where the at least first and second injection are performed responsive to turbocharger speed.

Engine idle speed and turbocharger speed control

A method for starting an internal combustion engine having direct fuel injection into a cylinder, comprising of only for a first combustion event under selected conditions during an engine start, directly injecting fuel to the cylinder at least twice, where each of said two injections at least partially occur during a compression stroke.

Event-based direct injection engine starting with a variable number of injections

Various methods are described for controlling engine operation for an engine having a turbocharger and direct injection. One example method includes performing a first and second injection during a cylinder cycle, the first injection generating a lean combustion and the second injection exiting the cylinder unburned into the exhaust upstream of a turbine of the turbocharger.

An emissions control system for a vehicle configured to travel on a road is provided. In one example, a forced modulation of a UEGO is provided when output of a HEGO sensor is unavailable. The system may improve catalyst efficiency

Controlled air-fuel ratio modulation during catalyst warm up based on universal exhaust gas oxygen sensor input

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Ann Arbor, MI, United States of America

Eric Matthew Storhok