Ford Global Technolgoies, LLC

Michael James Uhrich

James Michael Kerns

Ross Dykstra Pursifull

Imad Hassan Makki

Joseph Norman Ulrey

Timothy Joseph Clark

Adam Nathan Banker

Jason Aaron Lupescu

Joseph Lyle Thomas

Stephen B Smith

Shane Elwart

Giovanni Cavataio

Gopichandra Surnilla

Mario Anthony Santillo

David Oshinsky

Pankaj Kumar

Daniel Joseph Styles

Mrdjan J Jankovic

Robert Roy Jentz

Jeffrey Allen Doering

Paul Hollar

Stephen William Magner

Michael Casedy

Yong-Wha Kim

Michael Igor Kluzner

Hassene Jammoussi

Joseph Robert Theis

William Samuel Schwartz

Karen Evelyn Bevan

Chad Allan Baker

Thomas George Leone

Chris Paul Glugla

Michiel Jacques Van Nieuwstadt

Rani Kiwan

Imtiaz Ali

Todd Anthony Rumpsa

Andrew Gregory Getsoian

Jason Wu

Richard E Soltis

William Charles Ruona

Gregory McConville

Timothy Noah Blatchley

Kenneth John Behr

Daniel V Orzel

Robert Joseph Jerger

Paul Matthew Laing

Eva Thanasiu

David Robert Nader

Carolyn Parks Hubbard

Yisun Cheng

Steven Schwochert

Harendra S Gandhi

Steve William Magner

David A May

Natalie Roxas

Theodore Michael Kostek

Dimitar Petrov Filev

Mohannad Hakeem

Christopher Paul Glugla

Dilip B Patel

Andrew Paul Bagnasco

David Charles Weber

Christopher Kirk Davey

Ken O Jahr

Emil G Serban

Timothy Robert Gernant

Michael Daniel Shane

Mark Skilling

Systems and methods for detecting and compensating miswiring of oxygen sensors of a cylinder bank of an engine are disclosed. In one example, fuel control parameters are monitored to determine whether or not the fuel control parameters diverge to fuel control thresholds. If so, a controller may switch which cylinder's equivalence ratios are adjusted in response to output of a particular oxygen sensor.

Methods and systems for verifying oxygen sensor connections

A catalytic converter system having oxygen storage materials is disclosed and methods for determining whether to reactivate oxygen storage materials and monitoring failure events of the oxygen storage materials are also disclosed.

Accelerated catalyst reactivation control strategy for gasoline vehicle emissions system in conjunction with N2 selective catalyst to minimize NOX remake

Methods and systems are provided for an exhaust system. In one example, a method may include determining presence of a zone flow based on a comparison of a first exhaust sensor and a second exhaust sensor. The presence or absence of the zone flow may determine a rate at which an air-fuel ratio is adjusted.

Systems and methods for air-fuel ratio imbalance monitor

Systems and methods for controlling a gasoline urea selective catalytic reductant catalyst are described. In one example, an observer is provided that corrects an estimate of an amount of NHthat is stored in a SCR. The amount of NHthat is stored in the SCR is a basis for generating additional NHor ceasing generation of NH.

Methods and systems for controlling selective catalytic reductant catalyst of a gasoline engine

Methods and systems to control a temperature of a selective catalytic reduction catalyst are disclosed. In one example, a diverter valve that includes two butterfly valves that are coupled together via a shaft is adjusted to control a temperature at an inlet of the selective catalytic reduction catalyst so that the selective catalytic reduction catalyst may operate efficiently.

Method and system for controlling SCR temperature

Methods and system for controlling selective catalytic reductant catalyst of a gasoline engine

Methods and systems are provided for operating an engine of a vehicle. In one example, a method may include positioning an oxygen sensor in an engine exhaust downstream from a selective catalytic reduction (SCR) catalyst, determining an oxygen storage capacity of the SCR catalyst based on a measurement of the oxygen sensor, and determining an extent of deactivation of the SCR catalyst based on the oxygen storage capacity.

Engine emmissions control methods and systems

Methods and systems are provided for a fuel system. In one example, a method includes comparing a resistance of a solenoid coil of a direct injector to a threshold resistance. The method further includes selecting one of a transient or a steady-state pressure-based injector balancing (PBIB) model in response to the comparison.

Methods and systems for fuel injection control

Methods and systems are provided for balancing a plurality of fuel injectors. In one example, a method includes adjusting direct injector parameters in response to a learned direct injector fueling error. The pulse-width supplied to the direct injectors is adjusted to balance cylinder fueling.

Methods and systems for improving fuel injection repeatability

Methods and systems are provided for balancing injector fueling. In one example, a method includes learning portions of a transfer function shape by firing a plurality of injectors at PWs of a set of PWs following a reference injection.

Methods and systems are provided for an aftertreatment system. In one example, a system comprising a spark-ignited engine comprising a selective catalytic reduction device (SCR) arranged in an exhaust passage downstream of a catalyst, and an injector positioned to inject a reductant directly into the exhaust passage downstream of the catalyst subsequent an engine shut-off event.

Methods and systems for an aftertreatment system

Methods and systems for adjusting fuel injector operation according to fuel pressure and electrical fuel injector signals are described. In one example, the fuel injector transfer function values are adjusted in a way that may lower a burden on fuel injector adaptation. The methods and systems described herein may be suitable for direct and port fuel injectors.

Method and system for adjusting operation of a fuel injector

Methods are provided for emissions control of a vehicle. In one example, a method for an engine may include, responsive to a plurality of diagnostic entry conditions being met, indicating degradation of a hydrocarbon trap based on an NHamount in an exhaust gas. In some examples, the NHamount may be determined based on one or more NOsensor outputs. In some examples, the plurality of diagnostic entry conditions may include the engine having been in operation over an initial duration immediately following an engine cold start. Conditions of the exhaust gas following the engine cold start may be opportunistically utilized in determining the NHamount from the one or more NOsensor outputs. In some examples, the exhaust gas may be actively provided at a predetermined air-fuel ratio to meet at least one of the plurality of diagnostic entry conditions.

Methods for vehicle emissions control

Methods and systems are provided for reducing errors in estimated fuel rail pressure incurred at the time of a scheduled injection event due to engine-driven cyclic fuel rail pressure changes. In one example, a pulse-width commanded during a scheduled injection event is determined as a function fuel rail pressure samples collected over a moving window that is customized for the corresponding fuel injector. In another example, the commanded pulse-width is determined as a function of an average fuel rail pressure sampled during a quiet zone of injector operation and predicted fuel rail pressure altering events occurring between the quiet zone and the scheduled injection event.

Method and system for fuel injector balancing

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West Bloomfield, MI, United States of America

Michael James Uhrich