Ford Global Technologies, LLC

Other

Ford Motor Company Limited

Frod Global Tech., Inc.

Michiel Jacques Van Nieuwstadt

William Charles Ruona

Devesh Upadhyay

Brien Lloyd Fulton

Michael Hopka

Paul Joseph Tennison

Dave Charles Weber

Eric Matthew Kurtz

In Kwang Yoo

Christopher Oberski

Ilya V Kolmanovsky

John Paul Bogema

David John Kubinski

Timothy Webb

Douglas Raymond Martin

Thomas Alan Brewbaker

Daniel Joseph Styles

Robert F Novak

Jason Brian Martz

Bret Alan Zimmerman

Frank M Korpics

Garry Anthony Zawacki

Roberto Teran, Jr

John Eric Rollinger

Giovanni Cavataio

Allen Joseph Lehmen

Scott Donald Cooper

Cory Hendrickson

Joseph Norman Ulrey

Daniel Roettger

Sumanth Reddy Dadam

Yong-Wha Kim

Emil G Serban

Chris Paul Glugla

Michael James Uhrich

Helmut Ruhland

Moritz Klaus Springer

Christine Kay Lambert

Thomas Lorenz

Jacobus Hendrik Visser

Georg Louven

Jan Harmsen

David Hanna

Norman Hiam Opolsky

Jim Bromham

Aaron John Oakley

Dean Pennala

Kenneth James Miller

Fazal Urrahman Syed

Mrdjan J Jankovic

Diana D Brehob

Furqan Zafar Shaikh

Christian Winge Vigild

Ethan D Sanborn

Jing Sun

Chuan He

Kenneth John Behr

Stephen William Magner

Harold Huimin Sun

William Goodwin

Garth Michael Meyer

Margherita Zanini-Fisher

Peter Mitchell Lyon

Mazen Hammoud

Marcus William Fried

Mohammad Haghgooie

Kevin Murphy

David K Chen

Bruce David Bryant

Dwayne Pollitt

David Joseph Dronzkowski

Kevin Chen

Joseph Lyle Thomas

Ryan Abraham McGee

Julia Helen Buckland

Rani Kiwan

Douglas Allen Dobson

Adam Krach

Qing Wang

Tyler Kelly

John Erik Mikael Hellstrom

Ognyan N Yanakiev

David Robert Nader

Siamak Hashemi

Benjamin M Rocci

Leon Hu

John Edward Hedges

Simon Petrovic

Ching-Hsong George Wu

Jason Ronald Smith

Shawn Michael Spannbauer

Christopher Polonowski

Patrick Edward Smithberger

Timothy Robert Gernant

Clifford Norman Montreuil

Justin Trzeciak

Edward Doemer

David Bilby

David Chester Waskiewicz

John Vito Cavataio

Systems and methods for diagnosing operation of valves that control exhaust flow through crossover pipes are described. In one example, the diagnostics may be based on output of upstream and downstream oxygen sensors. In particular, correlation between output of an upstream oxygen sensor and a downstream oxygen sensor may be indicative of a valve not being in an expected position.

Exhaust system valve diagnostics

Methods and systems are provided for adjusting an ammonia (NH) sensor output using readings of a nitrogen oxide (NOx) sensor, the NOx sensor having a sensitivity factor to NH. In one example, a method may include determining and updating a gain value of the NHsensor during zero NOx conditions to be used to calculate a corrected NHsensor output value, and determining and updating an offset value of the NHsensor during zero NHconditions to be used to zero the NHsensor during zero NOx conditions.

System and methods for adjusting NHsensor drift

Methods and systems for reducing emissions of an internal combustion engine are described. In one example, a combustor is applied post shutdown to purge stored NOx from a passive NOx absorber to prepare for a subsequent engine start. The trapped NOx is subsequently reduced via a selective catalytic reduction catalyst.

Engine cold start system and method

Methods and systems for reducing emissions of an internal combustion engine are described. In one example, an electric heater and a selective reduction catalyst are positioned in a passage downstream of a combustor where urea may be injected to the selective reduction catalyst to reduce NOx emissions that may be generated by the combustor.

System and method for engine cold start

Methods and systems for reducing emissions of an internal combustion engine are described. In one example, an electric heater and a passive NOx absorber or other emissions control device are positioned in a passage downstream of a combustor so as to process emissions from the combustor before an engine is started.

Methods and systems for improving NOx conversion efficiency of a selective catalytic reduction catalyst are described. In one example, an amount of NHstored in a SCR is adjusted after stopping an engine so that a desired amount of NHmay be stored within the SCR when the engine is restarted.

System and method for dosing a selective catalytic reduction catalyst

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 systems are provided for controlling an EGR valve and VGT vanes during engine braking. In one example, a method may include during an engine braking event in an engine, coordinating adjustments of both of a cross-sectional area of an inlet of a turbine and an opening of a valve of an exhaust gas recirculation (EGR) system to achieve a desired braking power and to maintain an exhaust system temperature above a threshold temperature during the engine braking event.

Method and systems for engine braking via coordinated EGR and VGT actuation

Methods and systems are provided for diagnostics of exhaust gas recirculation (EGR) components including an EGR pressure sensor. In one example, a method for an exhaust gas recirculation (EGR) system of a vehicle comprises diagnosing an excessive EGR flow rate via an MAP-MAF strategy, the MAP-MAF strategy including estimating an EGR flow rate based on a difference between an output of a manifold absolute pressure (MAP) sensor of the vehicle and an output of a mass airflow (MAF) sensor of the vehicle; and in response to stable intrusive conditions being met, intrusively commanding an EGR valve of the EGR system to a closed position to confirm the diagnosed excessive EGR flow rate. If the excessive flow is detected after the EGR valve is commanded to the closed position, a diagnostic code may be set.

Method for detecting excessive EGR flow

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

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

Methods and systems are provided for a turbocharger. In one example, a method may include bypassing exhaust gases flowing to the turbocharger in response to a catalyst temperature being less than a threshold temperature. The bypassing includes opening a bypass valve and adjusting a position of one or more turbine nozzle vanes.

Methods and systems for turbine bypass

Methods and systems are provided for increasing EGR delivered to an engine. In one example, a method may include determining an EVO timing set point and an external EGR setpoint in parallel, based on an inverse model. The EVO timing may be adjusted based on a combination of the EVO timing setpoint and an EGR cylinder balancing feedback loop, thereby varying internal EGR to the engine to supplement external EGR.

Valve timing modulation for EGR balancing

Growing community of inventors

Ann Arbor, MI, United States of America

Michiel Jacques Van Nieuwstadt