Ford Global Technolgoies, LLC

Julia Helen Buckland

Jeffrey Allen Doering

Brad Alan Boyer

Mrdjan J Jankovic

Ilya V Kolmanovsky

Gregory McConville

Baitao Xiao

John Eric Rollinger

Amey Y Karnik

Jing Sun

David Bell

Joseph Norman Ulrey

Tyler Kelly

Stephen Lee Cooper

Robert Andrew Wade

Timothy Stolzenfeld

Gopichandra Surnilla

Ralph Wayne Cunningham

Daniel Joseph Styles

Hamid-Reza Ossareh

Matthew John Gerhart

Suzanne Kay Wait

Chris Paul Glugla

James Alfred Hilditch

Keith Michael Plagens

Charles Allen Cockerill

Barbara Westrate

Alex O'Connor Gibson

Diana D Brehob

Timothy Joseph Clark

Todd Anthony Rumpsa

Jessy W Grizzle

Peter Douglas Kuechler

Jason Eugene Devries

De-Shiou Chen

Douglas Raymond Martin

Michiel Jacques Van Nieuwstadt

Xiaogang Zhang

David Karl Bidner

Adam Nathan Banker

Michael Howard Shelby

Jianwen James Yi

Mathew Alan Boesch

Christian Winge Vigild

Tobias John Pallett

Shuya Shark Yamada

Adam J Richards

Eric Warren Curtis

Jeffrey A Cook

Harold Huimin Sun

Paul Matthew Laing

Uros Kalabic

Benjamin M Rocci

John Edward Hedges

Richard Walter Anderson

James Randall Leiby

Naginder Gogna

Rodney John Tabaczynski

Satheesh Makkapati

Emil G Serban

Phil Andrew Fabien

David G Hagner

Dave Hagner

Anil Shah

Wen Dai

Deborah M Bjorge

Dushyant Karthikeyan

Kevin Payne

Charlie Teng

Joseph Scillieri

Lev Lezhnev

Methods and systems are provided for improving surge control in a boosted engine system configured with an electric motor to provide electrical boost assistance. Tip-in and tip-out surge are addressed by increasing the opening of a compressor recirculation valve and coordinating the recirculation valve opening with adjustments to an exhaust waste-gate position and a power output by the electric motor. The adjustments enable an intake airflow to be provided that operates the compressor outside a surge region while providing a target boost pressure as operator torque demand increases or decreases.

System and method for boost control

Methods and systems are provided for expediting charging of a battery before entry into a zero emissions zone. In one example, the battery is charged with a ratio of motor torque drawn from a first electric motor of an electric turbocharger and a second electric motor of an HEV driveline. The ratio is coordinated with adjustments to an exhaust waste-gate and an intake throttle so as to maintain operator torque demand and propel the vehicle while charging the battery.

System and method for battery charging

Methods and systems are provided for coordinated control of a compound boosting system, including a first compressor staged upstream of a second compressor in an engine intake. In one example, a method may include operating the second, downstream compressor in steady-state to achieve an overall pressure ratio across the compound boosting system while operating the first, upstream compressor transiently, based on an airflow shortfall at the downstream compressor. A timing and amount of electric assistance provided to transiently operate the first, upstream compressor may be adjusted dynamically as the pressure ratio across the second compressor changes.

Method and system for a boosted engine

System and method for controlling surge margin in a boosted engine system

Methods and systems are provided for expediting exhaust particulate filter regeneration. In one example, an engine controller may generate an exotherm at the filter by operating engine cylinders with air-fuel imbalance while using electric assist to a turbocharger to meet a torque demand and raise an intake airflow to enhance the effect of the exotherm. Once heated, the filter may be regenerated by flowing extra air to the exhaust via an air pump and injecting extra fuel to an exhaust passage via an exhaust injector.

Method and system for particulate filter regeneration

Methods and systems are provided for warming an engine and/or engine fluids. In one example, a method may comprise powering on an electric motor of an intake boost device to generate heat, circulating coolant and/or engine oil through the boost device to absorb the heat produced by the boost device, and then flowing the coolant and/or engine oil to the engine to transfer the heat absorbed from the boost device to the engine. In this way, an engine may be warmed without running the engine rich by using the heat generated by the electric motor of the boost device to warm the engine.

Systems and methods for warming up an engine with an electric boost device

Methods and systems are provided for controlling a wastegate coupled to a turbine. In one example, a method may include during steady engine operation, actuating a wastegate to introduce an oscillation in boost pressure, and updating gain of a wastegate feedback controller responsive to the oscillation in boost pressure.

System for wastegate control

Method and system for wastegate control

Methods and systems are provided for diagnosing an air filter for a vehicle. In one example, a method may include actuating a motor to flow air through the air filter during engine off, and indicating air filter replacement based on an air pressure measurement while actuating the motor.

Diagnosing an air filter with an electric boosting device

Methods and systems are provided for improving boost response. A continuously variable compressor recirculation valve and a wastegate are adjusted in complementary frequency bands to move compressor operation away from a surge limit and reduce boost delivery errors. An intake throttle is also concurrently adjusted to offset manifold air-flow rate errors resulting from the wastegate or recirculation valve adjustments.

Methods and systems for boost control

Embodiments for a charge air cooler are provided. In one example, an engine method comprises during a first mode, decreasing a volume of a charge air cooler in response to a compressor operation upstream of the charge air cooler. In this way, compressor surge may be prevented.

Method for controlling a variable charge air cooler

Methods and systems are provided for reducing vacuum at an outlet of an upstream first compressor when powering on a second compressor positioned downstream of the first compressor. In one example, a method may comprise, in response to a desired engine torque increasing above a threshold: powering on a second compressor positioned downstream of a first compressor in an intake of an engine system, and opening a compressor recirculation valve (CRV) positioned in a bypass passage coupled across the first compressor for a duration. As such, a portion of intake gasses from upstream of the first compressor may be routed to the second compressor.

Vacuum control via a compressor bypass valve in a twin-compressor engine system

Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control.

Method and system for binary flow turbine control

Methods and systems are provided for calibrating a compressor surge line. In one example, a method may include adjusting the compressor surge line based on a vehicle speed in addition to a compressor pressure ratio. For example, at higher vehicle speeds, above a threshold vehicle speed, a less aggressive surge line calibration may be utilized in order to improve drivability while at lower vehicle speeds, below the threshold vehicle speed, a more aggressive surge line calibration may be utilized for NVH mitigation.

Methods and systems for surge control

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Commerce Township, MI, United States of America

Julia Helen Buckland