Ford Global Technolgoies, LLC

Anil Shah

Brien Lloyd Fulton

Carlos Armesto

Gopal Krishna Chamarthi

John G Fraser

Peter Kanefsky

Scott Eeley

Arnold Kromberg

Thomas C Erickson

Timothy Chyo

Douglas Schoen

John Eric Rollinger

Douglas Raymond Martin

Michiel Jacques Van Nieuwstadt

Julia Helen Buckland

Tyler Kelly

Benjamin M Rocci

Emil G Serban

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 detecting hydrocarbon ingestion into an engine based on the simultaneous monitoring of cylinder imbalance and an elevated exhaust exotherm. Crankshaft acceleration data is monitored during steady-state and transient engine conditions while exhaust temperatures are estimated during non-regeneration conditions. Engine speed and load is limited to reduce further hydrocarbon ingestion.

Method and system for engine unburned hydrocarbon control

A method is described for cooling fuel for a diesel engine system with a common rail fuel injection system having a coolant pump and a fan. The method comprises passing a returning fuel from the engine through a fuel to coolant heat exchange system to cool the fuel, and adjusting the cooling of the fuel by controlling the coolant pump and/or the engine cooling fan.

Diesel fuel cooling system and control strategy

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Canton, MI, United States of America

Anil Shah