Ford Global Technolgoies, LLC

Gopal Krishna Chamarthi

Brien Lloyd Fulton

David Robert Nader

Paul Martin Niessen

Jason Ronald Smith

David Curtis Ives

Dean Pennala

Peter Mitchell Lyon

John G Fraser

Anil Shah

Scott Eeley

Arnold Kromberg

Thomas C Erickson

Michiel Jacques Van Nieuwstadt

Christopher Oberski

Norman Hiam Opolsky

David Chester Waskiewicz

Bradley Dane Gresens

Edwin Allen Krenz

A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.

Method and system for limiting output of a boosted engine

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 for operating a turbocharged engine is disclosed. In one example, an engine operation is adjusted in response to a turbocharger expansion ratio. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.

Methods and systems are provided for operating a fuel system in an engine, the fuel system including a supply pump for delivering fuel to the fuel system and pressurizing fuel received from a feed pump, a fuel tank, a fuel filter for filtering fuel, a fuel rail, and a fuel injector. One example method comprises, during an engine cold-start, operating the supply pump, and adjusting a supply pump operation mode between at least a pressure-controlled mode and a volume-controlled mode based on a fuel temperature and pressure.

Fuel system control

Methods for updating the PF soot load of an engine are provided herein. In one example, a soot storage estimate is based on processing operations that occur at different timings. The method can improve soot estimation during some conditions.

Determination of diesel particulate filter load under both transient and steady state drive cycles

Growing community of inventors

Saline, MI, United States of America

Gopal Krishna Chamarthi