Browse Topic: Fuel control

Items (47)

11/30/2020

This report is intended to identify the various existing technologies used for a fuel level sensing system. In addition to sensing technologies, it describes the basic architecture of fuel level sensing systems and their association with fuel gauging system to increase integrity of fuel measurement and management. As the fuel level sensing system is generally based on electrical components within fuel tanks, a specific focus is made on fuel tank explosion safety protection. An overview of the capacitive fuel gauging operation can be found in AIR5691.

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee

Fuel Level Point Sensing

AIR6325-TEST-REC (Historical)11/30/2020

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee

LEVER ENDS - FUEL AND POWER CONTROL

AS56D (Current)09/19/2018

E-25 General Standards for Aerospace and Propulsion Systems

ATTACHMENT POINTS, ENGINE, REMOTE TRIMMING MAIN FUEL CONTROL

AS848A (Current)02/12/2018

E-25 General Standards for Aerospace and Propulsion Systems

Adaptive Algorithm for Engine Air – Fuel Ratio Control with Dual Fuel Injection Systems

2017-01-0588

03/28/2017

Dual fuel injection systems, like PFI+DI (port fuel injection + direct injection system) are being increasingly used in gasoline engine applications to increase the engine performance, fuel efficiency and reduce emissions. At a given engine operating condition, the air/fuel error is a function of the fraction of fuel injected by each of the fuel systems. If the fraction of fuel from each of the fuel system is changed at a given operating condition, the fuel system error will change as well making it challenging to learn the fuel system errors. This paper aims at describing the adaptive fueling control algorithm to estimate the fuel error contribution from each individual fuel system. Considering the fuel injection system slope errors to be the significant cause for air-fuel errors, a model structure was developed to calculate the fuel system adaptive correction factor as a function of changing fraction of fueling between the fuel systems. A recursive least squares estimation strategy

Ranga, Adithya P Reddy, Surnilla, Gopichandra, Thomas, Joseph, Sanborn, Ethan, Linenberg, Mark

ATTACHMENT POINTS, ENGINE, REMOTE TRIMMING MAIN FUEL CONTROL

AS848 (Historical)

11/19/2012

E-25 General Standards for Aerospace and Propulsion Systems

Engine electronics come of age

OFHMAR05_0103/01/2005

Changes in global standards, combined with engineering know-how, have resulted in a new generation of clean, quiet, and efficient engines. Engine electronics have been around for some time. So has the driving force behind their development, according to Ed Handley, Manager of Engine Electronics, International Truck and Engine. Handley and another coworker “actually started engine electronics here at International Engine back in the ‘80s,” he said. “We began by introducing electronics to a 6.9-L V8 engine for Ford. Emissions was a big driver, but we were also interested in features and performance.” Emissions? The EPA didn't start regulating diesel emissions until it crafted Tier 1 requirements in 1994. The phase-in of those standards began in 1996. “Back in the ‘80s it wasn't so much NOx levels,” said Handley. “It was the smoke that comes out of the tailpipe. It just doesn't look good when you take off and there's a plume of smoke. So we were generally trying to resolve those kinds of

Ries, Richard

Engine Control System Architecture for Bi-Fuel Vehicles

2002-01-170305/06/2002

This paper describes a new architecture for a bi-fuel vehicle engine control system, which can reduce system cost while improving function. The proposed architecture uses a modified (dual parameter) PCM strategy to control operation on both fuels, with a simpler additional module to drive fuel injectors and interface to other alternative fuel components. It is shown that this architecture results in improved fuel control and lower tailpipe emissions compared to typical aftermarket systems. Impact on the development process and base vehicle wiring are minimized.

Dobryden, Allen, Kuechler, Peter, Lapetz, John

Considerations on Ice Formation in Aircraft Fuel Systems

AIR790B (Historical)

10/01/1999

This document suggests and summarizes points that should be considered with respect to the formation of ice in aircraft fuel systems. These summaries represent a cross-section of the opinions of fuel system designers and users.

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee