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Development and Validation of a Control-Oriented Analytic Engine Simulator

FERRARI S.p.A.-Matteo Cucchi, Nicola Silvestri
University of Bologna-Alessandro Brusa, Nicolo Cavina, Nahuel Rojo
  • Technical Paper
  • 2019-24-0002
To be published on 2019-08-15 by SAE International in United States
Due to the recent anti-pollution policies, the performance increase in Spark Ignition (SI) engines is currently under the focus of automotive manufacturers. This trend drives the control systems designers to investigate accurate solutions and build more sophisticated algorithms to increase the efficiency of this kind of engines. The development of a control strategy is composed by several phases and steps, and the first part of such process is typically spent to define and validate the logic of the strategy. During this phase a light engine simulator is particularly useful, since it allows producing robust combustion synthetic data with a low calibration and computational effort. In the first part of this paper the description of a control-oriented analytic engine simulator (ANESIM) is carried out. The latest results about the zero-dimensional knock model presented in a previous paper and some interesting analytical equations that define the main mean combustion indexes trend (like the maximum in-cylinder pressure, the MFB50, the Indicated Mean Effective Pressure) as functions of the engine speed and load are analyzed for the entire engine…
 
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Fittings, Axially Swaged Tube with Flareless Separable, Fluid System for Operating Pressures up to and Including 5080 psi (35000 kPa), Specification for

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS5958G
  • Current
Published 2019-06-10 by SAE International in United States

This SAE Aerospace Standard (AS) establishes the requirements for externally swaged titanium tube fittings on titanium and CRES tubing with flareless separable fitting for use in hydraulic supply and return aerospace fluid systems up to operating pressure of 5080 psig (35 000 kPa) maximum and an operating temperature range of -65 to +275 °F (-54 to +135 °C).

 
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Fitting Assembly, Cap, Flareless

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS5233B
  • Current
Published 2019-05-23 by SAE International in United States

Scope is unavailable.

 
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Fitting, Lubrication, Hydraulic, Surface Check, Straight Threads, Steel, Type II

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS15002D
  • Current
Published 2019-05-20 by SAE International in United States

Scope is unavailable.

 
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Fitting, Tee, Standard and Reducer, Bulkhead on Run, Internal Port on Run, Flared

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS1032G
  • Current
Published 2019-05-20 by SAE International in United States

Scope is unavailable.

 

Aircraft Flexible Tanks General Design and Installation Recommendations

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee
  • Aerospace Standard
  • AIR1664A
  • Current
Published 2019-05-07 by SAE International in United States
This SAE Aerospace Information Report (AIR) includes general information about the various types and styles of flexible tanks and the tank-mounted fittings that adapt the tank to the surrounding structure and fluid-system plumbing. Recommendations are given relative to the dimensional layout of the tank when these recommendations serve to avoid tank fabrication problems and tank/structure interface problems. As a part of these recommendations, critical dimensions of plumbing adapter fittings are discussed and recommendations made. Tank manufacturing tolerances are given. Recommendations are made relative to cavity design and preparation to facilitate a reliable installation. The special installation requirements of nonself-sealing, self-sealing, and crash-resistant tanks are discussed. This document is not intended to replace the information or requirements of the military and commercial procurement specifications listed in Section 2. No attempt has been made, except in a very general way, to include physical property data such as weight and thickness of the composite materials available in the industry. Such materials are too numerous and vary too much between manufacturers. Whenever specific data or advice is required, it…
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Standard Words for Test Paragraphs for Tube Fittings and Tube Assemblies

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AIR1378C
  • Current
Published 2019-04-30 by SAE International in United States

This Aerospace Information Report (AIR) is written as a guide for the wording recommended for use, when applicable, in design and procurement specifications for tube fittings and tube assemblies, both for general aerospace fluid power applications and for specific applications.

 

Coupling Assemblies, Quick Disconnect, Automatic Shutoff

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS7413A
  • Current
Published 2019-04-23 by SAE International in United States
This specification establishes requirements for automatic shutoff, quick-disconnect coupling assemblies for fuel and oil lines.
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Flexure Testing of Hydraulic Tubing Joints and Fittings

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • ARP1185C
  • Current
Published 2019-04-23 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) establishes flexure test procedures to determine and classify the fatigue strengths of reconnectable or permanent hydraulic tube joints. The procedure is intended for conducting flexure tests of fittings and joints for hydraulic tubing materials such as AMS 5561 (21Cr-6Ni-9Mn) steel or AMS 4944 (3AL-2.5V) titanium. A mean stress is applied by holding system pressure in the specimens and flexing in a rotary or planar bending test machine.
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HOSE ASSEMBLY, POLYTETRAFLUORETHYLENE, PARA ARAMID REINFORCED, 275 °F, 4000 MAX PSI, FLARELESS, TITANIUM FITTINGS, STRAIGHT TO STRAIGHT

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS6013B
  • Current
Published 2019-04-17 by SAE International in United States
No Abstract Available.
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