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2015-04-14
Technical Paper
2015-01-0723
Sebastian Bender, Raymond Khoo, Christoph Große, Felix M. Wunner, Heong Wah Ng, Markus Lienkamp
Abstract Upcoming stringent regulations on emissions and fuel efficiency are driving the automotive industry towards lightweight vehicle design. Thus, a higher share of carbon fiber composite materials in vehicle structures is expected. Current literature addresses development processes of composite components under a limited scope, however the considerations of design parameters used in these studies are inadequate for the realistic development of a full vehicle structure, especially in a resource-constrained development project. In addition, existing vehicle structure design philosophies applied for metal structures cannot be directly ported over for composite design due to differences in material properties, failure modes and design for manufacturing limitations.
2015-04-14
Technical Paper
2015-01-0972
Alexander Pawlowski, Derek Splitter
Abstract It is well known that spark ignited engine performance and efficiency is closely coupled to fuel octane number. The present work combines historical and recent trends in spark ignition engines to build a database of engine design, performance, and fuel octane requirements over the past 80 years. The database consists of engine compression ratio, required fuel octane number, peak mean effective pressure, specific output, and combined unadjusted fuel economy for passenger vehicles and light trucks. Recent trends in engine performance, efficiency, and fuel octane number requirement were used to develop correlations of fuel octane number utilization, performance, specific output. The results show that historically, engine compression ratio and specific output have been strongly coupled to fuel octane number.
2015-04-14
Technical Paper
2015-01-1255
Michael Pontoppidan, Jose G. C. Baeta
Abstract The paper presents a layout of a highly boosted Ethanol Direct Injected (EDI) engine with extreme downsizing, which represents a powerful means to reduce emissions at reduced production costs. The substitution of high-displacement engines (2.4- or 3.0-liter) by a downsized turbocharged EDI-engine is studied. The paper describes the detailed layout of all engine hardware and in particular, the cylinder head structure including the optimized intake and exhaust manifolds as well as implemented DI injectors. The paper continues with a presentation of the experimental data obtained at the engine test rig. The paper concludes presenting a series of experimental data obtained with the downsized engine mounted in a car as a replacement for its original high-displacement engine.
2015-04-14
Technical Paper
2015-01-1268
Tomohiro Shinagawa, Masahito Kudo, Wataru Matsubara, Takashi Kawai
Abstract Toyota Motor Corporation is developing a series of engines belonging to its ESTEC (Economy with Superior Thermal Efficient Combustion) development concept. This paper describes the development of 8NR-FTS after the subsequent launch of the 2.0-liter DI Turbocharged 8AR-FTS. 8NR-FTS is a 1.2-liter inline 4-cylinder spark ignition downsized turbocharged direct injection (DI) gasoline engine. By following the same basic concepts as 8AR-FTS engine [1], the 8NR-FTS incorporates various fuel efficient technologies such as a cylinder head with an integrated exhaust manifold, the Atkinson cycle using the center-spooled variable valve timing with mid-position lock system (VVT-iW), and intensified in-cylinder turbulence to achieve high-speed combustion.
2015-04-14
Journal Article
2015-01-1272
Jeffrey Jocsak, David White, Cedric Armand, Richard S. Davis
Abstract General Motors has developed an all-new Ecotec 1.5 L range extender engine for use in the 2016 next generation Voltec propulsion system. This engine is part of a new Ecotec family of small displacement gasoline engines introduced in the 2015 model year. Major enhancements over the range extender engine in the current generation Voltec propulsion system include the adoption of direct injection (DI), cooled external exhaust gas recirculation (EGR), and a high 12.5:1 geometric compression ratio (CR). Additional enhancements include the adoption of high-authority phasers on both the intake and exhaust camshafts, and an integrated exhaust manifold (IEM). The combination of DI with cooled EGR has enabled significant thermal efficiency gains over the 1.4 L range extender engine in the current generation Voltec propulsion system at high engine loads.
2015-04-14
Journal Article
2015-01-0783
Raphael Gukelberger, Jess Gingrich, Terrence Alger, Steven Almaraz, Bradley Denton
Abstract The ongoing pursuit of improved engine efficiency and emissions are driving gasoline low-pressure loop EGR systems into production around the globe. To minimize inevitable downsides of cooled EGR while maintaining its advantages, the Dedicated EGR (D-EGR®) engine was developed. The core of the D-EGR engine development focused on a unique concept that combines the efficiency improvements associated with recirculated exhaust gas and the efficiency improvements associated with fuel reformation. To outline the differences of the new engine concept with a conventional low-pressure loop (LPL) EGR setup, a turbocharged 2.0 L PFI engine was modified to operate in both modes and also compared to the baseline. The first part of the cooled EGR engine concept comparison investigates efficiency, emissions, combustion stability, and robustness at throttled part load conditions.
2015-04-14
Technical Paper
2015-01-0160
Ingo Stürmer, Elke Salecker
Model-based software development is a well-established software development process and recognized by ISO26262 [1] as allowing for highly consistent and efficient development. Nevertheless, enhancing a model-based development process in such a way that it is compliant with the ISO26262 safety standard is a challenging task. To achieve ISO26262 compliance, the development team of a safety-related software project faces a multitude of additional requirements for the development process without a corresponding increase of the project budget to fulfill them. The fact that many of the requirements of ISO26262 are defined in a very generic way such that an interpretation is required further hampers their implementation. We propose a 10-step strategy to achieve an ISO26262 compliant model-based software development process. This strategy relates ISO26262 requirements with state-of-the art methods and approaches currently used for model-based software development.
2015-04-13
WIP Standard
AS5726B
This standard only defines interconnect, electrical and logical (functional) requirements for the interface between a Micro Munition and the Host. The physical and mechanical interface between the Micro Munition and Host is undefined. Individual programs will define the relevant requirements for physical and mechanical interfaces in the Interface Control Document (ICD) or system specifications. It is acknowledged that this does not guarantee full interoperability of Interface for Micro Munitions (IMM) interfaces until further standardization is achieved.
2015-04-09
Article
Honda’s next-generation Civic will debut a sporty new design language, more efficient and spirited powertrains—and serve as the lead application for Honda’s new Global Compact platform that will also underpin the next-generation Accord as well as the HR-V crossover.
2015-04-09
Standard
J1538_201504
The terms included in the Glossary are general in nature and may not apply to all manufacturers' systems. All terms in Section 3 apply to automotive inflatable restraint systems in general which are initiated by an electric or mechanical stimulus upon receipt of a signal from a sensor. These terms are intended to reflect existing designs and the Glossary will be updated as information on other types of systems becomes available. Appendix A is included to identify terminology that is no longer in common use or specifically applicable to inflatable restraint systems, but was published in the December 2001 version of SAE J1538.
2015-04-07
Magazine
GM's CTO driving new paths to technology leadership 'We're making actual production commitments regarding our advanced-technology strategy, rather than just talking about it,' says GM's CTO Jon Lauckner. 'We're absolutely going to be among the leaders, if not the leader, in these areas.' Aluminum prepares for its next big leap Ford's F-Series blockbuster was just the beginning. New micromills now in pilot phase aim to bring vastly stronger and more formable light-alloy materials at higher capacity, says Alcoa's Mike Murphy. Slick solutions for friction reduction From new lubricants to 'smart' oil pumps and clever bearing technologies, engine designers are attacking every potential source of spin losses and internal friction in the quest for more mechanical work out of less fuel. Next-gen NSX: a twin-turbo, multi-material Ferrari-fighter The production NSX made its much-awaited global debut at NAIAS in January.
2015-04-06
WIP Standard
AS6081A
This SAE Aerospace Standard standardizes practices to: a. identify reliable sources to procure parts, b. assess and mitigate risk of distributing fraudulent/counterfeit parts, c. control suspect or confirmed fraudulent/counterfeit parts, d. and report suspect and confirmed fraudulent/counterfeit parts to other potential users and Authority Having Jurisdiction.
2015-04-01
Magazine
Deep thinking about deep space NASA is mining the rich fields of knowledge and creativity in the minds of university students to improve living and working conditions in space. Rise of the underdogs Problem-plagued effort last year spurs Baja SAE team from VIT University of India to overhaul itself and its car. Materials, data-aq packages among choices touted in Collegiate Cup contest Central Michigan's Baja team, which did some impressive materials analyses, takes home the SAE Mid-Michigan Section's trophy as part of that professional group's Engineers Week activities. Toyota looks for more from college students than high GPA "Those that participate in an SAE related-activity display passion for the automotive industry, and these candidates are ideal for our organization."
2015-03-30
Technical Paper
2015-01-0094
Supakit Rooppakhun, Pornporm Boonporm, Worawat Puangcha-um
Abstract In this study, the method of analyzing the thin-wall crashing box of impact attenuator for student formula is proposed by the means of simulation and validation following Formula Society of Automotive Engineers-SAE rules. The analysis was performed based on computerized simulation software for calculated the absorption capacity of the simple and multiple cell of thin-walled tubes. The effect of thin-wall thickness consisted of 1.2 mm, 1.6 mm and 2.0 mm was also evaluated. The simulation results as energy absorption, crashing force efficiency, and absorbed energy per unit mass were identified among nine patterns. According to the results, the increase of interior cell number and the wall thickness contribute the absorbed energy ability. However, the increment of wall thickness lead to the increase of crashing force magnitude. Regarding the kinetic energy, a 2×2 multiple cell box with the thickness of 2 mm is designated for construction and verify.
2015-03-27
Standard
J2129_201503
This SAE Information Report lists the method which outside sources will follow when submitting documents for origination or review by the SAE CONAG Council.
2015-03-27
Standard
J1254_201503
This SAE Standard includes names of major components and parts peculiar to this type of machine. Illustrations used here are not intended to include all existing commercial machines or be exactly descriptive of any particular machine. They have been provided to describe the principles to be used in applying this document.
2015-03-24
WIP Standard
J3092
The purpose of this document is to provide information and guidelines for use by automotive designers, test engineers and policymakers with…
2015-03-12
Standard
AS9016A
The aviation, space, and defense industries rely on the development and manufacture of complex products comprised of multiple systems, subsystems, and components each designed by individual designers (design activities) at various levels within the supply chain. Each design activity controls various aspects of the configuration and specifications related to the product. When a change to design information is requested or required, the change has to be evaluated against the impacts to the higher-level system. Proposed changes to design information that the design activity identifies to be minor and have no effect on their product requirements or specifications have the potential to be concurrently implemented and approved, where authorized to do so. Changes that affect customer mandated requirements or specifications must be approved prior to implementation.
2015-03-11
Article
Collaborative projects between OEMs can be surprising, as evidenced by the Daimler and Renault-Nissan link and its latest A-segment products — said to be the first of more joint developments.
2015-03-10
Technical Paper
2015-01-0073
Hayden Charles Smith, Sam Paterson, Clara Mazzone, Sammy Diasinos, Graham Doig
Abstract The Sunswift Solar Car project has been running at UNSW Australia in Sydney for 20 years as of 2015. It is an entirely student-run endeavour which revolves around the design and development of a solar/electric vehicle nominally designed to compete in the World Solar Challenge rally from Darwin to Adelaide every 2 years. The student cohort is drawn from a range of schools, disciplines and backgrounds, and the team has been increasingly successful and high-profile particularly in its second decade. The excellent level of hands-on training that the project provides to students is not rewarded with academic credit yet many of the alumni credit the project with launching their careers and ambitions. The team's world record-breaking latest vehicle, eVe, is the fifth constructed and presents a radical departure from previous cars in that it carries a passenger in a conventional layout and is based around a road-going sports car.
2015-03-05
Book
This valuable resource lists all Aerospace Standards (AS), Aerospace Recommended Practices (ARP), Aerospace Information Reports (AIR), and Aerospace Resource Documents (ARD) published by SAE. Each listing includes title, subject, document number, key words, new and revised documents, and DODISS-adopted documents. AMS Index - Now Available!
2015-02-26
WIP Standard
AS6171/5
The intent of this document is to define the methodology for suspect parts inspection using radiological inspection. The purpose of radiology for suspect counterfeit part inspection is to detect deliberate misrepresentation of a part, either at the part distributor or OEM level. Radiological inspection can also potentially detect unintentional damage to the part resulting from improper removal of part from assemblies, which may include, but not limited to, prolonged elevated temperature exposure during desoldering operations or mechanical stresses during removal. Radiological inspection of electronics includes film radiography and filmless radiography such as digital radiography (DR), real time radiography (RTR), and computed tomography (CT). Radiology is an important tool used in part authentication of microelectronic devices. Radiographic analysis is performed on parts to verify that the internal package or die construction is consistent with an exemplar item.
2015-02-26
WIP Standard
AS6171/2
This documenet describes the requirements of the following test methods for counterfeit detection of electronic components; General External Visual Inspection (EVI), Detailed External Visual Inspection, Remarking and Resurfacing, Lead Finish Analysis, SEM Surface Analysis.
2015-02-26
WIP Standard
AS6171/6
Through the use of ultra-high frequency ultrasound, typically above 10 MHz, Acoustic Microscopy (AM) non-destructively finds and characterizes physical features and latent defects (visualization of interior features in a layer by layer process) — such as material continuity, sub-surface flaws, cracks, voids, delaminations and porosity. AM observed features and defects can be indicators that the components were improperly handled, stored, altered or previously used.
2015-02-26
WIP Standard
AS6171/1
This document describes an evaluation method which measures the effectiveness of a specified test plan used to screen for counterfeit parts. The method includes the determination of the types of defects detected using a specified test plan along with the related counterfeit type coverage. The output of this evaluation will produce the counterfeit defect coverage (CDC), the not-covered defects (NCD), the under-covered defects (UCD), and the counterfeit type coverage (CTC). This information will be supplied to the test laboratory’s customer in both the test report and the Certificate of Quality Conformance. This evaluation method does not address the effectiveness of detecting tampered type devices.
2015-02-26
WIP Standard
AS6171/3
XRF technique for counterfeit detection is applicable to electronic and other parts as listed in the AS6171 General Requirements. In general, the detection technique is meant for use on piece parts prior to assembly on a circuit board or on the parts that are removed from a circuit board. The applicability spans a large swath of active, passive and electromechanical parts.
2015-02-26
Standard
J1272_201502
This SAE Standard is intended to describe the basic types of felling heads, including those with bunching capabilities, that are attachments to a self-propelled machine. Only the major components that are necessary to describe the functions to the felling head, and to apply the principles of the recommended practice are included. Illustrations used are not intended to include all existing felling heads or to describe any particular manufacturer's variation.
2015-02-26
WIP Standard
AS6171/9
This document defines capabilities and limitations of FTIR as it pertains to counterfeit electronic component detection and suggests possible applications to these ends. Additionally, this document outlines requirements associated with the application of FTIR including: operator training, sample preparation, various sampling techniques, data interpretation, computerized spectral matching including pass/fail criteria, equipment maintenance, and reporting of data. The discussion is primarily aimed at analyses performed in the mid-infrared (IR) from 400 to 4000 wavenumbers; however, many of the concepts are applicable to the near and far IR.
2015-02-26
WIP Standard
AS6171/7
The scope of this document is to: 1. Specify techniques to detect suspect SFC parts using electrical testing. 2. Provide various levels of electrical testing that can be used by end user to define test plans for detecting SFC parts. 3. Provide guidelines to end users for determining which test houses have the necessary capabilities. (i.e., equipment, procedures and protocols) for performing electrical testing for authenticity analysis.
2015-02-26
WIP Standard
AS6171/8
To define capabilities and limitations of Raman spectroscopy as it pertains to counterfeit detection of EEE parts and suggest possible applications to these ends. Additionally, this document outlines requirements associated with the application of Raman spectroscopy including: Operator training; Sample preparation; Data interpretation; Computerized spectral matching including pass/fail criteria; Equipment maintenance and; Reporting of data.
Viewing 61 to 90 of 13121

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