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2015-06-22
Event
This session addresses a variety of subjects covering the historical development and evolution of NVH practices, unlike the other sessions which focus on specific areas of noise and vibration technology. These papers are from the more experienced practitioners of vehicle noise and vibration who will share with attendees their thoughts, concerns, and hopefully their wisdom, gained through many years of engineering practice.
2015-04-23
Event
Business Modeling/Operation Research/Big Data Analytics are some of the key enablers for the next wave of innovation and growth across most industries. These technologies will address complex issues and systems that involve multiple objective, many alternatives, trade-offs between competing effects, large amounts of data and situations involving uncertainty or risk. This session will address new technical advances in these areas and provide valuable insights through the applications of real-world case studies.
2015-04-23
Event
2015-04-23
Event
Business Modeling/Operation Research/Big Data Analytics are some of the key enablers for the next wave of innovation and growth across most industries. These technologies will address complex issues and systems that involve multiple objective, many alternatives, trade-offs between competing effects, large amounts of data and situations involving uncertainty or risk. This session will address new technical advances in these areas and provide valuable insights through the applications of real-world case studies.
2015-04-21
Event
2015-04-21
Event
2015-04-21
Event
The papers presented in the 2015 MHC Session are varied and range from Porsche's early work in the military and Arkus-Duntov's original efforts with Corvette, to the development thread in Lightweighting and a study of the light but strong products of the Rochdale car company (cf. Lotus Elite). The MHC approach is that the teachings of the past are foundational in supporting the efforts of the current engineering community: "understanding the history clarifies the present and guides the future."
2015-04-21
Event
The papers presented in the 2015 MHC Session are varied and range from Porsche's early work in the military and Arkus-Duntov's original efforts with Corvette, to the development thread in Lightweighting and a study of the light but strong products of the Rochdale car company (cf. Lotus Elite). The MHC approach is that the teachings of the past are foundational in supporting the efforts of the current engineering community: "understanding the history clarifies the present and guides the future."
2015-04-21
Event
2015-04-14
Technical Paper
2015-01-0416
Howard Evans
This paper will cover the history and products of the UK based Rochdale marque from the 1950s to the 1970s.
2015-04-14
Technical Paper
2015-01-0464
Christian-Andreas Schumann, Eric Forkel, Thomas Klein, Dieter Gerlach, Egon Mueller
Total quality is becoming increasingly important for competitiveness. In order to achieve high quality, the requirements must be continuously compared with the results achieved in the process. This is done by means of measurement parameters and comparative values. The acquisition of the data requires appropriate measurement methods. The measurement methods and procedures have to be constantly developed in order to measure more precisely and to generate an even higher quality. Thus, the achieved product quality can be determined absolutely and relatively. If deviations from the planned quality parameters occur, the operator will be able to intervene immediately. The presented procedure is one of the non-contact (optical) measurement methods using CMMs, 3D scanners and 3D cameras. It is a combination of stereo photography and photogrammetry.
2015-04-14
Technical Paper
2015-01-0247
Sonakshi Sharma, Shubhranshu Garg, Vipul Kumar, Sudhir Kashinath Gupte
There are variety of motors and generators/alternators being manufactured internationally, for variety of applications. It is a difficult task for the user to identify and select the type of motor /generator/alternator for a specific use, by the designer and ultimately the user is totally unaware of what is bought and why. There is a need to designate the motors and generators so that by interpretation of the identification nomenclature of the motor or generator it can be judged that what type it is, whether a series motor, an induction motor etc, in case of motors. This will eventually make it easy for the manufacturer, the buyer and the consumer to identify the motor or generator type. So a universally accepted and followed identification nomenclature is required to be developed which will henceforth make dealing in motors and generators simpler. It will prove to be useful during troubleshooting.
2015-04-14
Technical Paper
2015-01-0463
Kasiraja Thangapandian, Immanuel Rajkumar
In automotive embedded software developments, as the software functionality are added based on the user preference and technology growth. The software logic were added to the legacy code and the functionality is being visualized. Due to the complexity added to the software, there are chance of introducing a defect to the existing piece of code which makes the functionality to improperly function. In this paper, we will discuss how embedded software projects were developed across globally and how the data is collected. Based on the data collection and applying the statistical method to identify the exact root cause of the problem from injection standpoint, subsequently from escape by review method and testing. By applying the Lean six sigma methodology and Big data analytic method to analyses the data collected, based on analysis performed for data pattern continuous improvement actions were derived.
2015-04-14
Technical Paper
2015-01-0972
Alexander Pawlowski, Derek Splitter
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 70 years. The database consists of engine compression ratio, required fuel octane number, peak mean effective pressure, specific output, and combined 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, and theoretical Otto cycle engine efficiency. The results show that historically, engine compression ratio, performance, and efficiency have been strongly coupled to fuel octane number.
2015-04-14
Technical Paper
2015-01-0157
M Abu Anas Shuvom, M Zahurul Haq
As combustion can vary widely between engine cycles if left uncontrolled, strict and robust control is required to meet optimum performance at different operating conditions. In this research, intelligent control techniques implemented on a Gasoline Direct Compression Injection (GDCI/GDI) engine. A research four cylinder 2.0 L GDI engine is modeled with optimal control hardware that is frequently called as the conceptual Cybernetic intelligent GDI or ‘iGDI’ engine. The engine features Free Variable Valve Timing and Lift (FVVTL) hardware and precision fuel injector connected directly to the engine cylinder found assistive for control flexibility with technical assessments. Then a mechatronic neural control approach is proposed and discussed with adaptive control techniques. Adaptive and predictive neural network control architectures are discussed on two distinct plant operation modes.
2015-04-14
Technical Paper
2015-01-0461
Dennis Craggs
Analyze vehicle usage parameters with distribution free methods. Engineers are familiar with displaying vehicle data with interval count or percentile histograms. A cumulative time or mileage based histogram provides a direct visual means of characterizing the vehicle history. Combining the histograms from many vehicles results in a complex virtually unreadable plot. An alternative approach is to determine the 5%, median, and 95% usage and plot as a cumulative histogram . These provide design engineers with useful information to develop validation tests.
2015-04-14
Journal Article
2015-01-0460
Saket Kansara, Sumeet Parashar, Zhendan Xue
Increased sophistication of engineering simulation tools, availability of computing power and demand for optimization is steering engineers towards multi-objective and multi-disciplinary formulation. It is becoming common to see problem setup with hundreds of input parameters, many objective functions and constraints. While modern optimization algorithms and software tools are able to handle large scale problems and generate even larger datasets, it is a challenge to analyze such large data sets and make effective decisions. Decision making is especially challenging when one has multiple objectives of conflicting nature. Pareto frontier solutions for two or three objective space are easy to visualize and comprehend, however, as the number of objectives increase, it becomes more and more difficult to understand and analyze trade-offs from the results coming out of optimization.
2015-04-14
Journal Article
2015-01-0468
Mingxian Wang, Wei Chen, Yan Fu, Yong Yang
Being the world’s largest auto producer and consumer, China is becoming the most promising but complex market given the country’s rapid economic growth, huge population, and many regional and segment preference differences. This research is aimed at developing data-driven demand models for customer preference analysis and prediction under a competitive market environment. Regional analysis is first used to understand the impact of geographical factors on customer preference. Advanced multivariate analysis techniques are then employed to reduce a set of survey responses to key measures of customer preference. Finally, a new network analysis approach is proposed to model customer cross-shopping behavior that can inform the firm about the implied market structure and product competitive positioning. Our proposed approach is demonstrated by using a rich set of market data collected in China.
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.
2015-02-25
Video
By highlighting the legacy of innovation at Boeing, this video showcases the passion of Boeing people and the remarkable products they continue to build everyday.
2015-02-18
Standard
J1939/84_201502
The purpose of this Recommended Practice is to verify that vehicles and/or components are capable of communicating a required set of information, in accordance with the diagnostic messages specified in SAE J1939-73, to fulfill the off-board diagnostic tool interface requirements contained in the government regulations cited below. This document describes the tests, methods, and results for verifying diagnostic communications from an off board diagnostic tool (i.e., scan tool) to a vehicle and/or component. SAE members have generated this document to serve as a guide for testing vehicles for compliance with ARB and other requirements for emissions-related on-board diagnostic (OBD) functions for heavy duty engines used in medium and heavy duty vehicles. The development of HD OBD regulations by US EPA and California’s Air Resources Board (ARB) require that diagnostic message services are exercised to evaluate diagnostic communication standardization requirements on production vehicles.
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