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Autonomous Vehicle Engineering: March 2018

2018-03-08
Editorial Autonomy's data binge is more like a 5-course meal. Big Data, Big Challenges Cloud services and multiple partnerships are issues the mobility industry grapples with as data implications expand outside the vehicle. Reinventing the Automobile's Design The convergence of electric propulsion, Level 5 autonomy, and the advent of car-free urban zones, is driving new approaches to vehicle design and engineering. When Steering Isn't Steering Anymore High-level autonomy requires new thinking for even basic vehicle controls. Steer-by-wire technology eases some of the complexities automated driving presents-and offers desirable new possibilities. Autonomy and Electrification: A Perfect Match? Combining SAE Level 4/5 functionality and EV platforms brings chal-lenges-and opportunities for cost reduction and systems optimization. Who's Ahead in the Automated-Driving Race? The 2018 Navigant Research Leaderboard study brings interesting insights on the industry's progress.
Book

Proceedings for the Joint Conference: MFPT 2013 and ISA's 59th International Instrumentation Symposium

2013-05-13
The result of a combined effort between the Society for Machinery Failure Prevention Technology (MFPT) and the International Society of Automation (ISA), which held their conferences together in May, 2013, the proceedings are now are available in print format. Focusing on the theme of Sensors and Systems for Reliability, Safety and Affordability, the Joint Conference MFPT 2013 and ISA’s 59th International Instrumentation Symposium reflected the importance of sensing and condition management systems in lowering sustainment costs. The proceedings contain 33 technical papers chosen out of the 120 presented during the various sessions.
Book

Reinventing the Automobile

2010-03-01
This path breaking book provides a long overdue vision for a new automobile era. The cars we drive today follow the same underlying design principles as the Model Ts of a hundred years ago and the tail-finned sedans of fifty years ago. In the twenty-first century, cars are still made for twentieth-century purposes. They're well suited for conveying multiple passengers over long distances at high speeds, but inefficient for providing personal mobility within cities-where most of the world's people now live. William Mitchell and two industry experts re-imagine the automobile, describing vehicles of the near future that are green, smart, connected, and fun to drive. They roll out four big ideas that will make this both feasible and timely. First, we must transform the DNA of the automobile, basing it on electric-drive and wireless communication rather than on petroleum, the internal combustion engine, and stand-alone operation.
Book

Transport Revolutions

2008-01-01
This book sets out the challenges that will soon threaten modern society's dependence on low-cost transport in light of the problems posed by oil supply and climate change. It proposes organizational and technical innovations that could ensure effective, secure movement of people and goods in ways that minimize environmental impacts and make the best use of renewable sources of energy. The authors conclude that transport in the first half of the 21st century will feature at least two revolutions. One will involve the use of electric drives rather than internal combustion engines. The other will involve powering these drives directly from the electric grid rather than from on-board fuel. The authors also address revolutions in marine transport and aviation and analyze the politics and business of transport and how these will undergo profound change in the decades ahead.
Book

Lectures of the 32nd International Vienna Motor Symposium

2011-05-05
Proceedings from the 32nd International Vienna Motor Symposium now available through SAE International. One of the most prestigious conferences on engine development in the industry today, the International Vienna Motor Symposium, now in its 32nd year, gathers world renowned experts to discuss the current and future state of motor technology. According to Dr. Hans Peter Lenz, president of the Austrian Society of Automotive Engineers, who opened this year’s conference, markets are now in a better position to understand how internal combustion engines and electrified powertrains can actually complement each other. Presenters offered their input and experience in the development of new technologies enabling higher levels of fuel efficiency and power, longer range and a cleaner way for the mobility industry to move forward. The proceedings, available in two volumes and a CD, contain all the technical papers given during the meeting, both in English and in German.
Book

Toyota Technical Review 2010

2010-08-01
Giving unique insight into Toyota's 2010 technical developments, this book includes 19 papers that chronicle the Japanese OEM's R&D activities in a variety of technologies during that year. This volume takes a special look at the Prius, Toyota's popular hybrid, along with other technical innovations. Title highlights include: Prius Technology • Hybrid Technologies in the 3rd Generation Prius • Chassis Development for the 3rd Generation Prius • Design of the Prius as an Eco-Icon Other Technical Areas • Introduction of the World's First Rear Seat Occupant Restraint System for Rear-End Collisions • Development of Fuel Consumption Estimation Technology Using VHDL-AMS • Development of Electrode Structure for High Performance Fuel Cell Using CAE
Book

Toyota R&D Technical Review 2011

2011-08-01
Giving unique insight into Toyota's 2011 technical developments, this book includes 18 papers that chronicle the Japanese OEM's R&D activities in a variety of technologies during that year. This volume has a special focus on next-generation electric storage, and 10 of the papers highlight developments in such things as batteries, fuel cells and next-generation energy. Title highlights include: Next Generation Electric Storage and Its Applications • Secondary Battery Development for Hybrid Vehicles at Toyota • Development Trends and Popularization Trends for Fuel Cell Vehicles • Renewable Energy and Its Effective Usage Other Technical Areas • Drivetrain Development for the Lexus LFA • Development of Scratch-Resistant Universal Clear Coat • Development of Environmentally Friendly Machining Process for Aluminum Parts
Standard

Nomenclature & Definitions for Electrified Propulsion Aircraft

2019-02-28
WIP
ARP8676
Create and publish a list of terms relevant to electrified propulsion aircraft with summary text descriptions. The terms and description will not provide full explanations, diagrams, and other detailed technical descriptions. These deeper descriptions will be addressed in other documents.
Standard

Safety Considerations for Electrified Propulsion Aircraft

2019-04-02
WIP
ARP8677
This SAE Aerospace Recommended Practice (ARP) discusses particularities to be considered when performing the safety assessment of electrified propulsion aircraft. Its main focuses are: • The failure modes of electrified propulsion components • Methods to evaluate failure rates of electrified propulsion components • Effects of failures on example electrified propulsion system and aircraft architectures • Particular risks, common causes, and zonal considerations specific to electrified propulsion The guidance in this document may be used to generate inputs for system and aircraft safety assessment activities.
Standard

Architecture Examples for Electrified Propulsion Aircraft

2019-05-07
WIP
AIR8678
The application of electric power for aircraft propulsion can take a variety of forms, ranging from partial electric to full electric. The introduction of electric motors to drive propulsors, along with the variety of available methods to generate electricity and store energy offers great degree of new design freedom for new aircraft and aircraft architectures. This newfound design freedom exposes a need within the aviation industry to establish a common design language for electrified propulsion. While this need for a common design language is recognized, the intent of this document is to encourage innovation, providing reference architectures as a launching point for future work in this area. This document will categorize potential electrified propulsion architectures and provide examples.
Standard

Electric Drivetrain Fluids (EDF)

2019-04-24
WIP
J3200
This SAE Information Report is to assist those concerned with lubricants used in drivetrain components powered by electric powerplants. The information contained herein will be helpful in understanding the terms related to the properties of a lubricant used in electric drivetrains.
Standard

Compatibility of Turbine Lubricating Oils

2019-07-16
WIP
ARP7120
This method is used for determining the compatibility of a candidate lubricant with specific reference lubricants. The reference lubricants will typically be mandated by the product specification against which the candidate lubricant is being compared. This method is based on Federal Standard 791 method 3403 and Defence Standard 05-50 (Part 61) method 24, incorporating the modifications called for in SAE AS5780.
Book

Insight: Fuel Effiency: Fuel Economy Testing (DVD)

2015-04-15
"Spotlight on Design: Insight" features an in-depth look at the latest technology breakthroughs impacting mobility. Viewers are virtually taken to labs and research centers to learn how design engineers are enhancing product performance/reliability, reducing cost, improving quality, safety or environmental impact, and achieving regulatory compliance. As global concerns about the negative consequences of greenhouse gases on the environment increase, regulatory agencies around the world are taking serious steps to address the issue of tailpipe emissions In the episode "Fuel Efficiency: Fuel Economy Testing" (12:01), engineers at the EPA’s National Vehicle and Fuel Emissions Laboratory demonstrate how different vehicles are tested for emissions, and AVL’s technical team shows how accurate tailpipe emissions can be measured and reported.
Technical Paper

The Development of Plastic Lenses for Vehicle Headlamps

1996-04-01
91A111
The pending changes in European law enabling the use of plastic lenses on vehicle headlamps provide an opportunity for further advancement of vehicle styling, lighting performance and aerodynamic efficiency. Plastic lenses can also provide a useful weight saving and contribute to energy savings during the lifetime of the vehicle. This paper discusses the current requirements, technologies and solutions for plastic lenses, and indicates the way this advance can impact on the evolution of lighting products.
Technical Paper

Fe Model Adjustment of a Composite Material Car-Body By Means of Experimental Modal Analysis on the Prototype

1996-04-01
91A095
A procedure adopted to verify and update the finite elements model of an electric powered car-body manufactured from composite materials is described. Experimental results, obtained from modal testing of the prototype, are used in order to identify and correct discrepancies in the FE model. The availability of a highly reliable FE model allows to simulate structural modifications by computer, optimizing the use of composites and reducing in the same time at minimum prototypes construction. The approach followed suggests a possible remarkable reduction in product development costs and duration. The work has been performed within a larger program for the development of thermoplastic composite materials, with particular attention to transportation market.
Technical Paper

Optimisation of Diesel Engines Converted to High Compression Spark Ignition (SI) Natural Gas Operation

1988-03-01
871149
There is a strong interest around the world in natural gas as an alternative fuel. This paper is concerned with the option of converting diesel engines to spark ignition operation. Although this may appear to be an outrageous thermodynamic action, it is preferable to using natural gas in a low compression gasoline engine conversion. An investigation is described in which engine maps were produced for a 5.6 litre direct injection diesel engine converted to CNG. The diesel operating characteristics have been compared with those of the spark ignition conversion at compression ratios of 18:1 (the original diesel value), 15:1 and 13:1. Detailed data are presented for the 15:1 compression ratio. These test results are supplemented by results for other diesel conversions. The use of these engines in bus fleet operations is also discussed.
Technical Paper

Trends and Forecasts for Turbocharging

1988-03-01
871147
Predictable and unpredictable forces will change the direction of the charge-air systems industry. The driver of diesel engine development will be the stringent emissions regulations of the 1990s. The drivers in the gasoline engine market will be improved fuel economy, performance, durability and emissions. Forces will also influence the charge-air marketplace, including changes in emission standards, national fiscal policies, political issues, fuel prices, alternate fuels and consumer tastes. The world community mandate for engines that are clean, quiet, durable and fuel efficient will be satisfied, increasingly, by first-tier component suppliers developing integrated systems solutions.
Technical Paper

Performance and Exhaust Emission in Spark Ignition Engine Fueled with Methanol-Butane Mixture

1988-03-01
871165
To improve the cold startability of methanol, methanol-butane mixed fuel was experimented. Engine performance and exhaust emissions are obtained with methanol-butane mixed fuel. These characteristics are compared with those of methanol and gasoline. The mixing ratios of methanol and butane are 50:50 (M50), 80:20 (M80), and 90:10 (M90) based on the calorific value. As a result, M90 produces more power than gasoline and more or less than methanol depending on the engine speed and the excess air ratio. Brake horse power of M90 is higher than that of gasoline by 5 - 10 %, and brake specific fuel consumption is smaller than that of gasoline by 17 % to the maximum based on the calorific value. NOx emission concentrations for M90 are lower than those for gasoline and higher than those for methanol because of the effect of butane, CO emission concentrations are somewhat lower than those for methanol and gasoline.
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