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“Japanese Originality” is the theme of 2012 Toyota Technical Review, which brings twelve articles written by designers and engineers, about the creativity, inspiration and commitment to develop products that enchant their users. The book also brings eight additional articles, more technical in nature, that prove the results of original thinking applied to engineering excellence.
Giving unique insight into Toyota's 2009 technical developments, this book includes 24 papers that chronicle the Japanese OEM's R&D activities during that year. This volume has a special focus on automotive safety and ITS, and 12 of the papers highlight developments in those areas. Title highlights include: Safety and ITS • The Evolution of GOA for Crash Safety • Pre-Crash Safety: Autonomous Integrated Safety Technology • Assist System for Enhancing Driver Vision at Night Other Technical Areas • A Study on Friction Materials for Reducing Brake Squeal by Nanotechnology • Newly Developed AR Engine Series • Development of Bio-Based Plastics for Injection Molding
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
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
This technical paper collection will focus on ‘Advances in NOx Reduction Technology’. The topics covered will include: new materials for lean NOx traps (LNT) and Selective Catalytic Reduction (SCR); system integration and durability; advances in NOx catalyst substrates, novel reductants and mixing designs.
Mold designers and foundrymen spend a lot of time in developing molds without knowing exactly the phenomena which take place inside. Simulor, which has been used in an industrial environment for two years, offers the solution to make foundrymen understand what happens during the filling of the mold and the solidification of the part. Based on navier-stokes and heat transfer equations, simulor provides speed distribution and metal front evolution in the cavity and thermal map in the mold and the part. Some examples with different metals (cast iron, aluminum alloy) cast with various processes (sand or die casting, low pressure or gravity casting) will be given. This new tool will given foundrymen the opportunity to test the mold before having it machined and will also allow reduction in development delays.
Particulate reinforced aluminum composite is described and properties shown. Application of this material to specific components are discussed, and it is shown that significant progress has been achieved on the road to commercial automotive introduction.
Indirect squeeze casting technology is one of the most attractive fabrication techniques of near net shape components constituted by aluminum matrix composite (AMC) materials. AMCs reinforced with both continuous and discontinuous ceramic elements have been mainly produced by infiltration of porous preforms. Nevertheless, a further promising production route offered by this technique is given by the possibility to employ ingots of pre-reinforced aluminum alloys containing ceramic particles (silicon carbide or alumina); ingots are remelted and, under suitable operative conditions, high quality composite castings of simple and complex shape are produced by squeeze casting. The present paper describes the results of an extensive experimental work carried out by Alures-Centro Tecnico Porcessi on a pilot plant scale employing a vertical squeeze casting machine with a clamping force of 315 tons.
Ceramic composite materials have been intensively studied during the last years. Particles and whisker reinforcement have shown the simultaneous advantage to allow the preparation of composite materials by conventional processing and to lead, when under optimum conditions, to dramatic toughening and strengthening. Since wear resistance of brittle material have been shown to be related to both hardness and toughness, composite materials with improved were resistance have been developed for cutting tools or bearing applications. However the mechanism responsible for toughening is of major important for wear resistance effectiveness. We have therefore reviewed the main mechanisms before presenting some examples of composites materials for wear resistance applications.
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.
The paper review some recent efforts, made by the aluminum industry, towards the development of new advanced alloys for aerospace applications; unconventional production technologies and MMC occupy an outstanding position in this context. Raid solidification processes are currently used for obtaining advanced alloys and, among them, the powder metallurgy route is one of the most commonly applied, since it has reached a considerable level of maturity. Experimental results of PM materials are shown and discussed in order to appreciate the potentialities of this class of materials and some recent further progress is shown: the spray deposition approach (osprey process). After having described the main features of the osprey process, some results obtained at the Department of Aerospace Engineering of Pisa about the development of high strength Al-alloy and MMC obtained by means of the osprey process are shown.
In this paper, several detailed studies on the surface properties of coatings are explained in order to make function of surface modification become more effective. As surface coatings, eletroless nickel plating, organic thin film, nitriding and antireflection coating by ultra fine particles are examined. Discussion of optimum production conditions and surface conditions for each coating is introduced.
An overview of high strength thermoset and thermoplastic composites will provide a basis of comparison with exotic hybrid composites. A specific theoretical application for a very high strength unibody application will be presented and test results evaluated. A critical overview of immediate applications will be presented and evaluated. In conclusion, it will be suggested that a uniform standard of performance be established for the practical application's requirements for these materials
Many areas of the world are in various stages of development which frequently includes a rapid increase in the motor vehicle population. As a result, some areas are beginning to show the effect of increased motor vehicle use on air pollution. The vehicle's contribution to California's air pollution has long been recognized and studied, and measures have been implemented to reduce emissions from motor vehicles. The history of light duty vehicle emission control in the South Coast Air Basin of California is reviewed. Emission reductions achieved, current levels, projected future emissions and the need for further emissions reductions from light duty vehicles are discussed. For other areas of the world where motor vehicles contribute to air pollution, suggestions are made which can improve the effectiveness of emission control efforts; which should be consistent with political and economic realities, and efforts to achieve international harmonization of standards.
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.
An all-ceramic swirl chamber has been developed and analyses and evaluations concerning the strength of silicon nitride ceramic (Si3N4) have been performed with a view to using it for the entire internal wall surface of the swirl chamber. The strength characteristics of Si3N4 and their effect and variation have been determined. On the basis of measurements and analyses of thermal stresses, assembling stresses, etc., investigation of the most suitable construction and assembling methods to reduce load stresses on ceramic, and various kinds of duration tests, the swirl chamber has been confirmed to have the required durability. This engine was found to comply with the 1987 U.S. diesel particulate regulation.