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Study on Oil Consumption in Compact Motorcycle Engines

SUZUKI MOTOR CORPORATION-Taichi Kohno, Naoyuki Suda, Yoshinari Ninomiya
  • Technical Paper
  • 2019-32-0570
Published 2020-01-24 by Society of Automotive Engineers of Japan in Japan
Because the scooter is convenient, the market continues increasing. As a result of market survey, it was revealed that the scooter repeated sudden acceleration and deceleration. Therefore, the oil consumption may occur in special pattern. The oil consumption is an important development target. On the other hand, the oil consumption is complicated phenomenon. In this study, the sulfur trace method was used for measurement of the oil consumption. When a throttle was closed and the intake pipe became the negative pressure, the SO2 emission (oil consumption) increases. Then, using a glass cylinder and a high-speed camera, motion of the engine oil was observed. It was revealed that the engine oil rises to the combustion chamber after stopping at the 4th Land. By a combination of the sulfur trace test and the visualization test, oil consumption phenomenon of the scooter was able to be understood.
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Brake Pedal felling correlation with female shoe and feet position

(General Motors do Brasil)-Giorgia Buganza, Fernando Utyike, Fabio Raposo, Eduardo Godinho
  • Technical Paper
  • 2019-36-0015
Published 2020-01-13 by SAE International in United States
The female market share has increase every year, for some segments we have a majority of female buyers. Working with this tendency we work to understand the impact and the dislikes that we may be facing in the near future due to the costumer habits, and also understand what can be done to improve this relationship.This paper will discuss the feeling correlation between the foot position, heel point, drivers knee and the feeling of the brake pedal.We need to consider the difference between different shoe sole design and the impact on the point of force apply and angles resulting a costumer perception of the brake feeling of the vehicle.Based on Market research, math model studies and simulation, experiments done at the vehicle and measurements considering different situations we will show that the felling can be affected using different shoes and the brake performance perception can be also affected.We conclude the paper with the comments on what should be consider guaranteeing the best driver experience feeling.
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Design Parameters for Small Engines Based on Market Research

US Military Academy-Vikram Mittal
Published 2018-09-10 by SAE International in United States
Small internal combustion engines outperform batteries and fuel cells in regards to weight for a range of applications, including consumer products, marine vehicles, small manned ground vehicles, unmanned vehicles, and generators. The power ranges for these applications are typically between 1 kW and 10 kW. There are numerous technical challenges associated with engines producing power in this range resulting in low power density and high specific fuel consumption. As such, there is a large range of engine design solutions that are commercially available in this power range to overcome these technical challenges. A market survey was conducted of commercially available engines with power outputs less than 10 kW. The subsequent analysis highlights the trade-offs between power output, engine weight, and specific fuel consumption. These engines are analyzed to show the benefits and disadvantages of different engine design parameters including fuel type, number of strokes per cycle, number of cylinders, intake pressure, and cooling strategy. A Pareto frontier analysis is conducted to identify the top performing engines based on the output power and the total power…
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Orthopedic Replacement Implants Market: Drivers and Developments

  • Magazine Article
  • TBMG-32456
Published 2018-08-01 by Tech Briefs Media Group in United States

The global market for minor orthopedic replacement implants exceeded $1.5 billion in 2017. Analysts from The Business Research Company forecast the market value to grow at a rate of over 7 percent and to reach $2.2 billion in 2021 in their report “Minor Orthopedic Replacement Implants.”1 According to the report, the primary reason for this growth is the high incidence of arthritis and fractures. Osteoarthritis and rheumatoid arthritis are the major causes for joint replacement surgery, including minor orthopedic joints. The other cause for joint replacement surgery is failed previous joint replacement surgery. This article examines the trends that are driving this market, including a look at materials, regions, procedures, and regulatory developments that are shaping the future of orthopedic implants.

Disposables Lead the Way to Fighting HAIs, Preventing Errors

  • Magazine Article
  • TBMG-29750
Published 2018-07-01 by Tech Briefs Media Group in United States

A key driver of the medical disposables market is the desire to minimize the risk of healthcare-associated infections (HAIs). Healthcare providers are turning to disposable products as a safer alternative than reusable devices, which even if decontaminated properly, can still lead to infection. According to Grand View Research, “the emergence of this sector is attributed to the increased focus toward the use of single-use disposable products to prevent cross-contamination and infection in healthcare settings.” In addition to the growing awareness of the benefits of infection control, another key factor driving the market expansion is the growing need for healthcare assistance for an aging population.

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Introduction to Generic Open Architecture (GOA) Family of Documents

AS-2 Embedded Computing Systems Committee
  • Aerospace Standard
  • AIR5314A
  • Current
Published 2018-05-07 by SAE International in United States
The Generic Open Architecture (GOA) Framework family of documents is organized into sets. This is the introductory document for those sets. The GOA family of documents is intended to support the development of affordable systems through the use of open systems concepts. The GOA family of documents is intended to provide input for the systems engineering process. The documents are applicable to the analysis of existing architectures as well as the development of new system architectures using open systems concepts. The domain specific documents catalog appropriate interface standards and, along with the domain independent documents, define a technical architecture for an associated specific domain. In other words, they provide the “rules and regulations” (i.e., the “building codes”) to be used during the systems engineering process when developing a system architecture for use in that domain. Each domain specific set of documents includes recommended interface standards, rationale for those standards, and guidance in the application of those standards for a given analysis or development.
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Conceptualization and Implementation of a Scalable Powertrain, Modular Energy Storage and an Alternative Cooling System on a Student Concept Vehicle

BMW Group-Jochen Karg, Joerg Schulte, Julian Weber
Clemson University-Breno Schwambach, Johnell Brooks, Paul Venhovens, Kartik Bagga, Mitchell Beckman, William Copley, Andrej Ivanco, Casey Jenkins, Robert Knizek, Kyle Mattinson, Shayne McConomy, Lauren Mims, Bhoomika Narasimhan, Robert Prucka, Rohan Shrivastava, Dheemanth Uppalapati, Veera Aditya Yerra
Published 2018-04-03 by SAE International in United States
The Deep Orange program immerses automotive engineering students into the world of an OEM as part of their 2-year graduate education. In support of developing the program’s seventh vehicle concept, the students studied the sponsoring brand essence, conducted market research, and made a heuristic assessment of competitor vehicles. The upfront research lead to the definition of target customers and setting vehicle level targets that were broken down into requirements to develop various vehicle sub-systems.The powertrain team was challenged to develop a scalable propulsion concept enabled by a common vehicle architecture that allowed future customers to select (at the point of purchase) among various levels of electrification best suiting their needs and personal desires. Four different configurations were identified and developed: all-electric, two plug-in hybrid electric configurations, and an internal combustion engine only.The electrified powertrain comprises of an innovative thermal system using the structural rocker beams as heat exchangers, thereby eliminating the need for conventional radiators. Two cargo compartments (one at each end of the vehicle) were realized through efficient packaging of the electric units and…
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Software: Improving Risk Management in Medical Device Manufacturing

  • Magazine Article
  • TBMG-28519
Published 2018-03-01 by Tech Briefs Media Group in United States

In an industry where people's health and wellness are on the line, manufacturers can't afford to let risk go unaddressed. As the International Organization for Standardization (ISO) says, “safety and quality are nonnegotiable in the medical device industry.”

Core Competencies: Staying Competitive in the Medical Device Industry

  • Magazine Article
  • TBMG-27721
Published 2017-10-01 by Tech Briefs Media Group in United States

Staying competitive calls for medical equipment OEMs to constantly keep pace with the speed of innovation. Better medical treatment and care can be achieved with fast, accurate results from advanced imaging applications such as CT scanning and MRI that process and analyze large amounts of data, requiring developers to build devices that deliver ever-increasing computing performance. Supporting this demand, high-performance embedded computing platforms that use the latest faster and more efficient processors are essential in helping OEMs keep up with these enhanced performance requirements.

Advances in Hydrophilic and Hydrophobic Coatings for Medical Devices

  • Magazine Article
  • TBMG-27725
Published 2017-10-01 by Tech Briefs Media Group in United States

The medical device industry, driven by innovation and new technologies, has become one of the biggest markets in healthcare. The explosion in sophistication and application of devices makes it possible to help improve human health in ways that were unthinkable just a few years ago. Over the last decade, this unprecedented growth has resulted in the development of state-of-the-art health and medical instruments that range from simple tongue depressors and bedpans to complex programmable pacemakers with microchip technology and laser surgical devices.