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Technical Paper

04Road Feel Feedback Design for Vehicle Steer-by-Wire via Electric Power Steering

2013-11-27
2013-01-2898
A new road feel feedback control design of steer-by-wire (SBW) is proposed, which is produce the steering feel of conventional vehicle with equipped electronic power steering (EPS) system, due to SBW system removes mechanical linkages between steering system and front wheels. A dynamic model is established to study the road feel generation and deal with the need of computed rack force of steer system. Based on the analysis of the assisting characteristic and the active damping control strategy of the EPS system, an integrated road feel algorithm is proposed. For rack force is difficult to measure, an estimator is presented to estimate rack force by Kalman filter (KF). The hardware-in-the-loop simulation (HILS) test bench results show that the proposed road feel control design make drivers get road feel information and SBW system can improve the vehicle maneuverability and comfortably.
Journal Article

1-D+1-D PEM Fuel Cell Stack Model for Advanced Hardware-in-the-Loop Applications

2015-09-01
2015-01-1779
As part of a system model, a PEM fuel cell stack model is presented for functional tests and pre-calibration of control units on hardware-in-the-loop (HiL) test benches. From the basic idea to couple a 1-D membrane model with a spatially distributed abstraction of the gas channel, a real-time capable 1-D+1-D PEM FC stack model is constructed. Fundament for the HiL usage is an explicit formulation of the commonly implicit model equations. With that, not only calculation time can be reduced, but also model accuracy is preserved. A validation using test bench data emphasizes the accuracy of the model. Finally, a runtime and eigenvalue analysis of the stack model proves the real-time capability.
Technical Paper

11 Rules of Design for Manufacturing when Producing Pre-Impregnated Carbon Fiber-Reinforced Plastic Components - an Application at SAAB Aerostructures

2016-09-27
2016-01-2124
Carbon fiber-reinforced plastic (CFRP) is one of the most commonly used materials in the aerospace industry today. CFRP in pre-impregnated form is an anisotropic material whose properties can be controlled to a high level by the designer. Sometimes, these properties make the material hard to predict with regards to how the geometry affects manufacturing aspects. This paper describes eleven design rules originating from different guidelines that describe geometrical design choices and deals with manufacturability problems that are connected to them, why they are connected and how they can be minimized or avoided. Examples of design choices dealt with in the rules include double curvature shapes, assembly of uncured CFRP components and access for non-destructive testing (NDT). To verify the technical content and ensure practicability, the rules were developed by, inter alia, studying literature and performing case studies at SAAB Aerostructures.
Technical Paper

135 Days in Isolation and Confinement: The Hubes Simulation

1995-07-01
951512
The EUROMIR-95 flight was selected as model for the HUBES experiment: a similar duration (135 days), a similar crew (3 men), similar schedule organisation (8 hours work, 8 hours sleep, 8 hours off-duties), similar workload for the crew and the mission control (performance of scientific experiments), similar setup for communication and data processing, and similar layout of the MIR station, as the simulation was performed in the MIR simulator located at the Institute for BioMedical Problems (IBMP) in Moscow. The Scientific Programme of HUBES had been elaborated by integration of 31 experiments from more than 80 research proposals from Principal Investigators from Europe, USA and Russia, in domains of Physiology, Psychology, Operations and Technology.
Technical Paper

1980 Mini-Baja East

1980-09-01
800955
For the engineering students involved, the Mini-Baja competition is demanding, yet rewarding. It provides in microcosm professional project experience characteristic of contemporary industrial practice. In this paper, the competition is described, the vehicles themselves are discussed, and some helpful hints for future hosts are given.
Technical Paper

1998 POLARIS INDY TRAIL: An Entry by Minnesota State University, Mankato in the “Clean Snowmobile Challenge 2000”

2000-09-11
2000-01-2574
A student team from Minnesota State University, Mankato's Automotive Engineering Technology program entered the Clean Snowmobile Challenge 2000. A 1998 Polaris Indy Trail was converted to indirect fuel injection running on a computer controlled closed loop fuel system. Also chassis, exhaust, and hood design modifications were made. The snowmobile was designed to compete in eight events. These events included acceleration, emissions, hill climb, cold start, noise, fuel economy/range, handling/driveability, and static display. The snowmobile modifications involved every aspect of the snowmobile with special emphasis on emissions and noise. Laboratory testing led to the final design. This paper details the modifications and test results.
Technical Paper

20 Years of UNSW Australia's Sunswift Solar Car Team: A New Moment in the Sun, but Where to Next?

2015-03-10
2015-01-0073
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.
Technical Paper

2002 Joint EPA/SAE-ESSC Workshop Environmental Systems Decision Making

2003-03-03
2003-01-0549
This is a report of a workshop held in mid-August of 2002 at Northwestern University, Evanston, Illinois, to explore what it takes to make a decision regarding environmental systems in the US. The participants in the workshop represented federal government, industry, non-governmental organizations and academia. During the two and a half day workshop, discussions were held on the policy drivers, the strategies and tactics (through a SWOT analysis), the decisions the automotive industry is facing today and the tools available to support decision making.
Book

2009 Ultimate GD&T Pocket Guide 2nd Ed

2017-03-27
The Ultimate GD&T Pocket Guide explains the most common rules, symbols, and concepts used in geometric dimensioning and tolerancing. ...This one-of-a-kind reference guide includes over 100 detailed drawings to illustrate concepts, more than 40 charts for quick reference, explanations of each GD&T symbol and modifier and much more...Written by standards expert Alex Krulikowski, this valuable on-the-job reference clarifies how to interpret standard-compliant technical drawings that use ASME Y14.5-2009.
Book

2016 Mobility Engineering Professionals Salary Survey

2016-07-14
EXCLUSIVE MEMBER BENEFIT: 2016 MOBILITY ENGINEERING PROFESSIONAL SALARY SURVEY AND CALCULATOR Gain better insight into compensation practices: this salary survey is the only study its kind to explore levels and changes in compensation and employment for engineers and technical employees in the automotive, aerospace, and commercial vehicle industries. It benchmarks compensation levels based by geography, education, industry sector, experience, and managerial and budgetary responsibility. The full report is available to SAE International members by signing into your My SAE account and downloading it into your My Library area. Members also have full access to the updated online interactive salary calculator by visiting SAE’s website. Become a member of SAE International to access this exclusive benefit for free, or purchase it today. YOU BELONG HERE. Membership helps you succeed both personally and professionally. Join us today.
Event

2022 COMVEC™

2024-05-12
COMVEC™ conference is the only North American event that addresses vehicles and equipment spanning on-highway, off-highway, agricultural, construction, industrial, military, and mining sectors.
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