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Technical Paper

Managing Functional Safety (ISO26262) in Projects

2017-03-28
2017-01-0064
The ISO 26262 standard for functional safety was first released in 2011 and has been widely incorporated by most OEMs and Tier1 suppliers. The design and conformance of the product to functional safety standards is strongly intertwined with the product development cycle and needs to be carefully managed. The consideration for functional safety needs to begin right from the product’s concept phase through engineering and production and finally decommissioning. The application of the standard in a project can bring significant challenges especially to managers who are relatively new to the standard. This paper provides some guidelines on the key tasks involved in managing ISO26262 in projects and some ways to approach them. The paper is expected to help managers manage ISO26262 compliant projects. The paper also tries to come up with a metric that can be used for resource estimation for implementing ISO26262 in projects.
Journal Article

Managing Functional Safety Processes for Automotive E/E Architectures in Integrated Model-Based Development Environments

2014-04-01
2014-01-0208
The international standard ISO 26262 for functional safety of road vehicles claims processes and requirements for the entire product lifecycle of automotive electric and electronic systems. The demanded activities and work products within the standard are highly interconnected. Additionally, references to exemplarily external quality management standards or commonly recognized industry sources are given. Therefore, the application of functional safety processes in distributed development is challenging regarding description, understanding, analysis and planning of processes. To overcome these inconveniences, we provide a meta model extension for model-based architecture description languages regarding process description, organizational structures and resource assignment. This is related to the established “Business Process Model and Notation” (BPMN) according to ISO/IEC 19510:2013.
Technical Paper

Managing Human Performance - INPO's Human Performance Evaluation System

1987-01-01
872526
Human error cannot be eliminated, but it can be better managed. Evaluating human error or human performance problems and correcting the root causes can help preclude recurrence. The Institute of Nuclear Power Operations (INPO), working with several members and participant utilities in an extended pilot program, has developed a nonpunitive program designed to identify, evaluate, and correct situations that cause human performance errors. The program is called the Human Performance Evaluation System (HPES). Its primary goal is to improve human reliability in overall nuclear plant operations by reducing human error through correction of the conditions that cause the errors. Workers at participating nuclear utilities are encouraged to report their errors and a specially trained plant coordinator investigates and recommends actions to correct the root causes of these errors.
Technical Paper

Managing Increasing Exhaust System Variants for Passenger Vehicles

2018-06-13
2018-01-1557
In all major markets, the legislation on emissions (CO2, NOx, and PM) and on pass-by noise limits have been drastically lowered over the last years and will be even lower in the near future. This will have an enormous impact on the design of future passenger cars, their powertrains, and finally their exhaust systems with an inherent cost penalty. Moreover, the individual market requirements in Europe, Asia and the Americas differ in some respect often calling for individual variants. The increasing number of vehicle models and platform derivatives e.g. sedan, hatchback, coupe, convertible, sports utility vehicle, cross-over etc. leads to a huge variety of exhaust systems even within a single OEM platform let alone a whole OEM product portfolio. This causes significant effort in development, tooling, manufacturing, part handling, and logistics. The Active Noise Cancellation technology (ANC) has been investigated in the automotive industry for many years.
Technical Paper

Managing LCI Data Gathering

1998-11-30
982168
Fulfilling the goal and scope of a life cycle inventory (LCI) requires hundreds of thousands of discrete data inputs to be consolidated into a useful form. The planning and execution of data collection activities is therefore a critical aspect of ensuring the quality of an LCI study. This paper highlights how the members of The Aluminum Association and the Aluminum Association of Canada managed the data collection process for the United States Automotive Materials Partnership's Life Cycle Assessment Special Topics Group (USAMP/LCA). Overcoming the challenge of meeting the USAMP data quality requirements with inputs from over 200 reporting locations in nine countries on five continents is examined. This paper is one of six SAE publications discussing the results and execution of the USCAR AMP Generic Vehicle LCI. The papers in this series are (Overview of results 982160, 982161, 982162, 982168, 982169, 982170).
Technical Paper

Managing Life Support Systems Using Procedures

2007-07-09
2007-01-3026
International Space Station life support hardware is controlled mainly from the ground by executing standard operating procedures. While some on-board software exists for safety purposes, most commands are sent from ECLSS ground controllers to achieve mission objectives. This will prove unwieldy for extended operations with increasing time delays. This paper presents a new approach to encoding standard operating procedures that provides a path to greater autonomy in life support operations. Software tools will allow for adjustable automation of procedures from either the ground or on-board. The Cascade Distiller System (CDS) being tested at NASA Johnson Space Center is used as an example system.
Technical Paper

Managing Loads on Aircraft Generators to Prevent Overheat In-Flight

2014-09-16
2014-01-2195
On future UAVs it is envisaged that the power requirements of all on-board electrical systems will increase. In most flight (mission) situations the installed power generation will have adequate capacity to operate the aircraft. It is possible that during abnormal situations such as coolant blockage the generators on-board may be forced to operate under very high load conditions. The main failure mechanism for a generator is overheating and subsequent disintegration of windings, hence the research problem being addressed here is to manage the loads upon the generator to prevent overheats. The research presented here summarizes the modeling of the generator and formation of the load management system. Results are presented showing the system reallocating loads after a fault during flight, preventing overheat of the generators and successfully completing the mission.
Technical Paper

Managing Man-in-the-Loop Simulations

1989-09-01
892355
Managing Man-in-the-Loop simulation projects has become a complicated process requiring a combination of technical skills, management techniques, and team work between various interested parties. The most critical aspects of this process are present in this paper; statement of requirements, planning and design, implementation and execution.
Technical Paper

Managing Microcomputer Projects

1983-06-06
831020
General characteristics of a microcomputer project are examined and a singular set of management problems typical of such a project is derived. Several practices and procedures intended to control these problems and procedures are presented.
Technical Paper

Managing Multiple Accreditation Programs in Today's Manufacturing Environment

1997-06-03
972250
Managing the multiple accreditation and registration programs required by industry today requires considerable resources. An analysis of the similarities and differences between programs such as ISO 9000, QS-9000, ARD9000, NADCAP, ISO Guide 25, and the Fastener Quality Act will allow one system to be developed that will meet the multiple requirements of multiple accreditation plans. Understanding the different audit structures and styles of various programs and accreditation bodies allows you to manage the accreditation process instead of you being managed by the accreditation process.
Technical Paper

Managing Multiple Sources of Epistemic Uncertainty in Engineering Decision Making

2007-04-16
2007-01-1481
Managing uncertainty is an integral part of making well-informed engineering decisions. When formulating a design problem, many of the variables and models contain epistemic uncertainty, uncertainty due to lack of knowledge. If this lack of knowledge is significant, it may be advantageous to acquire additional information before making a design decision. In this paper, we develop a framework for identifying which sources of epistemic uncertainty should be reduced to improve the overall quality of the design decision. Using principles of information economics, utility theory, and probability bounds analysis, we determine how much additional information should be acquired for each uncertain quantity in the decision problem. Our approach is illustrated with an example for the environmentally benign design of an electric vehicle.
Technical Paper

Managing Product Development throughFeature Modeling

2018-04-03
2018-01-0089
Personalized solutions are key to achieving customer satisfaction. The automotive segment is on the cusp of feature growth brought about by new advances in technology at an unprecedented level. The Automotive industry uses process frameworks such as ASPICE to manage product lifecycle phases involving requirements, change request management, software development, systems testing and quality assurance. ASPICE, however, does not provide a framework that enables management of complexity arising from product variation in the Systems, Hardware, Mechanical and Software Competencies, in order to meet customer expectations. Customer expectations involve functional features and non-functional features. Adding to this complexity is the scope of Variant Management whereby a feature is enabled or disabled for a specific market based on the region and vehicle architecture. Feature requirement within a competency group can involve multiple domains for realization.
Technical Paper

Managing Regulatory Content

2001-03-05
2001-01-1084
Managing regulatory content is a complex process for any industry, but particularly for the automotive industry, which is heavily regulated. Several approaches for managing content are discussed along with implications for the industry. The response of an Original Equipment Manufacturer (OEM) to the recent European Parliament End-of-Life Vehicle Directive (EU 2000/53/EC-ELVs)1 is discussed from a North American perspective as well as trickle down expectations for the automotive supply base. Design, sourcing and labeling issues associated with the ELV directive as well as domestic regulations are discussed.
Technical Paper

Managing Requirements at the Object Level

2000-09-11
2000-01-2570
The purpose of this paper is to discuss how the requirements management process can be improved by adopting an object-oriented approach. It will also discuss the advantages and benefits that can be derived when requirements are treated as objects, captured at their source, stored in a central repository; and when requirement changes are automatically transmitted to all stakeholders.
Technical Paper

Managing Risk Reduction using a Relative Risk Prioritization Tool

2007-09-17
2007-01-3871
The Safety Management System (SMS) provides an environment where undesired events (proactively or reactively identified) are evaluated for the effect on safety using Risk Analysis. When the risk is evaluated, an interim risk reduction (mitigating action) may be applied to reduce the risk to a level that allows operations for a longer period before the safety issue is fully resolved. The risk assessment provides a means of evaluating the risk level and it may be difficult to quantify the “benefit” of interim mitigations that will reduce the risk. Prioritization of issues in the same risk category of the Risk Matrix is often simplified to a schedule and logistics basis of the final corrective action and often does not adequately show the benefit of the interim mitigating actions taken.
Technical Paper

Managing Road Load Data & The Process

2005-04-11
2005-01-0828
Faced with an ever increasing supply of road load data and no reasonable means to keep track of it, Managing Road Load Data and The Process is about one engineer's charge to deliver a solution. This paper summarizes the approach taken by this engineer and his team to produce a system that not only provides a place to store their data, but facilitates the entire data collection, validation and dissemination process. By following the steps outlined in this document, virtually every opportunity for improvement will be identified. That is, the process is thoroughly explored; the wants and needs of the users are identified, and then, as warranted, turned into functional elements of the system. The result is a central repository that is accessible to all and with the capability of significantly reducing cost and timing. The development process presented here is not a difficult one to accomplish, but does require keeping track of a lot of detail. It can therefore be quite time consuming.
Technical Paper

Managing Road Transport Noise through Control of Tire-Road Noise: An Indian Scenario

2012-01-09
2012-28-0021
The traffic noise has been a major source of discomfort to people for decades. Traffic noise is by far the most pervasive of all noises and over 80 million people are exposed to traffic noises of unacceptably high levels in the European Union alone. A major source of traffic noise is the noise generated due to interaction of rolling tire with pavement/road. In order to control this noise within the limits of comfort or regulatory requirements, improvement and engineering is required at both tire and pavement levels. Coast-by noise standards ISO 13325 (UNECE R117) was adopted for tire-road noise measurement purpose. With the introduction of more stringent rolling sound emission limits for new tire from 2012 in international market, a review of current state of sound emission levels emitted from new tire (C1 Category) available to Indian consumer for passenger car has been discussed in this paper.
Technical Paper

Managing SI/HCCI Dual-Mode Engine Operation

2005-04-11
2005-01-0162
Gasoline HCCI engine has the potential of providing better fuel economy and emissions characteristics than the current SI engines. However, management of HCCI operation for a vehicle is a challenging task. In this paper, the issues of mode transitions between the Spark Ignition and HCCI regimes, and the dynamic nature of the load trajectory within the HCCI regime are considered. Then the phenomena encountered in these operations are illustrated by the data from a single-cylinder engine with electromagnetic-variable-valve timing control. Mode transitions from the SI to HCCI regime may be categorized as robust and non-robust. In a robust transition, every intended HCCI cycle is successful. In a non-robust transition, one or more intended HCCI cycles misfire, although the cycles progress to a satisfactory HCCI operating point in steady state. (The spark ignition was kept on so that the engine could recover from a misfired cycle.)
Technical Paper

Managing Service Deficiencies-A Pilot Perspective

1976-02-01
760514
Managing service deficiencies is a team effort in the airline business. The Captain's responsibilities and authority are directly related to safety and loss control. Service deficiencies are manifested by mechanical, design, procedural and communication shortcomings. Some examples and facts are covered to see how deficiencies can affect an operation in considering the airplane-mission match up and operate a safe transportation system. An aging fleet of airplanes can also present future mechanical problems that have no historical precedence. Fuel costs and supply are having a greater impact in both corporate and national survival. Fuel efficiency becomes an operating watchword and a strong pilot responsibility. Captains are well-trained and provide the discriminating assessment of their equipment based on flight conditions prior to each takeoff. They provide the last line of defense.
Technical Paper

Managing Stress: Conquering the Inevitable

1992-04-01
920904
Whether you have just been promoted or fired, whether you are newly retired or about to undergo surgery, whether you have answered the phone to learn that a loved one has died or that you have won the lottery - in each of these situations, you will experience stress. And you will find the physical evidence of stress (the stress response) is always the same: your heart pounds, you breathe hard, your palms get sweaty, your stomach ties in knots, your blood pressure rises, the pupils of your eyes dilate, and your digestion grinds to a halt.
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