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Engineering Automotive Electronic Systems: Decision Support for Successful Integration
Mälardalen University, Department of Computer Science and Electronics.ORCID iD: 0000-0001-8891-033X
2007 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

The electronic system of a modern vehicle is essential to achieve a successful automotive product. Vehicle development is performed by integrating components that include embedded electronics from several suppliers.

This thesis present results on the subject of integration of automotive electronic systems. Our studies aim at providing knowledge on how to integrate automotive electronic systems successfully in a setting where vehicles are developed based on existing platforms. We focus on early phases of automotive electronic system development and in particular on the decisions taken in integration of electronic sub-systems. The contribution is the presented support for making decisions to successfully integrate electronic systems for modern vehicles. The contribution includes an overview of driving factors of automotive electronics system design, a validated set of success practices for the integration of electronic components, and the proposal and demonstration of a decision model. The influential factors and the validated set of practices stems from case studies of products and projects while the proposed decision model is a result of combining two general models for architecture analysis and decision making, ATAM and AHP.

We demonstrate that choices in strategy and design preceding integration are central to achieve a successful integration. Our studies show that problems arise from omitted strategy decisions and we provide a checklist for decision making in the areas; functionality, platform, integration design, and assigning responsibilities. We provide a recommendation that we validate in a multiple cases study where fulfillment of recommendations is demonstrated to affect project success in integration projects.

The potential gain for OEMs using our results lies in achieving more solid foundations for design decisions. Designers and managers could potentially find central decisions on integration strategy early that, if omitted, could cause delays. Thus, applying the result could avoid pitfalls and enable successful integration projects.

Place, publisher, year, edition, pages
Institutionen för datavetenskap och elektronik , 2007. , 123 p.
Series
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 52
Keyword [en]
Integration, Automotive, Decision support, Electronic system, Systems engineering
National Category
Computer Science
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:mdh:diva-459ISBN: 978-91-85485-65-9 (print)OAI: oai:DiVA.org:mdh-459DiVA: diva2:120981
Public defence
2007-12-19, Beta, U, Mälardalens högskola, Västerås, Västerås, 13:00
Opponent
Supervisors
Available from: 2007-11-14 Created: 2007-11-14 Last updated: 2015-09-14
List of papers
1. Business Situation Reflected in Automotive Electronic Architectures: Analysis of Four Commercial Cases
Open this publication in new window or tab >>Business Situation Reflected in Automotive Electronic Architectures: Analysis of Four Commercial Cases
(English)Manuscript (Other academic)
Identifiers
urn:nbn:se:mdh:diva-4140 (URN)
Available from: 2007-11-14 Created: 2007-11-14 Last updated: 2014-07-04Bibliographically approved
2. Key Factors for Achieving Project Success in Integration of Automotive Mechatronics
Open this publication in new window or tab >>Key Factors for Achieving Project Success in Integration of Automotive Mechatronics
2007 (English)In: Journal of Innovations in Systems and Software Engineering, ISSN 1614-5046, Vol. 3, no 2, 141-155 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we present a multiple case study on integration of automotive mechatronic components. Based on the findings, we identify that the root causes of problems in integration are largely related to decisions omitted in electronic strategy.

We present and recommend use of checklists defining key factors to address in order to achieve successful integration projects in terms of cost and quality. Our recommendations are defined by checklists for critical decisions in areas; functionality, platform, integration, and stakeholder involvement.

The recommendations are established based on practitioner experience and then validated in a multiple case study. Five cases of integration are studied for different heavy vehicles in one company, and the fulfillment of our recommendations is measured. Finally we define project success criteria and we compare the level of fulfillment with the project success in terms of time plan and resource consumption.

The main contribution of this study is the validated recommendations, each including a set of checkpoints that defines recommendation fulfillment. We also present defining characteristics to identify a high risk project. We provide a set of observable project properties and show how they affect project risk.

National Category
Computer Science
Identifiers
urn:nbn:se:mdh:diva-7043 (URN)10.1007/s11334-007-0023-2 (DOI)2-s2.0-34249915324 (Scopus ID)
Available from: 2009-09-25 Created: 2009-09-25 Last updated: 2015-09-14Bibliographically approved
3. Making Decisions in Integration of Automotive Software and Electronics: A Method Based on ATAM and AHP
Open this publication in new window or tab >>Making Decisions in Integration of Automotive Software and Electronics: A Method Based on ATAM and AHP
2007 (English)In: Proceedings - ICSE 2007 Workshops: Fourth International Workshop on Software Engineering for Automotive Systems, SEAS'07, 2007, Article number 4228592-- p.Conference paper, Published paper (Other academic)
Abstract [en]

In this paper we present a new method for makingdecisions on integration strategy for in-vehicle automotive systems.We describe the problem of choosing integration strategy and wedescribe the method, which is a combination of the ArchitectureTradeoff Analysis Method, ATAM, and the Analytical HierarchyProcess, AHP. We exemplify the use of the proposed method byevaluating the integration decisions concerning the physicalconnection of a realistic example system; a computer controlledautomatic gearbox. We present analysis on the use of the method andconclude that the method has several benefits compared to ATAM orAHP used individually. The method firstly supports a structured wayof listing system goals, and secondly, it also supports the makingof design decisions.

National Category
Engineering and Technology Computer Systems
Identifiers
urn:nbn:se:mdh:diva-4142 (URN)10.1109/SEAS.2007.7 (DOI)2-s2.0-36248952589 (Scopus ID)9780769529684 (ISBN)
Conference
ICSE 2007 Workshops: 4th International Workshop on Software Engineering for Automotive Systems, SEAS'07; Minneapolis, MN; United States; 20 May 2007 through 26 May 2007
Available from: 2007-11-14 Created: 2007-11-14 Last updated: 2016-09-27Bibliographically approved

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