Comparative Assessment for Holistic Evaluation of Drive Systems

The development of vehicle drive systems targets different goals, which are partly contradictory. While the focus is often on increasing efficiency and—depending on the type of drive system—performance, the aim is to simultaneously reduce costs, weight, and volume as much as possible. This goal gene...

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Main Authors: Raphael Mieth, Frank Gauterin
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Vehicles
Subjects:
Online Access:https://www.mdpi.com/2624-8921/6/1/17
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author Raphael Mieth
Frank Gauterin
author_facet Raphael Mieth
Frank Gauterin
author_sort Raphael Mieth
collection DOAJ
description The development of vehicle drive systems targets different goals, which are partly contradictory. While the focus is often on increasing efficiency and—depending on the type of drive system—performance, the aim is to simultaneously reduce costs, weight, and volume as much as possible. This goal generally presents a conflict of objectives; for example, a gain in efficiency usually correlates with higher costs, or an increase in performance reduces the maximum achievable efficiency. Therefore, each drive system represents a compromise among these goals, and depending on the main focus, the development can be influenced. The methods presented in this work serve as a methodological framework for the evaluation of vehicle drive systems. The procedure involves evaluating different drive concepts based on defined criteria and comparing these evaluations with one another. These criteria can be selected freely and weighted differently, depending on the individual focus. In the sense of a holistic assessment, a system evaluation factor ultimately serves as an indicator, which is composed of the rating values of the individual criteria, taking into account their specific weightings. With the help of the novel method presented in this paper, the complexity of comparing differently designed powertrains is reduced, and a holistic assessment covering relevant viewpoints is possible. Such an all-encompassing view is helpful in the early development phase and is required as an evaluation basis for further, groundbreaking decisions in concept development.
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spelling doaj.art-316a0973fcd343b59752cd76bbb5b3972024-03-27T14:07:15ZengMDPI AGVehicles2624-89212024-02-016140341410.3390/vehicles6010017Comparative Assessment for Holistic Evaluation of Drive SystemsRaphael Mieth0Frank Gauterin1Institute of Vehicle System Technology, Karlsruhe Institute of Technology, 76131 Karlsruhe, GermanyInstitute of Vehicle System Technology, Karlsruhe Institute of Technology, 76131 Karlsruhe, GermanyThe development of vehicle drive systems targets different goals, which are partly contradictory. While the focus is often on increasing efficiency and—depending on the type of drive system—performance, the aim is to simultaneously reduce costs, weight, and volume as much as possible. This goal generally presents a conflict of objectives; for example, a gain in efficiency usually correlates with higher costs, or an increase in performance reduces the maximum achievable efficiency. Therefore, each drive system represents a compromise among these goals, and depending on the main focus, the development can be influenced. The methods presented in this work serve as a methodological framework for the evaluation of vehicle drive systems. The procedure involves evaluating different drive concepts based on defined criteria and comparing these evaluations with one another. These criteria can be selected freely and weighted differently, depending on the individual focus. In the sense of a holistic assessment, a system evaluation factor ultimately serves as an indicator, which is composed of the rating values of the individual criteria, taking into account their specific weightings. With the help of the novel method presented in this paper, the complexity of comparing differently designed powertrains is reduced, and a holistic assessment covering relevant viewpoints is possible. Such an all-encompassing view is helpful in the early development phase and is required as an evaluation basis for further, groundbreaking decisions in concept development.https://www.mdpi.com/2624-8921/6/1/17holistic evaluation of drive systemstechnology-independent assessmentcost–benefit analysispairwise comparisonweighted sum model
spellingShingle Raphael Mieth
Frank Gauterin
Comparative Assessment for Holistic Evaluation of Drive Systems
Vehicles
holistic evaluation of drive systems
technology-independent assessment
cost–benefit analysis
pairwise comparison
weighted sum model
title Comparative Assessment for Holistic Evaluation of Drive Systems
title_full Comparative Assessment for Holistic Evaluation of Drive Systems
title_fullStr Comparative Assessment for Holistic Evaluation of Drive Systems
title_full_unstemmed Comparative Assessment for Holistic Evaluation of Drive Systems
title_short Comparative Assessment for Holistic Evaluation of Drive Systems
title_sort comparative assessment for holistic evaluation of drive systems
topic holistic evaluation of drive systems
technology-independent assessment
cost–benefit analysis
pairwise comparison
weighted sum model
url https://www.mdpi.com/2624-8921/6/1/17
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