Lightweight Design Solutions in the Automotive Field: Environmental Modelling Based on Fuel Reduction Value Applied to Diesel Turbocharged Vehicles

Delogu, Massimo; Pero, Francesco Del; Pierini, Marco

doi:10.20944/preprints201611.0059.v1

Cited by 27 publications

(10 citation statements)

References 34 publications

(35 reference statements)

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“…As can be seen in Table 1, seven synonyms for the term "criterion" and eight synonyms for the term "lightweight design" were used in both singular and plural form. Synonyms for the term "criterion*" Synonyms for the term "lightweight design*" "Parameter" (Delogu et al, 2018) "Lightweight construction" (Schleinkofer et al, 2018) "Indicator" (Choudry et al, 2018) "Lightweight development" (defined by the authors) "Factor" (Hottle et al, 2017) "Lightweight engineering" (Caldwell et al, 2013) "Basis" (Koffler and Rohde-Brandenburger, 2010) "Lightweight optimization" (Wang et al, 2017) "Measure" (Delogu et al, 2016) "Mass reduction" (Hottle et al, 2017) "Multi-objective" (Wang et al, 2017) "Mass saving" (Qin et al, 2016) "Multi-criteria" (Kaspar et al, 2018) "Weight reduction" (Viqaruddin and Reddy., 2017) "Weight saving" (defined by the authors)…”

Section: Criteria For Lightweight Designmentioning

confidence: 99%

Derivation of Criteria for Identifying Lightweight Potential – A Literature Review

Laufer¹,

Roth²,

Binz³

2019

Proc. Int. Conf. Eng. Des.

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Lightweight potential is a powerful indicator – but not as powerful as it could be. Current methods for analyzing a product's potential to be reduced in mass only deal with a few of the most important criteria for lightweight design. The amount of literature dealing with lightweight design is significant, yet it can help to understand these versatile criteria. Firstly, the literature on this topic will therefore be reviewed to derive a broad set of criteria used in contemporary lightweight design. Secondly, a further review will reveal the criteria used to derive lightweight potential. Subsequently, both sets will be compared to identify the missing criteria used for the derivation of lightweight potential. This will support designers in two ways. On the one hand, matching and combining both criteria sets will enable the most representative criteria for a particular design case to be chosen, thus leading to a more comprehensible derivation of lightweight potential. On the other hand, the combination set will provide a basis for designers and design teams to refine their understanding of their own motivations for conducting lightweight design.

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Section: Criteria For Lightweight Designmentioning

confidence: 99%

Derivation of Criteria for Identifying Lightweight Potential – A Literature Review

Laufer¹,

Roth²,

Binz³

2019

Proc. Int. Conf. Eng. Des.

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“…Results recorded over a vehicle life cycle of 200,000 km driving revealed that when typical steel parts were replaced with aluminium parts, the vehicle consumed 1,447 to 1,590 litres JEDT 17,1 less gasoline. A tailored model to assess the environmental benefits of light weighting on diesel-turbocharged vehicles was presented by Delogu et al (2016) and was based upon fuel reduction value (FRV). Their results (ibid) showed that the FRV was within the range of 0.115-0.143 and 0.142-0.388 L/100 km Â 100 kg for mass reduction only and powertrain adaptation purposes.…”

Section: Lightweight Materials and Their Applicationsmentioning

confidence: 99%

A preliminary mechanical design evaluation of the Wikispeed car: for light-weighting implications

Kulkarni

Edwards

Chapman

et al. 2019

JEDT

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Purpose: Road passenger transportation faces a global challenge of reducing environmental pollution and greenhouse gas emissions due to vehicle weight increases needed to enhance passenger safety and comfort. This paper presents a preliminary mechanical design evaluation of the Wikispeed Car (with a focus on body bending, body torsion and body crash) to assess light-weighting implications and improve the vehicle's environmental performance without compromising safety. Approach: For this research, finite element analysis (FEA) were performed to examine the Wikispeed chassis for light-weighting opportunities in three key aspects of the vehicle's design, namely: i) for body bending the rockers (or longitudinal tubes); ii) for body torsion (again on the rockers but also the chassis as a whole); and iii) for crash safetyon the frontal crash structure. A two phase approach was adopted, namely: in phase one, a 3D CAD geometry was generated; and in phase two FEA was generated. The combination of analysis results was used to develop the virtual model using FEA tools and the model was updated based on the correlation process. Findings: The research revealed that changing the specified material Aluminium Alloy 6061-T651 to Magnesium EN-MB10020 allows vehicle mass to be reduced by an estimated 110kg, thus, producing a concomitant 10% improvement in fuel economy. The initial results imply that the current beam design made from magnesium would perform worst during a crash as the force required to buckle the beam is the lowest (between 95.2 kN and 134 kN). Steel has the largest bandwidth of force required for buckling and also requires the largest force for buckling (between 317 kN and 540 kN). Originality: This is the first study of its kind to compare and contrast between material substitution and its impact upon Wikispeed car safety and performance.

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“…In most markets, results from standardized test procedures are applied to determine greenhouse gas emissions that are the foundation for regulations or taxes [160]. In Europe, the assessment of real drivingemissions (RDE) has been introduced in order to determine pollutants from ICE vehicles [161].…”

Section: Automotivementioning

confidence: 99%

“…Several research studies have been published on physics-based approaches to determine mass-induced effects on a vehicles' fuel consumption [65,157,158,161,[164][165][166]. One important factor is the evaluation of drivetrain efficiencies to derive the relation between energy intake and output.…”

Section: Automotivementioning

confidence: 99%

“…[157] and [178], adaptions in gear ratio and displacement to maintain driving performance after decreasing weight could double the achievable fuel reduction for ICEs in the standardized NEDC test. Delogu and Del Pero et al derive primary and secondary improvements in the use stage for different vehicle classes and test procedures for both gasoline and diesel vehicles [161,164]. Hofer et al as well as Lewis et al provide a comparison of effects from decreasing weight on battery electric vehicles and conventional vehicles using a physical modelling approach [170,179].…”

Section: Automotivementioning

confidence: 99%

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Life cycle engineering of lightweight structures

et al. 2018

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Lightweight structures are increasingly necessary to meet current engineering requirements. Weight reduction in diverse applications such as automobiles or machine tools is achieved either by using less material or by substituting material with a lighter one, which provides more functionality per unit of weight. To be an effective enabler for sustainability, lightweight structures should result in lower environmental impacts per functional unit when compared to conventional structures on a life cycle basis. However, applying new materials and manufacturing processes often leads to an increase in environmental impacts from the raw materials and production stage of the life cycle. Furthermore, end-of-life disassembly and recycling may become more difficult. In addition, the expected efficiency gains from the use of lightweight structures depend on how the overall market and technical systems respond to them. Consequently, the environmental evaluation of lightweight structures in engineering entails various methodological challenges. Organised around a life cycle engineering framework with a focus on eco-effectiveness, this paper provides a comprehensive review of lightweight structure applications and the challenges and opportunities they present in a life cycle engineering context.

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Lightweight Design Solutions in the Automotive Field: Environmental Modelling Based on Fuel Reduction Value Applied to Diesel Turbocharged Vehicles

Cited by 27 publications

References 34 publications

Derivation of Criteria for Identifying Lightweight Potential – A Literature Review

Derivation of Criteria for Identifying Lightweight Potential – A Literature Review

A preliminary mechanical design evaluation of the Wikispeed car: for light-weighting implications

Life cycle engineering of lightweight structures

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