Commentary on “Correction to: On the calculation of fuel savings through lightweight design in automotive life cycle assessments” by Koffler and Rohde-Brandeburger (2018)
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In their recent article “Correction to: On the calculation of fuel savings through lightweight design in automotive life cycle assessments” ( https://doi.org/10.1007/s11367-018-1474-4), Koffler and Rohde-Brandenburger (2018) present a method to determine the “percentage fuel savings” from lightweighting a vehicle component. The original work by Koffler and Rohde-Brandenburger (2010) introduced a novel method of estimating generic fuel reduction values (FRVs) to assess the benefits of vehicle lightweighting. Koffler and Rohde-Brandenburger (2010) also described how FRVs could be used to assess the absolute fuel savings from component lightweighting. However, Koffler and Rohde-Brandenburger (2010) noted that for the case of powertrain resizing (changing engine displacement or gear ratios to match vehicle performance), it was not possible to assess relativefuel savings from component lightweighting because this would involve division by zero in their method. To address this limitation,...
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