An approach for the crash safety assessment of smaller and lightweight vehicles

Davies, Huw; Bastien, Christophe

doi:10.1016/j.tranpol.2021.02.009

Cited by 7 publications

(2 citation statements)

References 11 publications

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“…Compared to passenger cars, LEVs are relatively under-researched; however, there are some studies and publications that address topics such as market potential, safety, or regulations (e.g., [4][5][6][7]). To the best of the authors' knowledge, there is no modeling of the substitution potential of passenger car trips by LEVs that includes associated CO2eq savings.…”

Section: Introductionmentioning

confidence: 99%

What Potential Do Light Electric Vehicles Have to Reduce Car Trips?

Gebhardt

Brost

Seiffert

2023

Future Transportation

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Climate protection goals in transportation can only be achieved with a worldwide change in mobility behavior that is supported by technological progress and changes in vehicle concepts. One contribution to reducing greenhouse gas emissions may be using small and light electric vehicles (LEVs) instead of cars. LEVs have a favorable ratio of vehicle weight to payload and the efficiency of electric drives contributes to environmental sustainability. As with full-sized electrically powered cars, emissions from combustion processes are eliminated. Going beyond that, the traction batteries in LEVs can be considerably smaller, thereby reducing the consumption of critical raw materials and lowering production-related greenhouse gas emissions. Against this background, we present the results of a study which aimed to determine what proportion of current passenger car trips in Germany could, in theoretical terms, be covered by LEVs. Our estimation of the substitution potential of LEVs for car trips is based on the 2017 Mobility in Germany (MiD) survey, a national household travel survey (NHTS) containing the data of 960,619 trips. Many different types of vehicles, ranging from e-scooters, cargo bikes, and pedelecs to three- and four-wheeled light electric vehicles, are considered. The results show that up to 76% of car trips and 50% of car mileage could theoretically be substituted by LEVs. The results are further analyzed to determine for which trip purposes and age groups the greatest substitution potential exists. Based on the results, we discuss ways for supporting the realization of this potential as well as factors that determine whether the theoretically calculated potential can be realized.

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Section: Introductionmentioning

confidence: 99%

What Potential Do Light Electric Vehicles Have to Reduce Car Trips?

Gebhardt

Brost

Seiffert

2023

Future Transportation

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“…The European New Car Assessment Programme (Euro NCAP) has recently introduced a mobile progressive deformable barrier (MPDB) to represent car-to-car collisions [21]. However, several researchers have proposed that the MPDB test should account for the vehicle's size and mass [10,22,23]. Zhendong et al [24] combined statistical analysis of different MPDB test data and suggested that collision compatibility can be improved by modifying the front structure load transmission path and energy dissipation.…”

Section: Introductionmentioning

confidence: 99%

Safety Assessment and Crash Compatibility of Heavy Quadricycle under Frontal Impact Collisions

et al. 2022

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An electric heavy quadricycle, categorized as an L7e vehicle, is an alternative solution for sustainable mobility with a lower carbon footprint and high energy consumption efficiency. However, accidental crashes of quadricycles with larger vehicle opponents can cause extensive damage to their structures and fatal injury to the occupants due to their geometry drawback in limited space in the front crumple zone. This work investigates the crashworthiness performance and safety assessment of the L7e vehicle under rigid wall crash tests and crash compatibility in car-to-car collisions with a sedan and an SUV. Crash scenarios are simulated using a nonlinear finite element analysis via LS-DYNA to evaluate structural crashworthiness and occupant injuries of a hybrid III 50th percentile male dummy. The compatible vertical alignment of the primary energy-absorbing structure substantially affects the safety of the quadricycle under a frontal crash. A secondary energy-absorbing component should be adapted to the L7e vehicle to achieve vertical alignment with different vehicle sizes. In addition, the typical rigid-wall frontal crash test at 50 kph considerably underestimates the structural damage and occupant injury of the L7e vehicle compared to car-to-car collisions. Thus, additional crash tests representing car-to-car collisions that account for the car’s smaller size and lighter mass should be included in the safety regulation for the L7e vehicle.

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Parametric Analysis on Heavy Quadricycle Vehicle Front Crash for Safety Optimization

Gesese,

Habte

2024

Green Energy and Technology

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An approach for the crash safety assessment of smaller and lightweight vehicles

Cited by 7 publications

References 11 publications

What Potential Do Light Electric Vehicles Have to Reduce Car Trips?

What Potential Do Light Electric Vehicles Have to Reduce Car Trips?

Safety Assessment and Crash Compatibility of Heavy Quadricycle under Frontal Impact Collisions

Parametric Analysis on Heavy Quadricycle Vehicle Front Crash for Safety Optimization

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