Active human body model simulations of whole-sequence braking and far-side side-impact configurations

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Wass, Jacob^1,2; Östh, Jonas^1,2,3; Jakobsson, Lotta^1,2,3

Active human body model simulations of whole-sequence braking and far-side side-impact configurations

Proceedings of the 2022 International IRCOBI Conference on the Biomechanics of Injury

Affiliations

¹Volvo Cars Safety Centre

²SAFER – Vehicle and Traffic Safety Centre at Chalmers in Sweden

³Chalmers University of Technology, Gothenburg, Sweden
Abstract and keywords

Vehicle crashes may be preceded by evasive manoeuvres, executed by the driver or automatically. This study demonstrates a seamless simulation with an Active Human Body Model (HBM) as driver in a whole-sequence crash scenario, consisting of a braking intervention followed by a side-impact to the passenger side.

Ten simulations were run with two different side-impact configurations combined with two impact speeds. Possible effects of restraint intervention by a reversible seatbelt retractor and a far-side airbag function were studied, analysing displacements and tissue level injury predictions using the SAFER HBM.

The braking intervention led to a more forward occupant position at the start of the crash phase. A more forward impact point on the vehicle side resulted in 50 mm lowered lateral head excursion, compared to a midcompartment impact configuration. This was influenced by the larger vehicle rotation and reduced lateral crash pulse.

The SAFER HBM was shown to be capable of seamless simulations combining a braking intervention followed by a far-side side-impact. This enables a larger range of possible real-world representative scenarios to be used for occupant protection evaluation, including both pre-crash and in-crash protection systems.

Keywords: Human Body Model, Finite Element, Whole-Sequence, Far-Side, Active Muscle
Links

URL: http://www.ircobi.org/wordpress/downloads/irc22/pdf-files/22112.pdf

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Cited By (2)

Year	Entry
2024	Larsson E, Iraeus J, Davidsson J. Synthetic experiments to investigate occupant variability in braking manoeuvres, a simulation study using Active Human Body Models. In: Proceedings of the 2024 International IRCOBI Conference on the Biomechanics of Injury. September 11-13, 2024; Stockholm, Sweden.806-821.
2023	Larsson E. Passenger Kinematics in Evasive Maneuvers: Advancing Active Human Body Modeling and Understanding Variability in Passenger Kinematics During Evasive Maneuvers [PhD thesis]. Götenburg, Sweden: Chalmers University of Technology; 2023.