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Increasing popularity of EV and Hybrid Vehicles has led to an increase in cases of battery thermal runaway and propagations incidents.
The new regulatory update ECE-R100-03 supplement 05 aims to address the needs for safe evacuation of the occupants by introducing two requirements necessary for the approval an electric or hybrid vehicle:
Ensure a vehicle evacuation time of less than 5 minutes;
or
Verify that the battery thermal runaway is contained in such a way as not to create a dangerous situation for the occupants of the passenger compartment.
The presentation will show a detailed analysis of all evacuation phases, from the moment the danger light is displayed on the dashboard until all passengers are safely away from the vehicle.
The timing is significantly influenced by various factors, such as the external scenario (city center, highway, tunnel), the arrangement of passengers (2 seats with disabled passenger in wheelchair, 2+2 seats with disabled passenger in wheelchair and two children in child seats aged 1.5/3 and 10 years) and the type of vehicle (e.g. spider or SUV).
The object of study involves the analysis of the relevant combinations of these factors. The estimate of the first phases, until the vehicle is stopped and turned off on the roadside, derives from a bibliographical consultation that allows to estimate the timing. The timing of the subsequent phases instead, derives directly from experimental tests carried out in the company.
TÜV SÜD Czech has recently enhanced its ALIS system, an already state-of-the-art solution for side sled testing with intrusion in complex side crashes. This system is designed to test and develop critical vehicle safety components such as airbags, seatbelts, seats, and interior trim.
The latest upgrade, ALIS Occupant-to-Occupant (O2O), now enables simultaneous physical testing of both the driver and passenger, providing a more comprehensive assessment of occupant protection. It also facilitates the development of central airbags for the relevant Euro NCAP assessment.
This presentation will provide insights into the operation of ALIS O2O, highlighting its key features and its role in advancing automotive safety standards. A part of the presentation will focus on sled set-up research for near-side biomechanical response and far-side (O2O) kinematics. Additionally, we will explore the integration of FEM simulations and discuss how they contribute to improving vehicle safety performance.
