Study on vehicle collision results under the AC-MPDB scheme

Abstract With the iteration of vehicle brand design, the applicability of the current Mobile Progressive Deformable Barrier (MPDB) scheme has declined. The Advanced Chinese Mobile Progressive Deformable Barrier (AC-MPDB) is introduced, which incorporates segmented Z-directional design and increased mass distribution to better align with the Chinese vehicle front-end structure. This study utilizes Camry and Rogue models to design an MPDB-to-vehicle and a vehicle-to-vehicle simulation matrix. The compatibility of the barrier schemes, Euro-NCAP MPDB (E-MPDB) and AC-MPDB, is evaluated using energy equivalent speed, occupant load criteria, peak force, and acceleration. The simulation results indicate that, compared to E-MPDB, the AC-MPDB barrier scheme exhibits excessive stiffness for medium-sized sedans with smaller mass but demonstrates better compatibility with SUVs. Further analysis of the target vehicle's longitudinal beam deformation animation and pedal intrusion reveals that AC-MPDB achieves superior vehicle reproducibility, particularly for SUVs.