Frontal Structure Safety Analysis of Minibuses Based on Chinese In-Depth Accident Studies

This paper analyzes accident characteristics from several factors like accident type, reason, environment and crash part by reporting in-depth accident that involved minibus passenger injured of China in-depth accident study program (CIDAS). The paper uses PC-CRASH simulation software, sets the minibus simulation model and gets the equivalent collision speed by simulation. Then the relationship between equivalent collision speed, maximum deformation, collision overlap, passenger injury and frontal structure safety of minibus are analyzed. By analyzing opposite collision vehicle type, deformation characteristic of minibus and structural failure of minibus passenger cabin deformation of frontal collision, the characteristics of structural failure of minibus are studied. Finally, the paper compares the minibus accident cases and China passenger vehicle frontal impact occupant protection regulation of equivalent collision speed and collision overlap, analyzes the different between test factors of regulation and statistics of real accident, and give the improving opinion for passenger vehicle frontal impact occupant protection regulation.