Research On Collisions Accident Analysis System For Motorcycle And Car

In the collision accidents of motorcycles and automobiles,how to accurately analyze the crash accidents of motorcycles and automobiles is a difficult point in the field of traffic accidents.Based on the research status at home and abroad,this paper proposes a new method for the analysis of motorcycle and automobile collision accidents.First of all,the type of accident that this article mainly studies is the oblique collision of a motorcycle.In this type of accident,the type of vehicle that the motorcycle hits is a sedan,and the collision part is the front part of the sedan.First,according to the dynamic characteristics of the motorcycle,build a 5-DOF motorcycle dynamic model,namely:longitudinal movement,lateral movement,yaw,front wheel speed,and rear wheel speed.Secondly,for motorcycles and automobiles,according to the basic data of accident scenes such as the position of the vehicle from the accident site and the final stop position,the corresponding 7-degree-of-freedom dynamic model and the 5 degree-of-freedom dynamics model of motorcycle are used to calculate the corresponding The parameters of each moment after the collision of the vehicle determine the vehicle speed and the angular velocity after the collision.Third,use the existing crash model to solve vehicle speeds and angular speeds of cars and motorcycles before the collision.Fourth,according to the initial state parameters,continue to use the vehicle dynamics model to calculate the speed of the motorcycle and car before the brake is taken.Secondly,using VC++ as a platform,a crash accident analysis system for motorcycles and cars with longitudinal vehicle speed,lateral speed,and yaw rate calculation simulation was developed.Finally,using a practical accident case,the developed motorcycle and car crash accident analysis system and PC-CRASH software were compared and analyzed to verify the practicability and accuracy of the developed system.