Research On Bus Rollover Warning And Anti Rollover Control

In recent years,with the rapid growth of highway passenger traffic,the vehicle rollover accident is also increasing,resulting in serious casualties and huge economic losses.In the car accident,rollover accident harm degree is high,has attracted more and more attention.Due to the large passenger capacity,high center of mass,mass and other characteristics,more prone to rollover than other cars.It has become a hot topic to study how to improve the stability and reduce the occurrence of rollover accidents.The main contents of this paper are as follows:(1)Taking the bus as the research object,the three degree of freedom rollover model is established,and the dynamic model of the vehicle with three degrees of freedom is built in the Simulink environment,which is compared with the Trucksim model.(2)This paper analyzes the factors that affect the stability of the passenger car,and puts forward the evaluation index which can describe the stability of the vehicle more accurately.Analysis of the impact of the structural parameters of a vehicle dynamic stability coefficient and control parameters(3)The lateral load transfer rate is chosen as the index of vehicle rollover.The rollover warning algorithm based on side slope estimation is established,and the differential braking anti rollover control based on TTR is proposed.Using Matlab/Simulink and Trucksim software to simulate and analyze the differential braking anti rollover control based on TTR.