Analysis on rollover index and rollover risk factors of vehicles

In order to make clear the rollover index used in rollover warning and anti-rollover control and the influence degree of rollover risk factors,CarSim is used to establish a nonlinear dynamics model for SUVs.Experimental design on fishhook rollover tests based on simulation method is conducted,and the experimental results are analyzed by mathematical statistics methods.The simulation results show that:tire load transfer rate index in the characterization of vehicle rollover has higher reliability;the relations among vehicle skidding,steering ability and rollover mainly depend on the road adhesion situation;the newly proposed rollover risk evaluation index suitable for vehicle complex input conditions is able to analyze the influence of rollover risk factors on rollover risk.