This paper describes an unified chassis control (UCC) strategy to prevent vehicle rollover and improve maneuverability. In order to detect a danger of rollover, rollover index (RI) which indicates an impending rollover is determined. The rollover index is calculated using estimated roll angle, roll rate and measured lateral acceleration. Lateral and vertical model-based roll state estimators ar...

This paper proposes a methodology that allows the combination of the Stability Factor and handling characteristic to predict the probability of rollover per single vehicle crash. Paper No.202-O Simulation of Occupant Kinematics in Vehicle Rollover Dummy Model versus Human Model Norbert Praxl, Markus Schönpflug, Jiri Adamec Institute for Legal Medicine Munich, Germany Abstract Currently, 25% of ...

Types of vehicle rollovers can be classified into two categories: untripped and tripped. Untripped rollovers are relatively rare events resulting from high lateral friction forces between the tires and road. Tripped rollovers are the result of lateral forces caused by the tire or wheel digging into the road or ground or from striking a curb or other obstacles. As reported in the open literature...

With the features of high centroid, high load capacity and high aspect ratio, heavy vehicles are prone to rollover when running at high speeds in the corners, so the study of heavy vehicle rollover warning method presents important realistic meanings. In this paper, firstly, the composition of early warning systems is analyzed, and then the principles of rollover warning method based on suspens...

Articulated liquid cargo vehicles transporting inflammable fuels and dangerous chemical products require special consideration when traveling on urban roads or cruising at highway speeds. The road safety and handling of these kinds of vehicles may be adversely affected when negotiating sharp turns or travelling on slippery roads, which may result in either lateral instabilities or complete roll...

In the roadside safety community, there has been debate over the influence of vehicle and barrier type on rollover rates in traffic barrier crashes. This study investigated rollover rates between sport utility vehicles (SUVs), pickup trucks, and cars in vehicle-traffic barrier crashes and has examined the effect of barrier type on rollover risk for concrete barrier and metal barrier impacts. Th...

The paper addresses the problem of vehicle rollover avoidance using reference governors applied to modify the driver steering input in vehicles with an active steering system. Several reference governor designs are presented and tested with a detailed nonlinear simulation model. The vehicle dynamics are highly nonlinear for large steering angles, including the conditions where the vehicle appro...

Two different rollover crash scenarios were simulated with the software Madymo. The vehicle kinematics in the numerical simulation were prescribed by the use of sensor signals of real crash tests. The Madymo 50% Hybrid III dummy model as well as the Madymo human model was applied to these simulations and the model kinematics were analysed and compared. Differences in the kinematics of human and...

The evaluation of the biomechanical performance that can be expected from alternative designs for restrained occupant rollover protection was approached through the use of finite element modeling. Finite element models of vehicle designs and the Hybrid III dummy were used to evaluate elements of alternative rollover occupant protection system designs. Results from rollover crash tests of a prod...