Vehicle rollover accidents have been a serious safety problem for the last three decades.Although rollovers are a small percentage
of all traffic accidents, they do account for a large proportion of severe and fatal injuries. Specifically, some large passenger
vehicles, such as large vans, pickup trucks, and sport utility vehicles, are more prone to rollover accidents with a high
center of gravity (CG) and narrow track width. Vehicle rollover accidents may be grouped into two categories: tripped and
untripped rollovers. A tripped rollover commonly occurs when a vehicle skids and digs its tires into soft soil or hits a tripping
mechanism such as a curb with a sufficiently large lateral velocity. On the other hand, the untripped rollover is induced
by extreme maneuvers during critical driving situations, such as excessive speed during cornering, obstacle avoidance, and
severe lane change maneuver. In these situations, the forces at the tire-road contact point are large enough to cause the
vehicle to roll over. Furthermore, vehicle rollover may occur due to external disturbances such as side-wind and steering
excitation. Therefore, it is necessary to investigate the dynamic stability and control of tripped and untripped vehicle rollover
so as to avoid vehicle rollover accidents.
In this book, different dynamic models are used to describe the vehicle
rollover under both untripped and special tripped situations. From the vehicle dynamics theory, rollover indices are deduced,
and the dynamic stabilities of vehicle rollover are analyzed. In addition, some active control strategies are discussed to
improve the anti-rollover performance of the vehicle.