Car Automotive

Among the various modes of vehicle crashes, rollover crashes are often very severe and threatening events that involve automotive vehicles. Rollover occurs as a result of complex interactions among the driver, the vehicle, and the environment.

It may be precipitated from one or a combination of factors. Rollover may be initiated on a flat and level road surface such as when making a steady turn. Once the lateral acceleration acting on a vehicle exceeds rollover threshold for that vehicle, the wheels on one side of the vehicle lift up from the road surface, and the vehicle begins a rollover process. Rollover may also occur after a vehicle slides sideway and hits a curb.

In this situation, the vehicle acquires a large angular velocity due to the sudden stopping of the sliding vehicle upon hitting the curb. In this section, the fundamentals of vehicle rollover dynamics, including rollover detection methodology, are introduced. Other factors such as handling, suspension, and tire properties, the vehicle geometry including wheelbase, the driver, and the complex road conditions are beyond the scope of this text.

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