Increasing Automation
With the rapid development of vehicle technologies and the introduction of ever higher levels of automation in road traffic, the demand for safety is also increasing. Autonomous
vehicles and modern assistance systems must be able to precisely monitor driving behavior in every situation and react immediately to unexpected driving situations. One of
the key parameters for assessing vehicle behavior is the side slip angle (SSA).
The SSA describes the angle between the actual direction of movement of the vehicle and its longitudinal axis. In safetycritical situations, such as fast cornering, slippery roads or abrupt evasive maneuvers, the SSA provides information on whether the vehicle is in danger of understeering or oversteering. Even the smallest deviations can dramatically change driving behavior and, in extreme cases, lead to loss of control. Systems for controlling driving dynamics, such as the electronic stability program (ESP) or modern river assistance systems, rely on the precise measurement of the slip angle in order to make corrections in real time and keep the vehicle stable.
Definition – Side Slip Angle
The float angle (β) describes the angle between the actual direction of movement (COG) of he vehicle and its longitudinal axis (YAW). Large differences between the direction of movement and the longitudinal axis occur, for example, in a rally car that takes a curve and drifts.
