Acceleration in Corners
→The process of acceleration is associated with an axle load shift from the front axle to the rear axle.
→Due to a reduction of load on the front axle, the side force capability of the front axle drops and hence both RWD and FWD experience a pronounced understeer, while the centrifugal force increases with driving speed.
→FWD vehicle require larger steering corrections as a result of the driving forces additionally reducing the side force capabilities.
The figure shows the variation of the yaw rate for acceleration in corners on a dry road surface for different drive concepts. The reference line marks the increase in yaw rate that would result from an increase in driving speed if no deviation from the initial radius takes place during acceleration.