Load Changes in Cornering
Load-change →Sudden change in the traction forces caused by abrupt changes in the accelerator-position, during declutching or at the beginning of a gearshift in an automatic transmission.
During cornering, abrupt changes in the circumferential forces on the driven wheels cause a yaw response on the vehicle, which in the absence of a steering correction from the driver would result in the vehicle drifting into the curve.
→The most violent excitation is caused by the sudden release of the gas pedal, since in this case, the traction forces are not only reduced to zero but are converted into braking forces as a result of the braking torque from the engine.
→Natural reflex of a driver entering into a curve too fast or when faced with a progressively sharpening curve is to shift from the gas to the brake, the effects of load-changes during cornering are of paramount importance for active driving safety.
A moderate drift of the vehicle into a curve as a result of load-change is considered favorable. It must however not be so severe, that the driver is no longer able to provide the required steering corrections to stabilize the vehicle. The effect of load change results from the superimposition of a number of individual factors.