Active rear axle kinematics of a motor vehicle also steered at the rear wheels thereof

Abstract

Process-computer-controlled, active rear axle kinematics of a motor vehicle also steered at the rear wheels with an electronically controlled control element, provides that the process computer considers the respective steering angle of the front axle and/or values that can be derived therefrom, a potentially speed-dependent derivative action time constant, a potentially speed-dependent delayed time constant, and a potentially speed-dependent co-steering factor for the automatic control of the rear wheels, and the process computer processes parameters acquired from samples, these parameters correlating at least with those angles, only according to a difference equation--i.e., not according to a differential equation to be iteratively solved--and outputs the rated values acquired as a result thereof for the rear axle or, respectively, rear wheel steering angle and/or rated values derived therefrom to the control element.

Dependencies are inferred from the claim text.