Schaeffler Technologies Ag & Co .kg

Christian Doerner

Philip Wurzberger

Sebastian Krueger

Horst Münck

Rene Breitenstein

The disclosure relates to a method for steering a vehicle via a rear axle steering system that includes an actuator having a steering linkage at least indirectly operable by a threaded drive and longitudinally displaceable within a chassis-fixed housing. The actuator includes a rotor position sensor for detecting a rotor position of a rotor of an electric motor designed for actuating the threaded drive and a linear sensor for detecting an axial position of a target arranged on the steering linkage. The two sensors are connected to a control and analysis unit configured to carry out a comparison between the rotor position and the axial position of the target when there is a defined zero point of an axial position of the steering linkage relative to the housing and, in consideration of a thermal expansion of at least the steering linkage, operating the actuator to adjust the steering angle.

Method for steering a vehicle, actuator for rear axle steering system of a vehicle and rear axle steering system having such an actuator

A screw connection is formed between steering components, namely a push rod and a fork, in particular of a rear axle steering system. By means of a screw screwed coaxially into one of the two steering components and inserted through an opening in the other steering component, an annular disc-shaped end face of the one steering component is pressed against a likewise annular disc-shaped face of the other steering component. Furthermore, cylindrical mating faces contacting one another are formed by the steering components. In at least one of the two steering components, a transition region is formed between the annular disc-shaped face and the cylindrical mating face, which has at least two different radii of curvature.

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Sugenheim, Germany

Christian Doerner