Robert Bosch Automotive Steering Gmbh

Zf Lenksysteme Gmbh

Michael Hägele

Joachim Linde

Falk Hofmann

Kai Eckmann

Stefan Häussler

Stefan HÄUßLER

This invention is a steering system for a trailing or leading axle of a vehicle including a steering angle sensor, a driving speed sensor, an electric motor that drives a hydraulic pump, a working cylinder for steering wheels of the axle, which is joined to the hydraulic pump, a control device which determines a trailing angle of the wheels and which controls the electric motor, wherein the working cylinder has a center position borehole via which hydraulic fluid is emitted, and a piston seals the center position borehole in the straight position of the wheels, wherein the working cylinder is connected to return valves, via which hydraulic fluid can flow back into a tank, wherein the center position borehole is connected to a center position valve, via which hydraulic fluid can flow back into a tank, and wherein the return valves and the center position valve are poppet valves.

Growing community of inventors

Aalen, Germany

Michael Hägele