Zf Lenksysteme Gmbh

Robert Boschgmbh

Zf Friedrichshafen Ag

Andreas Kruttschnitt

Wolfgang Runge

Arthur Rupp

Rainer Schaenzel

Arnulf Heilig

Wolfgang Abele

Hans Hofmann

Hendrik Buering

Ralf Redemann

Vitali Haag

Ossmane Krini

Stefan Scherb

Uwe Wietzel

Wolfgang Walter

Jochen Nussbaumer

Jürgen Hörsch

A steering device for a vehicle includes a steering rod and at least one drive unit, wherein the steering rod can be displaced along its longitudinal extent by the drive unit. The steering device also includes at least one first sensor device for determining a displacement position of the steering rod. The steering rod, as seen along its longitudinal extent, exhibits at least one change in its cross section, in particular diameter, wherein the first sensor device is designed to sense the change.

Steering device

A superimposed steering system for a vehicle, e.g., a servo-assisted or power steering system for a motor vehicle, includes a differential drive, which is configured as a shaft drive and has a first input shaft and a second input shaft, for superimposing the rotational angles that occur in the first and second input shafts on an output shaft of the differential drive. The output shaft acts on an input shaft of a steering gear. The first input shaft interacts with a steering handle by a steering shaft and the second input shaft interacts with a servo motor. A superimposed steering system may apply an additional steering angle, without play, to the output shaft and may have a simple, cost-effective, space-saving construction, while being easy to install. The first input shaft is directly connected in a detachable manner to a radially flexible flex-spline of the shaft drive, the first input shaft passing through an eccentric drive core of the shaft drive, which extends into the radially flexible flex spline.

Superimposed steering system for a vehicle

For a hydraulic servo-assisted steering system for motor vehicles, classifying storage of the respectively measured, actual valve characteristic curves is provided and, corresponding to this, energization characteristic curves for the magnetic actuator of the converter are provided, which may be paired in a classified manner in order to compensate for deviations from a predefined set valve characteristic curve, and a testing method for such a hydraulic servo-assisted steering system is provided, in which the loading pressure of the servo actuator is influenced as a function of an input steering torque and in a speed-dependent manner, the speed-dependent influence being effected via the electro-hydraulic converter, whose energization may be set in a manner superimposed on the speed-dependent definition with regard to the correction of tolerances.

Hydraulic servo-assisted steering system for vehicles and a controlling method for a steering system of this type

Method for mounting a steering valve with a centring unit

Growing community of inventors

Heidenheim, Germany

Andreas Kruttschnitt