Zf Friedrichshafen Ag

Andreas Füßl

Matthias Reisch

Jürgen Wafzig

Notker Amann

Andreas Wendzel

Holger Gohmert

Lorenz Fischer

Michael Arnegger

Uwe Fehr

An electro-mechanical actuator for generating an axial actuation force is provided. The electro-mechanical actuator includes an electric machine having a stator () and a rotor (). The electro-mechanical actuator also includes a spindle drive with a rotary element () and with an element that is movable in a translatory manner. A rotation of the rotary element () may result in a translatory motion of the element that is movable in a translatory manner. The rotor () and the rotary element () of the spindle drive are coupled to each other in a circumferential direction (U) such that a rotation of the rotor () results in a rotation of the rotary element () of the spindle drive (). A rotational play () is formed between the rotor () and the rotary element () of the spindle drive in the circumferential direction (U).

Electromechanical actuator for generating an axial actuating force

A method of determining an angle of rotation and/or a rotational speed of a motor shaft () of a motor () which is designed to produce a translational movement of a control element () relative to the motor (). The method includes a step of reading in a movement signal via an interface with at least one sensor element () arranged outside the motor () such that the movement signal represents a translational movement of the control element () relative to the motor. In addition, the method further includes a step in which, using the movement signal, the angle of rotation and/or the rotational speed of the motor shaft () is/are determined.

Method and device for determining an angle of rotation and/or a rotational speed of a steering shaft

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Kressbronn am Bodensee, Germany

Andreas Füßl