Rotary sensor and steering system for a motor vehicle

Abstract

A rotary sensor for a steering system of a motor vehicle comprises a ring gear which is rotatably mounted in a housing about an axis (A), having an internal toothing, and a coupling element designed for connection to a steering shaft that can be rotated about its longitudinal axis (L), wherein the housing has an axial end wall, an axial inner wall, and a coaxially running circumferential wall, wherein the ring gear is arranged axially between the end wall and the inner wall and is circumferentially enclosed by the circumferential wall with respect to the axis (A), and wherein at least one measuring wheel, which has a magnetic element, is rotatably mounted in the housing and meshes with its external toothing in the internal toothing of the ring gear, and wherein measuring elements cooperating with the magnetic elements of the measuring wheel are mounted in the housing. In order to improve operational safety and to enable a more compact design, the end wall and the inner wall may be formed continuously closed over an interior enclosed by the internal toothing.

Dependencies are inferred from the claim text.