Patent · US Active

Angle-measuring device for a rotationally driven linear actuator

US10731737B2 · kind B2 · utility

3Cited by

2References

9Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Markus Dietrich · Regensburg, DE
Laszlo Man · Bühl, DE
Peter Greb · Ottersweier, DE

Key dates

Filing date	Aug 24, 2016
Grant date	Aug 4, 2020
Priority date	—
Expiry date	May 14, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2025/2078
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An angle-measuring device is provided for a rotationally-driven linear actuator, which can be implemented into a clutch actuator. A rotor element has an axis of rotation and rotates concentrically with a rotor of a rotary drive for an axially movable linear actuator element. A measurement magnet arrangement is fixed relative to the rotor element and has a polarization. The polarization is oriented in such a way that the magnetic field lines can change with a rotation of the rotor element so as to enable the angle to be precisely determined from at least one measurement position. At one location, a 360-degree sensor is provided for measuring angular positions based on the measurement magnet arrangement. At another location, a revolution-counting sensor is provided for counting a number of revolutions carried out based on the measurement magnet arrangement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.