Sensorsystem, Lenksteuerungssystem und Verfahren zur Bestimmung eines Drehwinkels

Details

Veröffentlichungs-Nr.

EP2706326

Aktenzeichen

EP12183495

Anmeldetag

7. September 2012

Veröffentlichung

16. Dezember 2015

Erteilung

16. Dezember 2015

Rechtsraum

EP

IPC

G01D5/14

Abstract

A sensor system is to be used with an arrangement comprising a rotatable axis (AX) that is arranged rotatable within a stator (ST), a ring magnet (RM) that is mounted to the rotatable axis (AX) for co-rotation and longitudinally shiftable, and shifting means (SM) for translating a rotational movement of the rotatable axis (AX) into a longitudinal movement of the ring magnet (RM). The sensor system comprises at least two sensor elements (HS1, HS2) for detecting a multidimensional magnetic field intensity, each configured to provide respective sensor values for at least two spatial dimensions, and an evaluation circuit (EV). The sensor elements (HS1, HS2) are arranged spaced apart from each other. The evaluation circuit (EV) is configured to determine a relative rotation angle (RR) based on the sensor values of at least one of the sensor elements, to determine a longitudinal position information (LP) based on the sensor values of both sensor elements (HS1, HS2), and to determine an absolute rotation angle (AR) based on a relative rotation angle (RR) and the longitudinal position information (LP).

Anmelder

Firma

ams AG

Land

🇦🇹 Österreich

Fachgebiete