Patent · US Active

Optical steering angle sensor for determining the absolute value of the steering angle

US8131425B2 · kind B2 · utility

1Cited by

6References

9Claims

0Family size

Assignee

TAKATA-PETRI AG · DE

Inventors

Horst Muller · Florstadt, DE
Holger Franz · Aachen, DE
Thomas Sauerwein · Viernheim, DE
Markus Stollberg · Eitorf, DE

Key dates

Filing date	Dec 17, 2007
Grant date	Mar 6, 2012
Priority date	—
Expiry date	Feb 28, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB62D15/0245
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An optical steering angle sensor for determining the absolute value of the steering angle even when a steering wheel has been revolved several times is provided, having a stator, a rotor with a barcode and evaluation electronics. In one form, the invention provides for the rotor to have a track groove which is arranged in the form of a worm in order to determine the number of revolutions, which track groove has an associated driver finger on the stator, which engages in the track groove and is arranged in a bearing such that it can pivot, and has a holder for a magnet which can pivot with the driver finger and which driver finger has an associated stationary Hall sensor, which is provided in an evaluation circuit.

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