Patent · US Expired

Rotation angle measuring device with magnetized commutator

US6710480B1 · kind B1 · utility

5Cited by

13References

20Claims

0Family size

Assignee

Valeo Auto-Electric Wischer und Motoren GmbH · DE

Inventors

Udo Baumeister · Durmersheim, DE
Ronald Frey · Bönnigheim, DE
Eberhard Högler · Erligheim, DE
Peter Andres · Ginsheim-Gustavsburg, DE

Key dates

Filing date	Nov 27, 2000
Grant date	Mar 23, 2004
Priority date	—
Expiry date	Nov 27, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/145
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a rotation angle measuring device for an electrical machine. To provide a simple and compact measuring device of this kind, the invention provides for the commutator of the machine to be magnetized and for the magnetic field which rotates with the commutator to be evaluated by means of a suitable sensor. Advantageous improvements relate to a suitable structure for the commutator.

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