Patent · US Active

Heatable touch sensor and steering wheel having such a touch sensor

US11590999B2 · kind B2 · utility

0Cited by

8References

13Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Branislav Zlatkov · Braunschweig, DE
Zoran Djinovic · Dillmonhof, AT
Nils QUANDER · Braunschweig, DE
Markus Danschacher · Braunschweig, DE
Klaus Utech · Lehre, DE
Patrick Nickel · Birstein, DE

Key dates

Filing date	May 31, 2019
Grant date	Feb 28, 2023
Priority date	—
Expiry date	Apr 21, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/35306
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The invention relates to a heatable touch sensor and a steering wheel. It has an optical waveguide which is connected to an electrical heat conductor. The optical waveguide changes its transmission behavior, which is determined, with a change in position or bending. The heat conductor is a resistance heater which emits heat by applying an electrical voltage and by the associated current flow. The touch sensor operates by means of optical interferometry, which enables a very high sensing accuracy.

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