Patent · US Active

Sensor arrangement for capacitive position detection of a hand on a steering wheel

US11283446B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. · LU

Inventors

Thomas Faber · Schweich, DE
Gianluca Favalli · Aubange, BE
Heinrich Gierens · Trier, DE
Laurent Lamesch · Reichlange, LU
Michael Putz · Trier, DE

Key dates

Filing date	Nov 22, 2019
Grant date	Mar 22, 2022
Priority date	—
Expiry date	Nov 22, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/9622
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A sensor arrangement for capacitive position detection of a hand on a steering wheel. The sensor arrangement includes: a plurality of capacitive sensors disposed along a detection surface, which is an outer surface of the steering wheel, each sensor having at least one sensor electrode; and a measurement device electrically connected to the sensors. In order to increase the reliability of capacitive hand detection on a steering wheel, the measurement device is adapted to perform a sequence of detection operations, and in each detection operation, to activate at least one sensor by applying a detection signal to its at least one sensor electrode in order to capacitively detect the hand while grounding at least one other sensor by connecting at least one of its sensor electrodes to ground, and to activate different sensors in consecutive detection operations.

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