Patent · US Active

Capacitive sensor for a vehicle

US9442145B2 · kind B2 · utility

1Cited by

3References

5Claims

0Family size

Assignee

Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Hallstadt · DE

Inventors

Florian Pohl · Ebersdorf, DE
Holger Wuerstlein · Zeil am Main, DE

Key dates

Filing date	Sep 10, 2014
Grant date	Sep 13, 2016
Priority date	—
Expiry date	Oct 24, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/960765
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A capacitive sensor for a vehicle includes an evaluation unit as well as a first transmission electrode and a second transmission electrode for transmitting a respectively associated first measurement signal and second measurement signal. The two transmission electrodes are connected to a respective first and second transmitter output of the evaluation unit through an assigned first and second transmission line respectively. The evaluation unit alternately outputs the first measurement signal via the first transmitter output and the second measurement signal via the second transmitter output. The evaluation unit also connects the respective non-transmitting second or first transmitter output to reference potential. Alternatively, a common transmission electrode may output the measurement signal which is then picked up by first and second receiver electrodes.

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