The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 2016
Filed:
Dec. 18, 2013
I.g. Bauerhin Gmbh, Gruendau, DE;
Axel Farr, Waechtersbach, DE;
Jochen Michelmann, Gelnhausen, DE;
I.G. BAUERHIN GMBH, Gruendau, DE;
Abstract
The invention relates to a method and an apparatus for capacitive seat-occupancy recognition for vehicle seats. The apparatus which is based on the method comprises a reference capacitor that possesses a capacitance with respect to a first reference potential of a vehicle, an electrode integrated into a seat sensor that possess a capacitance with respect to a first reference potential, an at least parasitically-present capacitance of the sensor electrode with respect to a second reference potential or the vehicle ground, a first switch that connects the reference capacitor and a reference-voltage source of known voltage connected with the reference potential, a second switch that connects the sensor electrode with reference capacitor, and a third switch that connects the sensor electrode with the reference potential and the at least parasitically-present capacitance with the vehicle ground.