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:
Apr. 26, 2016
Filed:
Jul. 07, 2011
Eric Grandemange, Strasbourg, FR;
Pierre-benoit Prud'homme, Strasbourg, FR;
Etienne Aufrere, Geispolsheim, FR;
Quang Huong, Erstein, FR;
Eric Grandemange, Strasbourg, FR;
Pierre-Benoit Prud'Homme, Strasbourg, FR;
Etienne Aufrere, Geispolsheim, FR;
Quang Huong, Erstein, FR;
Delphi Technologies, Inc., Troy, MI (US);
Abstract
The invention relates to an algorithm for detecting activation of a tactile pressure sensor having a mechanic structure that includes the steps of: (a) measuring periodically an input quantity (V; f) of the sensor, when it is not pressed, the period being set according to sensor dynamic requirements; (b) computing a current idle quantity (Vidle; fidle) depending on the input quantity (V; f) measured at step a); (c) computing an activation threshold (ΔVP; ΔfP) based on a quantity characterization of the sensor mechanic structure and depending on the idle quantity (Vidle; fidle) defined at step b); (d) comparing the sensor input quantity (V; f) with the last defined idle quantity (Vidle; fidle) increased by the activation threshold (ΔVP; ΔfP) computed in step c) in order to determine whether the sensor is pressed or not.