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. 23, 2010
Filed:
Nov. 10, 2005
Christian Bour, Domprix, FR;
Andreas Petereit, Schweich, DE;
Christian Bour, Domprix, FR;
Andreas Petereit, Schweich, DE;
Abstract
A collision recognition device for a vehicle is proposed, comprising a pressure sensor with a first electrode and a second electrode, both having first and second ends, the second end of the first electrode being connected to a first terminal of a first resistor, the second end of the second electrode being connected to a first terminal of a second resistor During use, a first voltage Vis applied to the first end of the first electrode, a second voltage Vis applied to a second terminal of the first resistor so that a voltage difference between said first terminal of the first resistor and said second terminal of said first resistor forms a first status voltage indicative of circuit integrity. A first signal voltage Vat the second end of the second electrode is indicative of whether said first and second electrodes are in contact. During a collision, the two electrodes are pressed together in the collision zone, which creates an electrical contact in this region. The signal voltage Vthus changes, and a collision can be detected. A fourth voltage Vis applied to the first end of the second electrode and a fifth voltage Vis applied to a second terminal of the second resistor so that a voltage difference between the first terminal of the second resistor and said second terminal of the second resistor forms a second status voltage indicative of circuit integrity.