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. 28, 2015
Filed:
Dec. 16, 2009
Hiroyuki Takahashi, Aichi, JP;
Takatoshi Tanabe, Ichinomiya, JP;
Hiroyuki Takahashi, Aichi, JP;
Takatoshi Tanabe, Ichinomiya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
A collision detection device which can determine in a short time a collision to each portion of a chamber member in the longitudinal direction thereof and which is highly reliable. A collision determination system () is provided with: a chamber member () which is disposed with the longitudinal direction thereof aligned with the vehicle width direction, has a pressure chamber () formed therein, and is provided forward of bumper reinforcement (); a pair of pressure sensors () which is provided to the chamber member () at positions spaced from each other in the longitudinal direction thereof and outputs a signal corresponding to a variation in the pressure within the pressure chamber (); and a collision determination ECU (). The ECU () determines that a collision has occurred if the value of detection by either of the pair of pressure sensors () is greater than a first threshold value and, at the same time, the value of detection by the other of the pair is greater than a second threshold value which is set to be greater than the first threshold value.