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:
Feb. 17, 2015
Filed:
Mar. 31, 2011
Shinya Murabayashi, Saitama, JP;
Tamon Kimura, Saitama, JP;
Kiyofumi Shida, Saitama, JP;
Hiroaki Watanabe, Saitama, JP;
Kengo Kobayashi, Saitama, JP;
Yutaka Utsumi, Saitama, JP;
Shinya Murabayashi, Saitama, JP;
Tamon Kimura, Saitama, JP;
Kiyofumi Shida, Saitama, JP;
Hiroaki Watanabe, Saitama, JP;
Kengo Kobayashi, Saitama, JP;
Yutaka Utsumi, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
Provided is a fuel tank system wherein the liquid levels of fuel in two fuel storage portions can be equally maintained, and the fuel amount in each fuel tank can be estimated with a high degree of accuracy. The fuel tank system is provided with a fuel tank in which a main tank portion and a subsidiary tank portion are formed; a siphon tube which extends from the main tank portion to the subsidiary tank portion, to transfer fuel from one tank portion to the other tank portion; and an electronic control unit (ECU) for determining whether or not the fuel is transferred via the siphon tube (in the transfer state). The ECU determines that the fuel is in the transfer state when the change rate of a sender signal is equal to or less than a predetermined threshold value (VF_th).