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:
Oct. 21, 2008
Filed:
Mar. 06, 2007
Koichi Awano, Saitama-ken, JP;
Atsushi Izumiura, Saitama-ken, JP;
Daisuke Sato, Saitama-ken, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A device for determining abnormality of a fuel supply system, which is capable of determining abnormality of the fuel supply system including a fuel pressure sensor more accurately. A device for determining abnormality of a fuel supply system that has a fuel pressure sensor for detecting pressure of fuel in an accumulator as detected fuel pressure calculates a predetermined normal-time fuel pressure indicative of pressure fuel in the accumulator which is to be detected when the system is normal, according to a fuel flow rate relationship parameter indicative of a relationship between an inflow fuel amount parameter indicative of an amount of fuel flowing into the accumulator and an outflow fuel amount parameter indicative of an amount of fuel flowing out of the accumulator, and determines abnormality of the fuel supply system based on a result of comparison between the detected fuel pressure and the calculated normal-time fuel pressure.