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:
Jan. 03, 2012
Filed:
Nov. 02, 2007
Ri-a Ju, Suwon-si, KR;
Dong-rak Kim, Suwon-si, KR;
Jin-hong an, Suwon-si, KR;
Ho-jin Kweon, Suwon-si, KR;
Sang-kyun Kang, Suwon-si, KR;
Ri-a Ju, Suwon-si, KR;
Dong-rak Kim, Suwon-si, KR;
Jin-hong An, Suwon-si, KR;
Ho-jin Kweon, Suwon-si, KR;
Sang-kyun Kang, Suwon-si, KR;
SAMSUNG SDI Co., Ltd., Gyeonggi-do, KR;
Abstract
A fuel cell system capable of computing fuel level stored in a fuel tank, and more particularly to a fuel cell system capable of computing fuel level without using a flux sensor or flow rate sensor includes: a fuel tank storing fuel; a stack for generating electricity by the electro-chemical reaction of the fuel; a fuel pump for transferring fuel from the fuel tank to the stack; a fuel pump for transferring the fuel from the fuel tank to the stack; a pumping controller for generating a pump control signal controlling the pumping operation of the fuel pump; and a fuel level computing unit for computing the amount of fuel used and fuel level from the waveform of the pump control signal. In some embodiments, the fuel cell system informs a user when the fuel level is low, with reduced manufacturing costs.