IDiyas

For the Inventor, By the Inventor

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.:

US 9444112 B1

PDFFull Text
Date of Patent:
Sep. 13, 2016

Filed:

Apr. 01, 2014

Fuel cell monitoring device

Applicants:

Denso Corporation, Kariya, Aichi-pref, JP;

Nippon Soken, Inc., Nishio, Aichi-pref, JP;

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Yuji Ishikawa, Aichi-ken, JP;

Ikuyasu Kato, Obu, JP;

Takashi Yamada, Hekinan, JP;

Yuichi Sakajo, Toyohashi, JP;

Keigo Suematsu, Toyota, JP;

Assignees:

DENSO CORPORATION, Kariya, Aichi-pref., JP;

NIPPON SOKEN, INC., Nishio, Aichi-pref., JP;

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Jane Rhee

Int. Cl.
CPC ...
H01M 4/66 (2006.01); H01M 8/04 (2016.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04119 (2013.01); H01M 8/04388 (2013.01); H01M 8/04395 (2013.01); H01M 8/04492 (2013.01); H01M 8/04552 (2013.01); H01M 8/04582 (2013.01); H01M 8/04641 (2013.01); H01M 8/04701 (2013.01); H01M 8/0441 (2013.01); H01M 8/04402 (2013.01); H01M 2008/1095 (2013.01); Y02E 60/50 (2013.01);
Abstract

In a fuel cell monitoring device, a gas-diffusion resistance calculation section calculates a gas-diffusion resistance Rindicating a difficulty of diffusing reaction gas to a catalyst layer in a fuel cell based on a gas reaction resistance Rcalculated by a resistance calculation section. A second diffusion resistance calculation section calculates a second diffusion resistance Rvarying depending on a dried-up in the fuel cell based on a proton transfer resistance Rcalculated by the resistance calculation section. A first diffusion resistance calculation section calculates a first diffusion resistance Rvarying depending on a flooding in the fuel cell by subtracting the second diffusion resistance Rfrom the gas-diffusion resistance R. A water content calculation section calculates a water content of the fuel cell based on the first diffusion resistance. A recovery control section adjusts the water content in the fuel cell based on the calculated water content.

Find Patent Forward Citations

Loading…