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. 27, 2018
Filed:
Jul. 21, 2014
Applicant:
Honda Motor Co., Ltd., Minato-Ku, Tokyo, JP;
Inventors:
Kiyohide Hibino, Utsunomiya, JP;
Chikara Iwasawa, Saitama, JP;
Assignee:
Honda Motor Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2016.01); H01M 8/04492 (2016.01); H01M 8/04828 (2016.01); H01M 8/04537 (2016.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04492 (2013.01); H01M 8/04649 (2013.01); H01M 8/04828 (2013.01); H01M 8/04835 (2013.01); H01M 2008/1095 (2013.01);
Abstract
A method of controlling humidification of a fuel cell includes the steps of measuring impedance of the fuel cell, and adjusting humidification quantity of the fuel cell based on an imaginary axis value Xi and a real axis value Xr on a complex number plane of the measured impedance after the measurement step. In the measurement step, impedance is measured based on supply of alternating current having one frequency of 10 Hz or less during power generation of the fuel cell.