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. 28, 2020
Filed:
Aug. 22, 2016
Daimler Ag, Stuttgart, DE;
Ford Motor Company, Dearborn, MI (US);
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Michael Procter, North Vancouver, CA;
Yosuke Fukuyama, Vancouver, CA;
Richard Fellows, Vancouver, CA;
Takeshi Shiomi, Burnaby, CA;
Daimler AG, Stuttgart, DE;
Ford Motor Company, Dearborn, MI (US);
Nissan Motor Co., LTD., Yokohama-shi, Kanagawa, JP;
Abstract
Improved methods are disclosed for shutting down and storing a fuel cell system, particularly for below freezing temperature conditions. The methods comprise stopping power production from the fuel cell stack, monitoring its temperature, and repeatedly performing a predetermined warming operation if the stack temperature falls to a normal threshold temperature. In the improved methods, either an initial threshold temperature and/or an initial warming operation are used that differ from the respective normal threshold temperature and the predetermined warming operation.