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:
Aug. 30, 2022
Filed:
Jun. 30, 2020
Nikola Corporation, Phoenix, AZ (US);
Robert Bosch Gmbh, Stuttgart-Feuerbach, DE;
Kevin Lynk, Phoenix, AZ (US);
Jesse Schneider, Chandler, AZ (US);
Arpad Imre, Vaihingen, DE;
Werner Belschner, Michelbach An der Bilz, DE;
Peter Eckert, Bretzfeld, DE;
Jorg Heyse, Besigheim, DE;
Nikola Corporation, Phoenix, AZ (US);
Robert Bosch GmbH, Stuttgart-Feuerbach, DE;
Abstract
The invention relates to a method for operating a fuel cell system () using a first operating mode, in which, when all of the fuel cell stacks () are inactive, one fuel cell stack () is pre-heated using a coolant that is pre-heated by means of an electric heater () while bypassing all cooler circuits () of the active coolant circuits () via bypass lines () and the one pre-heated fuel cell stack () is activated in order to pre-heat an additional fuel cell stack () of the fuel cell system. Other operating modes for operating a fuel cell system are disclosed in additional embodiments.