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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 8206861 B1

PDFFull Text
Expired
Date of Patent:
Jun. 26, 2012

Filed:

Jun. 03, 2006

Intermediate circuit with a first switch for switching a fuel cell stack and second switch for short-circuting the fuel stack, fuel cell system with an intermediate circuit, and method for controlling the intermediate circuit

Applicants:

Markus Aberle, Dettingen, DE;

Juergen Hoermann, Aitrach, DE;

Inventors:

Markus Aberle, Dettingen, DE;

Juergen Hoermann, Aitrach, DE;

Assignee:

Daimler AG, Stuttgart, DE;

Attorney:

Crowell & Moring LLP

Primary Examiner:

Basia Ridley

Assistant Examiner:

Sean P Cullen

Int. Cl.
CPC ...
H01M 8/04 (2006.01); H01H 19/64 (2006.01); H01H 31/10 (2006.01); H01H 33/52 (2006.01); H01H 47/00 (2006.01); H01H 85/46 (2006.01); H01H 35/00 (2006.01); H01H 83/00 (2006.01); H01H 33/59 (2006.01); H01J 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An intermediate circuit for controlling the connection of a fuel cell stack to a load bus includes three switching elements arranged in a pi configuration. At least one such switching element is provided for short circuiting either or both of the fuel cell stack and the load bus, while a further switching element controllably interrupts the line connection between the fuel cell stack and the load bus. The respective switches are driven according to a control method that accommodates start-up operation, switch-off operation, emergency shut down, and a self diagnostic mode.

Find Patent Forward Citations

Aberle, Markus. (2012). Intermediate circuit with a first switch for switching a fuel cell stack and second switch for short-circuting the fuel stack, fuel cell system with an intermediate circuit, and method for controlling the intermediate circuit (U.S. Patent No. 8206861). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8206861

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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