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:
May. 19, 2015
Filed:
May. 01, 2012
Igor Dos Santos Ramos, Minnetonka, MN (US);
Andrew A. Knitt, Deer Creek, IL (US);
Wellington Ying-wei Kwok, Dunlap, IL (US);
Kaiyu Wang, Vernon, CT (US);
Igor Dos Santos Ramos, Minnetonka, MN (US);
Andrew A. Knitt, Deer Creek, IL (US);
Wellington Ying-Wei Kwok, Dunlap, IL (US);
Kaiyu Wang, Vernon, CT (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A system for detecting a short-circuited ultracapacitor cell in a machine is disclosed. The system may have a memory that stores instructions and one or more processors capable of executing the instructions. The one or more processors may be configured to perform cell balancing among ultracapacitor cells arranged within two or more ultracapacitor modules, each ultracapacitor module including at least two ultracapacitor cells connected in series. The one or more processors may be further configured to measure a module voltage generated by each of the plurality of ultracapacitor modules after performing the cell balancing and before applying a load of the machine to the ultracapacitor modules, and determine whether an ultracapacitor cell among the plurality of ultracapacitor cells is short-circuited based on a comparison of the measured module voltages.