Abstract

An energy storage system for a vehicle includes an ultracapacitor that is electrically coupled in parallel with a battery through a diode connected in series with the battery. The ultracapacitor delivers the energy required for all high current surges that occur during engine start, acceleration, and regeneration. The battery is used only to assist with longer duration, high energy loads, such as accessory loads when an engine of the vehicle is not running. In other words, the battery conducts only during longer and less-frequent pulses and, therefore, does not have to withstand high-power pulses.

Document Type

Patent

Primary Class

320/167

Secondary Class

320/104

Application Number

11/271596

Filing Date

November 2005

Patent Number

US7667438

Assignee(s)

Chrysler Group LLC; The University of Toledo

Publication Date

2-23-2010

Patent Country

US

Language

en_US

Institution

The University of Toledo

Repository

University of Toledo Libraries

Digital Publisher

Digital Initiatives

Rights

These materials are free of copyright restrictions and are in the public domain within the United States only. The USPTO reserves the right to assert copyright protection internationally.

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Rights Statement

Rights Statement

No Copyright - United States. URI: http://rightsstatements.org/vocab/NoC-US/1.0/
The organization that has made the Item available believes that the Item is in the Public Domain under the laws of the United States, but a determination was not made as to its copyright status under the copyright laws of other countries. The Item may not be in the Public Domain under the laws of other countries. Please refer to the organization that has made the Item available for more information.