Maxwell Technologies, Inc.

Ise Corporation

Christopher James

Brian D Moran

Robert Shaw Lynds

Robert Del Core

Ulf Carl Mikael Setterberg

Magnus Lindbäck

Rong Yan

Liesel Mathew Chiriyankandath

In one aspect, the invention comprises an apparatus for balancing cells in a series string of modules having cells. The apparatus comprises a processing system and a communication circuit. The processing circuit is configured to receive an average cell voltage value from each module. The processing circuit is further configured to determine an overall average cell voltage for all the cells. The processing circuit is also configured to cause each the modules to determine a relative capacitance for each of its cells and cause each of the modules to balance its cells based on the respective relative capacitances. The communication circuit is configured to receive the average cell voltage value from the modules.

Systems and methods for capacitor module balancing and maintenance

The present disclosure provides a method and system for powering a hybrid electric vehicle with a fuel cell, and in particular, efficiently initiating power generation in the fuel cell, the method and system comprising electrically connecting a battery to an ultracapacitor-based propulsion energy storage; using the battery to charge the propulsion energy storage to a predetermined voltage level for powering an air delivery compressor for a predetermined amount of time; disconnecting the battery from the propulsion energy storage; electrically connecting the propulsion energy storage to the air delivery compressor; operating the air delivery compressor using the charge on the propulsion energy storage to provide a predetermined quantity of air to the fuel cell; and causing the fuel cell to generate electricity.

System and method for initiating operation of a fuel cell hybrid vehicle

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San Diego, CA, United States of America

Christopher James