A fellow I work with, knowing my pre-occupation with Hybrids, gave me an article from IEEE Power & Energy magazine. I found the article on line, but we can only look at the abstract without an IEEE membership. I will post the site and if anyone has access maybe they can download the PDF and share it.
http://ieeexplore.ieee.org/xpl/tocresult.j...1&puNumber=8014
Look about half way down the page for the links to articles on HEV and Hybrids.
Billy