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There are already threads about this design and a group of students (4th year engineering) at Virginia Tech looked at the idea for a year and did a lot of calculations with an 82 page report prepared. They found the concept to be valid with a drive at each wheel producing 35 HP and 385 pounds feet of torque from the first revolution of each wheel X 4.
The discussion of whether to use electric power or IC power for the primary source of accumulator pressure replensihment has also been covered in threads here over the past several years. In fact the patent is now due for a "maintenance fee" which occurs 3 times in the 17.5 years the patent is effective, with 3 of those years already passed.
I would be more of an advocate of electrical power if the battery technology had improved at a greater pace. The patent was issued in March of 2010.
As far as continued discussions of this in this forum, I don't really see that as necessary. You can revive the several threads from the last few years by searching under the topic of "hydraulic hybrid".
My focus now is on actually building a vehicle as well as a drive to use in that vehicle. Based on the positive conclusions of the group of students at Tech, that is my pathway to further development at this time. This process is ongoing.
Thanks for the interest.
regards
Mech
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