^ Really, we should talk sometime

I believe ford, GM, and BMW have semi active systems based on the same concepts. Our client sells to all, and manufactors just the control system, values and pumps.
The systems are based on much of what you experienced, the idea being not to loose travel energy, but to store and control it's release, again much like ABS.
This is much different then what we played with long ago, which was total hydro control, with hi PSI pumps and super fast (for the time) processing. It was a dead end idea.
The new part is that it is DC based, which seems to be the focus now, given the energy issue is back. I think there is no question hyrdogen will be the future fuel, be it internal or fuel cell based. If you really look at it, there is no other direction we can go, hence the start of more electric based sub-systems.
There is currently alot of developement going on with these sub-systems. I have seem a very efficent electric based AC system of instance. It worked VERY well, and you should see it out soon
But hey, the biggest issue in automotive engineerig these days?
How do we get people out of there SUV's and back into small cars, before we run out of oil
**Dry your asking the wrong guy, not with C-Systems anymore.