Hi all
this is a document I've seen around so many of you could have already seen it. It describes the Hydractive II system.
Steve, if you look the schemas at pages 3 and 4, the detail of the little ball that controls LHM cross-flow (and car roll, consequently) is described. You can see that when the middle sphere is "out" (=hard suspension) the only path for LHM to flow is the one where the ball is housed.
I am not sure as to what is the situation with that in an HI system. Surely there is a system for equalising pressures between left and right sides if car is kept in "hard", but think the roll-cotrol feature is not there. If anybody knows...
cheers
George