Quote:
Originally Posted by NeilBlanchard
What it cannot do is also provide storage for energy that comes from outside the vehicle i.e. like the battery in an electric hybrid.
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welll .... it can actually be scaled into a Plug-HH ... where a external source of energy is used to charge a larger capacity accumulator , or other energy storage for it ... it would have issues , but it can be done.
For example AFAIK current storage tech would allow for up to about ~50wh/L energy per volume ... and ~130 wh/kg energy per weight... these are ok numbers ... will use more space than chemical energy based batteries to store the same amount of energy ... but the weight is on par with average modern batteries , but not as good as the best modern batteries.
It also isn't being mass produced like batteries are the world over for a wide variety of things... not that it couldn't be ... but it isn't ... the battery has a large established production and market head start on it.
Quote:
Originally Posted by NeilBlanchard
It is more efficient at regenerating energy than is an electric hybrid
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As I posted previously in this thread ... I don't agree with that over-generalization.
A specific HH design can be more or less cycle efficient than a specific HEV design ... the devil will be in the details of the two designs being compared ... and the conditions of the comparison ... It is not a given that the HH is more cycle efficient Mechanical back to mechanical cycle efficiency.
Quote:
Originally Posted by NeilBlanchard
Any advantage a hydraulic hybrid may have will be in the real world functionality over time. Does the accumulator hold up over a long enough time to be practical? Does the hydraulic fluid itself need to be replaced, or is it flammable, or caustic, or poisonous? Does it have enough storage capacity to allow the ICE to be smaller and more optimal because it gets assisted by the hydraulics?
We'll see when we have these cars on the road.
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