Quote:
Originally Posted by wnut
Anything that is "active" has to be more complicated and expensive than a "passive" system.
|
Certainly not true.
An analogy. 20 years ago, we have pretty good SLR cameras. They opened a shutter, exposed a film. Pretty simple, passive, stuff.
Nowadays, film SLR's are DEAD. Completely overtaken by much more complicated (at first) digital devices, that are now hugely CHEAPER for much higher specifications. Once the initial development was done, it's almost all software. Note I said almost, there are always improvements in the HW but these are evolutionary not revolutionary.
So, a prime example where active has turned out to be much cheaper and better than passive.
Back to he point in hand. You simply cannot compare the active suspension of the past with anything that could be developed today. Not only has computer power got hugely more powerful, but sensor technology and manufacturing accuracy has also greatly improved. And all at cheaper prices.