Quote:
Originally Posted by Toma
So the control is actually the very very easy part. Even if it was a simple open loop duty cycle table with rpm and tps or mph as the axis. There are ecu boost control devices on the market that can be mapped on a laptop to do it, for like $250.
The hard part is generating enough boost to where someone would actually want it tapered down. ie, the mechanical and electrical parts.
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none of them are open source, and $250 is far more expensive than what could be achieved with an open source stack.
it's never a good idea to start a project without considering future advancements in the domain. this is why game developers write game engines to exploit hardware that won't be available for years to come.
i believe it is important not to presume that the state of affairs today will be the state of affairs 5 years, or even one year from now. it's quite possible that you'll have your 20psi within a reasonable timeframe, with all of the money being dumped into battery research these days. in any case you'd want to be prepared for that eventuality.
taken into consideration with the fact that such a system to control boost has other benefits outside the scope of this particular argument, and that the development effort is relatively low compared to the other elements involved (as you alluded to in your post), it seems like a no brainer to do it right and do it once.