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Unread 14-01-2014, 16:52
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Re: 1212 pneumatic catapult prototype

Quote:
Originally Posted by Ether View Post
I wonder if you could treat the solenoid like a MOSFET and PWM it. Has anyone ever tried that?


This is how the turbo boost control works on my Subaru. Or at least how it used to work before I built my own boost controller.

A quick test should show if the valve can respond quickly enough - listen for the chatter and find the frequency it stops chattering.

Another idea for catapult distance adjustment would be to open the valve for a varying time. A slower valve that cannot be pwm'd may still be fast enough for one opening and one closing within the filling time.

Graham.
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