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I might be chasing my own tail here a bit so I thought I'd ask the experts.
I have a car with a MaxxECU, turbo gasoline engine, adjustable fuel pressure regulator with boost/vac reference port, and a fuel pressure sensor plumbed in at the end of the fuel rails.
The fuel system is plumbed: fuel pump -> fuel rails -> AFPR -> fuel tank.
This winter we're going to dual intank pumps with PWM driver modules. The intention is to setup PID control to handle the PWM to the pumps so as to target a specific fuel pressure number - lets say 3bar - under all load conditions, and just vary the speed of the pumps.
Where I'm stuck: This motor is going to see at least 1bar of boost, and typically we setup AFPR to manifold reference for 1:1 fuel pressure rise with MAP. This is confusing me with setting up the PID/PWM aspect...
If I setup a table with MAP 100 to 200 as an axis, and set the fuel pressure target as 300 - 400, would that work or am I simply doubling the efforts of the reference regulator?
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