Quick summary of my setup:
Volvo 2.8l I-6 with E46 M3 individual throttle bodies
E46 M3 three-wire IAC valve
E-throttle actuator from a BMW S85
Idle Control Question:
To get smooth tip-in and tip-out I am blending idle valve airflow before the throttle plates open with a 3D idle base position table, see relevant tables below:
This works really well and I am overall very happy with the low-speed driveability. The issue is I can't get the ECU to jump out of closed loop idle control properly so I'm forced to run open loop. Since I have idle control with a solenoid valve the "AP/TP Lockout %" seems hard coded to TP%. If I switch on closed loop idle it will control idle great, but I can sit in the car and pump the pedal to my hearts content from 0-5% AP and get no change in idle valve position, effectively nulling the tip-in and tip-out smoothness I get from the 3d base position table. Is there a way force the ECU to jump out of closed loop on AP% while using a solenoid valve?
E-throttle questions:
Are there any plans to add a feed forward table to the E-throttle control? A way of doing gain scheduling would also be extremely useful, even if it's just different PID parameters for opening and closing the throttle. Sometimes just one set of P, I, and D terms doesn't work out quite as well as I'd like, especially with the lack of a feed-forward table.