Quote:
Originally Posted by ML
Why not run the active aero off a accelerometer. Car weight distribution would seem to be more relevant than brake pressure, which could change on the track.
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Accelerometers typically produce pretty noisy data, so you need to use some filtering, which will most likely introduce some delays, making the whole system less effective (aero helps the most when you start braking).
You may also introduce a positive feedback loop, where as you progressively press on the brake pedal you first have low deceleration, and then the aero kicks in as soon as you a certain amount of deceleration. This may make the car respond non-linearly to increasing deceleration rate. The unpredictable delay will only make this effect worse, kinda similar to a turbo lag.