06-18-2013, 02:23 PM
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#11 (permalink)
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A True Z Fanatic
Join Date: Jan 2012
Location: Dallas/Ft.Worth
Posts: 3,349
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Quote:
Originally Posted by wstar
Well, we have no idea what happens with ETC Off, really. I mean, we know it disables all the wild throttle interference from things like VDC and SRM and Torque Management, and more-or-less opens the virtual butterflies as commanded by the pedal. I don't think anyone's experimented to see if the ECU's throttle table still affects that pedal->throttle mapping at all in some way, or it falls back on some fixed values (I bet fixed, though), or what those fixed values might be.
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It uses fixed values for sure. What we haven't determined yet apparently is what those values are.
So if I put the car to 'On' and sweep the accelerator through fully closed and fully opened slowly, while logging accelerator position and throttle position, I should be able to make a graph in excel showing them in relation to each other.
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