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Old 12-29-2011, 10:06 AM   #5 (permalink)
briank
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Join Date: Mar 2011
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I was always aware that angular velocity (and perhaps angular acceleration) of the gas pedal depression had an effect similar to pushing the accelerator a greater distance. It seems even the angular velocity is taken into account by the transmission. This is why I have to ease the accelerator forward slowly. Maybe I have to put in a one way damper as well. (Probably not for safety reasons)

I think every drive-by-wire car could easily be fitted with an economy mode button whereby only larger accelerator displacements tell the ECU to increase EFI duty cycle/downshift (linear relationship). A normal and sports mode could then take into account angular velocity. If only I could get at the software that controls this. It would be nice if manufacturers had a "hidden" feature to set such modes. (like holding down odometer button, while pressing the gas pedal 10 times while key is ACC position) I think a car with such a hidden feature would get a "cult" following among the eco crowd. I've driven a few cars with an eco mode which controls the transmission shift points.
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