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Old 10-16-2011, 07:11 PM   #51 (permalink)
wstar
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Join Date: Mar 2009
Location: Houston, TX
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Drives: too slow
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Well, even the "naive" approach will open that up for you, supposedly. The point of this exercise is to get that benefit while retaining a smooth, predictable response. I imagine some people will actually feel like their car is slower on my map, because in theory it should smooth the acceleration curve, resulting in less Jerk and/or Jounce which, I believe, is what leads people to believe the car has a very "snappy" throttle response based on Seat-of-the-Pants. I prefer predictability.

I have some more datalogging to do to back this up, and to make some estimation about how the 3800's concept helps low RPM driving force in general (smoothed out or not).

My plan for those charts is to log basically just rpm-vs-time (plus a few other parameters for my own validation) as an accurate vehicle speed metric, do it for a 2nd gear pull flooring the pedal from 1500 RPM on a few different maps (assuming I can do that without wheelspin, otherwise I'll go to 3rd again), and then derive accel -> jerk -> jounce data from that, or at least to whatever practical limit there is in the data.
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