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Old 04-18-2011, 10:15 PM   #2 (permalink)
skyl4rk
Coasting Down the Peak
 
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Join Date: Jun 2008
Location: M I C H I G A N
Posts: 514

Toyauto Pickup - '94 Toyota Pickup 2WD
90 day: 36.32 mpg (US)

Versa Base - '09 Versa Sedan 1.6 Base
Team Nissan
90 day: 41.69 mpg (US)
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I have thought about hacking something like this. My Versa has a drive by wire system, and I believe the throttle is controlled by voltage level, 0 to 5V. I would like to put together an algorithm that inputs rpm, engine load and mph, and outputs an ideal throttle position. When I get to 5th gear (top gear), I would press a button to accelerate using the algorithm, and then at the target speed, press another button to kill the motor, and manually disengage the gear, using the clutch if necessary.

Your idea automates more of the process, but I think I could actually build a system that automatically throttles up to a target speed in high gear. The algorithm could be modified and experimented with to find the optimal curve.

The automated system would make doing 35-50mph EOC very easy, and every pulse would be using the most efficient throttle method that you could work out by experimentation.
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