View Single Post
Old 04-14-2009, 11:19 AM   #132 (permalink)
oldbeaver
EcoModding Apprentice
 
Join Date: Oct 2008
Location: Chile
Posts: 223

Mercedes 89 D - '89 Mercedes 300 E
90 day: 33.86 mpg (US)

Skodie - '09 Skoda Octavia TDI PD
90 day: 38.84 mpg (US)

1993 Mercedes 300D Turbo - '93 Mercedes Benz 300D Turbo W124
90 day: 26.19 mpg (US)

Crossie - '16 Subaru XV Crosstreak
90 day: 9.61 mpg (US)

Crossie - '16 Subaru XV Crosstreak
90 day: 33.34 mpg (US)
Thanks: 15
Thanked 9 Times in 7 Posts
Thumbs up Using just throttle position and rpm and speed

That is interesting. Need to research the function: mpg = f(RPM, Thr, Speed)
Makes a lot of sense to me.

Question: how do you plan to translate it to reasonable results (even relative results serve as for testing modifications), and calibrate it?

Good idea. Nice if you share your progress on this.




Quote:
Originally Posted by dcb View Post
I do have something that is pretty cheap in mind for the mechanical diesels, but you have to install a throttle position sensor and a rpm or pump rotation sensor and a speed sensor, and I or someone has to teach the guino how to make sense of it.

I'm also thinking about just using a function like speed/(throttle position*rpm) for my bike too, to see if it is reasonably accurate.
  Reply With Quote