[Diy_efi] [off topic] performance meter app

[Avery Nisbet]

Tach input on the microphone + gear ratios manually input.  This could be
used for back up calculation of HP/Torque.


-Avery

2011/11/8 Carter Shore <clshore at yahoo.com>

> Since you are already capturing the data, and have a platform capapable of
> doing the calculations:
> Capture coast-down, and calculate the HP vs speed.
> Then calculate the aero Cd by subtracting out the extrapolations of
> mechanical drag.
> For 'dyno' feature, allow user to enter correction data like air temp,
> baro, relative humidity, etc.
> Could the camera phone take a high contrast frontal pic of the car, then
> do an estimate of the frontal area based on user input of measurements of
> some distinct linear dimension (ground to bottom of the door handle, etc.).
>
> Carter
>
> --- On *Mon, 11/7/11, Jonathan Bell <jonnbell at gmail.com>* wrote:
>
>
> From: Jonathan Bell <jonnbell at gmail.com>
>
> Subject: Re: [Diy_efi] [off topic] performance meter app
> To: "Ben P" <benof1987 at hotmail.com>
> Cc: "<diy_efi at diy-efi.org>" <diy_efi at diy-efi.org>
> Date: Monday, November 7, 2011, 1:17 PM
>
>
>  Keep us posted!  That looks great.
>
>
> Jonathan
>
> On Nov 7, 2011, at 10:58 AM, Ben P <benof1987 at hotmail.com<http://us.mc1136.mail.yahoo.com/mc/compose?to=benof1987 at hotmail.com>>
> wrote:
>
>   I'm considering writing a performance meter app for my android phone.
> It's about getting the features I want and proving I can more than anything
> else. So these are the features I want to implement :
>
> Vector based (no need for specific phone orientation, just constant
> throughout run)
>
> Graph output with selectable axis (i.e. Speed or time for y axis)
>
> Save/export function
>
> Additional calculations based on accelerometer data and user inputs (dyno
> plot, maximum possible g-circle, etc)
>
> "live" g-circle display
>
> User selectable time splits on both previously recorded and about to be
> recorded acceleration runs
>
> Is there anything else you would like to see?
>
> I don't intend to charge for distribution of this app if I do get it
> finished, although a donate version (possibly with skins or somethingelse)
>
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