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Old 05-28-2014, 04:33 PM   #8 (permalink)
minispeed
EcoModding Apprentice
 
Join Date: Feb 2012
Location: Burlington, ON
Posts: 158

minispeed-Insight - '00 Honda Insight
90 day: 82.15 mpg (US)

MDX - '01 Acura MDX Touring
90 day: 22.29 mpg (US)

the wife's car - '13 Toyota Prius Plus
90 day: 45.99 mpg (US)

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Quote:
Originally Posted by macchesney View Post
Hi,

I just came across this post whilst searching the internet, and its great that there's recent interest in this as I'm working on one right now as part of a university project.

You input mass of car & frontal area and find a flat stretch of road, accelerate to any speed (100 km/h is fine), begin to coast, press 'start' on the app. Coast down for a while then press 'stop'. The app uses the GPS to log your distance vs time curve, and interprets this to calculate the drag coefficient Cd and rolling resistance Rd.

I'm mostly done programming but now need to validate/test!

Do you think there would be interest in this app? how much do you think is a fair price for such an app?
Sounds good, I think there would be interest but as for a fair price I think you'd want to make money selling ad space. I'm pretty used to getting free apps that do most things and putting up with the ad's. I may pay 99 cents for it if it got good feedback from others.
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