4sken
100 mW
The official Do-All ebike calculator!
What's it for?
Here's some of its features:
Calculate watts needed to reach a speed,
Calculate watts needed to reach a speed up a grade,
Calculate the torque and acceleration of your ebike,
Calculate the waste heat your motor will generate at loads,
Calculate your acceleration with different ratios
There's a thousand and one uses for it, but it's most useful for spec'ing out parts for a future build; just plug in the speeds you want to reach and it can help you find the volts and amps you need to give your motor. It can also be used to calculate how many amps an existing bike needs to climb a hill at a set speed, calculate the maximum speed you can reach with the gear ratio and volts that you have, give you an idea of how your speed and acceleration change with different ratios and much more. It's compatible with all wheel sizes, all geared hub motor ratios (and chain drive ratios) and all vehicle weights (It could even be used for electric cars)
Want to upgrade the performance of your bike? This calculator can tell you whether you'd be better off losing some weight or adding some amps, or telling you whether you should increase your volts or decrease your frontal area to increase speed. It can help you find out how best to increase your acceleration and tell you if your motor will be generating excessive amounts of heat when climbing hills (Use an efficiency chart)
Let me know what you guys think; I made this program so it's easy for me to add or change features.
You'll need java to run this program, but... who doesn't have java :?
Google Drive: https://drive.google.com/open?id=0B4QUnp5dyMUMRGNJMndZQzloYk0
If G-drive won't work: download: http://www.filehosting.org/file/details/536240/MBCalc2.jar
Simply open the jar file as an executable (Like you would minecraft)
If you don't have java, here's a quick link:
https://www.java.com/en/download/
Good luck :wink:
