Use Cycle Analyst as crank rpm meter / Voir pedal vitesse avec le Cycle Analyst

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Use Cycle Analyst as crank rpm meter / Voir pedal vitesse avec le Cycle Analyst

Message par DanielJ le 2018-03-13, 21:08

Since the tecnial rule on the speed limit for mid drive motors seems to be set at 100rpm crank speed i was thinking to find a simple way to measure the crank rpm....

And the speedometer on the CA does nothing else than counting rpms x wheel circumfence and spitting it out in km/h.

So i started calculating how much you need to set the wheelcircumfence that you get out 1/min in the speed windows.

V (km/h)= 1/s * U * 3.6

1/s=km/h / 3.6*x

x= 1/3.6 =0.277m/s

m/s in m/min= 0.227*60=16.66667m/min

Since the CA does take only 4digit wheelcircumfence you just can set 1667mm that means that on the display it will show 4.25 km/h what means 42.5 tr/min, Do not forget to set the right numer of Magnets if your crank has an integreated sensor....

So you know after the suntrip how many pedalstrokes you did all the way to China.....

I think this makes only sence if you dont have a V3 CA... because there the pas sensor is integreated...
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DanielJ

Messages : 7
Date d'inscription : 09/10/2017
Age : 30
Localisation : Emmental-Suisse

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