This is still work in progress, but the objective here is to able to get some consistent data out of a esk8 setup without any terrain influence.
currently i’m running in to a few challenges:
1- my flywheel is not big enough to consistently measure the torque of a system, currently a system is able to hit max speed within 100ms. My data acquisition is at a 20ms rate. I will be adding a bigger steel fly wheel machined out of steel
2- I’m not able to load up my system enough to get a max current output of a motor. I will be adding 2 36T pulley on each side of the drum to put 2 6374 slave motors with a pair of vesc to control the slave current ressistance
3- Get a better material to adhere to the drum, the current one got folded by the R2 ghost hubs
image R2 G hubz
I am using a few methods for data acquisition.
on the input of the dyno I have a EloggerV4 from eagle tree, this module is used to measure the input voltage, output current and RPM of the drum
I am also using @Ackmaniac APP for data acquisition for redundancy.
The drum is a 62mm diameter 13" long aluminium cylinder.
initial result with the R2 ghost 90mm hubz, I shorted one of the hubz as a slave and used only one driving hub… but I need a bigger load, still has plenty of power to go by