Sizing drivers appropriately for big wheelchair motors?

Help & Support Robot Parts
1

Hello,

We have two wheelchair motors in a platform that are rated with power inputs of 137 amps / 3291 watts / 24 volts at stall, and 71 amps / 1708 watts / 24 volts at peak power output.

At the moment, we are running these robotshop drivers (robotshop.com/en/cytron-30a … river.html) and burning them regularly as we exceed their output. They are rated for 24 volts / 30 amps output continuously, and 80 amps output momentarily.

How should we size our drivers to keep them matched to our motors? Would it be appropriate to find drivers that are rated right up to our motors stall parameters?

Thanks!

2

Does sizing our drivers for 80% of stall current, with breakers if they go over that, sound appropriate?

i.e. getting 110 amp drivers and breakers if they trip over that? Any suggestions on good 110 amp drivers?

3

I have the same problem. Burnt up sabertooth 25 amp and 32 amp and currently use the 60 amp dual motor driver in r/c mode. I find it still not enough. Have you found anything better?

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