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Dual Vesc with Mid Drive and Hub Motor on the same wheel.

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NijiflianBustock
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Dual Vesc with Mid Drive and Hub Motor on the same wheel.

I'm using two vesc (connected via can bus) to power an ebike with a mid drive motor and a rear hub motor (direct drive). Currently the set up is working mostly as expected but the full potential of the system is still being left on the table.

The problem I have though is the hub motor can be spun faster by the Mid drive than by itself. Overspinning the motor generates a higher voltage than the system runs at (58.8 full charge) and it's throwing an overvolt error. Is there a way to limit the Mid drive rpm only when the hub motor is near it's own maximum rpm? I thought traction controll would be the way to go but it would yield the same results as limiting the Mid drive rpm which I would rather avoid if possible. Field weakening seems to help with this problem but if the vesc fails at speed it may also damage the battery due to excess voltage

NijiflianBustock
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Last seen: 1 month 4 days ago
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I can provide further insight to the setup if needed.

Windfire
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Last seen: 5 months 2 days ago
Joined: 2023-10-13 09:12
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Do you send me a setup tu run mid drive motor? I have a impulse 2.0