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Motor RPM not stable FW 5.03

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TZTZ
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Joined: 2020-03-12 20:13
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Motor RPM not stable FW 5.03

Hey,

I am having the same issue as in this post: https://vesc-project.com/node/2647 But when i try to do BLDC detection it keep saying that it fails and that i need to change parameters, i have tried every possible argument within 5A range and the allowed range(without getting invalid arguments)
I am using a micromotor cm62 http://www.micromotor-bg.com/Products/Product/40 with only ~100g inrunner which should run between 7000 and 40000 RPM 2 poles
These are my values:


It runs fine within the openloop time 5 seconds(but in the FOC detection the motor does sound better compared to the openloop), but when it gets out of it the motor kind of restarts.
I get that my resistance is high but it changes by a lot with usage/heat when it is colder it is below 1000 and now it is shower temperature and it is the screenshot.

Best Regards,

Piet

TZTZ
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Last seen: 2 months 4 weeks ago
VESC Free
Joined: 2020-03-12 20:13
Posts: 9

Hey, doing the same thing but then using the new beta firmware 5.03 it does work fine! only my rpm aint stable/duty cycle.
I am driving it with duty cycle but when it goes above 10000 RPM you can clearly see the spikes in the RPM plot