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Old 11-07-2015, 11:04 AM   #2304 (permalink)
MPaulHolmes
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Location: Maricopa, AZ (sort of. Actually outside of town)
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Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
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Finding the magnitude of <Vd,Vq> was ALMOST identical to finding the electrical RPM, so today if I have enough time I'm going to try to make a correction array, so that it will fit exactly. Then, I'm going to gradually decrease the encoder counts that I pay attention to until it is down to maybe 1 tick per revolution that is used for computing the sensored RPM, and see if this new way of doing sensorless can effectively fill the gaps.

The proper thing would be to go back to all that crap I was doing for sensorless and do a similar reduction in encoder ticks to see if that could fill the gaps effectively. I bet it could, but this new approach is so spectactularly simple that I want to try it first. You don't need to know anything about rotor inductance, stator inductance, stator resistance, etc...
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