Sensorless at standstill, development updates and status

Electric Motors and Controllers
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fechter   100 GW

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Re: Sensorless at standstill, development updates and status

Post by fechter » Jul 05 2018 12:40pm

In most cases it should only need to work long enough to get the motor spinning where the BMEF can take over.
"One test is worth a thousand opinions"

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zro-1   1 kW

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Re: Sensorless at standstill, development updates and status

Post by zro-1 » Jul 08 2018 2:43pm

This is really really cool. Its pretty awesome when you realize that for as long as this technology has been around people are still inventing new ways to work with it.
~01~

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Arlo1   100 GW

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Re: Sensorless at standstill, development updates and status

Post by Arlo1 » Jul 10 2018 2:07am

Great work lebowski.
My Leaf motor controller build. viewtopic.php?f=30&t=63982&p=963227#p963227
My YSR build http://www.youtube.com/watch?v=BRo8r5g4NBg
RC and most types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
HI power controller design. Game Changer
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larsb   10 kW

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Re: Sensorless at standstill, development updates and status

Post by larsb » Aug 13 2018 11:08am

I really hope this is possible to realise in high power, then i'll have to learn how to build m'self one of the lebowski controllers :D

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Lebowski   1 GW

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Re: Sensorless at standstill, development updates and status

Post by Lebowski » Aug 15 2018 1:44am

I am up to my ears in this stuff now... it seems to work pretty good so far :D

The amount of calculations though is very large, plus they are all long difficult ones in Octave (the tool I use for simulations), let alone in the assembly that I code in...

bearing   10 kW

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Re: Sensorless at standstill, development updates and status

Post by bearing » Aug 28 2018 4:14am

Amazing work!

So how does it work with power? Does it take a "break" from driving the motor now and then to run the algorithm, or does it work continuously while powering the motor? (Not that I think it matters much for the user. I am mostly just curious and amazed!)

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zro-1   1 kW

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Re: Sensorless at standstill, development updates and status

Post by zro-1 » Aug 28 2018 9:09pm

Lebowski wrote:
Aug 15 2018 1:44am
...let alone in the assembly that I code in...
Wait. You code directly in assembly? (insert bowing emoji here) That's pretty amazing.
~01~

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Lebowski   1 GW

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Re: Sensorless at standstill, development updates and status

Post by Lebowski » Aug 29 2018 8:04am

bearing wrote:
Aug 28 2018 4:14am
Amazing work!

So how does it work with power? Does it take a "break" from driving the motor now and then to run the algorithm, or does it work continuously while powering the motor? (Not that I think it matters much for the user. I am mostly just curious and amazed!)
For now my lips are sealed... am thinking how to turn this idea into cash... considering several options...

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Lebowski   1 GW

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Re: Sensorless at standstill, development updates and status

Post by Lebowski » Aug 29 2018 8:05am

zro-1 wrote:
Aug 28 2018 9:09pm
Lebowski wrote:
Aug 15 2018 1:44am
...let alone in the assembly that I code in...
Wait. You code directly in assembly? (insert bowing emoji here) That's pretty amazing.
I find assembly simpler than C as there are a lot less instructions to learn...

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