Weak hub motor at start up

Lightweight / Folding / Portable EVs - seats optional
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GodsWarrior   10 mW

10 mW
Posts: 32
Joined: Jul 10 2020 1:27am

Weak hub motor at start up

Post by GodsWarrior » Jul 31 2020 10:49pm

If my hub motor gets really hot but doesnt smoke...does it become weak at start up???

GodsWarrior   10 mW

10 mW
Posts: 32
Joined: Jul 10 2020 1:27am

Re: Weak hub motor at start up

Post by GodsWarrior » Jul 31 2020 11:08pm

I have dual 10" 1000w hub motors running on 52v 28ah battery with dual 1000w controllers, basic componants ,nothing to fancy but they get me around ...so one day i was at full throttle going down the street and when i got home i noticed a weird noise...and lose of power..at first i thought the controllers but then swapped them out for the previous one i had (1000w controller) and still the same problem...battery and BMS are fine , wich brings me to the title of this forum....if my motors got Hot to the point of almost burning out BUT did not, do they become weak and make wierd noises ???they struggqle at start up , but if im easy at start up to build up speed ,then once moving its not to bad not as fast as before but moves along...its more like lose of power ( bottom end) top end is not as bad.,.. let me know your thoughts guys...thanks in advance...🙂

kdog   10 kW

10 kW
Posts: 650
Joined: Feb 02 2014 9:22pm
Location: hobart, tasmania

Re: Weak hub motor at start up

Post by kdog » Aug 02 2020 7:10am

Three things immediately spring to mind.
1, fried your halls
2, demagnetised your magnets
3, you have a short somewhere

Or any combo of above.

GodsWarrior   10 mW

10 mW
Posts: 32
Joined: Jul 10 2020 1:27am

Re: Weak hub motor at start up

Post by GodsWarrior » Aug 03 2020 1:54am

Halls are good i tested them...
I looked around for shorts dont seem to find any ....
---how do magnets get demagnatized??? I keep leaning to my windings on the verge of smoking....even though i used a tester to test hall sensors ,phase wires etc...

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