Body
Warren, You could also drive it like a magneto with some points and a
condenser/s make a powerful neg nrg genhead
On 11/14/2018 4:01 AM, Warren Keillor [email protected]
[EVGRAY] wrote:
>
> It seems that we are entering the realm of electric car motors, that
> try to optimize every part of the rotation. Has anybody been visiting
> some of the electric hot rodder's forums?
>
> My friend Mike, who is putting a Nissan Leaf drive train in his 1.5
> ton Volkswagon truck is heavy into this type of motor conversation.
> Cheers Warren
>
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>
> On Wed, 14 Nov 2018 at 12:01 AM, Mick [email protected] [EVGRAY]
> <[email protected]> wrote:
>
> Kone,
>
> Its a BLDC motor. The outside is the rotor like a hub motor so
> the centrifugal force holds them in place along with his super
> magnet glue, rotates the magnets not a shield. There are two main
> types of pulse systems for BLDC I forget the names but has to do
> with waveshape. Easy to see which his is by the scope brainfade
> on the name right now.
>
> He has no heat problems as the reverse windings suck it off on the
> flyback pulse during rest cycle of the pulsetrain.
>
> He is using both back EMF and the flyback pulse in different
> modalities. Steering diodes to collect Lenz back emf and reverse
> windings every other slot per phase: Phase one forward wound, skip
> two reverse wound skip two forward wound, same for each phase.
> 33035 and 33039 chips run it
>
> On 11/13/2018 8:22 PM, [email protected] <mailto:[email protected]>
> [EVGRAY] wrote:
>>
>> Hi Jakob and Mick and all
>> Very good video of Ron Brandt.
>> I learned alot; he uses hall effects and transistors to pulse.
>> Very strong neodymium magnets 100lb pull,
>> Iron core material, no brushes so windings stationary while
>> magnets rotate but is possible magnets also stationary with some
>> sort of magnetic interruptor/sheild rotates between magnets and
>> coils similar to Eklin which he mentions he built some of.
>> Studyng that cross section drawing more will tell what it is that
>> rotates ...i would imagine heat problems and much drag to
>> rotation if he is rotating magnets of that strength past iron
>> cores especially if it gets to to high rpms above 3000...so maybe
>> it is a rotating interruptoe plate/ring of some kind working like
>> an Eklin machine.
>> It is 3ph and looks like DC from scope, showing just one of the
>> three phases. I don't think AC like rotovertor with run
>> cap/rotary transformer phase
>> but could be...has backemf/recoil flyback recovery (Sorry Norm he
>> calls it back emf) and interesting it goes 1000rpm faster with it
>> disconnected so sounds like he has not got that quite right yet
>> however he says he does save it into caps and uses it onr next
>> pulse ...his draw of 2100 watts pretty heavy maybe this is while
>> loaded on dynometr which isn't too bad.
>> Kone
>>
>