DELTA-WYE Electric Bike 75V and 143km/h electric speed booster PART 1

This is a short demo of my first experiemnt about the different winding configuration possible on a brushelss hub motor for electric bike.

I used a nine contient brushless hub motor (the RH205 wich use 9 strands wire and 7 turn per pole)
The controller is a modified ecrazyman with 12x 4110 capable of up to 70A at 75V.

See also part two!

Soon.. test on the road !... and also using 100V on a 5305 !

Category:

Autos & Vehicles

Tags:

• Electric
• Bike
• Doctorbass
• ebike
• crystalyte
• DELTA
• WYE
• STAR
• brushless

[DionDifelice]

When you switch from star to delta, what is happening to the current and the voltage?

[Doctorbass]

In delta the current increase by around 80% but the voltage is the same ( battery voltage) ( in fact it drop just a bit ( less than 1 V at full load)

[Doctorbass]

Yes Luc.. I could also get that speed at 1 Volts and 200A if i would... but volt vs speed isn't as imoprtant as power vs speed!.. You know... Volt is only EMF.. .the less volt the more current for the same power!... so by using my 5305 with 100V it only draw 9A at 60km/h =) or would also draw 18A at 50V..etc

[danakulchyski]

if you just change your bike motor to delta..by unwinding the y configuration and turning into a delta configuration.will you loose hill climbing capability..

[VialensCalaelen]

WHAT IS THE REAL SPEED ON ROAD ?

[bdub232]

Like a turbo boost.

[MrJetjoe]

your drawing looks like a flux cap.

[zeroturn03]

and uh and uh

[bitsurfer0101]

Could you provide the schematic for the controller and contactor? I'm interested in making my own e-bike and wanted to compare notes on what you are doing with your bike. Good job in any case experimenting with Delta-Wye.

[chamag1996]

@Doctorbass Even if you do that, doesn't higher current mean higher torque? BTW, keep up the awesome work! (Greetings from Trois-Rivières!)

[xztnorte]

akçj

[neptronix]

vtec just kicked in, yo!

[leonelkk]

mas boludo no podes ser no?