2000w rated hub motor

General Discussion about electric bicycles.
PeeHell   100 W

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Re: 2000w rated hub motor

Post by PeeHell » Jun 17 2014 9:30pm

Pretty good actually. It has roughly the same torque as the magic pie even though it's a faster wind (7.3kv versus 9.3kv). This is probably due to the stator width (24mm vs 18mm on the magic pie).

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Samd   1.21 GW

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Re: 2000w rated hub motor

Post by Samd » Jun 18 2014 12:02am

From memory , if everything else is unchanged, torque is 1:1 to stator width, but compared to the diameter it's a squared relationship. *I think*.
http://ballaratebikes.com/

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"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

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MadRhino   100 GW

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Re: 2000w rated hub motor

Post by MadRhino » Jun 18 2014 8:21am

Glad to know your bike is riding. I hope to see it soon.
Have you fitted the low resistance mosfets in your controller yet ?
Make it fool-proof, and I will make a better fool.
Current bikes
Street:
Trek Session 10 mod. Variable geometry. 70mph
Dirt:
Santa Cruz V10. 50mph

PeeHell   100 W

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Re: 2000w rated hub motor

Post by PeeHell » Jun 18 2014 10:39am

Since I've received my new 18 fet sine wave controller today, I'll study it before installing the mosfets. I have irlb4030 in stock so I will install them in the controller. The low rdson that I'll use (CSD19536KCS) will be in my next sine wave if I judge that the controller have enough potential to justify the 3x higher price tag of the mosfets.

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sigimem   100 W

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Re: 2000w rated hub motor

Post by sigimem » Jun 18 2014 12:32pm

Very nice. what top speed are ypu getting?

Can you tell more about the controller?

PeeHell   100 W

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Re: 2000w rated hub motor

Post by PeeHell » Jun 18 2014 1:46pm

I currently test the 18 mosfets controller. I will order the 12 mosfets controller too. I'll create a post for the controller after I inspected it.
So far I've been up to 82 km/h on the 100% settings and the standard "square" wave controller.

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sigimem   100 W

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Re: 2000w rated hub motor

Post by sigimem » Jun 18 2014 4:49pm

I am looking forward to a controller test. Wow 83 km/h is very impressive how does the bike handle at these speeds? Still stable?
Wich tyres do you use?

PeeHell   100 W

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Re: 2000w rated hub motor

Post by PeeHell » Jun 18 2014 7:07pm

I use a specialized nimbus flat jacket in the front and a schwalbe big apple in the rear (thanks to MadRhino). The bike is surprinsingly stable at this speed. The Tidalforce S-750 frame seems to be very robust and the central post mounted batteries (24 x 4s hardcase) give a good balance. Looking forward to feed this motor with the 18 mosfet sine wave...

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madin88   1 GW

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Re: 2000w rated hub motor

Post by madin88 » Jun 18 2014 11:49pm

do you have a link to the sinewave controller?
- 10kW belt drive with Neumotor 8057: [url]viewtopic.php?
- KTM Hardtail Pedelec / eZee V2 6T / 27,5" / Kelly KBSX @ 1,5kW / Torque PAS / CA-V3 / 13s4p Sanyo GA in Shark case

PeeHell   100 W

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Re: 2000w rated hub motor

Post by PeeHell » Jun 19 2014 1:44am

It has been months since I ordered it so I only remember the name was starting by suzhou. I think it's from that store :
http://www.aliexpress.com/store/group/E ... 89204.html

I have a few more coming my way so if any of you are interested I could possibly build them up and sell it to you guys.

cwah   10 GW

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Re: 2000w rated hub motor

Post by cwah » Jun 19 2014 6:20pm

DO NOT ORDER FROM THAT STORE

I ordered 2 * 72V50A sine wave controller from him. For both of his controller:
- I've never seen over 37A on my wattmeter
- Over 76V it does have a buzz which is REALLY ANNOYING. So completely remove the benefit of a sine wave controller
- IT DOES NOT HAVE REGEN

And both controllers have the same issue!!
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

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Samd   1.21 GW

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Re: 2000w rated hub motor

Post by Samd » Jun 19 2014 7:04pm

Might be an ok match to a cheaper greentime 4kW controller?

Ron, that old image is hilarious. Back to the future.
http://ballaratebikes.com/

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"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

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