Advice on my first build: DD rear hub 48V 1000W

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nezhac
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by nezhac » Dec 22, 2017 3:35 am

Chalo wrote:
Dec 21, 2017 10:45 am
It's easier if you just get a kit that does what you want. The Cycle Analyst is a fantastic tool and enhancement to almost any e-bike, but just setting it up amounts to learning a new set of skills.

If you can install Debian Linux, or root your phone without somebody talking you through it, you'll probably enjoy setting up the Cycle Analyst. If that sounds painful to you, maybe find a kit that doesn't require setup on the programming side.
Alright! Thanks for the comparison. Arch linux user and Android rooter here, I'm fine with doing tech stuff as long as I know that in the end it's possible and I'm not setting out on a fool's errand.

If it's possible to add the Cycle Analyst to almost any e-bike and therefore do a PAS conversion I'm in. What about the integrated controller that is in LunaCycle's smart pie? Could this pose a problem to getting access to the controller for installing the CAV3?

tomjasz
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by tomjasz » Dec 24, 2017 3:54 am

Mac from em3ev, the leaf, or lunatics hav3 @ geared motor that is reliable. Dogman knows th3 gear drive well.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

Tats
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by Tats » Dec 27, 2017 6:21 pm

+1 Mac kit with battery from EM3ev. Installed a kit on my mates bike, it's light, very efficient, torquey and on the 50.4v battery goes great.

Easy install and great vendor support/upgrades later if required - maybe cheaper to get some stuff elsewhere, but in the long run reliability and battery life will more than make up for it imo.

nezhac
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by nezhac » Feb 23, 2018 3:02 am

So after a long delay of trying to get PayPal to work with leaf bike, and double checking via e-mail they have told me that for their 500W hub motor "This motor is brushless with gears inside". Their web page says "direct drive Brushless Geared", somewhat contradicting itself:
http://leafbike.com/products/diy-bike-c ... -1047.html

Anyone have some feedback on this? Are they really geared motors? I'm thinking of just pulling the trigger on the 1000W instead, which is gearless (or seems to be on their web page)

Thanks!

UPDATE: after a rapid e-mail conversation with Peter Chou from Leaf-bike apparently the 2S - 26 inch 48V 500W rear hub motor is in fact direct drive. But from what I understood, it differs from the bigger 1000W model in that it has a freewheel, although regen breaking can apparently still be used. So I've gone ahead and ordered it, will post here as the story goes on.

tomjasz
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by tomjasz » Feb 24, 2018 2:12 am

nezhac wrote:
Feb 23, 2018 3:02 am
So after a long delay of trying to get PayPal to work with leaf bike

UPDATE: after a rapid e-mail conversation with Peter Chou from Leaf-bike apparently the 2S - 26 inch 48V 500W rear hub motor is in fact direct drive. But from what I understood, it differs from the bigger 1000W model in that it has a freewheel, although regen breaking can apparently still be used. So I've gone ahead and ordered it, will post here as the story goes on.
EM3ev and MAC! Will do grades to 4%.
Attachments
Screen Shot 2018-02-24 at 1.10.17 AM.png
Screen Shot 2018-02-24 at 1.10.17 AM.png (170.96 KiB) Viewed 286 times
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

S3b4
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by S3b4 » Feb 24, 2018 4:01 pm

tomjasz wrote:
Feb 24, 2018 2:12 am
nezhac wrote:
Feb 23, 2018 3:02 am
So after a long delay of trying to get PayPal to work with leaf bike

UPDATE: after a rapid e-mail conversation with Peter Chou from Leaf-bike apparently the 2S - 26 inch 48V 500W rear hub motor is in fact direct drive. But from what I understood, it differs from the bigger 1000W model in that it has a freewheel, although regen breaking can apparently still be used. So I've gone ahead and ordered it, will post here as the story goes on.
EM3ev and MAC! Will do grades to 4%.

So anything more step than 4% and is the MAC going to fry or what can possibly go wrong?

Cuz I am into similar setup:
MAC + 66.6V LiPo - top 30mph is enough for me.

I will be doing quite a lot of city hills and tought this will go better than large DD.

Your opinions?

LewTwo
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by LewTwo » Feb 25, 2018 11:20 am

"... direct drive Brushless Geared ..." Chinglish
The more I learn the more obvious the immensity of my ignorance becomes.
Weight Wennie E-Bike https://endless-sphere.com/forums/viewt ... 3#p1173723
Shaft Drive Grocery Getter https://endless-sphere.com/forums/viewt ... =6&t=90718
...and thanks to Justin!

tomjasz
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by tomjasz » Feb 25, 2018 5:12 pm

S3b4 wrote:
Feb 24, 2018 4:01 pm


So anything more step than 4% and is the MAC going to fry or what can possibly go wrong?

Cuz I am into similar setup:
MAC + 66.6V LiPo - top 30mph is enough for me.

I will be doing quite a lot of city hills and tought this will go better than large DD.

Your opinions?
See for yourself, an accurate calculator. http://www.ebikes.ca/tools/simulator.html
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

S3b4
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by S3b4 » Feb 27, 2018 9:02 am

tomjasz wrote:
Feb 25, 2018 5:12 pm
S3b4 wrote:
Feb 24, 2018 4:01 pm


So anything more step than 4% and is the MAC going to fry or what can possibly go wrong?

Cuz I am into similar setup:
MAC + 66.6V LiPo - top 30mph is enough for me.

I will be doing quite a lot of city hills and tought this will go better than large DD.

Your opinions?
See for yourself, an accurate calculator. http://www.ebikes.ca/tools/simulator.html
Sorry I am not sure how to read the results?
Can you help me with that please?
Thanks!

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pwd
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by pwd » Feb 27, 2018 9:29 am

S3b4 wrote:
Feb 27, 2018 9:02 am
Sorry I am not sure how to read the results?
Can you help me with that please?
Thanks!
Here is the same config as posted above.

http://www.ebikes.ca/tools/simulator.ht ... =1&grade=4

The "grade" slider on the left is set to 4%. If you increase that and click the calculate button you will see it will overheat. Have a look at the performance table in the lower right.
Current Build:
Rocky Mountain Element
Magic Pie 4 front + Magic Pie rear w/ Infineon 12fet (Leafmotor 1500W coming soon...)
14S5P em3ev 30Q pack

Old Build:
GIANT ATX 980 w/ Cycle Analyst v2.25
Golden Motor Magic Pie (internal controller) X2
14S3P 15aH: 6X 6S 5000mAh + 3X 2S 5000mAh LiPo packs
My thread: viewtopic.php?f=2&t=47295&p=693208

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wturber
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Re: Advice on my first build: DD rear hub 48V 1000W

Post by wturber » Feb 27, 2018 2:34 pm

And be sure to also adjust throttle and human power inputs to see the estimated time when it will eventually overheat.
"Commuter - DC Booster"
Iron Horse 3.0 hardtail - 48V / 1000W / 470rpm generic Chinese DD Hub motor (ebay)
7 x 36v 4.3ah 10s 2P battery packs - Wangdd22 1500W 30A DC Boost Converter delivers 54v and about 1175 watts peak
53T/42T Sakae Road cranks - 30mph+ on flats
https://endless-sphere.com/forums/viewt ... =2&t=90369

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