RWP
1 kW
I think you were looking at the 5" Transmag motor, and perhaps decided it was not what you are looking for.neptronix said:
What motors are you suggesting?
Custom frame for HUB MIDDRIVE_ fully
- Thread starter jackjetful
- Start date
What motors are you suggesting?
jackjetful
100 W
- Joined
- Feb 15, 2013
- Messages
- 158
I built the frame for hub motors as mid drive.
I run the bike with a 2-stage reduction. So i thought of using a smaller motor with higher rpm; like this one: http://e-bike-diffusion.com/index.php?module=produit&prd_id=501&url_retour=http%253A%252F%252Fe-bike-diffusion.com%253A80%252Findex.php%253Fmodule%253Dcategorie%2526code_cat%253D24%2526page_start_num%253D1
@ crossbreak:
At the Kelly- page is written: • Configurable battery voltage range, B+. Max operating range: 18V to 60V.
http://kellycontroller.com/kbs48101l35a24-48v-mini-brushless-dc-controller-p-1171.html
So at 35A ~2000W seem to be correct.
Why would you advise me to go up to 72V ... I think 60V with little bit more amps will fit for my setup.
appart from that, i'm not going for maximum speed; I just want more tourque!
... Jakob
I run the bike with a 2-stage reduction. So i thought of using a smaller motor with higher rpm; like this one: http://e-bike-diffusion.com/index.php?module=produit&prd_id=501&url_retour=http%253A%252F%252Fe-bike-diffusion.com%253A80%252Findex.php%253Fmodule%253Dcategorie%2526code_cat%253D24%2526page_start_num%253D1
@ crossbreak:
At the Kelly- page is written: • Configurable battery voltage range, B+. Max operating range: 18V to 60V.
http://kellycontroller.com/kbs48101l35a24-48v-mini-brushless-dc-controller-p-1171.html
So at 35A ~2000W seem to be correct.
Why would you advise me to go up to 72V ... I think 60V with little bit more amps will fit for my setup.
appart from that, i'm not going for maximum speed; I just want more tourque!
... Jakob
crossbreak
1 MW
if you have a faster spinning motor, you can increase reduction, this leads to more torque. more important, the usable torque band grows, so you need less gear spread to go up the same hill or can go up a steeper hill with the same old spread.
these words are only true if you stay below the rpm were excessive parasitic loss start. for the 12pole big block alternative below 2000rpm ( you wont reach that even with 72V). or 460rpm for the motor you use now (guess it has 52poles). This is just a rule of thumb and depends on most common 0.5mm lams,
This motor already has it's own thread, feel free to join our discussion. IMO this motor is not suited for your drive.
http://endless-sphere.com/forums/viewtopic.php?f=28&t=57483
The one you use is just fine. Just increase amps, voltage and tune your reduction. your drive has more potential than you might think
these words are only true if you stay below the rpm were excessive parasitic loss start. for the 12pole big block alternative below 2000rpm ( you wont reach that even with 72V). or 460rpm for the motor you use now (guess it has 52poles). This is just a rule of thumb and depends on most common 0.5mm lams,
This motor already has it's own thread, feel free to join our discussion. IMO this motor is not suited for your drive.
http://endless-sphere.com/forums/viewtopic.php?f=28&t=57483
The one you use is just fine. Just increase amps, voltage and tune your reduction. your drive has more potential than you might think
jackjetful
100 W
- Joined
- Feb 15, 2013
- Messages
- 158
Totally bend my chainwheel after last weekends ride.
Was suprised how much tourque could be produced with this motor.
Set the Kelly up to max power @48V. I switched to Headway cells, so power according to my CA is around 2kW.
here's a ahort video:
[youtube]9nxg4TUhBmM[/youtube]
Was suprised how much tourque could be produced with this motor.
Set the Kelly up to max power @48V. I switched to Headway cells, so power according to my CA is around 2kW.
here's a ahort video:
[youtube]9nxg4TUhBmM[/youtube]
jackjetful
100 W
- Joined
- Feb 15, 2013
- Messages
- 158
Thanks,
Setting this bike up as it is now was very difficult. I alrerady rewound a 9c Hub to push more amps through. the "small" one I use now gets pretty hot right now.
But temperatur stays below 100°C.
Building your own bike from scratch and set it up right will give you some expirience and also ideas for improvement. I already developed a new frame which will be suitable for the BHT motor.
Setting this bike up as it is now was very difficult. I alrerady rewound a 9c Hub to push more amps through. the "small" one I use now gets pretty hot right now.
But temperatur stays below 100°C.
Building your own bike from scratch and set it up right will give you some expirience and also ideas for improvement. I already developed a new frame which will be suitable for the BHT motor.
