Hi!
Very nice forum, im very happy to find people with the same interests as me...
I'm planning to convert a push go ped inta an electrical one, it 'll be my first EV so i could use some advice...
I bought a 'Town7' go-ped in decathlon (a big sports-shop in europe) with 200mm wheels and suspension (see picture)
It weighs 5,6kg and I hope to keep the weight with batteries under 10kg...
The rear fork of the go-ped is detachable so i was planning to make a whole new one with space and holes on it for my brushless dc motor...
(alltough I'm not yet sure where I am going to mount the motor (at the rear end of the wheel or on top of it...)
I plan on using a turnigy TR 80-85 or a HXT 63-74 200kv Brushless Outrunner and a car ESC to be able to brake on the motor.
I also plan to add hall sensors at the outside of the motor, I'll be 3d printing a bracket to mount these on the motor.
It is correct that the current draw of the motor will decreas so I'll have a bigger radius right?
So here my questions:
Should i use a chain or a belt? and what are the significant differences? I was thinking to use a belt because i think it will be less noisy...
How good can you brake with a brushless dc motor? (for the moment i wasn't planning to add any extra brakes, the go-ped has allready a 'push-brake' on the rear wheel...)
Do i have to shield the brushless outrunner for rain or not?
How can I correctly calculate rpm's to calculate a gear ratio? I understand the unit Kv but i can believe the motor slows down when it has to push a go ped with a 70kg person on it...
What type of batteries should i choose? I was planning to use lifepo because i read they are safer and last longer...
Will a discharge rate of 30C be enough for my application?
Thanks in advance for the advice!
Greets, Tuur (from Belgium)
Very nice forum, im very happy to find people with the same interests as me...
I'm planning to convert a push go ped inta an electrical one, it 'll be my first EV so i could use some advice...
I bought a 'Town7' go-ped in decathlon (a big sports-shop in europe) with 200mm wheels and suspension (see picture)
It weighs 5,6kg and I hope to keep the weight with batteries under 10kg...
The rear fork of the go-ped is detachable so i was planning to make a whole new one with space and holes on it for my brushless dc motor...
(alltough I'm not yet sure where I am going to mount the motor (at the rear end of the wheel or on top of it...)
I plan on using a turnigy TR 80-85 or a HXT 63-74 200kv Brushless Outrunner and a car ESC to be able to brake on the motor.
I also plan to add hall sensors at the outside of the motor, I'll be 3d printing a bracket to mount these on the motor.
It is correct that the current draw of the motor will decreas so I'll have a bigger radius right?
So here my questions:
Should i use a chain or a belt? and what are the significant differences? I was thinking to use a belt because i think it will be less noisy...
How good can you brake with a brushless dc motor? (for the moment i wasn't planning to add any extra brakes, the go-ped has allready a 'push-brake' on the rear wheel...)
Do i have to shield the brushless outrunner for rain or not?
How can I correctly calculate rpm's to calculate a gear ratio? I understand the unit Kv but i can believe the motor slows down when it has to push a go ped with a 70kg person on it...
What type of batteries should i choose? I was planning to use lifepo because i read they are safer and last longer...
Will a discharge rate of 30C be enough for my application?
Thanks in advance for the advice!
Greets, Tuur (from Belgium)