The Idea
The idea came from this YouTube video. As good as I believe German engineering to be, I really don't want to pay 40k for a bicycle/motorcycle. I've wanted to make my own E-Bike but the batteries take forever to charge and making a weed eater motor cycle is out of the question
The visual:
Gear Box
Gears A1, B1, C1 & D1 are all 7"
Gears A2, B2, C2, D2 & D3 are all 3"
A1 is the bike peddle and crank
D2 & D3 are alternators or converted electric generators
A1 and A2 are connected by chain
A2 and B1 are attached directly
B1 and B2 are connected by chain
B2 and C1 are attached directly
C1 and C2 are connected by chain
C2 and D1 are attached directly
D1 and D2 are connected by chain
D1 and D3 are connected by chain
Info:
Two D1's exist so D2 and D3 can be rotated at the same RPMs
Due to the gear ratios the ending calculation would be A1 to D2 & D3 would be 1:~150. One turn of A1 would be about 150 turns of D2 and D3 which means 2000 RPMs would be very easy to achieve for one alternator so using two alternators just add more voltage.
Question 1:
If D2 & D3 take a certain amount of energy to be turn how would you calculate how much energy I would need to push on the cranks to move it.
Question 2:
What type of alternator to tire hub connection would be possible? As is (using a converter for the electricity) would I be able to make the hub spin faster due to the amount of more energy is created thus meaning, the more I peddle the faster I go. So in a sense peddle assisted e-bike hub. OR, would I have to charge the batteries as I peddle and use a throttle.
Question 3:
How do you pick out a alternator that will do the job a need to have done?
PS: Check the Image for a better idea of the gear box