Design calculations for my hybrid e-cycle

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SUMMARY

The discussion focuses on the design calculations for a hybrid e-cycle, specifically addressing the motor and battery power requirements. Key specifications include a maximum speed of at least 40 km/h, a gross weight of 120 kg, and a minimum range of 30 km. Participants emphasize the need for additional specifications such as gear ratios and gear diameters to accurately estimate power requirements.

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spsutar
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i'm in the conceptual design stage of my e-cycle.

my tech reqs :

1. it should have a max speed of atleast 40 kmph.

2. gross weight = 120 kg

3. min range 30 km.

Please help me with the following design question.

how to estimate the motor & battery power requirements ?
 
Last edited by a moderator:
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You need more specifications and assumptions. I'm not the best with cars so I can't point you to additional parameters with confidence.
 
How many gears? What are the gear ratios and gear diameters?
 

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