Hello,
We are designing a solar car and we are trying to figure out very roughly what is the minimum suitable battery pack to run our vehicle. What we have is:
- 250kg total mass with passenger (excluding batteries).
- BLDC hub motor (specs attached)
- Motor controller (specs attached)
- 12V 40Ah for 20 hr deep cycle gel batteries (12kg)
- 4 solar panels 18V 170W
Our requirements:
- v=8.4 m/s
- a=1.2 m/s^2
- Car runs for 30-60 mins
I did some very rough calculation:
F=ma=400*1.2=480N
P=F*v=480*8.4=4032W
T=F*r=480*0.1778=85.344N.m
How many batteries of the specified specs do we need to run our vehicle for 30-60 mins? I would appreciate if you included the formulas used.
Thank you,
Karam Robeil
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