I am working on a 500 kg roller, which I want to pull using electric motor. I am considering hub motor, since it is easier to frame a basic ev with it. Now I need to know the capacity of the hub motor, I need to choose.
Roller weight = 500 kg Frame weight + driver weight = 150 kg speed required = 10 km/hr Surface on which the roller is to run is predominantly flat.
Things I need to know, 1. Torque requirement for my problem. 2. motor wattage 3. battery requirement, to run for 2 hours.
Being new to such design projects, I may have missed details. Please ask me for them. Help me with the calculation.