torque question

[(*steve*)]

Yep. That looks right. Obviously it's a different motor for 12 and 24 volts.

 

[donkey]

http://www.ebay.com/itm/EZGO-36-Vol...eak-HP-High-Speed-Admiral-Motor-/251461839915
so this motor is about right???

 

[duke37]

The power required will depend on the terrain. Scooters will need to climb quite a slope for a short distance.100 or 200W may do on a good surface.

1. 24V is better than 12V because the current is half so there are fewer resistance losses. Trams use about 700V, now that is a thing to aim for.

2. Ah is the battery capacity so a 20Ah battery can give 1A for 20 hours or 2A for 10 hours. It is amps * hours NOT amps/hour.

The motor shown does appear to have no rear bearing and will need a matching gearbox to work.

 

[donkey]

so a 200watt motor by 2 for each rear wheel should do and average backyard?

I got a 150ah battery... not saying where from..... anyway going to use that so 12volt at leats say 40amps (allows for losses and 2 * 12volt *40amps is 480watts as opposed to 400 for the 2 motors) gives me about 4 hours runtime.... now to find a way to charge those suckers quickly too

 

[Ratch]

hey guys and girls, just a quick question about torque.
lets say I have a motorised device that total weight is 180KG(please use metric) if it was a 4wheeled device with top speed of about 5km and rear wheeled driven how much torque would I need to push the dang thing on a 45degree incline?
need info for a project not for homework (still haven't tried to get a qualification yet lol)

What speed is 5 km? That is a distance.

Assuming no friction except for gripping, one can coast without using any power on a level surface. Calculate the power needed to climb the incline and solve for the torque.



Can you take it from there?

Half the torque needed if you have two wheels.

Ratch