How to calculate Torque for motor?

  • Thread starter Thread starter zaki4484
  • Start date Start date
  • Tags Tags
    Motor Torque
Click For Summary

Discussion Overview

The discussion revolves around calculating the torque required for motors in a self-balancing skateboard project. Participants explore the factors influencing torque, including weight, wheel size, and acceleration, without reaching a definitive conclusion on the exact torque values needed.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant seeks to determine the torque necessary for two 24v motors to move the wheels of a self-balancing skateboard, given specific weight and wheel size parameters.
  • Another participant suggests that torque requirements depend on the maximal imbalance encountered during operation and proposes an estimation method involving wheel radius, mass, and gravitational acceleration.
  • A further contribution outlines three reasons for needing torque: balancing quality, acceleration of the total weight, and mentions that angular acceleration may be negligible.
  • Participants discuss the need for a sketch or visual representation of the setup to better understand the torque requirements.

Areas of Agreement / Disagreement

Participants express varying views on the factors influencing torque requirements, indicating that multiple competing perspectives remain without a consensus on the exact calculations or methods to determine the necessary torque.

Contextual Notes

Participants have not provided specific assumptions or definitions regarding torque calculation methods, and there are unresolved mathematical steps in estimating the required torque.

zaki4484
Messages
2
Reaction score
0
Hi,
I am doing a self-balancing skateboard. It uses two 24v motor to move two wheels.
I need to know if my motor will be able to move the wheels.

Given that,
wheel of 5.66 inches.
The total weight of the skateboard = 13kg.
Assume human mass = 80kg.
Total weight with human mass = 93kg.

How to know the torque to move each wheel?

Thanks!
 
Engineering news on Phys.org
Can you provide a sketch of the setup? Something similar to a segway?
Where do you expect torque? If I understand your setup correctly, it depends on the maximal imbalance you get.

In any way, you can estimate the order of magnitude (but not a precise value) with (wheel radius)*(mass)*(gravitational acceleration).
 
Almost similar to segway only that this project uses hand controller.

I don't have sketch of the setup. But if you look at this video , I think you can see the setup of the motor to the wheel.

I only need to know how much torque is needed for the motor to move the wheel.
 
Last edited by a moderator:
I see three reasons to need torque:
- balancing. Depends on the quality of your balancing. Better (quicker, finer) -> less torque
- acceleration. Accelerating 93kg with 1m/s^2 needs 93N, for example, divide that by your wheel radius to get torque for both wheels together.
- angular acceleration. I would expect that this is negligible.
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
3K
Replies
9
Views
2K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 11 ·
Replies
11
Views
4K
  • · Replies 2 ·
Replies
2
Views
4K
  • · Replies 8 ·
Replies
8
Views
7K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 17 ·
Replies
17
Views
4K
  • · Replies 58 ·
2
Replies
58
Views
9K
Replies
58
Views
9K