I have built a calculator based on a physical models for parts selection, or to check setup performances:
https://norde.cc/calculator.php
For the time being, you can determine your motor power, capacity, and gear ratio based on your requirements. You can also check your range, your system efficiency and your top speed based on your parts. Here is a screenshot:
Fields explanation
Power calculation
- Rider weight: Your weight in kg
- Speed: The average speed you would like to achieve
- Start time: Time to achieve your average speed
- Flat distance: Range you would like to achieve on flat road
- Climbing distance: Range you would like to achieve on slope
- Slope: Slope gradient on the road
- Motor efficiency: The efficiency of your motor
- Motor configuration: Dual or single
- Battery type: Chemical technology of your battery
- Battery configuration: Number of cells of your battery
Drivetrain calculation
- Motor pulley: Number of teeth for your motor pulley
- Wheel pulley: Number of teeth for your wheel pulley
- Wheel diameter: Diameter of the wheel (in mm)
- Center distance (Optional): Center distance between your motor pulley and your wheel pulley
- KV Motor: Motor kv constant
- Battery type: Battery technology
- Battery configuration: Number of battery cells
To perform a calculation, you can press āEnterā on a field.
Enjoy!