AutoCal

Work in progress. Currently under testing.

This Python library provides a comprehensive toolbox of mathematical formulas commonly encountered in the automotive industry, with a particular focus on electric vehicles (EVs) and Brushless DC (BLDC) motors. The library offers a valuable resource for engineers and researchers working on EV components, motor control systems, and related applications.

Developed by Gladson Thomas and Sumati Ladane.

This repository provides a collection of mathematical formulas commonly used in the automotive industry, with a particular focus on Brushless DC (BLDC) motors.

Installation

Binary installers are available at Python Python Package Index (PyPi).

pip install autoCal

The source code is hosted on github at https://github.com/GladsonOfficial/AutoCal

Usage

The formulas are categorized into 2 parts. Speed calculations and motor calculations.

Speed Calculation: This contains the formulas related to general speed conversions.

List of functions:

wheel_rpm_to_kmph(wheel_rpm: float, tyre_size: float) -> float:
wheel_rpm_to_mph(wheel_rpm: float, tyre_size: float) -> float:
kmph_to_wheel_rpm(kmph: float, tyre_size: float) -> float:
mph_to_wheel_rpm(mph: float, tyre_size: float) -> float:
wheel_rpm_to_time_required_for_one_wheel_rotation(rpm: float) -> float:
kmph_to_time_required_for_one_wheel_rotation(kmph: float, tyre_size: float) -> float:
mph_to_time_required_for_one_wheel_rotation(mph: float, tyre_size: float) -> float:

Motor Calculations: This contains the formulas related to BLDC motors.

List of functions:

motor_rpm_to_kmph(motor_rpm: float, tyre_size: float, drivetrain_ratio: float) -> float:
motor_rpm_to_mph(motor_rpm: float, tyre_size: float, drivetrain_ratio: float) -> float:
kmph_to_motor_rpm(kmph: float, tyre_size: float, drivetrain_ratio: float) -> float:
mph_to_motor_rpm(mph: float, tyre_size: float, drivetrain_ratio: float) -> float:
wheel_rpm_to_motor_rpm(wheel_rpm: float, drivetrain_ratio: float) -> float:
motor_rpm_to_wheel_rpm(motor_rpm: float, drivetrain_ratio: float) -> float:
motor_rpm_to_one_motor_rotation_time(motor_rpm: float) -> float:
wheel_rpm_to_one_motor_rotation_time(wheel_rpm: float, drivetrain_ratio: float) -> float:
get_hall_events_per_motor_rotation(pole_pairs: int) -> float:
get_hall_events_per_wheel_rotation(pole_pairs: int, drivetrain_ratio: float) -> float:
get_hall_event_interval(motor_rpm: float, pole_pairs: int) -> float:
get_hall_events_per_second(motor_rpm: float, pole_pairs: int) -> float:
get_hall_events_per_minute(motor_rpm: float, pole_pairs: float) -> float:

Examples

Finding time required for wheel to complete one full rotation using km/h

from autoCal import speedCalculations as sc
print(sc.kmph_to_time_required_for_one_wheel_rotation(25, uc.inch_to_m(26)))