Why simulation validates motor control before hardware in Simulink - See It in Action

Why Simulation Validates Motor Control Before Hardware

📖 Scenario: Imagine you are designing a motor control system for an electric vehicle. Before building the real hardware, you want to make sure your control logic works well and safely. Using simulation helps you test your ideas without risking damage or extra cost.

🎯 Goal: You will create a simple simulation of motor speed control using Python. This will help you understand why simulation is important before using real hardware.

📋 What You'll Learn

Create a dictionary with motor speed readings at different times

Add a speed threshold variable to check if motor speed is safe

Use a loop to find all times when motor speed exceeds the threshold

Print the list of times when the motor speed was too high

💡 Why This Matters

🌍 Real World

Simulation helps engineers test motor control systems safely and cheaply before building physical devices. It prevents damage and saves time.

💼 Career

Understanding simulation is key for roles in embedded systems, robotics, and automotive engineering where motor control is critical.

1

Create motor speed data

Create a dictionary called motor_speeds with these exact entries: 0: 1000, 1: 1500, 2: 2300, 3: 1800, 4: 2500 representing time in seconds and motor speed in RPM.

Simulink

# Create the motor_speeds dictionary with time and speed values
# Your code here

Hint

Use curly braces {} to create a dictionary with time as keys and speed as values.

2

Set speed threshold

Create a variable called speed_threshold and set it to 2000 to represent the maximum safe motor speed in RPM.

Simulink

motor_speeds = {0: 1000, 1: 1500, 2: 2300, 3: 1800, 4: 2500}
# Create speed_threshold variable and set it to 2000
# Your code here

Hint

Just assign the number 2000 to the variable speed_threshold.

3

Find times when speed exceeds threshold

Create an empty list called high_speed_times. Use a for loop with variables time and speed to iterate over motor_speeds.items(). Inside the loop, if speed is greater than speed_threshold, append time to high_speed_times.

Simulink

motor_speeds = {0: 1000, 1: 1500, 2: 2300, 3: 1800, 4: 2500}
speed_threshold = 2000
# Create high_speed_times list and fill it with times when speed > speed_threshold
# Your code here

Hint

Use motor_speeds.items() to get time and speed pairs. Check speed against threshold and add time to the list.

4

Display times with high motor speed

Write a print statement to display the high_speed_times list.

Simulink

motor_speeds = {0: 1000, 1: 1500, 2: 2300, 3: 1800, 4: 2500}
speed_threshold = 2000
high_speed_times = []
for time, speed in motor_speeds.items():
    if speed > speed_threshold:
        high_speed_times.append(time)
# Print the high_speed_times list
# Your code here

Hint

Use print(high_speed_times) to show the list of times.