Why simulation validates motor control before hardware in Simulink - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the motor speed variable.

Simulink

motor_speed = [1]

Drag options to blanks, or click blank then click option'

Ainput

Bspeed

C0

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using variable names instead of initial numeric value.

Starting motor speed at 1 instead of 0.

We start motor speed at 0 before simulation.

2fill in blank

medium

Complete the code to simulate motor torque calculation.

Simulink

torque = motor_current [1] motor_constant

Drag options to blanks, or click blank then click option'

A/

B+

C-

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using addition or subtraction instead of multiplication.

Dividing instead of multiplying.

Torque is calculated by multiplying current by motor constant.

3fill in blank

hard

Fix the error in the simulation step size assignment.

Simulink

step_size = [1]

Drag options to blanks, or click blank then click option'

A0

B0.01

C-0.01

D'0.01'

Attempts:

3 left

💡 Hint

Common Mistakes

Using zero or negative values for step size.

Using string instead of numeric value.

Step size must be a positive number, not zero or negative or string.

4fill in blank

hard

Fill both blanks to create a dictionary of motor parameters with speed and torque.

Simulink

motor_params = {'speed': [1], 'torque': [2]

Drag options to blanks, or click blank then click option'

Amotor_speed

Bmotor_torque

Ctorque

Dspeed

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong variable names that do not exist.

Swapping speed and torque variables.

The dictionary keys 'speed' and 'torque' map to motor_speed and torque variables.

5fill in blank

hard

Fill all three blanks to filter motor speeds above threshold and create a result dictionary.

Simulink

result = {k: v for k, v in motor_params.items() if v [1] [2]
filtered_speed = result.get('[3]', 0)

Drag options to blanks, or click blank then click option'

A>

B10

Cspeed

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong comparison operator.

Using wrong threshold value.

Getting wrong key from dictionary.

We filter motor parameters where value is greater than 10 and get the speed value.