Week - 4

1. Implement control logic of a “washing machine” using Stateflow

Working Prinncple of Washing Machine

• Power
• Water
• Soaking
• Washing
• Rinsing
• Dryer
• End

Power

• Power is the energy source of washing machie to wash the cloths with the help of motor
• There are different types of motors are used in washing machine but universal motor is widely used motor in this application

Water

• After Turn on the switch of the machine we want to keep our cloths to the drum of the machine
• Then it sense the weight of the cloths and start filling water to the drum depends on the weight and quandity of the cloths
• If the warter not fill in the drum the led light (Lamp) indicate the issue

Soaking

• In Soaking Procces it will soak all the cloths with water and washing liquid

Rinsing

• In this Procces the drum will rotate in clock wise and anticlock direction with the help of universal motor

Dryer

• Heat blower is used in dryer to dry the cloths

End

• After drying the cloths machine indicate that washing was completed through led indication

Simulink Block

Blocks Used

• Constant
• Chart
• Display
• Lamp

Constant Block

• Constant Block Is used as a Input For power supply and water Supply

Chart

• Chart is used to make a State flow

• Symbols pane is used to configure input and output port of the chart

• There are two input port and seven output port

Display

• Display is show the current state of washing machine

Lamp

• Lamp is used to show the state of the machine by blinking the lamp

2. Make a Simulink chart for the “Gear shift” logic as per below conditions:

Speed Range(kmph) Gear

0 to 15 1

16 to 25 2

26 to 40 3

41 to 60 4

Above 61 5

Now We are going to make a simple Gear shif indicator in a simulink

Blocks used

• Constant
• Slider Gain
• Chart
• Display

Constant

• Constant is a block used for input to the slider gain

Slider Gain

• Slider gain is a block used to change the speed for the input

Chart

Chart block is used to make a state flow

Display

Display is used to show the output here the out the gear

Simulink

Now We can see how the simulink is working

• If the speed range is 0 to 15 kmph then gear is in 1st

• If the speed range is 16 to 25 kmph then gear should be 2nd

• If the Speed range is 26 to 40 kmph then gear is changed into 3rd

• If the Speed range is 41 to 60 kmph then gear is shifted to 4th

• If the speed range is crossed the 60 kmph then the gear is changed to 5th

Hence the simulink is completed