Week - 4

1) Aim

-->To implement control logic of a “washing machine” using Stateflow as per below condition

• If the power supply is available, the system gets activated
• If the Water supply is not available, stop the process & indicate through LED
• Soaking time should be 200s followed by Washing time of 100s.
• Then rinsing happens for next 20s & dryer runs for 50s
• After all the processes have completed turn on the finished LED

NOTE:

* The washing machine is operated in electro machanical

*Electronic controllers are used to switch the signals for the corresponding operation.

*The function operates as below:

Step 1: Power ON

Step 2: If water flow is present proceed step 3 , If no water flow Switch OFF the unit

Step 3: Water fills the drum till the limit with the electronic controls signal and when water reaches the limit water IN command will cut OFF

Step 4: Fill the cloths in the drum as per the limit (Kg) and add the ditergent and close the machine

Step 5: Soaking operation will take place as per the time interval which is controlled using the controllers

Step 6: After the soaking process, Washing process will take place till the fixed time

Step 7: After the washing process is completed , Rinsing of water will be processed

Step 8: Drying of cloths will be performed when the complete water is rinsed

Step 9: When complete operation is completed a busser sound is given as a command of finish

Controlling operation of machine using state flow:

*Using CHART the controll operation will be performed

*The input command ON & OFF is given by 0 or 1

*The outpurt is viewed in display or by Lamp

State flow of machine:

Symbols pane:

Simulink Model:

NOTE:

The lamp will glow in green when the specific operation is processed

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Aim:

-->To 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

Controlling operation of machine using state flow:

*Using CHART the controll operation will be performed

* Speed is determined as input command

*Gear is determined as output command

NOTE:

According to the increase or decrease in speed the shifting of gear is taken place

State flow of gear shift:

Symbols pane:

Simulink Model:

NOTE:

Here to increase and decrease the speed Slider Gain is used

Min & Max kmph is mentioned in Low and High section

Condition 1:

When speed is from 0 - 1 (kmph) gear will be in 1

Condition 2:

When speed is from 16 - 25 (kmph) gear will be in 2

Condition 3:

When speed is from 26 - 40 (kmph) gear will be in 3

Condition 4:

When speed is from 41 - 60 (kmph) gear will be in 4

Condition 5:

When speed is from 41 - 60 (kmph) gear will be in 5

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