Week - 4

1. Control logic of a washing machine using stateflow :

Given condition: 1. Power ON = System gets activated.

2. Water supply is unavailable then indicate through LED.

3. Soaking time = 200 sec

4. washing time = 100 sec

5. rinsing time = 50 sec

6. drying time = 20 sec.

Now modelling of washing machine for the above conditions using simulink :

1. The system is not activated since the power is off.

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The system is engaged when the power supply is available.

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2. There is a power source, but there is no water supply.:

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3.As the water supply is available, this activates the next state "Soaking" for 200 sec :

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4.Washing ON for 100 sec

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5.Rinsing for 20 sec :

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6.Drying for 50 sec :

7. END

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State flow Chart :

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

As per the given condition,

Speed Range(kmph) Gear

0 to 15 1

16 to 25 2

26 to 40 3

41 to 60 4

Above 61 5

Lets create a simulink model for the Gear shift logic.

These are the following blocks to be used for the setup..

1. State flow chart

2. Slider

3.Constant

4. Display

5. Lamps

The output is as per the given condition:

1st Gear : 0 to 15(kmph)

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2nd Gear : 16 to 25(kmph)

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3rd Gear : 26 to 40(kmph)

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4th Gear : 41 to 60(kmph)

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5th Gear : above 60(kmph)

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and that's how we did the Gear shift logic in the simulink. As we can see the lamp is lit according to the gear it shows and the gear is at the current running according to the speed we selected from slider.