Week - 4

1 Implement control logic of a “washing machine” using Stateflow as per given sequence:

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

Stateflow:It includes transition diagrams,flow charts,state transition tables.

Control Logic:It is the logic of the model system using state flow.

Given Data:

Socking-0 to 200sec

Washing-200 to 300 sec

Rinsing-300 to 320 sec

Drying-320 to 370 sec

Blocks used

Constant,Lamp,Slider Switch,State Flow,Display

Model

State flow:Washing Machine Control Logic

Diffrent States of Model

Socking

Washing

Rinsing

Drying

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

Given Data

Speed Range(kmph) Gear

0 to 15 - 1

16 to 25 - 2

26 to 40 - 3

41 to 60 - 4

Above 61 - 5

Explanation

When the shifter is pushed for the desired gear the shaft rotates at the speed of the engaged gear.Upshifting is shifting for higher gears

Downshifting means going for lower gears.

Blocks used

Constant,slider gain,Lamp,Custom Gauge,Scope,State Flow

MODEL

Procedure

At initial state,the slider position is at 0

As we increse the Gear speed is also Incresed as per the given data

STATEFLOW:Gear shift control logic

At 1st gear

At 2nd Gear

At 3rd Gear

At 4th Gear

At 5th gear

Output

From output we can see that the shifting occurs according to the input.