Week - 4
1) Answer:
Aim:
To implement the control logic of a washing machine using stateflow in simulink.
Objective:
1. To implement the control logic of a washing machine using state flow as per given sequence
- If the power supply is avabilable the system gets activated.
- If the water supply is not availabe stop the process & indicate through LED.
- Soaking time should be 200s following by washing time of 100s
- Then rinsing happens for next 20s & dryer runsfor 50s.
Block diagram of model:

Chart Digram:

Parameters:

We have given water,soak, washing, rinsing, dryer, cycle as Output of the chart. We have given our water_supply & power_supply as Input of the chart.
Simulation time parameters:
We used 430sec, so that it can cover the whole cycle and sufficent time to store and solve the parameter.

OUTPUT:

As we can observe ferom above figuer, all the states have been executed and indicating the process completion indicator all showning Green.
CONCLUSION:
The simulation of the Washing machine using state flow is done and the result is satisfactory.
2) Answer:
AIM:
To make a simulink chart for the Gear shift logic.
OBJECTIVE:
Making a simulink chart for the Gear shift for the below mentioned parameter.
Speed Range(Kmph) Gear
0 to 15 1
16 to 25 2
26 to 25 3
41 to 60 4
Above 61 5
Simulink Model:
The file which contains the model of Gear shift is attached with this report.
Block diagram of model:

Chart diagram:

Parameter:

Here we give speed as an Input & Output for the chart.
Simulation Time Parameter:
Here we gave time as 'inf' for our simulation should run until we stop it.

INPUT:
We use slider gain to provide input to the chart.

OUTPUT:
The Output produced is recorded when it's displaying the each gear.
Gear-1:
speed range: 0 to 15Kmph.
Input speed: 10Kmph.
Colour: Green.

Gear-2:
Speed range:16 to 25Kmph.
Input speed: 20Kmph.
Colour: Blue.

Gear-3:
Speed range: 26 to 40Kmph
Input speed: 30Kmph
Colour: Light Blue

Gear-4:
Speed range: 41 to 60kmph.
Input speed: 50Kmph
Colour: Pink

Gear-5:
Speed range: Above 60Kmph.
Input speed: 80Kmph.
Colour: Red.

CONCLUSION:
Created a state flow for Gear shift using simulink and the results are satisfactory.