Gear Shift Indicator model using Simulink Stateflow

AIM : To make a Simulink chart for the 'Gear shift' logic as per below conditions :

SOLUTION :

Gear Shift Logic :

Stateflow Model -

• The Chart is added from the Simulink library.
• In order to be able to give the speed input while the simulation is running, a Slider Gain block is added.
• To visualize the number of engaged gear, a simple Display block is used.

Stateflow Chart -

• Inside the chart, the required conditions are implemented using the State blocks.
• Here, G is common output parameter used for all the states, which is then connected to the Display block in the main model.
• Each of the step comes into play as per the provided conditions.
  For example, if the speed is below 15, gear 1 is in engaged condition. But if the speed goes beyond 15, gear 1 disengages and gear 2 gets engaged.

Result :

• In order to change the input while simulation is running, the simulation time is kept infinite.
• Now, while the system is getting simulated, the slider of the Slider Gain is moved randomly and simultaneously, the engaged gear number is visualised using the Display block.

https://drive.google.com/file/d/1UbrtkhauY25D885on7Rv2XrDwFRZg7ZM/view?usp=sharing