Final Project: Design of an Electric Vehicle

Final Project: Design of an Electric Vehicle

Create a MATLAB model of an electric car that uses a battery and a DC motor. Choose suitable blocks from the Powertrain block set. Prepare a report about your model including the following:

Objectives:

1. System-level configurations

2. Model parameters

3. Results

4. Conclusion

Solution:

EV Powertrain Block diagram:

Main components of an Electric Vehicle

1. Battery

2. Power Electronics Controller & Control signals (PWM)

3. Motor

4. Wheels

5. Charger

I am taking the reference: MG ZS EV << Click Here for PDF

MG ZS EV/Curb weight: 1,568 kg

Battery Capacity: 44.5 kWh 394 V lithium-ion

Current: 112.94Ah

Tyre & Wheel: 215/50 R17 Diamond cut Machined Alloy Wheel

For this model design 1st, we need a Battery Capacity: 44.5 kWh 394 V lithium-ion

create a subsystem of the battery.

SoC % Subsystem

2nd subsystem is the Motor parameters and motor control parameter:

We are controlling the motor speed using the H-bridge and PWM with the duty cycle using the below blocks.

motor shaft as an output will connect to wheel block.

3rd subsystem is Wheel and vehicle body parameters:

Vehicle Body block is to determine the vehicle mass, frontal area, drag coefficient, ait density parameters.

this block is Tire (Magic Formula) which helps in configuring the tire parameters:

Simulink Model for Electric Vehicle:

Result:

The Distance Traveled by the EV is 9.924Km.

SoC% is in between 55%-60%.

#Conclusion

1. The range of the vehicle depends upon the various parameter such as
   1. battery capacity, acceleration, and declaration of vehicle
   2. Motor efficiency
   3. wheel quality
2. In the SoC% graph, you can observe the charging and discharging slop clearly.

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