Project-1: Modelling an electric Car with Li-ion battery

Aim:

To design a model of Electric CAr which uses Li-ion battery with suitable motor.

Model Parameters:

Over all model:

Drive Cycle:

FTP75 Drive cycle has been choosen to verify the performance of the vehicle.

Battery Pack:

Lithum ion 200Ah battery with nominal voltage as 48V has been selected for the model.

Bridge Converter and DC motor:

PWM converter:

H-Bridge:

Mechanical Coupling:

Tyre and Vehicle Body:

Magic forula (Tyre):

Distance Calculator:

Output

Conclusion:

we can observe the deviation from the drivecycle command along with the speed of the vechicle. this can be neglected by tuning the PID controller by using system identification tool box. so that the desired speed will become equal with the drivecycle command .

Battery SOC is keep on decreasing upto 40%. Inorder to acheive the better distance , battery pack rating also needs to be improved.