Challenge -1

Course : Hybrid electric vehicle simulation using GT SUITE

Challenge aim :

1. To increase the mass of the vehicle by 50%.

2. To increase the coefficient of drag by 5%.

3. To compare the results for traction motor power without changing the drive cycle.

Solution :

Parameters to be changed

A) Vehicle drag coefficient

Initial : Vehicle drag coefficient = 0.308

Modified : Vehicle drag coefficient is increased by 5%

So, New vehicle drag coefficient = 0.308 + (5/100)*0.308

= 0.3234

Hence, the vehicle drag coefficient is modified to 0.3234

 

 B) Vehicle mass

Initial : Vehicle mass = 2721 kg

Modified : Vehicle mass is increased by 50%

So, New vehicle mass = 2721 + (50/100)*2721

= 4081.5 kg

Hence, the vehicle mass is modified to 4081.5 kg.

Results : The following image consist of electrical power, break power and speed.

 

The electrical power (traction motor power) for modified parameters is shown in the figure above.