Week 7 Challenge

Week:8 (fuel cell)

Load the vehicle parameters. Complete the vehicle model by modelling the remaining equations. Set simulation stop time to 598 sec. the output should be the vehicle velocity.

Aim: To model the vehicle body using driver block, traction force, vehicle dynamics.

Blocks used: constants, Integrator, Saturation, terminator memory, add, product

We need to create a separate subsystem for the driver block, total resistance block, vehicle model block.

This resistance force includes rolling resistance, aerodynamic drag force, hill climbing force.

Rolling resistance Fr=m*g*U-res*cos(theta)

Aerodynamic drag force Fa=(1/2)*Af*adc*cd*v^2

Hill climbing is also called as gradability, Fg=m*g*U-res*sin(theta)

By using all the information now we need to model the vehicle as below

Simulink model:

Driver block:

Vehicle model:

Result: