How to make the vehicle body mass and the horizontal distance from CG to front/rear axle variable?

I am a matlab user for simulating the hybrid vehicle. For the hybrid truck mass is variable during the simulation, which causes the horizontal distance from CG to front/rear axle are also variable. So how can I define a variable in the MATLAB/Simulink InitFcn file to simulate the variable vehicle mass?

Answer 1

[Steve Miller]

The Vehicle Body block in Simscape Driveline allows you to vary mass, inertia, and CG values during simulation.

https://www.mathworks.com/help/physmod/sdl/ref/vehiclebody.html

If you want to vary the location of the CG during simulation, you can feed the x and y position as inputs to the CG port if Externally-defined additional mass is set to "on".