Optimization of Battery Design for a EV

How does one setup the requirement optimization function for Optimizing the Battery Design through Response Optimization App on Vehicle Composer ?

The function is of the nature : min f(x) = w1*ECR + w2*Cost

I have run the baseline simulation, now I want to do a optimization study, But I am new to this enviroment and I am trying to understand how does one setup the Optimization function for the EV.

Refrence : https://www.mathworks.com/videos/master-class-fulfill-range-acceleration-and-cost-targets-using-battery-sizing-1669124206915.html

Answer 1

[Sam Chak]

Hi @Shardul

I didn't watch the video. However, with the cost function, you apply the optimizer:

fun = @costfun;
x0  =  1;
A   = -1;
b   =  0;
x   = fmincon(fun, x0, A, b)

Local minimum found that satisfies the constraints.

Optimization completed because the objective function is non-decreasing in 
feasible directions, to within the value of the optimality tolerance,
and constraints are satisfied to within the value of the constraint tolerance.

x = 2.4723

% Cost function
function J = costfun(x)
    w1   = 1;               % a constant
    w2   = 1;               % a constant
    ECR  = x.^2 - 5*x + 6;  % a formula in terms of x
    Cost = tanh(x).^2;      % a formula in terms of x
    J = w1*ECR + w2*Cost;
end