How to write time dependent exponential with simple Simulink blocks

Hello,

How would I write this question in simulink using simple blocks:

V= I*R*(1 -exp(-t/(C*R)) ?

I think I am missing the feed back which decays the value over time.

I don't want to use blocks which lock values (R and C), as I want to create lookup tables which change the valuse later on. (this is for 2-RC branch battery model)

Any help would be greatly appreciated!

Answer 1

[Birdman]

Try this attached model.

[Joshua Allwright]

That is moving in the right direction. Will I always need to select a time constant? or can it be linked to the simulink time?

[Birdman]

It depends on your design. You can either select a time constant manually or you can link it to Simulink time.

[Joshua Allwright]

Can you use the 'Ts' block to do this?

Also, can I write my exponential function in terms of a transfer function?

Answer 2

[Priti Bawankule]

How , we will give the value of Ts, if that T is in vector form?