Problem with Simscape Onramp task 9

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Juan Manuel Ruiz Martíez
Juan Manuel Ruiz Martíez on 30 Mar 2021
Answered: LE DANH MANH on 2 Oct 2023
Hello, I can´t answer the last task, task 9, of the section 8.1 of the simscape onramp course, I do exactly what I´m requested to do but I always get it wrong, I´ve been for several hours trying it but I simply don´t understand what I´m getting wrong. I´ve looked for the answer on Youtube but literally nobady has upload it, at least I haven´t found anybody, does anybody knows how to obtain the answer or can anybody tell me where can I find the way to solve it?, thank you!

Answers (5)

Joel Van Sickel
Joel Van Sickel on 6 Apr 2021
Hello Juan,
can you provide insight into what is says is going wrong? There are 2 validation check marks that need to be passed for this one. Did you modify your PID controller to only be a PI controller (look for a drop down box). It can be solved.
  8 Comments
Joel Van Sickel
Joel Van Sickel on 22 Sep 2021
anyone on this thread, if you are still having issues, can you take a screen shot of what your scope output is? This will show if the model is running as expected. It should look something like this:
John, your issue is that there the connection between the inertia should not also be connected to the rotational reference. This is essentially locking the rotor in place.
Vislavath
Vislavath on 26 May 2023
Please provide complete diagram. I am facing same issue in 8.1 project-Electronic valve Task 9.

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Muhammad Awais
Muhammad Awais on 26 Jun 2022
Did anyone able to solve this issue. I am stuck at the last task.
  1 Comment
Herminio
Herminio on 29 Jun 2022
See Joel Van Sickel provided diagram dated 6 April 2021.
On my case, the problem are the connection between the Controlled Voltage Source, the resistor, inductor, Rotational Electromechanical Converter and reference.
Just followed Joel's diagram for it.

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Nimish Pachchhapurkar
Nimish Pachchhapurkar on 24 Nov 2022
I am unable to solve the last task even after trying everything mentioned above. This is my circuit.

Alexi De Avila Cadena
Alexi De Avila Cadena on 6 Jul 2023
I have the same issue. The inertia block has this question mark on it. I have no idea what I did wrong. Everything else seems to be right except this part.

LE DANH MANH
LE DANH MANH on 2 Oct 2023
You can write in command window as image:
I solved this issue. Good luck !!!

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