Simscape Onramp Section 8.1 Task 9

I don't know how to Solve this problem. There is no hint and solution.

[Anmol Dhiman]

Hi Sudchai ,

Just for the hint

Double-click on the Discrete PID Controller block to open the Block Parameters dialog and set the requested parameters

Hope it helps

[Sudchai Boonto]

Hi Anmol

It was a bug. Yesterday, I do nothing but I pass the task.

[Anmol Dhiman]

Hi Sudchai,

What exactly is the bug? Can you explain in detail.

[Sudchai Boonto]

I am not sure but it is about the Inertia: w

[LARISSA HÜTTER]

Did you change the sum to |+-? It is not explicitly mentioned in that task. This worked for me, I had the same problem.

[Akarapong Aeukan]

Can anyone help send me a solution?

[Jen Standridge]

For me the solver block was not connected to the system, once I did that I was able to complete the task.

[Eslam]

any solution for it?

Answer 1

[vikash]

Hi, I faced a similar error when trying to do the Simscape Onramp. The error occurs in this particular step even if the earlier steps are correct due to an absent scope block as mentioned in the instructions.

A more nuanced error can occur in the presence of a shortage while connecting the Rotational Electromechanical Convertor in Task 3. It does not produce an error earlier but results in a mismatch in the block value in Task 9 of the onramp. Attaching both the images for reference.

Incorrect:

Correct: