Linearization error "Cannot resolve: [blockname]"

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Filippo Davide Riccaboni
评论： Steve Miller 2022-11-25
Good evening,
I'm currently having a problem with Model linearizer toolbox in Simulink.
My model simulates the motion of a Tractor-Semitrailer vehicle given a certain steering wheel input. Simply put, the goal is to try to implement different control strategies which minimize certain outputs. The configuration is that of a simple feedback block diagram:
ref |--------------| input |-----------|
--->o--->| Controller |---------->| Vehicle |--------|
^ |--------------| |-----------| |
| output |
|----------------------------------------------------|
I'm trying to implement an Adaptive MPC by means of the built in Simulink block, Therefore I need to linearize the "Vehicle" block at certain timesteps. I'd like to do so using the model linearizer toolbox, but whenever I try to run it the Diagnostic viewer pops up and reads out as follows:
The funny thing is that when I tried to run the whole nonlinear model with other control strategies the code and block diagram worked a treat.
Has anybody ever encountered a similar problem?
Thank you in advance for your help!
  2 个评论
Luke Halberstadt
Luke Halberstadt 2022-2-7
编辑：Luke Halberstadt 2022-2-7
What happens if you use the linearization advisor as described here?
Troubleshoot Linearization Results at Command Line - MATLAB & Simulink (mathworks.com)
Does the "Model Linearizer" app open and then a later operation causes the diagnostic error?
Steve Miller
Steve Miller 2022-11-25
Something with the name "Vehicle" is in the error message, but it isn't clarified what. If you can figure out if this is a function, variable, library link, ... then you will be closer to figuring out the source of the issue.
--Steve

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