Linearization Summary
The linearization summary table displays the following properties of the block
linearization:
- Block Path — Location of the block in the Simulink model. To highlight the block in
the model, click the block path. - Is On Path — Flag indicating whether the block is on the linearization path; that is, at
least one linearization input is connected to at least one linearization output through
the block. If you expect a block to be on the linearization path and it is not on the path,
check the analysis point configuration in your model. Incorrectly placed linearization
I/Os or loop openings can exclude blocks from the linearization path. Similarly, placing
incorrect analysis points can unexpectedly add blocks to the linearization path. - Contributes to Linearization — Flag indicating whether the block numerically
contributes to the overall model linearization. If a block unexpectedly does not
contribute to the linearization result, investigate the linearization of the block and
other blocks in the same branch of the linearization path. For example, if an adjacent
block on the linearization path linearizes to zero, an otherwise correctly linearized
block can be excluded from the linearization result. - Linearization method — The method used to linearize the model, specified as one of
the following:- Exact — The block linearization is computed using the defined analytic Jacobian of
the block. - Perturbation — The block does not have an analytic Jacobian. Instead, the block is
linearized using numerical perturbation of its inputs and states. Some numerically
perturbed blocks, such as those with discontinuities or nondouble input signals can
linearize to zero. - Block Substituted — The block linearization is specified using a custom block
linearization. Consider checking that the specified block linearization is correct for
your application. For more information, see “Specify Linear System for Block
Linearization Using MATLAB Expression” on page 2-162 and “Specify D-Matrix
System for Block Linearization Using Function” on page 2-163. - Simscape Network — The block diagnostics correspond to a Simscape network in
your model. For more information on linearizing and troubleshooting Simscape
networks, see “Linearize Simscape Networks” on page 2-204. - Not Supported — The block does not have an analytic Jacobian and does not
support numerical perturbation. Specify the linearization for this block using a
- Exact — The block linearization is computed using the defined analytic Jacobian of
Block Linearization Troubleshooting