TipTo highlight any selected signal in the Simulink model, click. To remove a signal
from the input or output list, click. When you have selected multiple signals, you can
reorder them using and. For more information on how to specify signal locations
for a tuning goal, see “Specify Goals for Interactive Tuning” on page 10-39.
Options
Use this section of the dialog box to specify additional characteristics of the overshoot
goal.
- Limit % overshoot to
Enter the maximum percent overshoot. Overshoot Goal cannot reliably reduce the
overshoot below 5%- Adjust for step amplitude
For a MIMO tuning goal, when the choice of units results in a mix of small and large
signals in different channels of the response, this option allows you to specify the
relative amplitude of each entry in the vector-valued step input. This information is
used to scale the off-diagonal terms in the transfer function from reference to tracking
error. This scaling ensures that cross-couplings are measured relative to the amplitude
of each reference signal.For example, suppose that tuning goal is that outputs 'y1' and 'y2' track
reference signals 'r1'and 'r2'. Suppose further that you require the outputs to
track the references with less than 10% cross-coupling. If r1 and r2 have comparable
amplitudes, then it is sufficient to keep the gains from r1 to y2 and r2 and y1 below
0.1. However, if r1 is 100 times larger than r2, the gain from r1 to y2 must be less
than 0.001 to ensure that r1 changes y2 by less than 10% of the r2 target. To ensure
this result, set Adjust for step amplitude to Yes. Then, enter [100,1] in the
Amplitudes of step commands text box. This tells Control System Tuner to take into
account that the first reference signal is 100 times greater than the second reference
signal.The default value, No , means no scaling is applied.- Apply goal to
Overshoot Goal