Combined Slip Wheel STI Compile Error

Hello,

When I try to run the Combined Slip Wheel STI block I get the following error.

"Function 'Combined Slip Wheel STI/Outputs/W-axis to C-axis' (#178.146.161), line 7, column 11: "cross(XeCp, Fw)" "

Below are the inputs of my model (which I belive match the documentation). Any help is appreciated.

[Brandyn Pataki]

Hello,

I might have found the source of the issue but am unsure how to resolve it. It seems the Fw goes from being a 3 vector to a 1 vector.

This is in contrast to the Mw vector that acts as it is supposed to and remains a 3 vector

[Brandyn Pataki]

Hello,

One final update from me before I put this down for the night: When I connect a 3 zero vector the code runs fine but when I connect the 3 vector generated by my model the error is thrown. See the picture below showing the 3 vectors are the same.

[Brandyn Pataki]

Final Comment: I tired transposing my signal (Xe) before inputting it into the block and it still did not work.

Answer 1

[Infinite_king]

Hi Brandyn Pataki,

One possible reason for encountering the error is because of input dimension mismatch. As per the "Combined Slip Wheel STI" documentation :- https://www.mathworks.com/help/releases/R2022a/vdynblks/ref/combinedslipwheelsti.html#mw_75660c2f-d0b6-4646-af93-75efdc08da14_sep_bvbo42y-2, Port '' expects a vector representing Rotation angle of rim with respect to the wheel center, in .

However, it seems like you are passing a scalar instead of vector. Review the input values and make necessary changes.

Hope this is helpful.