ADAS// Lane change

7 Ansichten (letzte 30 Tage)
Nabil Mederbel
Nabil Mederbel am 21 Nov. 2019
Beantwortet: Sourav Bairagya am 8 Jan. 2020
Hello evryone,
i am working on generating a reference signal for an autonomous vehicule lane change, unfortunattely i could not solve this this problem since days, changed solver settings, data type...but still getting problem of propagating variable-size signal to a integrator input which support fized-size ?! there is no way to change the integrator input data type
PS: class mate has same model but it works fine !!
error :
Simulink cannot propagate the variable-size mode from the output port 1 of 'polynomial/Add1' to the input port 1 of 'polynomial/Integrator'. This input port expects a fixed-size mode. The variable-size mode originates from 'polynomial/MATLAB Function'. Examine the configurations of 'polynomial/Integrator' for one of the following scenarios: 1) the block does not support variable-size signals; 2) the block supports variable-size signals but needs to be configured for them.
simulink model
Capture.PNG
Simulink Function :
function ref = fcn(v0,vf,a_max)
%% script for calculating coeffcient for lane change %%
tf = (-3 *(v0 - vf)) / ( 2 * a_max ) ; % final time in seconds
c1 = -12 * (vf - v0)/ tf^3; % Coefficient C1
c2 = -6 * (vf - v0) / tf^2 ; % Coefficient C2
ref = ( 0.1667 * c1 * t.^3 ) - 0.5 * c2 * t.^2 + v0

Antworten (1)

Sourav Bairagya
Sourav Bairagya am 8 Jan. 2020
As the error suggests that it is possible that the block supports variable size signals but needs to be configured for them, you can right-click on the matlab function block and choose explore. Then, set its output to a "variable size" with upper and lower bounds on its dimension. Hope this will help.

Kategorien

Mehr zu General Applications finden Sie in Help Center und File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by