Error: block_diagram does not have a parameter named 'payloadMass'

Hello

I have a model named ‘asbHybridAircraft4_7’, and I want to run it with the parameter 'payloadMass' configured with the sim fuction.

I used the following code

payloadMass=(tank_num*24+ha_i/34*1+160+loadMass)/0.454;

simout=sim('asbHybridAircraft4_7','payloadMass',payloadMass)

but an error occured

block_diagram does not have a parameter named 'payloadMass'

I'm very confused. Because the model dose have a parameter named 'payloadMass'.

Maybe it's not a parameter and just a variable. So I also tried

simout=sim('asbHybridAircraft4_7','WorkspacePayloadInLbm',payloadMass)

But the error occured again.

Could anyone tell me how to solve the error?

Thanks in advance.

Answer 1

[Guanwei Zeng]

I also tried the get(gcbh) function to see the parameter.

checkbox_payload_mass: 'on'

payload_mass_lbm: 'payloadMass'

And I changed the parameter name into 'payload_mass_lbm', but it didn't work.