Simulink model of Active Suspension

AI Thread Summary
The discussion centers around a model for an active suspension system created in Matlab, with a focus on verifying the accuracy of suspension working space, body acceleration, and tire load graphs. The model is questioned for its passive characteristics due to a lack of controller input, relying solely on road disturbance inputs. The creator clarifies that the project is a lab practice paper for an assignment, aiming to analyze suspension effects from ground input, and acknowledges the mislabeling of the model as "Active Suspension." There is a suggestion to simplify the approach by using equation models for a quarter car and matrix inputs. The creator seeks feedback on the placement of body acceleration and suspension working space scopes, as well as the correctness of the results obtained from the model.
Jones1987
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Hi, I've created the model for an active suspension, however my suspension working space, body accel and tyre load graphs, I'm not sure if they're correct.

If anyone could look at the model and tell me if I have gone wrong, I'd be grateful.

Thanks.

http://cl.ly/251C3e0y3d0Y1z1j0K1W (Model location).

Values:
ks = 22000
kt = 192000
cs = 1500
mw = 45.5
mb = 350
 
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to me the model looks passive as there is no controller input, just the road disturbance input. easier is to create equation models for a quarter car and get some matrix inputs and try it that way. what is your project about?
 
parmz_11 said:
to me the model looks passive as there is no controller input, just the road disturbance input. easier is to create equation models for a quarter car and get some matrix inputs and try it that way. what is your project about?

Hi,

It's a lab practice paper I requested, for an upcoming assignment. I just want the effects of the suspension from its ground input. My bad I shouldn't have really called it 'Active Suspension'.

I have created and played with this setup in Matlab, but Simulink is a whole different area for me. From what I can see, the setup seems right from the EOM. I'm just not sure if the Body accel and SWS scopes are in the right position, and if they are, are the results I'm obtaining correct?
 

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