I have been using the Mathworks "Formula Student: Physical Modeling Training" tutorial videos to create an accurate vehicle simscape model. Part 4 discusses how to model powertrain and I have been having an issue with this.
I am using a torque curve data from an engine dyno to input in to the generic engine block. However the power output drops to zero when a gear change is implemented in the simulation. The torque also seems to feedback data that I would not expect. I am using a three gear subsystem set up as shown:
Running the simulation gives a high initial value of Power which exponentially decreases to zero. If I change the initial rpm of the engine then I achieve a power graph which is more representable, both of which can be seen below:
This graph shows for a run in a constant gear. If I change gear the power rises initially and then drops back to zero gradually. I am new to Simscape and I am not sure if I have run with an incorrect parameter or need to model this differently. Any help or suggestions would be great.
Thanks, Ryan
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