Inconsistent results using SimDriveline's variable gear ratio

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I have been trying to create a model of a continuously variable transmission. The variable gear ratio seemed to be an obvious choice for the gearing of the transmission, but so far I haven't been happy with the results. I am using the coriolis acceleration by taking the derivative of the gear ratio. What worries me is that I am getting much different results depending on how much of the final gear ratio is put into the variable gear ratio block. For example, if I want a final drive ratio of 1:1 up to 10:1, it is considerably different if I vary the variable gear ratio from 1 to 10 than if I vary it from 0.1 to 1.0 with a final drive gear of 10. I am trying to understand the cause of this problem, or at least determine the most realistic approach.
Thank you,
Adam

Answers (1)

Arnaud Miege
Arnaud Miege on 15 Apr 2011
It's difficult to provide a definite answer without seeing the model first. I would, however, suggest that (if you can) you try the new version of SimDriveline in R2011a, which now leverages the Simscape technology. It may help solve your problems.
HTH,
Arnaud

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