Questions about Longitudinal Driver model in Powertrain Blockset

Question

jiajin zhang 2022-5-8

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https://ww2.mathworks.cn/matlabcentral/answers/1714105-questions-about-longitudinal-driver-model-in-powertrain-blockset

回答： Vincent Hu 2022-8-25

In the powertrain blockset, for the Longitudinal Driver model, why give the vehicle a brake signal instead of reducing the accelerator when the actual speed is less than the target speed. For that, the vehicle will brake frequently.

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Answer 1

Vincent Hu 2022-8-25

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https://ww2.mathworks.cn/matlabcentral/answers/1714105-questions-about-longitudinal-driver-model-in-powertrain-blockset#answer_1033500

You need to tune the driver model parameters to find a good control for your vehicle model.

From your description, I can see the driver model is too aggresive, you need to reduce the PI gain if you choose PI based driver model. You can try with try-and-error method to get a best solution after several trial tuning. I'm not sure which drive model you are using, if possible, you can contact me with email vhu@mathworks.com, and we can have a chat on phone.