Robust control for electric vehicle powertrains
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This paper considers the application of robust control methods (μ- and H∞-synthesis) to the speed and acceleration control problem encountered in electric vehicle powertrains. To this end, we consider a two degree of freedom control structure with a reference model. The underlying powertrain model is derived and combined into the corresponding interconnected system required for μ- and H∞-synthesis. The closed-loop performance of the resulting controllers are compared in a detailed simulation analysis that includes nonlinear effects. It is observed that the μ-controller offers performance advantages in particular for the acceleration control problem, but at the price of a high-order controller.
KeywordsAutomotive control electric vehicle powertrains robust control
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