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Optimal Control of a parallel hybrid vehicle equipped with a dual electrical storage system

Abstract : This work studies the minimization of the fuel consumption of a parallel hybrid vehicle over a driving cycle. The considered vehicle is a conventional vehicle equipped with a low cost hybridization system. A single electric machine replaces both the starter and the alternator. Fuel savings result mainly from two functionalities, namely the regenerative braking and the engine stop&start. A dual electrical power source is also used. An ultra-capacitor is combined to a lead-acid battery by means of a DC/DC converter. Under an assumption commonly made in the literature, it is shown that the optimal control problem with the two electrical storage systems can be reformulated as a new problem where a single equivalent electrical buffer is involved. The optimal power split between the electrical and mechanical paths is determined offline using the Pontryagin's Maximum Principle. The converter control is optimized in a second step in such way that some recommendations on the battery usage are met.
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https://hal-uphf.archives-ouvertes.fr/hal-03469019
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Submitted on : Tuesday, December 7, 2021 - 2:37:05 PM
Last modification on : Thursday, March 17, 2022 - 10:41:52 AM

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Clément Fontaine, Sebastien Delprat, Sebastien Paganelli, Thierry-Marie Guerra. Optimal Control of a parallel hybrid vehicle equipped with a dual electrical storage system. 7th international symposium on advances in automotive control, International Federation of Automatic Control (IFAC), Sep 2013, Tokyo, Japan. ⟨10.3182/20130904-4-JP-2042.00165⟩. ⟨hal-03469019⟩

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