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Article Dans Une Revue Control Engineering Practice Année : 2013

An observer looks at the cell temperature in automotive battery packs

Maxime Debert
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Guillaume Colin
Gérard Bloch
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Yann Chamaillard

Résumé

The internal temperature of Li-ion batteries for electric or hybrid vehicles is an important factor influencing their aging. Generally not measured, it can be reconstructed from an external measurement and a model. This paper presents the simplified modeling of heat transfers in a battery module, leading to a Linear Parameter-Varying (LPV) model. Then, a polytopic observer is proposed to estimate the cell temperature and internal resistance, ensuring a tradeoff between the convergence speed and the noise of the estimated states. Experimental results show the good quality of the estimation and the diagnosis potential offered by internal resistance reconstruction.
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Dates et versions

hal-00821701 , version 1 (17-05-2013)

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Maxime Debert, Guillaume Colin, Gérard Bloch, Yann Chamaillard. An observer looks at the cell temperature in automotive battery packs. Control Engineering Practice, 2013, 21 (8), pp.1035-1042. ⟨10.1016/j.conengprac.2013.03.001⟩. ⟨hal-00821701⟩
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