The current trend towards an increasing electrification of road vehicles brings to life a whole series of unprecedent design issues. Among these, the ageing process that affects the lifetime of lithium-ion based energy storage systems is of particular importance since it turns out to be extremely sensitive to the variation of battery operating conditions normally occurring especially in hybrid electric vehicles (HEVs). This paper aims at analyzing the impact of operating conditions on the predicted lifetime of a parallel-through-the-road plug-in HEV battery both from thermal and ageing perspectives. The retained HEV powertrain architecture is presented first and modeled, and the related energy management system is implemented. Dedicated numerical models are also discussed for the high-voltage battery pack that allow predicting its thermal behavior and cyclic ageing. A wide variety of operating conditions is subsequently simulated including different driving scenarios, ambient temperatures, vehicle payloads, and battery state-of-charge (SOC) conditions. Obtained results highlight considerable impacts of the HEV operating conditions on the battery lifetime even in the advised operating temperature interval ranging from 15°C to 35°C. Moreover, charge-depleting HEV operation and high ambient temperature are identified as the most influencing conditions concerning the criticality of the use case. On the other hand, vehicle payload and specific driving scenario appear to have a reduced impact. Presented results might help engineers to improve the effectiveness of current high-voltage battery temperature control systems to extend the battery lifetime while ensuring improved energy economy.

Identifying Critical Use Cases for a Plug-in Hybrid Electric Vehicle Battery Pack from Thermal and Ageing Perspectives / Del Prete, Marco; Anselma, Pier Giuseppe; Belingardi, Giovanni. - In: SAE TECHNICAL PAPER. - ISSN 0148-7191. - 1:(2021). ((Intervento presentato al convegno 2021 SAE Powertrains, Fuels & Lubricants Digital Summit tenutosi a virtual nel 28-30 September 2021 [10.4271/2021-01-1251].

Identifying Critical Use Cases for a Plug-in Hybrid Electric Vehicle Battery Pack from Thermal and Ageing Perspectives

Del Prete, Marco;Anselma, Pier Giuseppe;Belingardi, Giovanni
2021

Abstract

The current trend towards an increasing electrification of road vehicles brings to life a whole series of unprecedent design issues. Among these, the ageing process that affects the lifetime of lithium-ion based energy storage systems is of particular importance since it turns out to be extremely sensitive to the variation of battery operating conditions normally occurring especially in hybrid electric vehicles (HEVs). This paper aims at analyzing the impact of operating conditions on the predicted lifetime of a parallel-through-the-road plug-in HEV battery both from thermal and ageing perspectives. The retained HEV powertrain architecture is presented first and modeled, and the related energy management system is implemented. Dedicated numerical models are also discussed for the high-voltage battery pack that allow predicting its thermal behavior and cyclic ageing. A wide variety of operating conditions is subsequently simulated including different driving scenarios, ambient temperatures, vehicle payloads, and battery state-of-charge (SOC) conditions. Obtained results highlight considerable impacts of the HEV operating conditions on the battery lifetime even in the advised operating temperature interval ranging from 15°C to 35°C. Moreover, charge-depleting HEV operation and high ambient temperature are identified as the most influencing conditions concerning the criticality of the use case. On the other hand, vehicle payload and specific driving scenario appear to have a reduced impact. Presented results might help engineers to improve the effectiveness of current high-voltage battery temperature control systems to extend the battery lifetime while ensuring improved energy economy.
File in questo prodotto:
File Dimensione Formato  
2021-01-1251.pdf

non disponibili

Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 1.69 MB
Formato Adobe PDF
1.69 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Paper_SAE_PFL_21_preprint.pdf

Open Access dal 22/03/2022

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: PUBBLICO - Tutti i diritti riservati
Dimensione 1.15 MB
Formato Adobe PDF
1.15 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2926933