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There are large numbers of variables that affect seal performance, for example, temperature, grease and dusty. This paper aims the study one of these variables, the swelling. Swelling is the absorption of the liquid by the rubber and this liquid absorption can deeply alter physical and chemical properties and hence change tensile strength, extensibility and hardness of the rubber. A review about seal and the characteristics of the seal performance will be made and also a study about what this phenomenon affects the seal performance. Thus the purpose of the present paper is to develop the conception of swelling by investigating the characteristics of swelling deformation.

Electric vehicles are spreading across the world as a promising solution for the creation of a clean and sustainable fleet as part of the mobility for the future. Mainly at emerging markets, such as the Brazil, an introductory step for this electrification process can be expected, where the Hybrid Electric Vehicles (HEV) play an important role as an enabler to this transition. This first electrification phase already contributes to the current mobility environmental challenges and provides a larger adaptation period for the industry and the infrastructure. Further studies are required to explore the battery pack dimensioning processes and its influences on the main characteristics of the powertrain. This work presents a dimensioning optimization process of single-cell battery packs for Plug-in Hybrid Electric Vehicles (PHEV) considering the impact of that over the vehicle performance and efficiency characteristics on the ABNT driving cycle.