The aim of this study is to investigate how lubricants used for transaxles in hybrid electric vehicles (HEVs) and electric vehicles (EVs) give an impact on the cooling performance for electric motors. As a result, reducing lubricant viscosity improve heat transfer in both natural and forced convection conditions. Quantitative analysis could reveal that kinetic viscosity and heat conductivity of fluids are highly influential on the cooling performance. In addition, we investigated the effect of lubricant additive on fatigue life in bearing components by using a thrust needle roller bearing tester. Extreme pressure agent could control a morphology of the bearing raceway surface, playing a role in extending a fatigue life of the bearing.
Lubricants Technology Applied to Transmissions in Hybrid Electric Vehicles and Electric Vehicles
Sae Technical Papers
2019 JSAE/SAE Powertrains, Fuels and Lubricants ; 2019
2019-12-19
Aufsatz (Konferenz)
Englisch
Lubricants Technology Applied to Transmissions in Hybrid Electric Vehicles and Electric Vehicles
British Library Conference Proceedings | 2019
|Lubricants for (Hybrid) Electric Transmissions
SAE Technical Papers | 2013
|Transmissions for Electric Vehicles
Springer Verlag | 2013
|Power split transmissions for hybrid electric vehicles
Tema Archiv | 2007
|Drive systems including transmissions for electric and hybrid electric vehicles
Europäisches Patentamt | 2019
|