This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Lubricants Technology Applied to Transmissions in Hybrid Electric Vehicles and Electric Vehicles
ISSN: 0148-7191, e-ISSN: 2688-3627
Published December 19, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
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.
CitationNarita, K. and Takekawa, D., "Lubricants Technology Applied to Transmissions in Hybrid Electric Vehicles and Electric Vehicles," SAE Technical Paper 2019-01-2338, 2019, https://doi.org/10.4271/2019-01-2338.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|[Unnamed Dataset 2]|
|[Unnamed Dataset 3]|
- Kurokawa, Yano, Matsuoka, and Ando , “Hybrid vehicles, Electric vehicles, Fuel cell vehicles and Traction motors,” Journal of Society of Automotive Engineers of Japan 72(8), (2018).
- Society of Automotive Engineers of Japan, Inc. ed. Automoive Technology Handbook - Design (EV-Handbok) Edition (2016)
- Onimaru, et.al, Denso Technical Review Vol.13, No.1 (208)
- Seki , e. al., Heat transfer engineering, published by Moriita syuppan (1988)
- JIS K2242 : 2012, Heat treating fluids
- Chemical Society of Japan, ed., Chemistry Handbook Basic, 4th revision (1993)
- Tsubouchi and Deshimaru, Development study of Motor coolant as well as Lubricants for HEV/EV, in Conference proceedings of Society of Automotive Engineers of Japan 20105502 (2010)
- Yamamoto et.al., “Technologies for motor noise reduction in the newly-developed electric powertrain with mechatronical integration system,” Transactions of Society of Automotive Engineers of Japan Vo 47(6):1349-1353, (2016).
- Ichihashi, Fijita , Yonekawa and Matsumoto, Influence of lubricating oil additives on the pitting fatigue life of thrust needle bearing, Journal of Japanese society of Tribologist, Vol.55, No.2, p128-135 (2010)
- Narita and Priest, Boundary lubrication film formation form phosphorus antiwear additives with application to metal V-belt type CVT lubricant, Journal of Engineering Tribology, Vol.222, P343-356 (2008)