Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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A Study for Effects of Automatic Transmission Fluid on Fuel Economy

자동변속기유가 연비에 미치는 영향에 대한 연구

  • Cha, Sang-Yeob (Research & Development Division for Hyundai Motor Company & Kia Motors Corporation) ;
  • Yang, Si-Won (Daeduk Institute of Technology, SK Corporation)
  • 차상엽 (현대자동차(주) 연구개발본부) ;
  • 양시원 (SK주식회사 대덕기술원)
  • Published : 2005.06.01
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Abstract

In order to improve the fuel economy by design change of automatic transmission, various technologies such as increased shift stages, slip control of lock-up clutch and compact and low-weight design have been developed. And also many OEMs have developed their own ATFs as a part of these automatic transmissions. In this study, to investigate the effects of ATF characteristics on fuel economy, we got the worldwide OEM ATFs and made some reference fluids. And physical properties, frictional characteristics and fuel economy using dynamometer test for these fluids were evaluated. From the investigation, it was found that viscosities of ATFs are correlated with fuel economy in dynamometer test and reducing the viscosities made it possible to obtain fuel economy.

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References

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