Power Transmission of CVT Using a Metal V-belt under Fluctuating Torque

金属V ベルトを用いたCVT のトルク変動下での動力伝達

The present study shows how the power is transmitted from driving to driven pulleys under fluctuated torque for metal V-belt CVT. The applied torque amplitude is periodically greater than a half of the mean torque for every one rotation. Consequently, the torque applied to the smaller pitch diameter pulley is often enough to cause sliding slip for every rotation. However, the experimental results confirmed that no sliding slip macroscopically occurred while partial slip called micro sliding slip occurred when the maximum torque exceeded the critical torque for a given thrust. The micro sliding slip reduces the power transmitting efficiency, and probably gives additional damage to pulleys and elements of the belt. When the authors applied a periodically altered thrust synchronized to the fluctuating torque, the efficiency appreciably increased, suggesting that the metal V-belts drives were more widely applicable to reduced size and cylinders engines.はじめに、CVTの見かけの摩擦係数の決定方法について示した。次いで、トルク変動下での伝動機構について、実験的に明らかにした。変動トルク下では、プーリ推力が足らず、間欠的に全滑りが生じ、結果として伝動効率も低下する。そこで、トルク変動に合わせてプーリ推力を変動すればCVTの効率が高まることを実証した。、

• Record URL:
  https://doi.org/10.11351/jsaeronbun.49.1230
• Record URL:
  http://scholar.google.com/scholar_lookup?title=Power%20Transmission%20of%20CVT%20Using%20aMetal%20V-belt%20under%20Fluctuating%20Torque&author=Y.%20Isozaki&author=K.%20Okubo&author=T.%20Fujii&author=K.%20Sakagami&author=T.%20Yagasaki&publication_year=2018
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Isozaki, Yusuke
  • Okubo, Kazuya
  • Fujii, Toru
  • Sakagami, Kyohei
  • Yagasaki, Toru
• Publication Date: 2018-11

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: pp 1230-1236
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 49
  • Issue Number: 6
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Continuously variable transmissions; Dynamic loads; Energy transfer; Slip (Fluid mechanics); Torque
• Uncontrolled Terms: Belt and pulley systems; Efficiency
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01689966
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Dec 27 2018 11:00AM