Anti-shudder mechanism of ATF additives (Part 2). Influence of boundary frictional property and contact area roughness

Japanese Journal of Tribology

Volumn 47, Issue 4, 2002, Pages 297-306

  Tohyama, Mamoru ^a   Ohmori, Toshihide ^a   Sanda, Shuzo ^a   Ueda, Fumio ^b  

^a Rd Management Section   (Japan)

^b TOYOTA MOTOR CORPORATION   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ADDITIVE; CLUTCH PLATE; CONTACT AREA; FRICTION; SOLID FILM LUBRICATION; SURFACE ROUGHNESS; TRANSMISSION OIL; VIBRATION;

EID: 0038682193     PISSN: 10457828     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (17)

1. Kano, Ito and Yoshizawa, "Slip Control of Torque Converter and Lock-Up Clutch," Automobile Engineering, 50, 9 (1996), p. 89 (in Japanese).
2. Kato, Akasaka and Shibayama, "Experimental Study on Mechanism of Lock-Up Shudder in Automatic Transmissions," Journal of the Japanese Society of Tribologists, 39, 12 (1994), p. 1067 (in Japanese).
3. H. Kurashina, "Demands for Slip L/U ATF Performance," Proc. Int. TVT Symp., Yokohama (1999), p. 34.
4. T. Kugimiya, J. Mitsui, N. Yoshimura, H, Kaneko, H. Akamatsu, F. Ueda, T. Nakada, and S. Akiyama, "Development of Automatic Transmission Fluid for Slip-Controlled Lock-up Clutch Systems," SAE Paper 952348 (1995).
5. Deshimaru, "ATF, Technological Trends in Belt CVT," JAST Tribology Forum '99 (1999), p. 23 (in Japanese).
6. Arai, "Present-Day State and Future Prospective of Automatic Transmission Fluids," Automobile Engineering 53, 5 (1999), p. 56 (in Japanese).
7. M. Tohyama, T. Ohmori, S. Sanda, and F. Ueda, "Anti-Shudder Mechanism of ATF Additives (Part 1): Formation of Contact Area Roughness," Journal of the Japanese Society of Tribologists (in print) (in Japanese).
8. S. Sanda, Y. Nagasawa, A. Suzuki, K. Hayashi, and H. Itoh, "Mechanism of Friction of Wet Clutch with Paper Based Facings, Part 1: Observation and Modeling of Facing Surface during Engagement," Proc. Int. Trib. Conf., Yokohama 1995 (1996), p. 1519.
9. Eguchi, Takei and Yamamoto, "Friction Characteristics of Wet Friction Materials for Clutches," Journal of the Japanese Society of Tribologists, 36, 7 (1991), p. 535 (in Japanese).
10. M. Tohyama, T. Ohmori, Y. Shimura, K. Akiyama, T. Ashida, and N. Kojima, "Mechanism of Friction Reduction with Organo-Molybdenum Type Additives," Proc. Int. Trib. Conf., Yokohama 1995 (1995), p. 739.
11. The Japanese Society of Lubrication Engineering, publishers, Revised Edition, Handbook on Lubrication, Yokendo (1987), p. 37 (in Japanese).
12. Kamada, Aragi, Yoshida, Wan, and Mukaida, "Effect of Absorption Properties of ATF Additives Used for Wet Type Friction Materials on Low Sliding Velocity Friction," Journal of the Japanese Society of Tribologists, 44, 3 (1999), p. 207 (in Japanese).
13. Ito and Shimaya, "Components of Wet Type Friction Materials and Absorption Properties of ATF Additives," NSK Technical Journal, 662 (1996), p. 38 (in Japanese).
14. Matsuoka and Muraki, "Study on Effects of Oiliness Agents on Friction Characteristics of Paper-Based Friction Materials under Low Sliding Velocity," Journal of the Japanese Society of Tribologists, 46, 8 (2001), p. 201 (in Japanese).
15. For example, Sakarai, Physical Chemistry of Lubrication, Koshobo (1978), p. 122 (in Japanese).
16. Masuko, Moriki and Okabe, "Study on Boundary Friction (Part 2): Lubricity of Polar Chemical Compounds and Analysis of Their Behavior," Junkatsu (Lubrication), 30, 6 (1985), p. 422 (in Japanese).
17. Kugimiya, "ATF Additives and Their Effects on μ-v Characteristics of Structural Components of Friction Materials," Journal of the Japanese Society of Tribologists, 45, 5 (2000), p. 387 (in Japanese).