Abstract

The world’s first engine with a torque converter has been developed for the paramount TRX650FA in Honda’s utility oriented ATVs (All Terrain Vehicle). A linear solenoid valve and a hydraulic clutch control the creep phenomenon at an idling peculiar to the torque converter. The start-ability is equal to a wet automatic centrifugal clutch for conventional ATVs. A pleasant running like automobiles was realized by employing electronically controlled three-speed automatic transmission. To assemble the transmission and the engine using an existing production line was enabled because the lubrication systems of both the transmission and the engine were designed in common. A substantial mass reduction was achieved by the optimizing design of each part.

References

1. (1) Saito, M.: Introduction of PGM-HMT System for ATV, Autumn Seminar 2001, Japan Fluid Power System Society, p. 43-50 (2001)
2. (2) Abe, H., Maruyama, T., Sakatou, M.: Development of Super Squared Torque Converter by Applying Three-Dimensional CFD, Honda R&D Technical Review, Vol. 13, No. 1, p. 75-80 (2001)
3. (3) Ohashi, T., Tanisawa, S., Asatsuki, S., Moriya, H., Mochizuki, T.: Development of One-Way Clutch-less 4-speed Automatic Transmission, Honda R&D Technical Review, Vol. 9, p. 61-69 (1997)
4. (4) Ota, A., Narita, S.: Utilization of Motor-Driven Gearshift System, SAE Paper 99PC-129 (1999)

Author (organization or company)

• Yoshiaki HORI（Asaka R&D Center）
• Seiji HAMAOKA（Asaka R&D Center）
• Hideyuki TAWARA（Asaka R&D Center）
• Takeshi NAKAZAWA（Asaka R&D Center）

Publication Information

Article of Honda R&D Technical Review Vol.15 No.1 (69 - 76)

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Citation Information