Abstract

Fluctuation of crankshaft speed in a turbo charged direct-injection diesel (i-CTDi) engine significantly increases the load on the transmission chain.A simulation method which enables the load on the chain caused by these fluctuations to be predicted was therefore developed. All moving parts, centering on the crankshaft, have been connected in the simulation, which is therefore able to faithfully reproduce a working engine on computer. The model was simplified by focusing on the frequency response of each component when it was being constructed, enabling accuracy to be reconciled with a reduction in calculation time.This has enabled the load on the chain in an i-CTDi engine to be both accurately and rapidly predicted. The virtual engine contributed significantly to the optimization of the design of the transmission chain in an actual engine.

References

1. (1) Takagishi, H., Sugawara, H.: Prediction of Chain Load in Timing Chain System, Honda R&D Technical Review, Vol. 14, No. 1
2. (2) Sopouch, M., Hellinger, W., Priebsch, H.H.: Simulation of Engines Structure Borne Noise Excitation due to the Timing Chain Drive, SAE paper 2002-01-0451
3. (3) Hellinger, W., Priebsch, H.H., Rainer, G. Ph.: Auslegung von Ventiltrieben für Hochleistungsmotoren – Rechnerische und Experimentelle Verfahren. 16. Internationales Wiener Motorensymposium 1995 4

Author (organization or company)

• Hiroshi TAKAGISHI（Tochigi R&D Center）
• Kazuaki SHIMOYAMA（Tochigi R&D Center）
• Kenji FUJIKI（Tochigi R&D Center）
• Masaru ASARI（Tochigi R&D Center）
• Yasuhiro KAWAMURA（Tochigi R&D Center）
• Atsushi NAGAKUBO（Tochigi R&D Center）

Publication Information

Article of Honda R&D Technical Review Vol.16 No.1 (225 - 234)

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Citation Information