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Development of New 1.0 L I3 Gasoline Direct Injection Turbocharged Downsizing Engine

Article of Honda R&D Technical Review Vol.29 No.1

Summary

A new 1.0 L inline 3-cylinder VTEC TURBO engine that achieves enhanced fuel economy and driving performance has been developed as part of the cluster of new-generation power train technologies known as EARTH DREAMS TECHNOLOGY, which realizes both environmental and driving performance.
This engine has the same combustion concept as the previously released 1.5 L and 2.0 L 4-cylinder VTEC TURBO engines, and also applies common technologies such as high-tumble-flow intake ports, multi-hole injectors, and valve timing control of both the intake and exhaust camshafts. In addition, technologies such as a variable displacement oil pump, timing belt in oil system, and narrow crankshaft have been applied to comprehensively reduce friction. A compact class vehicle with this engine installed achieved 26% better fuel economy in European driving mode compared to the previous engine, and a newly developed compact turbocharger helped improve driving performance with 20% higher low- and medium-speed torque. Furthermore, both vibration and noise were kept in competitive level.

Reference

(1) Wada, Y., Nakano, K., Mochizuki, K., Hata, R.: Development of a New 1.5L I4 Turbocharged Gasoline Direct Injection Engine, SAE Technical Paper 2016-01-1020, doi: 10.4271/2016-01-1020, (2016)
(2) Nakano, K., Wada, Y., Jono, M., Narihiro, S.: New In-Line 4-Cylinder Gasoline Direct Injection Turbocharged Downsizing Engine, Honda R&D Technical Review, Vol. 28, No. 1, p. 139-146
(3) Niizato, T., Yasui, Y., Urata, Y., Wada, Y., Jono, M., Nakano, K., Taguchi, M.: Honda’s new Turbo-GDI Engine Series for global application, 34.International Vienna Engine Symposium, (2016)
(4) Ernst, R., Friedfeldt, R., Lamb, S., Lloyd-Thomas, D., Phlips, P., Russell, R., Zenner, T.: The New 3 Cylinder 1.0L Gasoline Direct Injection Turbo Engine from Ford, 20. Aachen Colloquium Automobile and Engine Technology, (2011)
(5) Alt, M., Damen, M., Noe, A., Groeniger, J., Strehl, D., Wagner, J., O‘Daniel, G., Peralta, N.: The New Turbocharged Three-Cylinder Engine with Gasoline Direct Injection for Opel ADAM, 22. Colloquium Automobile and Engine Technology, (2013)

Author (organization or company)

Kazuki MAEYAMA(Automobile R&D Center)、Hirotaka KOMATSU(Automobile R&D Center)、Masaru ASARI(Automobile R&D Center)、Naoko MACHIDA(Automobile R&D Center)、Akira TERAO(Automobile R&D Center)、Yu YOSHIO(Automobile R&D Center)、Mitsuhiro SHIBATA(Automobile R&D Center)

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