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Development of Electronically Controlled Multi-purpose Engine iGX440

Article of Honda R&D Technical Review Vol.17 No.2

Summary

Honda’s iGX440 general purpose engine utilizes electronic control technology to increase ease of use with high fuel economy and low noise performance.
The engine control system employs an electronic control unit (ECU) enabling more precise engine speed control in response to the numerous different operational requirements of a general purpose engine. This has resulted in an engine displaying power characteristics and operational performance meeting the requirements of users in a variety of different applications.
To increase the environmental friendliness of the engine, exhaust emissions have been reduced below regulation levels and fuel economy has been increased. In addition, the noise level of the engine has been reduced to meet Stage 2 requirements of the EU Directive on Noise Emission by Outdoor Equipment. This has been achieved mainly by reducing the noise generated by the mechanical system.
A precoated steel sheet fuel tank, a cold-forged camshaft, and a thermoplastic resin molded ECU have also been employed in the new engine.

Reference

(1) Fukushima, T., Matsuda, H., Shinogi, Y., Taniguchi, Y.: Governor System for General Purpose Engine Using Adaptive Control Theory, Honda R&D Technical Review, Vol. 17, No. 2, p. 58-64 (2005)
(2) Kimata, R., Maekawa, Y., Kuwasako, S., Tamechika, T.: Application of Thermoplastic Resin Molding to Control Unit of General Purpose Engine, Honda R&D Technical Review, Vol. 17, No. 2, p. 52-57 (2005)

Author (organization or company)

Keita ITO(Asakahigashi R&D Center)、Souhei HONDA(Asakahigashi R&D Center)、Teruyuki SAITO(Asakahigashi R&D Center)、Mashu KURATA(Asakahigashi R&D Center)、Gaku NAOE(Asakahigashi R&D Center)

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