ENGINE SYSTEM, VEHICLE, METHOD OF CONTROLLING ENGINE SYSTEM, AND COMPUTER PROGRAM PRODUCT

An engine system includes an engine, a main combustion chamber formed by a cylinder head and a piston, an auxiliary chamber formed with a communicating hole communicating with the main combustion chamber, an injector configured to inject fuel into the main combustion chamber, an ignition plug provid...

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Bibliographische Detailangaben
Hauptverfasser: ONO, Ryohei, SUZUKI, Hirotaka, YAMASHITA, Hiroyuki, HARADA, Yuji, UCHIDA, Kenji, NAGATSU, Kazuhiro
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:An engine system includes an engine, a main combustion chamber formed by a cylinder head and a piston, an auxiliary chamber formed with a communicating hole communicating with the main combustion chamber, an injector configured to inject fuel into the main combustion chamber, an ignition plug provided to the auxiliary chamber and configured to ignite a mixture gas inside the auxiliary chamber, an accelerator opening sensor, and a control device. The control device controls the injector so that an air-fuel ratio of the mixture gas inside the auxiliary chamber becomes a first air-fuel ratio when an engine load range is a first range, and the air-fuel ratio of the mixture gas inside the auxiliary chamber becomes a second air-fuel ratio leaner than the first air-fuel ratio when the engine load range is a second range where the engine load is higher than in the first range.