Control equipment for internal combustion engines

The present invention relates to control equipment for internal combustion engines, and more particularly to control equipment for internal combustion engines ideally suitable for application to fuel injection engines in which the fuel is injected directly into the cylinder. The piston is one whose...

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Bibliographic Details
Main Authors Tokuyasu, Noboru, Nogi, Toshiharu, Shiraishi, Takuya, Nakayama, Yoko, Sukegawa, Yoshihiro, Kihara, Yusuke
Format Patent
LanguageEnglish
Published 26.11.2002
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Summary:The present invention relates to control equipment for internal combustion engines, and more particularly to control equipment for internal combustion engines ideally suitable for application to fuel injection engines in which the fuel is injected directly into the cylinder. The piston is one whose top part has a flat shape. Fuel is injected directly inside the cylinder from the fuel injection valve . The tumble air flow control valve adjusts the strength of the tumble air flow. The injected fuel pressure control section of the control unit varies the injected fuel pressure in accordance with the rotational speed of the engine while maintaining constant the opening angle of the tumble air flow adjustment valve . The TCV opening angle control section varies the opening angle of the tumble air flow adjustment valve in accordance with the rotational speed of the engine while maintaining constant the injected fuel pressure. The control is made by switching between the injected fuel pressure control section and the TCV opening angle control section depending on the rotational speed of the engine.