The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2006
Filed:
Apr. 06, 2004
Tohru Kitamura, Saitama, JP;
Tomio Kimura, Saitama, JP;
Shohei Okazaki, Saitama, JP;
Akira Kato, Saitama, JP;
Toshihiro Yamaki, Saitama, JP;
Katsura Okubo, Saitama, JP;
Moriyoshi Awasaka, Saitama, JP;
Junji Yasuda, Saitama, JP;
Yasuhiro Urata, Saitama, JP;
Takashi Kakinuma, Saitama, JP;
Yoshimasa Kaneko, Saitama, JP;
Tohru Kitamura, Saitama, JP;
Tomio Kimura, Saitama, JP;
Shohei Okazaki, Saitama, JP;
Akira Kato, Saitama, JP;
Toshihiro Yamaki, Saitama, JP;
Katsura Okubo, Saitama, JP;
Moriyoshi Awasaka, Saitama, JP;
Junji Yasuda, Saitama, JP;
Yasuhiro Urata, Saitama, JP;
Takashi Kakinuma, Saitama, JP;
Yoshimasa Kaneko, Saitama, JP;
Honda Motor Co. Ltd., Tokyo, JP;
Abstract
The present invention aims at expanding an operation range for allowing a compression ignition combustion operation. The present invention provides an internal combustion engine of a compression ignition type that is capable of operating with a compression ignition combustion scheme in a given operation range. The ECU of the internal combustion engine detects an operating condition of the internal combustion engine and determines, according to the detected operating condition, which mode is to be used operate the internal combustion engine, a 4-cycle compression ignition mode or a 2-cycle compression ignition mode. The ECU controls the internal compression engine to perform the compression ignition mode determined. According to the present invention, the compression ignition combustion operation is switched from 4-cycle to 2-cycle when the operating condition of the internal combustion engine is in such state that the 4-cycle compression ignition mode cannot be performed, fro example, when the exhaust temperature is low.