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:
Feb. 07, 2006
Filed:
Sep. 08, 2003
Nobuki Kobayashi, Toyota, JP;
Shizuo Sasaki, San Antonio, TX (US);
Taro Aoyama, Susono, JP;
Kouji Yoshizaki, Numazu, JP;
Hiroki Murata, Gotenba, JP;
Yoshiki Hashimoto, Suntou-gun, JP;
Kazuhisa Inagaki, Aichi-gun, JP;
Kiyomi Nakakita, Aichi-gun, JP;
Shoji Nakahara, Aichi-gun, JP;
Yoshihiro Hotta, Aichi-gun, JP;
Nobuki Kobayashi, Toyota, JP;
Shizuo Sasaki, San Antonio, TX (US);
Taro Aoyama, Susono, JP;
Kouji Yoshizaki, Numazu, JP;
Hiroki Murata, Gotenba, JP;
Yoshiki Hashimoto, Suntou-gun, JP;
Kazuhisa Inagaki, Aichi-gun, JP;
Kiyomi Nakakita, Aichi-gun, JP;
Shoji Nakahara, Aichi-gun, JP;
Yoshihiro Hotta, Aichi-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
Cylinders of a diesel engineare provided with cylinder pressure sensorstofor detecting combustion chamber pressures. An electronic control unit (ECU)of the engine selects optimum combustion parameters in accordance with a fuel injection mode of fuel injectorstoof the engine and a combustion mode determined by the amount of EGR gas supplied from the EGR valvefrom among a plurality of types of combustion parameters expressing the combustion state of the engine calculated based on the cylinder pressure sensor output and feedback controls the fuel injection amount and fuel injection timing so that the values of the combustion parameters match target values determined in accordance with the engine operating conditions. Due to this, the engine combustion state is controlled to the optimum state at all times regardless of the fuel injection mode or combustion mode.