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:
Nov. 08, 2005
Filed:
Sep. 08, 2003
Eiji Nakai, Hiroshima, JP;
Naoki Okada, Hiroshima, JP;
Tsunehiro Sato, Hiroshima, JP;
Yoshiyuki Matsumoto, Hiroshima, JP;
Masami Nakao, Hiroshima, JP;
Masanori Sahara, Hiroshima, JP;
Kouji Habu, Hiroshima, JP;
Hiromu Sugano, Hiroshima, JP;
Masaru Yamamoto, Hiroshima, JP;
Tunehiro Mori, Hiroshima, JP;
Eiji Nakai, Hiroshima, JP;
Naoki Okada, Hiroshima, JP;
Tsunehiro Sato, Hiroshima, JP;
Yoshiyuki Matsumoto, Hiroshima, JP;
Masami Nakao, Hiroshima, JP;
Masanori Sahara, Hiroshima, JP;
Kouji Habu, Hiroshima, JP;
Hiromu Sugano, Hiroshima, JP;
Masaru Yamamoto, Hiroshima, JP;
Tunehiro Mori, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A diesel engine control system and control method capable of conducting accurate fuel injection unaffected by variations in injector performance caused by differences among individual injectors or change with aging. The diesel engine control system includes an injector for directly injecting fuel into a combustion chamber of a diesel engine, injection quantity controller for controlling fuel injection quantity by varying a period of electric current supply to the injector, estimator for estimating that an electric current supply period when a prescribed (stable) combustion state is obtained is the current supply period for injecting the amount of fuel required for the prescribed combustion state, and control data correcting device for correcting control data of the injection quantity controller based on the estimated current supply period.