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:
May. 17, 2005
Filed:
Jul. 07, 2004
Katsuaki Uchiyama, Yokohama, JP;
Tsutomu Kikuchi, Tokyo, JP;
Yuichi Iriya, Yokohama, JP;
Hitoshi Ishii, Yokosuka, JP;
Mitsuhiro Akagi, Yokohama, JP;
Masahiro Fukuzumi, Machida, JP;
Masahiko Yuya, Yokohama, JP;
Takao Maitani, Isehara, JP;
Masayuki Tomita, Yokohama, JP;
Katsuaki Uchiyama, Yokohama, JP;
Tsutomu Kikuchi, Tokyo, JP;
Yuichi Iriya, Yokohama, JP;
Hitoshi Ishii, Yokosuka, JP;
Mitsuhiro Akagi, Yokohama, JP;
Masahiro Fukuzumi, Machida, JP;
Masahiko Yuya, Yokohama, JP;
Takao Maitani, Isehara, JP;
Masayuki Tomita, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A start-up control device of a direct injection engine has a fuel injector () for injecting fuel into the engine; and a controller. The controller is programmed to determine the presence of a learned value for calculating on the basis thereof a fuel injection amount during start-up of the engine () by means of a stratified charge combustion operation; calculate the fuel injection amount on the basis of the learned value when the learned value is present, and control the fuel injector () to inject fuel in the compression stroke to start up the engine () by means of a stratified charge combustion operation; and control the fuel injector () to inject fuel in the intake stroke of the engine to start up the engine by means of a homogeneous combustion operation when the learned value is absent, and obtain and store the learned value during the homogeneous combustion operation of the engine.