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:
Mar. 03, 1998
Filed:
Sep. 26, 1996
Yoshiya Takano, Hitachinaka, JP;
Mamoru Fujieda, Tomobe-machi, JP;
Kousaku Shimada, Hitachinaka, JP;
Hitachi, Ltd., , JP;
Abstract
A target torque map is determined by an engine rotation number and an acceleration pedal opening degree. Plural control constant groups are provided to correspond the respective target torque map. A fuel precedent control is carried out by the plural constant control groups. By detecting an engine combustion condition, under a worse combustion condition a transfer to a higher torque side is carried out with a time function according to a complementary control of the control constant group. In a direct injection system engine, a controlling apparatus in which a stratified combustion and a homogeneous stoichiometric combustion are easily and stably.