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:
Dec. 10, 2019
Filed:
May. 16, 2014
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Masahiro Toyohara, Hitachinaka, JP;
Osamu Mukaihara, Hitachinaka, JP;
Hideyuki Sakamoto, Hitachinaka, JP;
Takao Fukuda, Hitachinaka, JP;
Masayoshi Kawatsu, Hitachinaka, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
Provided is a control device for an internal combustion engine which can suppress a relative variation in the fuel injection amount for each cylinder. A drive pulse width to drive the fuel injection valve for injecting the fuel is calculated according to a driving state of the internal combustion engine, any one or both of a valve-opening response delay time and a valve-closing response delay time with respect to a drive pulse signal of the fuel injection valve for each fuel injection value are calculated, and the drive pulse width is corrected to make an injection amount of each fuel injection valve matched to a predetermined injection amount based on any one or both of the valve-opening response delay time and the valve-closing response delay time calculated for each fuel injection valve.