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. 03, 2013
Filed:
Mar. 24, 2009
Yusuke Hiratani, Fujisawa, JP;
Futoshi Nakano, Fujisawa, JP;
Yusuke Hiratani, Fujisawa, JP;
Futoshi Nakano, Fujisawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
Increase in combustion noise and deterioration of exhaust gas performance caused by inter-cylinder correction are prevented, and decrease in temperature rise performance of a diesel particulate removal device caused by inter-cylinder correction is prevented. A fuel injection control device of an engine comprises inter-cylinder correction amount calculation meansfor calculating, for each cylinder, an inter-cylinder correction amount for correcting by increasing/decreasing a fuel injection amount in each cylinder according to a difference in engine revolution speed between the cylinders, inter-cylinder correction amount division meansfor dividing the inter-cylinder correction amount into a first divided inter-cylinder correction amount for correcting by increasing/decreasing the basic injection amounts of main injection and sub-injection and a second divided inter-cylinder correction amount for correcting by increasing/decreasing only the basic injection amount of main injection, first correction meansfor distributing the first divided inter-cylinder correction amount to main injection and sub-injection according to the basic injection amount of main injection and sub-injection, and second correction meansfor adding the second divided inter-cylinder correction amount to the basic injection amount of main injection.