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:
Oct. 19, 2021
Filed:
Nov. 15, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Tomohiro Nakano, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A variable combustion cylinder ratio control method variably controls a combustion cylinder ratio of an engine during an intermittent deactivation operation, in which cylinder deactivation is intermittently performed. The method includes, when setting N to an integer greater than or equal to 1, repeatedly performing a cylinder deactivation in a pattern in which combustion is consecutively performed in N cylinders in the order of cylinders entering a combustion stroke, and then a subsequent cylinder is deactivated. The method further includes changing the combustion cylinder ratio by changing the pattern such that the value of N is changed by one at a time.