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:
Jun. 02, 2020
Filed:
Oct. 18, 2017
Mazda Motor Corporation, Hiroshima, JP;
Keiichi Hiwatashi, Hiroshima, JP;
Hiroyuki Morioka, Hiroshima, JP;
Yuto Sakasegawa, Hiroshima, JP;
Kenichi Ogasawara, Hiroshima, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
An engine control system comprises: an enginecapable of switching between a reduced-cylinder operation mode in which combustion is stopped in a part of a plurality of cylindersand an all-cylinder operation mode in which combustion is performed in all the plurality of cylinders; and a PCMconfigured to stop fuel supply to the cylinderswhen a given fuel cut-off condition is satisfied. The PCMis operable, during a transition from a state in which the engineis operated in the reduced-cylinder operation mode to a state in which the fuel cut-off condition is satisfied, to stop the fuel supply to the cylindersat a timing earlier than that during a transition from a state in which the engineis operated in the all-cylinder operation mode to the state in which the fuel cut-off condition is satisfied.