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:
Apr. 14, 2026
Filed:
Nov. 14, 2024
Mazda Motor Corporation, Hiroshima, JP;
Masataka Sumita, Aki-gun, JP;
Kouichi Miyamoto, Aki-gun, JP;
Kouji Shishime, Aki-gun, JP;
Kenichi Ogasawara, Aki-gun, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
A control system for an engine includes: a valve that adjusts an intake air filling amount for a cylinder according to an operation amount of an accelerator pedal; a sensor that outputs a measurement signal related to a temperature of an upper end of a cylinder head having an intake port and an exhaust port communicating with the cylinder; and a control circuit that sets an upper limit value of the intake air filling amount to be smaller as the temperature of the upper end of the cylinder head is reduced base on the measurement signal at the start of an engine, and outputs, to the valve, a control signal corresponding to the operation amount of the accelerator pedal within a range where the intake air filling amount does not exceed the upper limit value.