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. 08, 2020
Filed:
Nov. 04, 2016
Mazda Motor Corporation, Hiroshima, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
Disclosed is a fuel injection control device for an engine equipped with a solenoid-type fuel injector. The fuel injection control device comprises: a voltage sensor SWconfigured to detect a voltage of a solenoid of the fuel injector; and a PCMconfigured to set a valve-open period of the fuel injector, based on a fuel injection amount according to an operation state of the engine, and control the fuel injectorbased on the valve-open period. The PCMis configured to perform correction for gradually shortening the set valve-open period, as the voltage (residual voltage) detected by the voltage sensor SWwhen opening the fuel injector becomes larger, and control the fuel injectorbased on the corrected valve-open period.