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:
Sep. 13, 2022
Filed:
Mar. 21, 2017
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;
Ryo Sase, Tokyo, JP;
Shintarou Noguchi, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara, JP;
Abstract
The present invention provides a device and method for detecting a misfire in an engine, the device being provided with: a rotation speed sensor () as a supercharger rotation speed measurement unit for measuring a rotation speed (Nt) of a supercharger (); a misfire index calculation unit () that calculates a misfire index (Yt) from a degree of change in the rotation speed (Nt) of the supercharger (), the rotation speed being measured by the rotation speed sensor (); and a misfire determination unit () that determines a misfire in an engine () when the misfire index (Yt) calculated by the misfire index calculation unit () exceeds a pre-set determination value (D).