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. 21, 2025
Filed:
Jun. 29, 2023
Applicant:
Nissan Motor Co., Ltd., Yokohama, JP;
Inventors:
Satoshi Nakazawa, Yokohama, JP;
Isei Matsuzaki, Yokohama, JP;
Assignee:
NISSAN MOTOR CO., LTD., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G07C 5/08 (2006.01);
U.S. Cl.
CPC ...
G07C 5/0808 (2013.01);
Abstract
An engine diagnosis method includes: a step of calculating a corrected command torque Tby correcting a command torque Tof an enginewith a correction amount according to a response characteristic of an engine torque T actually output with respect to the command torque T; and a step of diagnosing a state of the engine torque T by comparing a diagnostic torque Tdefined based on the corrected command torque Tand an estimated torque T. Particularly, in this engine diagnosis method, the correction amount is adjusted with reference to an operating state of the engine