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:
Jan. 06, 2026
Filed:
Jun. 24, 2022
Mitsubishi Electric Corporation, Tokyo, JP;
Takeshi Kitao, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
To provide a controller for an internal combustion engine which can correct the detection error of the crank angle with good accuracy. A controller for an internal combustion engine corrects an angle interval or a time interval of an angle section by a correction value; estimates a shaft torque of a crankshaft using the physical model equation of a crank mechanism based on a detection value of a gas pressure in an intake pipe and a detected angle; calculates an ideal interval angular speed based on an estimation value of the shaft torque; and changes the correction value so that the detection section angular speed after correction approaches the ideal interval angular speed.