US Patent Issued to NISSAN MOTOR on Jan. 20 for "Control method and control device for internal combustion engine" (Japanese Inventor)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,330, issued on Jan. 20, was assigned to NISSAN MOTOR Co. LTD. (Yokohama, Japan).

"Control method and control device for internal combustion engine" was invented by Tamikazu Kimura (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An internal combustion engine (1) has a three-way catalyst (15). An engine controller (9) has an oxygen amount calculation unit (102) determining an amount of oxygen flowing into the three-way catalyst (15) per unit time and an oxygen storage amount calculation unit (108) estimating a current oxygen storage amount by integrating positive and negative oxygen amount. A reference oxygen storage capacity calculati...