ALEXANDRIA, Va., May 12 -- United States Patent no. 12,625,107, issued on May 12, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).
"CO 2 mass estimation system, exhaust gas composition ratio estimation method, and CO 2 mass estimation method" was invented by Yuichiro Kondo (Obu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A CO2 mass estimation system includes: an acquisition element acquiring detected values in accordance with concentrations of oxygen, H2O, and CO2 contained in an engine exhaust gas output from a gas sensor; a setting element setting an air-fuel ratio of a mixture; and a calculation element calculating the mass of CO2 contained in the exhaust gas, wherein the calculation element...