US Patent Issued to Hitachi Astemo on July 29 for "Control device for internal combustion engine" (Japanese Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,041, issued on July 29, was assigned to Hitachi Astemo Ltd. (Hitachinaka, Japan).

"Control device for internal combustion engine" was invented by Ryutaro Koiwai (Hitachinaka, Japan) and Osamu Mukaihara (Hitachinaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A processor (CPU 40e) of a control device (ECU 0) for an internal combustion engine identifies a first throttle valve opening degree ThetaA and a second throttle valve opening degree ThetaB at which a change rate (differential value) of an index (a deposit thickness, a decrease rate of an effective opening area, a flow rate decrease rate, and the like) correlated with a decrease rate o...