US Patent Issued to TOYOTA JIDOSHA on April 14 for "Anomaly determination device for internal combustion engine" (Japanese Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,304, issued on April 14, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Anomaly determination device for internal combustion engine" was invented by Yoshitaka Nakamura (Nagoya, Japan) and Kinji Morihiro (Gifu-ken, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ECU executes a fuel cut-off time ignition process that causes the ignition device to generate a spark discharge during a fuel cut-off for temporarily stopping fuel injection of the fuel injection valve. The ECU determines that the fuel injection valve is stuck open when a rotation fluctuation amount of an internal combustion engine during execution of the fuel cut-off time ign...