Toyota Jidosha Kabushiki Kaisha

Tsubasa Sugano

Makoto Yamazaki

Yoshikazu Asami

Masashi Hakariya

Yuki Ikejiri

Yoshifumi Matsuda

Tomoyuki Tsuji

Yusuke Joh

Hisao Kiyono

Tatsuaki Arisawa

An upstream integrated value is an integrated value of a difference obtained by subtracting an upstream gas temperature at a starting point in time of integration from the upstream gas temperature after starting of the internal combustion engine. A downstream integrated value is an integrated value of a difference obtained by subtracting a downstream gas temperature at the starting point in time of the integration from the downstream gas temperature after the starting of the internal combustion engine. An anomaly diagnosing process obtains an anomaly determination result indicating that the exhaust purification device is in a removed state when a deviation between the upstream integrated value and the downstream integrated value is smaller than a reference level. The determination threshold is higher than a dew point.

Controller for internal combustion engine, control method for internal combustion engine, and memory medium

A combustion control part of a control device for an internal combustion engine configured to calculate a first vibration level of an engine body at a first judgment frequency band of a second overtone of a specific frequency band based on vibration acceleration detected by a vibration sensor and, when the first vibration level is less than a predetermined first reference vibration level set in advance according to the engine operating state, to correct one or both of a target injection amount and target injection timing so that the first vibration level becomes the first reference vibration level or more.

Internal combustion engine and control device for internal combustion engine

Growing community of inventors

Susono, Japan

Tsubasa Sugano