INTERNAL COMBUSTION ENGINE CONTROLLER

• Main Authors: SUDA, SHOGO, HOSHI, KOICHI, TOMIMATSU, MAKOTO
• Format: Patent
• Language: English; French; German
• Published: 14.05.2014
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

An internal combustion engine is provided with a fuel injector 13 which injects fuel into an intake port 8 and an exhaust variable valve timing mechanism A which can change a valve timing of an exhaust valve 9. A control device executes early exhaust valve closing control which advances a closing timing of an exhaust valve when conditions for executing early exhaust valve closing control stand. Further, the control device is provided with a torque detecting means which detects an output torque which is output by an engine body 1. At the time of a deceleration operation of the internal combustion engine, even when the condition for executing early exhaust valve closing control stands, execution of the early exhaust valve closing control is prohibited when it is predicted that the output torque which is detected by the torque detecting means will become smaller than the limit torque. Due to this, due to execution of the early exhaust valve closing control, a large torque fluctuation is prevented from occurring at the time of a deceleration operation of the internal combustion engine etc.