DEVICE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE

• Main Author: SUGIHARA HIROYUKI
• Format: Patent
• Language: English
• Published: 29.07.2010
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; 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; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a device and a method for controlling an internal combustion engine which can accurately determine the misfire of the internal combustion engine based on the connected state of the internal combustion engine and a power transmission system. SOLUTION: A vehicle control system 1 corrects an output torque obtained from the rotating angular velocity of the power transmission system by an internal combustion engine inertia moment detection means, a power transmission system inertia moment estimation means, a connected state determination means, a power transmission system inertia moment correction means, and a misfire determination means based on the connected state of the internal combustion engine and the power transmission system, and performs the control for determining the misfire of the internal combustion engine from the result of the correction and the output torque obtained from the rotating angular velocity of a crankshaft 102, thereby enabling the determination of misfire reflecting the effect of the inertia moment of the power transmission system based on the control state of a lockup clutch 22. Consequently, the control system can accurately determine the misfire of the internal combustion engine based on the connected state of the internal combustion engine and the power transmission system. COPYRIGHT: (C)2010,JPO&INPIT