| 摘要 |
PROBLEM TO BE SOLVED: To provide a misfire detection device capable of improving misfire determination precision by precisely defining torque generated by an internal combustion engine. SOLUTION: This device is provided with a generated torque estimation means 18B estimating torque generated by the internal combustion engine 1, a load fluctuation eliminating means 18E establishing generated torque estimated by the generated torque estimation means 18B when the internal combustion engine 1 is under a predetermined condition as offset torque and correcting generated torque estimated by the generated torque estimation means 18B by using the offset torque, a predicted torque estimation means 18D estimating predicted torque which the internal combustion engine 1 should generate according to an operation condition of the internal combustion engine 1, and a misfire determination means 18A determining existence of misfire by comparing generated torque corrected by the load fluctuation eliminating means 18E and predicted torque estimated by the predicted torque estimation means 18D. COPYRIGHT: (C)2006,JPO&NCIPI
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