| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine reducing both heat generation amount and power consumption of a variable lift mechanism during fuel cut operation in the case of changing the maximum head of an opened intake valve by the variable lift mechanism. SOLUTION: In the internal combustion engine 3, an intake lift Liftin which is the maximum head of the opened intake valve 4 can continuously be changed by the variable lift mechanism 40 within a predetermined range (Liftin_min to Liftin_max), and when electric power supply to an electric motor 48 of the variable lift mechanism 40 is stopped, the intake lift Liftin is mechanically held at a predetermined value Liftin_ref by a lift holding mechanism 50. The control device 1 includes an ECU 2, and the ECU 2 determines whether it is in fuel cut operation or not (step 1). When it is in fuel cut operation, the electric power supply to the electric motor 48 is stopped (step 3). COPYRIGHT: (C)2010,JPO&INPIT
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