Patent ID: 8612123

Claim:
An internal combustion engine control device that controls an opening/closing timing of an exhaust valve in an internal combustion engine, comprising: a variable valve mechanism of the exhaust valve, in which an initial state is established when the opening/closing timing of the exhaust valve is in a most advanced state in the variable angle of the phase angle; a sensor for detecting whether the internal combustion engine is in a cold state or a warm state; a sensor for detecting whether or not the variable valve mechanism is in the initial state; a sensor for detecting whether or not a stop request has been issued in relation to the internal combustion engine; and a programmable controller programmed to: control the variable valve mechanism to the initial state when the stop request is issued in the cold state; determine whether or not the variable valve mechanism is in the initial state; and stop the internal combustion engine only when the variable valve mechanism is determined to be in the initial state.