Internal combustion engine control device

Abstract

The invention aims at providing an internal combustion engine control device 1 which can make suppression of a rise in the temperature of an engine control ECU 2, and fuel cut control of an engine compatible with each other. An internal combustion engine control device 1, which controls an engine having a plurality of cylinders having intake valves and exhaust valves, includes intake valve solenoids 8 to 11 and exhaust valve solenoids 12 to 15 which switch the operating state of valve elements of the intake valves or exhaust valves to a drive state and a closed valve holding state; an engine control ECU 2 which controls the intake valve solenoids 8 to 11 and the exhaust valve solenoids 12 to 15; an ECU temperature sensor 6 which detects the temperature of the engine control ECU 2; and a switching number setting unit 32 which sets the number of valve elements whose operating state is switched at one time by the intake valve solenoids 8 to 11 and the exhaust valve solenoids 12 to 15 to be smaller, as the temperature detected by the ECU temperature sensor 6 is higher.

Dependencies are inferred from the claim text.