| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine, which can suppress occurrence of trouble such as cooling failure when the temperature of a refrigerant differs in a plurality of refrigerant passages in the internal combustion engine using a variable viscosity refrigerant as the refrigerant.SOLUTION: A control device (100) for an internal combustion engine includes a control unit executing the following flow volume reduction control in an internal combustion engine (5) that uses a variable viscosity refrigerant as a refrigerant, in which changes in the viscosity with respect to the temperature of the refrigerant can be changed by varying component ratios of the refrigerant. When a condition that the temperature differs among a plurality of refrigerant passages (70 to 78) is satisfied, the control unit specifies at least one high-temperature refrigerant passage that is a refrigerant passage at higher temperature than temperatures of the refrigerant in other refrigerant passages of the plurality of refrigerant passages, and the control unit reduces the flow volume of the refrigerant in the identified high-temperature refrigerant passage compared to a flow volume before the above condition is satisfied. |
