| 摘要 |
By means of the present invention it is possible to set a target value for the engine oil temperature appropriately in an engine that uses gasoline as a fuel, even when the fuel does not have a single boiling point because the gasoline is a mixed composition, or when the fuel property changes (for example, when the vaporization property changes due to deterioration). In other words, the present invention provides an engine control device that prevents excessive heating or insufficient heating by changing the oil temperature to the high side in a condition wherein the fuel being used does not easily vaporize, and changing the oil temperature to the low side in a condition wherein the fuel being used easily vaporizes. This engine control device has: an oil temperature control means that controls the temperature of oil lubricating the interior of the engine; a fuel supply device that supplies fuel to the engine; and a means for detecting the property of the fuel. The temperature of the oil is controlled on the basis of a signal from the means for detecting the property of the fuel. |
