| 摘要 |
PROBLEM TO BE SOLVED: To efficiently increase a fuel temperature while suppressing a decline in fuel economy of an engine in an engine control unit.SOLUTION: A fuel circulation passage 20 of an engine 10 includes: a supply passage for supplying fuel from a fuel tank 15 through a fuel filter 16 to fuel injection devices 13, 14; and a return passage 19 for returning fuel from the fuel injection devices 13, 14 to the fuel tank 15. An engine control unit includes: a first acquisition section 2 that acquires a fuel correlation temperature correlated with a fuel temperature Tof the engine 10; a second acquisition section 5 that acquires an intake correlation temperature correlated with an intake temperature Tof the engine 10; and a control section 7 for controlling idling speed of the engine 10 on the basis of the fuel correlation temperature and the intake correlation temperature.SELECTED DRAWING: Figure 1 |
