| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic control device that can attain an inexpensive general-purpose engine capable of improving fuel economy and reducing a regulated substance amount in exhaust gas, while performing feedback control in which oxygen concentration in exhaust gas is reflected with a simple structure.SOLUTION: In an electronic control device 100, a fuel injection amount calculation unit 108 calculates a fuel injection amount by correcting a basic fuel injection amount regulated according to an engine rotational frequency, for a heating operation period after an engine 1 is completely exploded in current start operation, with a storage value of an oxygen concentration feedback coefficient calculated according to oxygen concentration detected by an oxygen concentration sensor 30 in previous start operation and updated and stored to a non-volatile memory 101.SELECTED DRAWING: Figure 1 |
