Engine control device

Abstract

To allow for an early fuel injection at an untoothed part immediately after a start of an engine.SOLUTION: An engine control device 270 reads an output signal of a crank angle sensor 240, which detects a toothed part of a crank signal plate 230 having a plurality of untoothed parts formed asymmetrically thereon and outputs pulsed crank signals, and an output signal of a cam angle sensor 260, which detects a toothed part of a cam signal plate 250 where the number of toothed parts for defining a reference position of an intake camshaft 170 is different from the number of other toothed parts and outputs pulsed cam signals. When the untoothed part is detected from an output cycle of the crank signals after a start of an engine, the engine control device 270 identifies a cylinder of the engine 100 according to the number of outputs of the cam signals in a prescribed section with reference to a detection position of the untoothed part as a start point.SELECTED DRAWING: Figure 1

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