| 摘要 |
PROBLEM TO BE SOLVED: To control for optimal air fuel ratio by reliably judging acceleration condition without accompanying excessive rise of cost in fuel injection control method for an engine. SOLUTION: In the fuel injection control method for the engine in which an electronic control nit 10 detects combustion cycle and continuously detects intake pipe pressure and calculates pressure integration value of one combustion cycle, and judges that the engine 2 is under an acceleration condition and increases injection fuel when pressure difference calculated by comparison between the pressure integration value and pressure integration value in a previous combustion cycle gets to a predetermined acceleration criterion value or greater, the electronic control unit 10 judges that the engine is under an acceleration condition at timing H when difference between pressure integration value and atmospheric pressure gets to a reference criterion value C or less and pressure difference integration value E integrating each pressure difference in integration period F gets to criterion value G or greater even if pressure difference D is less than acceleration criterion value. COPYRIGHT: (C)2007,JPO&INPIT |
