COMBUSTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

PURPOSE:To prevent air-fuel ratio from its disorder by variably setting a degree of increase and decrease in start/end time of correcting a fuel supply amount and ignition timing relating to recirculation of exhaust gas in accordance with an engine load change amount of throttle opening or the like....

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Bibliographische Detailangaben
1. Verfasser: HEIKO KEIZO
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To prevent air-fuel ratio from its disorder by variably setting a degree of increase and decrease in start/end time of correcting a fuel supply amount and ignition timing relating to recirculation of exhaust gas in accordance with an engine load change amount of throttle opening or the like. CONSTITUTION:In case of performing exhaust gas recirculation(EGR) by switching a negative pressure selector valve 45 and opening an SGR control valve 20, a control device 50 corrects a fuel supply amount or ignition timing. A degree of increase or decrease in start or end time of this correction is variably set in accordance with a change amount of engine load of throttle opening or the like detected by a throttle opening sensor 53. Thus in the time of performing the EGR, the fuel supply amount or the ignition timing adequately performs its correction being suited for the transient response characteristic in the start/end time of the correction, and avoiding the disorder of air-fuel ratio of a mixture and the generation of knocking, the improvement of drivability and purifying performance of exhaust gas can be contrived.