| 摘要 |
<p>A fuel injection control system for a diesel engine (1) equipped with a catalyst (22) which is of a type causing a fall in NOx conversion efficiency while it is not warmed up, and which, on one hand, adsorbs NOx while exhaust gas has high oxygen concentration and, on the other hand, releases NOx while exhaust gas has low oxygen concentration so as thereby to deoxidize or reduce NOx for purifying the exhaust gas and a turbosupercharger (25) operative to supercharge intake air with exhaust gas, sprays a basic amount of fuel in compliance with demanded output torque of the diesel engine (1) by implementing split fuel injection at a point of time near top dead center of a compression stroke and increasing the amount of fuel, if necessary, in order to promote a rise in temperature of the catalyst (22) or to comply with engine acceleration without causing aggravation of fuel consumption and a sharp increase of smoke. <IMAGE></p> |
