Patent ID: 7349791
Filing Date: 2008-03-25
Classification: F02D,F02M,Y02T

Abstract:
1. An internal combustion engine control apparatus having fuel cut-off means for cutting off fuel at the time of internal combustion engine deceleration and EGR control means for controlling the amount of exhaust gas recirculation, wherein the EGR control means is capable of varying the amount of exhaust gas recirculation into a combustion chamber while fuel is cut off at the time of deceleration, the internal combustion engine control apparatus comprising: forced recovery condition judgment means for judging according to an acceleration request detected during fuel cut-off at the time of deceleration that the condition for forced recovery from the fuel cut-off is established; degree-of-requested-acceleration judgment means for judging the degree of requested acceleration in accordance with the acceleration request; and combustibility judgment means, which, when the degree-of-requested-acceleration judgment means judges that the acceleration request is a request for acceleration into a low-load region, judges whether combustion can be resumed; wherein the EGR control means decreases the amount of exhaust gas recirculation when the condition for forced recovery is established, and includes fuel injection resumption means, which resumes fuel injection when the combustibility judgment means judges that combustion can be resumed.