Patent ID: 7721534
Filing Date: 2010-05-25
Classification: F01N,F02D

Abstract:
1. A control method of an exhaust gas purification system, in an internal combustion engine mounted on a vehicle provided with a continuous regeneration-type diesel particulate filter device and an exhaust throttle valve in an exhaust gas passage thereof, composed to comprise a diesel particulate filter control means having a regeneration timing judgment means for judging the regeneration start timing of said continuous regeneration-type diesel particulate filter device and a regeneration means for regenerating the continuous regeneration-type diesel particulate filter device by forcibly burning collected particulate matters by raising the exhaust gas temperature; wherein the regeneration control is suspended, a multi injection control is performed, and the exhaust throttle valve is closed, when detecting a stop condition of the vehicle during the regeneration control of the continuous regeneration-type diesel particulate filter device by the regeneration means.