CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

摘要

The objective of this invention is to provide a technology for improving exhaust emissions at engine startup without reducing the performance of the catalyst at engine startup. This invention is equipped with a catalyst which is provided in the exhaust passage of an internal combustion engine capable of using multiple types of fuels and which adsorbs and purifies the exhaust component discharged from the internal combustion engine. When there is a request to stop the internal combustion engine and, of the multiple fuel types, a first fuel the unburned component of which is easily adsorbed by the catalyst is being used, a switch is made from the first fuel to a second fuel, and running continues until the internal combustion engine stops.