Patent ID: 7805939
Filing Date: 2010-10-05
Classification: F02B,F02D,Y02T

Abstract:
1. A controller for an internal combustion engine with a supercharger, applied to an internal combustion engine having a supercharger for supercharging an intake air by an exhaust power and an auxiliary supercharging device provided upstream or downstream of the supercharger and operated on power other than exhaust as a power source, the controller for controlling an output torque of the internal combustion engine by adjusting volume of air taken into the internal combustion engine by an airflow rate adjusting means, the controller comprising: a target power calculating means that calculates a target power of the supercharger based on information of an intake airflow rate of the internal combustion engine; an actual power calculating means that calculates an actual power of the supercharger; an assist amount calculating means that calculates an assist amount of the auxiliary supercharging device based on a target power and an actual power of the supercharger, the assist amount corresponding to an insufficient amount of the actual power relative to the target power; an assist control means that controls the auxiliary supercharging device by the calculated assist amount; and a means that calculates an exhaust parameter of exhaust from the internal combustion engine by estimation or measurement, wherein the actual power calculating means calculates an actual power of the supercharger based on the exhaust parameter.