| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust control device for a supercharged internal combustion engine not causing the deterioration of exhaust emission control performance even during the light load operation of the engine and suppressing the drop of an engine output due to the deterioration of supercharging efficiency. <P>SOLUTION: This device is provided with an exhaust passage 6 formed on the engine 1 and provided with a three-way catalyst device 11, a supercharger 15 driven and supercharging by an auxiliary motor 24 other than an exhaust turbine 21 provided in the exhaust passage 6, and an auxiliary motor control means 32 controlling the auxiliary motor 24 to increase the exhaust gas resistance of the exhaust passage 6 in a predetermined operation zone. <P>COPYRIGHT: (C)2007,JPO&INPIT |
