| 摘要 |
<P>PROBLEM TO BE SOLVED: To properly suppress a torque level difference by carrying out post-injection at changing from a single turbo mode to a twin turbo mode. <P>SOLUTION: A controller for an internal combustion engine is suitably applied to a system equipped with a first supercharger and a second supercharger. A post-injection control means carries out post-injection in response to control for carrying out changing in changing from a mode of operating the first supercharger to a mode of operating the first supercharger and the second supercharger. By this, exhaust temperature is raised (that is to say, exhaust energy is increased) by the post-injection, and a coefficient of expansion can be improved. Therefore, dropping of the number of revolutions of a turbine of the first supercharger at changing can be recovered, and dropping of a boost pressure can be suppressed. Consequently, the torque level difference at changing can be properly suppressed. <P>COPYRIGHT: (C)2010,JPO&INPIT |
