| 摘要 |
A control apparatus for a diesel-type internal combustion engine comprising a fuel injection valve and a fuel supply unit for supplying the fuel to the fuel injection valve under a target fuel supply pressure is disclosed. The fuel injection valve can inject the fuel in the single-pilot injection mode in which one pilot injection is conducted in addition to the main injection at about the top dead center in compression stroke and in the multi-pilot injection mode in which several pilot injections are conducted in addition to the main injection. In the case where the fuel is injected in single-pilot injection mode, the target fuel supply pressure is equal to the reference target fuel supply pressure set in accordance with at least the fuel injection amount. In the case where the fuel is injected in multi-pilot injection mode, on the other hand, the target fuel supply pressure is higher than the reference target fuel supply pressure. As a result, the smoke generation is suppressed while maintaining a small combustion noise. |
