| 摘要 |
An engine control device executes a mechanism of controlling a fuel system during idling including the step of detecting an engine speed NE and an engine load, the step of determining whether fuel can be injected at normal feed pressure from an in-cylinder injector during idling, the step of detecting or estimating a fuel temperature T in a high-pressure delivery pipe, the step of stopping the high-pressure fuel pump and injecting fuel from the in-cylinder injector at the normal feed pressure when the fuel temperature T is not greater than T( 0 ), the step of stopping the high-pressure fuel pump and injecting fuel at the pressure greater than the normal feed pressure when the fuel temperature T is greater than T( 0 ) and not greater than T( 1 ), and the step of driving the high-pressure fuel pump to inject the fuel at high pressure when the fuel temperature T is greater than T( 1 ). |
