| 摘要 |
A system for controlling fuel injection for an internal combustion engine has a fuel injector provided for injecting fuel directly in a cylinder. A fuel injection quantity determined by engine operating conditions is compared with a smaller reference value corresponding to a stratified charge and with a larger reference value corresponding to a homogeneous charge. A combined mode signal is produced when the determined fuel quantity is between the smaller and larger reference values. A stratified charge is determined in a low and middle engine load range, and a homogeneous charge is determined in a heavy engine load range. In response to the combined mode signal, a combined mode charge is determined, where the fuel is injected in twice at a former injection timing and a latter injection timing in the compression stroke.
|
