Internal combustion engine fuel injection apparatus and control method thereof
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTomojiro Sugimoto, Keiso Takeda, Susumu Kojima
Life of this patent
Estimating the term…
Loading patent…
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTomojiro Sugimoto, Keiso Takeda, Susumu Kojima
Estimating the term…
A fuel injection apparatus of an internal combustion engine includes a valve body movably disposed for back and forth movement in a fuel passage to open and close a fuel injection hole of the fuel injection apparatus. An armature is attached to the valve body. A valve-opening solenoid coil drives the armature in a valve-opening direction. A valve-closing solenoid coil drives the armature in a valve-closing direction. A controller that sets an overlap time, which is a time by which starting of electrifying of the valve-closing solenoid coil precedes stopping of electrifying of the valve-opening solenoid coil, controls the solenoid coils in accordance with a fuel pressure supplied to the fuel injection apparatus such that a valve-closing force on the valve body does not exceed an open valve holding force on the valve body prior to the time when stopping of the electrifying of the valve-opening solenoid coil occurs.
A fuel injection apparatus of an internal combustion engine, comprising:
A control method of a fuel injection apparatus of an internal combustion engine, the fuel injection apparatus including a valve body movably disposed for back and forth movement in a fuel passage to open and close a fuel injection hole of the fuel injection apparatus, an armature attached to the valve body, a valve-opening solenoid coil to drive the armature in a valve-opening direction, and a valve-closing solenoid coil to drive the armature in a valve-closing direction, the control method comprising:
Dependencies are inferred from the claim text.