Patent ID: 11859584
Assignee: HITACHI ASTEMO, LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 10:
11. A solenoid valve control device that controls opening and closing of a fuel injection valve in an internal combustion engine system including a fuel pump, a fuel rail that accumulates fuel discharged by the fuel pump, and the fuel injection valve that is disposed on a downstream side of the fuel rail and injects fuel into a combustion chamber of an engine, the fuel pump including a plunger that increases or decreases a volume of a pressurizing chamber by moving up and down with rotation of a pump drive cam, a solenoid valve for sucking fuel into the pressurizing chamber, and a discharge valve for discharging fuel in the pressurizing chamber, the solenoid valve control device comprising
a control unit that determines whether or not closing of the fuel injection valve succeeds based on fuel pressure of the fuel rail, or calculates a discharge amount by closing the fuel injection valve based on the fuel pressure of the fuel rail.