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US 2018/0363608 A1Published application
Fuel Injection Device
AssigneeHitachi Automotive Systems, Ltd.
InventorsRyo KUSAKABE, Motoyuki ABE, Yoshihito YASUKAWA, Noriyuki MAEKAWA, Takuya MAYUZUMI, Tohru ISHIKAWA
Life of this patent
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Abstract
A drive unit of a fuel injection device includes a driver circuit. The driver circuit opens and closes a valve element of the fuel injection device by supplying a drive current to the fuel injection device. The driver circuit supplies the drive current to open the valve element and sets the drive current to zero in an intermediate lift area. The intermediate lift area is an area is which a lift amount of the valve element is smaller than a maximum target lift amount.
Claims7
A drive unit of a fuel injection device, comprising:
- a driver circuit which opens and closes a valve element of the fuel injection device by supplying a drive current to the fuel injection device,
- wherein the driver circuit supplies the drive current to open the valve element and sets the drive current to zero in an intermediate lift area in which a lift amount of the valve element is smaller than a maximum target lift amount.
Dependencies are inferred from the claim text.