The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 2020
Filed:
Aug. 23, 2018
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Ryo Kusakabe, Hitachinaka, JP;
Motoyuki Abe, Mito, JP;
Yoshihito Yasukawa, Hitachinaka, JP;
Noriyuki Maekawa, Kashiwa, JP;
Takuya Mayuzumi, Hitachinaka, JP;
Tohru Ishikawa, Kitaibaraki, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
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.