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:
Sep. 30, 2025
Filed:
Nov. 10, 2022
Hitachi Astemo, Ltd., Hitachinaka, JP;
Koichi Tsukio, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
Provided is an electronic control device that drives and controls a fuel injection valve, the electronic control device increasing a boost current of a booster circuit only in a scene where boosting energy needs to be increased by short-time boosting, and reducing the boost current of the booster circuit in other scenes. The electronic control device including; a booster circuit; a boost setting controller that holds boost control information of the booster circuit; a boost controller that controls an energizing current of the booster circuit based on a current setting value from the boost setting controller; and a fuel injection circuit that supplies current to a fuel injection valve using voltage generated by the booster circuit, in which the boost setting controller reduces a boost speed of the booster circuit when information on engine temperature is higher than a predetermined value.