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:
Aug. 31, 2021
Filed:
May. 08, 2018
Applicant:
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Inventor:
Koichi Tsukio, Hitachinaka, JP;
Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/20 (2006.01); F02M 51/06 (2006.01);
U.S. Cl.
CPC ...
F02D 41/20 (2013.01); F02M 51/06 (2013.01); F02D 2041/2003 (2013.01); F02D 2041/2051 (2013.01);
Abstract
Provided is an electronic control device capable of always achieving a desired injector injection amount by preventing a change in injector opening time regardless of a change (a decrease) of a power supply voltage for opening a valve of an injector. A precharge current amount at the time of precharge control is changed in a stepwise manner based on a voltage of the injector valve open power supply deviceat the time of the precharge control.