Invention Grant
- Patent Title: Fuel injection control device
-
Application No.: US16101688Application Date: 2018-08-13
-
Publication No.: US11131264B2Publication Date: 2021-09-28
- Inventor: Masahiro Watanabe , Daiji Ueda , Hiroki Tanada
- Applicant: DENSO CORPORATION
- Applicant Address: JP Kariya
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya
- Agency: Nixon & Vanderhye P.C.
- Priority: JPJP2017-160363 20170823
- Main IPC: F02D41/00
- IPC: F02D41/00 ; F02D41/20 ; F02M51/06 ; F02M47/02

Abstract:
A fuel injection control device has a valve opening control portion which opens a control valve by electrically charging a piezoelectric element, and a valve closing portion which closes the control valve. The valve opening control portion includes a first rising control portion, a pause control portion and a second control portion. The first rising control portion increases a charge amount of the piezoelectric element during a first rising period. The pause control portion pauses an increase in the charge amount of the piezoelectric element during a pause period after the first rising period. The second rising control portion increases the charging amount of the piezoelectric elements again during a second rising period after the pause period. The pause period includes a period of immediately before the control valve is opened.
Public/Granted literature
- US20190063358A1 FUEL INJECTION CONTROL DEVICE Public/Granted day:2019-02-28
Information query