Invention Grant
- Patent Title: Fuel injection control device and fuel injection control method
-
Application No.: US16769649Application Date: 2019-02-01
-
Publication No.: US11236697B2Publication Date: 2022-02-01
- Inventor: Fumihiro Itaba , Osamu Mukaihara , Akira Iizuka
- Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Applicant Address: JP Hitachinaka
- Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Current Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Current Assignee Address: JP Hitachinaka
- Agency: Volpe Koenig
- Priority: JPJP2018-032054 20180226
- International Application: PCT/JP2019/003565 WO 20190201
- International Announcement: WO2019/163477 WO 20190829
- Main IPC: F02D41/24
- IPC: F02D41/24 ; F02D41/40

Abstract:
The present invention provides a high-efficiency and highly-reliable fuel injection control device that controls a fuel injection valve of an internal combustion engine and can perform injection amount control in accordance with a deterioration degree of the fuel injection valve. A fuel injection control device controlling a fuel injection valve of an internal combustion engine includes a deterioration determination unit that determines a deterioration state of the fuel injection valve, an injection amount learning unit that learns the injection amount of the fuel injection valve, and a learning frequency change unit that changes the learning frequency of the injection amount learning unit in accordance with the deterioration state of the fuel injection valve.
Public/Granted literature
- US20210180534A1 FUEL INJECTION CONTROL DEVICE AND FUEL INJECTION CONTROL METHOD Public/Granted day:2021-06-17
Information query