Invention Grant
- Patent Title: Fuel injection device for internal combustion engine
- Patent Title (中): 内燃机燃油喷射装置
-
Application No.: US12708155Application Date: 2010-02-18
-
Publication No.: US08170775B2Publication Date: 2012-05-01
- Inventor: Yasuyoshi Hori
- Applicant: Yasuyoshi Hori
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2009-054641 20090309
- Main IPC: F02D41/22
- IPC: F02D41/22

Abstract:
The device including: a fuel correction value calculating unit for calculating a correction value for a fuel injection quantity so that an actual air-fuel ratio becomes equal to a target air-fuel ratio; a fuel switching detecting unit for detecting that fuel switching has occurred; a fuel property estimating unit for setting a period, in which there is a possibility that a fuel property changes, as a property change period when the fuel switching is detected to calculate a fuel property correction value corresponding to another correction value for the fuel injection quantity based on the correction value within the property change period; and a property change judging unit for judging whether or not a change in the correction value is due to the change in the fuel property in a case where the correction value becomes out of a predetermined range even though the property change period is not set.
Public/Granted literature
- US20100224175A1 FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2010-09-09
Information query