发明公开
EP2492479A1 Drive device for electromagnetic fuel injection valve
有权
AntifbsvorrichtungfürelektromagnetischeKraftstoffeinspritzdüse
- 专利标题: Drive device for electromagnetic fuel injection valve
- 专利标题(中): AntifbsvorrichtungfürelektromagnetischeKraftstoffeinspritzdüse
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申请号: EP12156796.0申请日: 2012-02-24
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公开(公告)号: EP2492479A1公开(公告)日: 2012-08-29
- 发明人: Kusakabe, Ryo , Abe, Motoyuki , Ehara, Hideharu , Ishikawa, Tohru , Maekawa, Noriyuki , Mayuzumi, Takuya
- 申请人: Hitachi Automotive Systems, Ltd.
- 申请人地址: 2520 Takaba Hitachinaka-shi, Ibaraki 312-8503 JP
- 专利权人: Hitachi Automotive Systems, Ltd.
- 当前专利权人: Hitachi Automotive Systems, Ltd.
- 当前专利权人地址: 2520 Takaba Hitachinaka-shi, Ibaraki 312-8503 JP
- 代理机构: MERH-IP Matias Erny Reichl Hoffmann
- 优先权: JP2011039180 20110225
- 主分类号: F02D41/20
- IPC分类号: F02D41/20 ; F02D41/40
摘要:
The drive device is configured to, during a time interval between an earlier fuel injection (first fuel injection) and a later fuel injection (second fuel injection), supply an electromagnetic coil with an intermediate current at a voltage with a level of not opening the valve. Further, the drive device sets a voltage application for supplying the intermediate current to initiate before a valve closing in the earlier fuel injection and terminate before half a period of time between a first instant when the valve is closed in the earlier fuel injection and a second instant when a supply of a drive current for opening the valve is initiated in the later fuel injection.
公开/授权文献
- EP2492479B1 Drive device for electromagnetic fuel injection valve 公开/授权日:2014-07-30
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