发明授权
- 专利标题: Drive device for electromagnetic fuel injection valve
- 专利标题(中): 电磁燃油喷射阀驱动装置
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申请号: US13403506申请日: 2012-02-23
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公开(公告)号: US08960157B2公开(公告)日: 2015-02-24
- 发明人: Ryo Kusakabe , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Noriyuki Maekawa , Takuya Mayuzumi
- 申请人: Ryo Kusakabe , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Noriyuki Maekawa , Takuya Mayuzumi
- 申请人地址: JP Hitachinaka-shi
- 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: JP Hitachinaka-shi
- 代理机构: Crowell & Moring LLP
- 优先权: JP2011-039180 20110225
- 主分类号: F02D41/02
- IPC分类号: F02D41/02 ; F02M51/06 ; 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
- US20120216783A1 Drive Device for Electromagnetic Fuel Injection Valve 公开/授权日:2012-08-30