Invention Grant
- Patent Title: Method and apparatus for operating an injection valve
- Patent Title (中): 用于操作喷射阀的方法和装置
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Application No.: US12161501Application Date: 2007-01-02
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Publication No.: US08128004B2Publication Date: 2012-03-06
- Inventor: Achim Koch
- Applicant: Achim Koch
- Applicant Address: DE Hannover
- Assignee: Continental Automotive GmbH
- Current Assignee: Continental Automotive GmbH
- Current Assignee Address: DE Hannover
- Agency: King & Spalding L.L.P.
- Priority: DE102006002893 20060120
- International Application: PCT/EP2007/050002 WO 20070102
- International Announcement: WO2007/085500 WO 20070802
- Main IPC: F02D1/06
- IPC: F02D1/06 ; B05B1/30 ; F02M51/00 ; F16K31/02

Abstract:
In order to operate an injection valve, a freewheeling operating state is controlled as the nozzle needle moves to its closing position, and a current through the coil is detected as a freewheeling current during freewheeling. As the nozzle needle moves to its closing position, a braking current pulse (I_BR) is generated on the basis of a time derivative (DI_DT_FW) of the freewheeling current and is impressed on the coil.
Public/Granted literature
- US20100224809A1 Method and Apparatus for Operating an Injection Valve Public/Granted day:2010-09-09
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