ZÜNDANLAGE FÜR BRENNKRAFTMASCHINEN
    7.
    发明授权
    ZÜNDANLAGE FÜR BRENNKRAFTMASCHINEN 失效
    点火系统用于内燃机

    公开(公告)号:EP0805920B1

    公开(公告)日:1998-09-30

    申请号:EP95942025.8

    申请日:1995-12-21

    申请人: ROBERT BOSCH GMBH

    IPC分类号: F02P7/03 H03K3/57

    CPC分类号: F02P7/035 H03K3/57

    摘要: The invention concerns an ignition system for internal combustion engines with stationary high-voltage distribution and comprising at least one ignition coil (11). A controllable switch (12) is arranged in series with the primary winding (10) and can be controlled by a control unit (13). At least one high-voltage four-layer diode (HKD) comprising a plurality of four-layer diode chips is arranged in each secondary ignition branch between the high-voltage end of the secondary winding (14) and a spark plug (ZK1, ZK2, ... ZKn). A switch controlled by the control unit during the ignition coil charging process enables a conditioning current to pass through the high-voltage four-layer diode (HKD) and inundate the blocking area with charge carriers (38) in the high-voltage four-layer diode.

    CAPACITIVE DISCHARGE IGNITION SYSTEM WITH SELF-TRIGGERING SOLID STATE SWITCH
    8.
    发明授权
    CAPACITIVE DISCHARGE IGNITION SYSTEM WITH SELF-TRIGGERING SOLID STATE SWITCH 失效
    电容式点火系统具有自导开关

    公开(公告)号:EP0612376B1

    公开(公告)日:1996-11-20

    申请号:EP93921419.3

    申请日:1993-09-09

    摘要: A capacitive discharge ignition system is described that incorporates a two-terminal passive network for controlling the discharge of a capacitive energy storage device into an igniter plug, wherein the network comprises a solid-state switch for alternately providing high and low ohmic paths between the two terminals in order to selectively connect the capacitive energy storage device to the igniter plug. The passive network includes means responsive to a predetermined value of a voltage differential (ΔV) between the two terminals for effecting the switching of the path between the two terminals provided by the solid-state switch from a high ohmic value to a low ohmic value, thereby controllably discharging the capacitive energy storage device into the igniter plug. In the illustrated embodiment, the solid-state switch is a series of SCRs, each of whose anode is connected to the trigger input of the SCR by way of a breakover diode (BOD).