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    • 4. 发明授权
    • System for controlling ignition energy of an internal combustion engine
    • 用于控制内燃机的点火能量的系统
    • US6131555A
    • 2000-10-17
    • US328551
    • 1999-06-09
    • Luigi P. TozziStephen GoldschmidtDavid A. EverettBryan S. Gatewood
    • Luigi P. TozziStephen GoldschmidtDavid A. EverettBryan S. Gatewood
    • F02P3/08F02P3/05F02P9/00F02P15/00F02P17/00F02P3/04
    • F02P3/053F02P9/007
    • A system for controlling ignition energy of an internal combustion engine includes an ignition coil having a primary coil and a secondary coil coupled to first and second electrodes of an ignition plug defining a spark gap therebetween, wherein the primary coil is operable to induce a spark voltage across the secondary coil and across the spark gap. The secondary coil is responsive to the spark voltage to produce a discharge current across the spark gap of the ignition plug. In accordance with one aspect of the invention, means are provided for controllably shunting the primary coil to thereby control the duration of discharge current across the spark gap of the ignition plug. In accordance with another aspect of the present invention, means are further provided for drawing discharge current away from the ignition plug to thereby limit the magnitude of the discharge current within some time period after the transfer of energy from the primary coil to the secondary coil begins. The principles of the present invention are accordingly applicable to control the duration and/or magnitude of ignition plug discharge current to thereby minimize electrode erosion while maximizing ignitability in either a conventional ignition plug-based ignition system or an arc propelling ignition plug-based ignition system.
    • 用于控制内燃机的点火能量的系统包括具有初级线圈和二次线圈的点火线圈,该初级线圈和次级线圈耦合到在其间限定火花隙的火花塞的第一和第二电极,其中初级线圈可操作以引起火花电压 跨越次级线圈并穿过火花隙。 次级线圈响应于火花电压以产生跨火花塞的火花隙的放电电流。 根据本发明的一个方面,提供了用于可控制地分流初级线圈从而控制穿过火花塞的火花隙的放电电流的持续时间的装置。 根据本发明的另一方面,还提供了用于将放电电流从火花塞拉出的装置,从而在将能量从初级线圈传递到次级线圈开始之后的一段时间内限制放电电流的大小 。 因此,本发明的原理可应用于控制火花塞放电电流的持续时间和/或幅度,从而使电极侵蚀最小化,同时使传统的基于火花塞的点火系统或电弧推进火花塞式点火系统中的点火最大化 。