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公开(公告)号：US06012427A
公开(公告)日：2000-01-11
申请号：US87590
申请日：1998-05-29
CPC分类号： F02P7/0675 , F02P7/0775
摘要： The present invention relates to apparatus for scheduling the ignition sparks for a spark ignition internal combustion engine. An ignition system for a spark ignition engine, includes a device for generating a series of pulses (12) upon each revolution of a crankshaft (1) and a device (8,118) for identifying pulses in the series relative to a top dead center position (TDC) for the engine, one or more ignition coils and a device to charge a coil and then to discharge the coil to generate an ignition spark at a desired spark angle (54) relative to the top dead center position (TDC). The ignition system identifies a first particular pulse (60) occurring after the charging starts and before the discharging begins, and calculates a first interval (I.sub.D) from the first particular pulse (60) so that the discharging happens proximate the desired spark angle (54).
摘要翻译： 本发明涉及一种调度火花点火式内燃机点火火花的装置。 一种用于火花点火发动机的点火系统，包括用于在曲轴（1）旋转一周时产生一系列脉冲（12）的装置和用于识别相对于上死点位置的串联脉冲的装置（8,118） TDC），一个或多个点火线圈和用于对线圈充电的装置，然后使线圈放电以相对于上死点位置（TDC）以期望的火花角（54）产生点火火花。 点火系统识别在充电开始之后和放电开始之前发生的第一特定脉冲（60），并且从第一特定脉冲（60）计算第一间隔（ID），使得放电发生在期望的火花角附近（54 ）。
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公开(公告)号：US6100701A
公开(公告)日：2000-08-08
申请号：US88813
申请日：1998-06-02
CPC分类号： F02P11/02 , F02P11/06 , F02P3/0554
摘要： The present invention relates to the monitoring of current drawn by an ignition coil for a spark ignition engine, and in particular to circuitry and a method for detecting a malfunction in the charging of an ignition coil or its associated drive circuitry. The electronic circuit comprises: circuitry to measure the voltage of a battery (VB) for charging the coil; software (52) to determine according to the measured battery voltage (VB) a nominal dwell time (TC) for charging fully the coil prior to discharge of the coil; circuitry (32,34) to measure an amount of current drawn by the coil over a time less than the time taken to charge fully the coil; software (36) to extrapolate from the measured current a calculated expected dwell time TD to charge fully the coil; and a device to indicate an error condition (44,62,64,66,68) if the difference (44) between the expected (TD) and nominal (TC) dwell times is beyond a predetermined error limit (58,60).
摘要翻译： 本发明涉及对用于火花点火发动机的点火线圈汲取的电流的监视，特别涉及用于检测点火线圈或其相关联的驱动电路的充电故障的电路和方法。 电子电路包括：测量用于对线圈充电的电池（VB）的电压的电路; 软件（52）根据测量的电池电压（VB）来确定在线圈放电之前对线圈充分充电的标称停留时间（TC）; 电路（32,34），用于测量线圈在小于完全充电线圈所花费的时间的时间内消耗的电流量; 软件（36）从测量电流外推计算出的预期停留时间TD以充分充电线圈; 以及如果预期（TD）和标称（TC）停留时间之间的差值（44）超过预定的误差极限（58,60），则指示错误状态的装置（44,62,64,66,68）。
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