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1.发明授权Method and system for reducing engine spark knock during a rapid transient 失效在快速瞬变期间减少发动机火花爆震的方法和系统
公开(公告)号：US5445127A
公开(公告)日：1995-08-29
申请号：US299135
申请日：1994-08-31
CPC分类号： F02P5/1521 , Y02T10/46
摘要： A method and system is provided for reducing engine spark knock during rapid transient operating conditions. The method includes the step of determining, at periodic intervals, an estimate of airflow into a combustion chamber. The method also includes the step of determining, at periodic intervals, whether rapid transient operating conditions exist. If such conditions exist, an estimated spark advance is determined based on the estimated airflow. Finally, a spark is fired in the combustion chamber based on the estimated spark advance parameter.
摘要翻译： 提供了一种在快速瞬态运行条件下减少发动机火花爆震的方法和系统。 该方法包括以周期性间隔确定进入燃烧室的气流的估计的步骤。 该方法还包括以周期性间隔确定是否存在快速瞬态操作条件的步骤。 如果存在这种情况，则基于估计的气流来确定估计的火花提前。 最后，基于估计的火花提前参数在燃烧室内发射火花。
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2.发明授权Ignition timing control system for varying cold start spark advance during adaptive learning 失效点火定时控制系统用于在自适应学习过程中改变冷启动火花提前
公开(公告)号：US5540202A
公开(公告)日：1996-07-30
申请号：US539243
申请日：1995-10-04
申请人： Michael J. Cullen , Robert M. Marzonie , Alan R. Dona , Eric. J. Grant , Ronald A. Yannone , Patrick J. Eggers
发明人： Michael J. Cullen , Robert M. Marzonie , Alan R. Dona , Eric. J. Grant , Ronald A. Yannone , Patrick J. Eggers
CPC分类号： F02P5/1506 , F02D41/024 , F02D41/2454 , F02D2200/0804 , F02D41/2477 , Y02T10/26 , Y02T10/46
摘要： An electronic ignition timing system which cooperates with an adaptive closed loop fuel control system to provide more rapid heating of an exhaust catalyst by retarding the ignition tinning during colds starts only after an index of maturity value has been generated to indicate that fuel control parameters which characterize an individual engine have been adaptively learned and are available to operate the engine with a lean mixture during cold idling conditions. The index of maturity value alters the mode of operation of the fuel control mechanism to provide robust rich operation prior to adaptation and a more aggressive lean mode operation after the adaptive parameters have been developed which permit optimized operation, and alters the ignition timing to retard the spark to more rapidly heat the exhaust catalyst. A mechanism responsive to the estimated temperature of the catalyst restores the spark advance when the catalyst has been heated, and also restores the spark advance when the throttle is depressed.
摘要翻译： 一种电子点火正时系统，其与适应性闭环燃料控制系统配合，以在冷启动期间通过延迟点火镀层来提供更快速的加热排气催化剂，仅在已经产生了成熟度值的指标之后，表明燃料控制参数 单个发动机已经被自适应地学习，并且可以在冷空转条件下用稀混合物来操作发动机。 成熟度值的指标改变燃料控制机构的运行模式，以便在自适应参数被开发之后，在自适应之前提供稳健的丰富的操作，并且在开发了适应性参数之后进行更积极的精益模式操作，其允许优化的操作，并改变点火正时以延迟 火花更快地加热排气催化剂。 当催化剂被加热时，响应于催化剂的估计温度的机构恢复火花提前，并且当节流阀被压下时还恢复火花提前。
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