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发明公开
CN104863712A 运行气体燃料的内燃发动机中的失火检测 无效 - 撤回

运行气体燃料的内燃发动机中的失火检测
摘要：
本发明公开了运行气体燃料的内燃发动机中的失火检测，具体地，公开了在运行气体燃料的内燃发动机中检测诸如失火的不完全燃烧的方法。所述方法包括：接收(步骤402)对应于单个燃烧循环内燃烧期间内缸压力的时间发展的压力数据；从特定燃烧循环的压力数据(506、508、510)导出(步骤404)燃烧的燃烧能量值；确定(步骤406B)所述导出的燃烧能量值超过预先确定的燃烧循环特定的燃烧阈值水平；以及将所述特定燃烧循环的燃烧事件与不完全燃烧相关联(步骤410)。
摘要（英）：

A method of detecting an incomplete combustion, such as a misfire, in an internal combustion engine operating at least partly on a gaseous fuel, includes: receiving pressure data corresponding to a temporal development of a cylinder pressure during a combustion event within a combustion cycle; deriving from the pressure data a combustion energy value of the combustion; determining that the derived combustion energy value is beyond a predetermined combustion-cycle specific combustion threshold level; and associating the combustion event with an incomplete combustion in the combustion cycle.

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