公开(公告)号：US20060015298A1

公开(公告)日：2006-01-19

申请号：US11115625

申请日：2005-04-26

申请人： Charles Daw ,  Timothy Fuller ,  Thomas Flynn ,  Charles Finney

发明人： Charles Daw ,  Timothy Fuller ,  Thomas Flynn ,  Charles Finney

IPC分类号： G06F11/00

CPC分类号： F23M11/045 ,  F23N5/08 ,  F23N5/16 ,  F23N2023/44 ,  F23N2029/04 ,  F23N2029/08

摘要： The current invention provides a method and apparatus, which uses symbol sequence techniques, temporal irreversibility, and/or cluster analysis to monitor the operating state of individual burner flames on a appropriate time scale. Both the method and apparatus of the present invention may be used optimize the performance of burner flames.

摘要翻译： 本发明提供了一种方法和装置，其使用符号序列技术，时间不可逆性和/或聚类分析来监视各个燃烧器火焰在适当时间尺度上的操作状态。 可以使用本发明的方法和装置优化燃烧器火焰的性能。

公开(公告)号：US20070250251A1

公开(公告)日：2007-10-25

申请号：US11380019

申请日：2006-04-25

申请人： Johney Green ,  Robert Wagner ,  Charles Daw

发明人： Johney Green ,  Robert Wagner ,  Charles Daw

IPC分类号： G06F17/00 ,  F02M7/00 ,  F02D41/00

CPC分类号： F02D41/3035 ,  F02B77/085 ,  F02D35/023 ,  F02D35/025 ,  F02D35/028 ,  F02D41/0057 ,  F02D41/401 ,  F02D2041/0017 ,  Y02T10/44

摘要： This invention detects the crank angle location where combustion switches from premixed to diffusion, referred to as the transition index, and uses that location to define integration limits that measure the portions of heat released during the combustion process that occur during the premixed and diffusion phases. Those integrated premixed and diffusion values are used to develop a metric referred to as the combustion index. The combustion index is defined as the integrated diffusion contribution divided by the integrated premixed contribution. As the EGR rate is increased enough to enter the low temperature combustion regime, PM emissions decrease because more of the combustion process is occurring over the premixed portion of the heat release rate profile and the diffusion portion has been significantly reduced. This information is used to detect when the engine is or is not operating in a low temperature combustion mode and provides that feedback to an engine control algorithm.

摘要翻译： 本发明检测燃烧切换从预混合到扩散的曲柄角位置，称为过渡指数，并且使用该位置来定义测量在预混合和扩散阶段期间发生的燃烧过程期间释放的热的部分的积分极限。 这些综合预混和扩散值用于开发一种称为燃烧指数的指标。 燃烧指数定义为综合扩散贡献除以综合预混合贡献。 随着EGR率增加到足以进入低温燃烧状态，由于更多的燃烧过程发生在放热速率分布的预混合部分上并且扩散部分已经显着减少，PM排放减少。 该信息用于检测发动机何时或不在低温燃烧模式下运行，并将该反馈提供给发动机控制算法。