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1. 发明授权

US5534781A Combustion detection via ionization current sensing for a "coil-on-plug" ignition system 失效
标题翻译： “线圈插头”点火系统通过电离电流检测进行燃烧检测
公开(公告)号：US5534781A
公开(公告)日：1996-07-09
申请号：US291644
申请日：1994-08-15
申请人： Anscn Lee , Jan S. Pyko
发明人： Anscn Lee , Jan S. Pyko
IPC分类号： F02P17/12 , G01L23/22 , F02P17/00 , G01M15/00
CPC分类号： F02P17/12 , G01L23/221 , F02P2017/125 , F02P2017/128
摘要： An ionization current sensing circuit providing a way to detect the combustion event in a spark ignited engine cylinder. The presence of an output signal from the proposed circuit indicates that a flame exists and that combustion has occurred in the cylinder. This signal is drastically changed if combustion is absent, the circuit providing viable engine misfire detection. The ionization current sensing circuit comprising a power source for providing voltage directly to the primary winding of the ignition coil, an integrator for integrating a spark plug ionization current and thereby providing a voltage output in proportion to the integral of the ionization current, and an ionization current sensing module for sensing a spark plug ionization current, the ionization means connected between the secondary winding of the ignition coil and the integrator means.
摘要翻译：电离电流检测电路提供了检测火花点火发动机气缸中的燃烧事件的方法。来自所提出的电路的输出信号的存在表示存在火焰，并且在气缸中发生燃烧。如果燃烧不存在，则该信号会急剧改变，该电路提供可行的发动机失火检测。电离电流检测电路包括用于直接向点火线圈的初级绕组提供电压的电源，用于积分火花塞电离电流的积分器，从而提供与电离电流的积分成比例的电压输出，以及电离用于感测火花塞电离电流的电流感测模块，连接在点火线圈的次级绕组和积分器装置之间的电离装置。

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