阅读说明：本技术 控制内燃机点火线圈的电子装置及其用于检测内燃机失火的电子点火系统 (Electronic device for controlling ignition coil of internal combustion engine and electronic ignition system for detecting fire of internal combustion engine ) 是由 欧金尼奥·卡鲁加蒂 斯特凡诺·席尔瓦 帕斯夸莱·福特 于 2020-02-19 设计创作，主要内容包括：公开了一种控制内燃机点火线圈的电子装置(1)。该装置包括高压开关(4)、驱动单元(5)、偏置电路(6)和积分电路(7)。高压开关与线圈的初级绕组串联连接,并且被配置为在闭合位置和打开位置之间切换。驱动单元被配置为在将能量充入初级绕组的阶段(T-chg)期间控制高压开关的闭合,其被配置为在从线圈的初级绕组到次级绕组的能量转移阶段(T-tr)期间以及在能量转移阶段之后的电离电流(I-ion)的测量阶段(T-ion)期间控制高压开关的打开,其中,所述电离电流借助于在能量转移阶段中由火花塞(3)生成的火花,由在发动机汽缸的燃烧室中的助燃可燃混合物的燃烧过程期间产生的离子生成。偏置电路被配置为在电离电流的测量阶段(T-ion)期间生成所述电离电流(I-ion),其中,所述偏置电路串联连接到次级绕组的第二端子。积分电路(7)置于偏置电路和参考电压(GND)之间。积分电路包括串联连接到偏置电路(6)并连接在偏置电路和参考电压之间的积分电容器(C4)。积分电容器被配置为在从初级绕组到次级绕组的能量转移阶段(T-tr)期间借助于流经次级绕组的电流完全放电,其被配置为在电离电流(I-ion)的测量阶段(T-ion)期间,充电(t5,t7)至不为零的值,以便在助燃可燃混合物的正确点火的情况下测量电离电流的积分值,并且其被配置为在电离电流(I-ion)的测量阶段(T-ion)期间保持基本为零的电荷(t25,t27),以便在助燃可燃混合物失火的情况下测量电离电流积分的基本为零的值。(An electronic device (1) for controlling an ignition coil of an internal combustion engine is disclosed. The device comprises a high-voltage switch (4), a driving unit (5), a biasing circuit (6) and an integrating circuit (7). A high voltage switch is connected in series with the primary winding of the coil and is configured to switch between a closed position and an open position. The drive unit is configured to control the closing of the high-voltage switch during a phase (T _ chg) of charging energy into the primary winding, it is configured to control the opening of the high-voltage switch during an energy transfer phase (T _ tr) from the primary winding to the secondary winding of the coil and during a measurement phase (T _ ion) of an ionization current (I _ ion) following the energy transfer phase, wherein the ionization current is generated by ions generated during a combustion process of a comburent combustible mixture in a combustion chamber of an engine cylinder by means of a spark generated by a spark plug (3) in the energy transfer phase. A bias circuit is configured to generate an ionization current (I _ ion) during a measurement phase (T _ ion) of the ionization current, wherein the bias circuit is connected in series to the second terminal of the secondary winding. An integration circuit (7) is interposed between the bias circuit and the reference voltage (GND). The integrating circuit includes an integrating capacitor (C4) connected in series to the bias circuit (6) and connected between the bias circuit and a reference voltage. The integrating capacitor is configured to be completely discharged by means of the current flowing through the secondary winding during an energy transfer phase (T _ tr) from the primary winding to the secondary winding, it is configured to be charged (T5, T7) to a value different from zero during a measurement phase (T _ ion) of the ionization current (I _ ion) in order to measure the integrated value of the ionization current in case of correct ignition of the comburent combustible mixture, and it is configured to maintain a substantially zero charge (T25, T27) during the measurement phase (T _ ion) of the ionization current (I _ ion) in order to measure a substantially zero value of the ionization current integration in case of misfire of the comburent combustible mixture.)