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    • 35. 发明授权
    • Ignition device and spark condition detection method
    • 点火装置和火花状态检测方法
    • US07348782B2
    • 2008-03-25
    • US11406360
    • 2006-04-19
    • Koji Ando
    • Koji Ando
    • F02P17/00F02P3/05
    • F02P17/12F02D2041/2058F02P2017/125
    • When a spark discharge is produced, a first current flows in one direction. From a rise of an ignition signal to energize an ignition coil to a fall of the ignition signal to deenergize the ignition coil, in order that a second current flowing in the opposite direction can be detected, the voltage into which the second current has been converted is compared with a first threshold voltage for smolder detection. After the fall of the ignition signal to the rise of the ignition signal, the voltage into which the second current has been converted is compared with a second threshold voltage for misfire detection. The first threshold is set larger than the second threshold.
    • 当产生火花放电时,第一电流沿一个方向流动。 从点火信号的上升起动点火线圈的点火信号的点火,使点火线圈通电,为了能够检测出沿相反方向流动的第二电流,第二电流被转换成的电压 与用于闷燃检测的第一阈值电压进行比较。 在点火信号下降到点火信号的上升之后,将第二电流转换成的电压与用于失火检测的第二阈值电压进行比较。 第一阈值被设置为大于第二阈值。
    • 37. 发明授权
    • Ion current detecting device in internal combustion engine
    • 内燃机离子电流检测装置
    • US07164271B2
    • 2007-01-16
    • US11331025
    • 2006-01-13
    • Koji Ando
    • Koji Ando
    • F02P17/00
    • F02P17/12
    • An ion current detecting device includes an ion current detecting unit which detects ion current based on combustion ion generated after an ignition which is performed in a combustion chamber and an amplifier unit which amplifies ion current detected by the ion current detecting unit. The amplifier unit has an amplification rate which is set so that an output amplified ion current varies nonlinearly with ion current of the ion current detecting unit. Thus, the amplifier unit enables the amplification rate to vary according to a level of ion current. Therefore, ion current can be detected correctly even if a minute ion current is generated when the spark plug malfunctions etc., and even if ion current becomes higher.
    • 离子电流检测装置包括:离子电流检测单元,其基于在燃烧室中进行的点火之后产生的燃烧离子和放大由离子电流检测单元检测出的离子电流的放大器单元检测离子电流。 放大器单元具有放大率,其被设置为使得输出放大的离子电流随着离子电流检测单元的离子电流而非线性变化。 因此,放大器单元使得放大率能够根据离子电流的水平而变化。 因此,即使在火花塞发生故障等时产生微小的离子电流,即使离子电流变高,也能够正确地检测离子电流。
    • 39. 发明授权
    • Ignition control apparatus for internal combustion engine
    • 内燃机点火控制装置
    • US07095182B2
    • 2006-08-22
    • US11007239
    • 2004-12-09
    • Koji AndoHaruo Kawakita
    • Koji AndoHaruo Kawakita
    • F02B3/04
    • F02P3/051F02D2041/2058F02D2041/2075
    • An ignition control apparatus for an internal combustion engine of the present invention has a switching circuit and a control circuit. The switching circuit includes a first switch controlling a main current constituting the most portion of the coil current, a second switch controlling a sensing current constituting the coil current together with the main current; and a temperature sensor detecting temperatures of the first and the second switches, which are realized by semiconductors. The control circuit, which is heat-isolated from the switching circuit, includes a current limiting circuit operating the first switch and the second switch to adjust the coil current to a predetermined value based on the sensing current, and a thermal shutoff circuit turning off both the first switch and the second switch when the temperature detected by the temperature sensor exceeds a predetermined threshold value.
    • 本发明的内燃机点火控制装置具有开关电路和控制电路。 开关电路包括控制构成线圈电流的大部分的主电流的第一开关,与主电流一起控制构成线圈电流的感测电流的第二开关; 以及检测由半导体实现的第一和第二开关的温度的温度传感器。 从开关电路热隔离的控制电路包括操作第一开关和第二开关的限流电路,以基于感测电流将线圈电流调节到预定值,并且热断开电路将两者都断开 当由温度传感器检测到的温度超过预定阈值时,第一开关和第二开关。