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热词
    • 6. 发明授权
    • System for controlling the ignition timing of a combustion engine
    • 用于控制内燃机的点火正时的系统
    • US4488528A
    • 1984-12-18
    • US587739
    • 1984-03-08
    • Kouji Morikawa
    • Kouji Morikawa
    • F02P5/152F02P5/153G01L23/22G01M15/00F02P5/04
    • G01L23/221G01L23/225
    • A system for controlling the ignition timing of an engine has a probe provided on the wall of a cylinder of the engine opposite the piston in the cylinder. A capacitance-to-voltage converting circuit is provided for measuring the crank angle of the engine by the capacitance between the probe and the top of the piston and for producing an output dependent on the crank angle, and a second circuit is provided for measuring the velocity of flame propagation in the cylinder by detecting the ionization current flowing between the probe and the cylinder and for producing an output when the velocity is very high. An ignition timing control circuit is responsive to output of the converting circuit and second circuit for retarding the ignition timing so as to prevent the knocking of the engine.
    • 用于控制发动机的点火正时的系统具有设置在发动机气缸的壁上的探针,其与气缸中的活塞相对。 提供了一种电容电压转换电路,用于通过探头与活塞的顶部之间的电容来测量发动机的曲柄角,并且用于产生取决于曲柄角的输出,并且提供第二电路用于测量 通过检测在探针和气缸之间流动的电离电流并且当速度非常高时产生输出,在气缸中的火焰传播速度。 点火正时控制电路响应于转换电路和第二电路的输出以延迟点火正时,以防止发动机的爆震。