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    • 24. 发明授权
    • Knock suppressing apparatus for internal combustion engine
    • 内燃机用灭火装置
    • US5287837A
    • 1994-02-22
    • US748725
    • 1991-08-22
    • Atsuko HashimotoToshio Iwata
    • Atsuko HashimotoToshio Iwata
    • F02B1/04F02D41/14F02P5/152F02P5/14
    • F02D41/1497F02P5/152F02B1/04Y02T10/46
    • A knock suppressing apparatus for an internal combustion engine includes: a knock sensor for sensing the vibrations of an engine and generating a corresponding output signal; an interface circuit for generating a vibration level based on the output signal of the knock sensor; a noise level detector for generating a noise level based on the vibration level; a memory for storing a basic noise level, a basic threshold level and a correction value in relation to the number of revolutions per minute of the engine; a calculator for updating the correction value based on the noise level, the basic noise level and a current engine operating condition, and generating a corrected threshold for knock determination based on the basic threshold and the updated correction value; a knock determiner for making a comparison between the vibration level and the corrected threshold and generating a knock determination signal if the vibration level exceeds the corrected threshold; and a controller for controlling, based on the knock determination signal from the knock determiner, an engine control parameter in a direction to suppress knocking. A condition determiner may be further provided for determining whether the engine is in a predetermined operating range suitable for updating the correction value. In this case, the calculator updates the correction value and generates the corrected threshold if the engine is in the predetermined operating range.
    • 用于内燃机的爆震抑制装置包括:用于感测发动机振动并产生相应输出信号的爆震传感器; 接口电路,用于基于所述爆震传感器的输出信号产生振动水平; 噪声电平检测器,用于基于振动电平产生噪声电平; 存储器,用于存储与发动机的每分钟转数相关的基本噪声水平,基本阈值水平和校正值; 基于所述噪声电平,所述基本噪声电平和当前发动机运转状况来更新所述校正值的计算器,并且基于所述基本阈值和所述更新后的校正值生成用于爆震判定的校正阈值; 敲击判定器,用于在振动水平和校正阈值之间进行比较,并且如果振动水平超过校正阈值则产生爆震判定信号; 以及控制器,用于基于来自爆震判定器的爆震判定信号,控制在抑制爆震的方向上的发动机控制参数。 可以进一步提供条件确定器,用于确定发动机是否处于适合于更新校正值的预定操作范围。 在这种情况下,如果发动机处于预定操作范围,则计算器更新校正值并产生校正阈值。
    • 27. 发明授权
    • Engine spark timing control system
    • 发动机火花定时控制系统
    • US4819171A
    • 1989-04-04
    • US891926
    • 1986-07-31
    • Tatsuo Morita
    • Tatsuo Morita
    • F02P5/152F02P5/14
    • F02P5/1521Y02T10/46
    • A basic target spark timing is determined in accordance with an operating condition of an engine. A spark timing knock corrective value is determined in accordance with the presence or absence of a knock in the engine. A spark timing learning corrective value is determined in accordance with the spark timing knock corrective value and with the engine operating condition. When a transitional condition of the engine is detected, the spark timing knock corrective value is fixed to a preset value independent of the presence or absence of the knock and also independent of the engine operating condition. A final target spark timing is determined in accordance with the basic target spark timing, the spark timing knock corrective value, and the spark timing learning corrective value. A spark is generated in the engine at a timing in agreement with the final target spark timing.
    • 根据发动机的运行状况来确定基本目标火花正时。 火花正时敲击校正值根据发动机的爆震是否存在来确定。 根据火花正时敲击校正值和发动机工作条件确定火花定时学习校正值。 当检测到发动机的过渡状态时,火花正时爆震校正值被固定为独立于爆震的存在或不存在的预设值,并且也与发动机工作条件无关。 根据基本目标火花正时,火花正时敲击校正值和火花定时学习校正值来确定最终目标火花正时。 在与最终目标火花时刻一致的时刻,在发动机中产生火花。
    • 29. 发明授权
    • Ignition timing control apparatus for an internal combustion engine
    • 用于内燃机的点火正时控制装置
    • US4777919A
    • 1988-10-18
    • US48899
    • 1987-05-12
    • Yoshiaki KannoKatsuya NakamotoJiro Sumitani
    • Yoshiaki KannoKatsuya NakamotoJiro Sumitani
    • F02P5/02F02D41/18F02P5/14F02P5/15
    • F02P5/142F02P5/1502Y02T10/46
    • An ignition timing control apparatus for an internal combustion engine has an air flow sensor for sensing the air flow rate into the air intake pipe of the engine and producing an electrical output signal in the form of pulses having a frequency which is proportional to the air flow rate, and a crank angle sensor for producing an electrical output pulse each time the crankshaft of the engine is at a prescribed crank angle. A pulse counter counts the number of output pulses from the air flow sensor between consecutive output pulses of the crank angle sensor. A controller controls the current to an ignition coil based on the engine rotational speed and on either the output of the pulse counter, or on the output of a calculating mechanism which calculates the amount of intake air into the cylinders of the engine between consecutive output pulses of the crank angle sensor based on the output of the pulse counter.
    • 用于内燃机的点火正时控制装置具有用于感测进入发动机进气管的空气流量的空气流量传感器,并产生具有与气流成比例的频率的脉冲形式的电输出信号 速度和用于每次发动机的曲轴处于规定的曲柄角时产生电输出脉冲的曲柄角传感器。 脉冲计数器对来自曲柄角传感器的连续输出脉冲之间的空气流量传感器的输出脉冲数进行计数。 控制器基于发动机转速和脉冲计数器的输出控制到点火线圈的电流,或者在计算机构的输出端上计算在连续输出脉冲之间进入发动机气缸的进气量 的曲柄角传感器基于脉冲计数器的输出。