Measurement of variations in internal combustion engine output
    1.
    发明授权
    Measurement of variations in internal combustion engine output 失效
    内燃机输出变化的测量

    公开(公告)号:US4532798A

    公开(公告)日:1985-08-06

    申请号:US615910

    申请日:1984-05-31

    IPC分类号: G01M15/04 G01M15/08 G01M15/00

    摘要: In a method for measuring variations in the output of an internal combustion engine, at least one of signals respectively representing an engine speed, torque, and internal cylinder pressure of the internal combustion engine during the firing strokes of the engine is obtained. A periodical and pulsating change in the obtained signal is detected. A differential value at a portion of the change of the signal having a maximum gradient is then detected. Another method provides measuring variations in the output of the internal combustion engine by calculating the difference between the maximum and minimum values of the change of the obtained signal. Still another method provides measuring variations in the output of the internal combustion engine by correcting the obtained value in accordance with the engine speed. Still another method provides measuring variations in the output of the internal combustion engine by calculating the difference between consecutive changes.

    摘要翻译: 在一种用于测量内燃机的输出变化的方法中,获得分别代表发动机的点火行程期间内燃机的发动机转速,转矩和内汽缸压力的信号中的至少一个。 检测到所获得的信号中的周期性和脉动变化。 然后检测具有最大梯度的信号的变化的一部分的差分值。 另一种方法通过计算获得的信号的变化的最大值和最小值之间的差异来提供内燃机输出的测量变化。 另一种方法通过根据发动机转速校正获得的值来提供内燃机的输出的测量变化。 另一种方法通过计算连续变化之间的差异来提供内燃机输出的测量变化。