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公开(公告)号:US20100313640A1
公开(公告)日:2010-12-16
申请号:US12742734
申请日:2008-11-18
申请人: Frederic Galtier , Roger Rouphael , Jeroen Van Est
发明人: Frederic Galtier , Roger Rouphael , Jeroen Van Est
IPC分类号: G01M15/08
CPC分类号: F02D41/1497 , F02D35/024 , F02D35/027 , F02D2200/025
摘要: A method for determining a value representative of the pressure in a combustion chamber of an internal combustion engine, includes the following steps: i. measuring the vibration level (2) of the internal combustion engine with an accelerometer placed on the engine block of the internal combustion engine, ii. integrating a value from the signal (2) provided by the accelerometer in a window (t1, t2) delimited as a function of the position of the crankshaft of the internal combustion engine, iii. supplying the result of the integration (A1) as a value representative of the pressure, characterized in that the signal (2) provided by the accelerometer in step “i” is integrated while being raised to a power greater than 1 by a predetermined exponent.
摘要翻译: 一种用于确定代表内燃机的燃烧室中的压力的值的方法,包括以下步骤:i。 使用放置在内燃机的发动机缸体上的加速度计来测量内燃机的振动水平(2),ii。 将由加速度计提供的信号(2)的值积分在作为内燃机的曲轴的位置的函数的界定的窗口(t1,t2)中; iii。 提供积分的结果(A1)作为表示压力的值,其特征在于,在步骤“i”中由加速度计提供的信号(2)被积分,同时以预定指数升高到大于1的功率。