发明公开
EP1907679A2 DISPOSITIF ET PROCEDE DE TRAITEMENT D'UN SIGNAL DE MESURE DE PRESSION D'UNE CHAMBRE DE COMBUSTION D'UN MOTEUR A COMBUSTION INTERNE
失效 - 权利终止
基本信息:
- 专利标题： DISPOSITIF ET PROCEDE DE TRAITEMENT D'UN SIGNAL DE MESURE DE PRESSION D'UNE CHAMBRE DE COMBUSTION D'UN MOTEUR A COMBUSTION INTERNE
- 专利标题（英）：Device and method for processing a signal of pressure measurement of an internal combustion engine combustion chamber
- 专利标题（中）：装置和方法用于处理信号的燃烧室压力测量甲发动机
- 申请号：EP06778961.0 申请日：2006-06-21
- 公开(公告)号：EP1907679A2 公开(公告)日：2008-04-09
- 发明人： CORDESSES, Lionel , MARSILIA, Marco
- 申请人： Renault SAS
- 申请人地址： 13-15, Quai Alphonse Le Gallo 92100 Boulogne Billancourt FR
- 专利权人： Renault SAS
- 当前专利权人： Renault SAS
- 当前专利权人地址： 13-15, Quai Alphonse Le Gallo 92100 Boulogne Billancourt FR
- 代理机构： Guyon, Rodolphe C.
- 优先权： FR0507264 20050707
- 国际公布： WO2007006988 20070118
- 主分类号： F02D35/02
- IPC分类号： F02D35/02 ; G01M15/08
摘要：
The invention concerns a device (10) for processing a signal of pressure measurement (Pr) of an internal combustion engine combustion chamber comprising: a low-pass filter (22) of the pressure measuring signal so as to obtain a filtered signal (Pf) and means (20) for subtracting the filtered signal from the pressure measuring signal to obtain a difference signal (ϵ); means (16) for comparing the difference signal to a predetermined threshold value; and means (16) for determining a combustion starting time as a time at which the difference signal reaches the predetermined threshold value.