基本信息:
- 专利标题： METHOD OF CONTROLLING THE SPARK LEAD OF AN INTERNAL COMBUSTION ENGINE
- 专利标题（中）：控制内燃机火花线的方法
- 申请号：EP06831795.7 申请日：2006-12-22
- 公开(公告)号：EP1963643B1 公开(公告)日：2018-01-24
- 发明人： PO, Giacomo , CAVINA, Nicolo' , POGGIO, Luca
- 申请人： FERRARI S.p.A.
- 申请人地址： Via Emilia Est, 1163 41100 Modena IT
- 专利权人： FERRARI S.p.A.
- 当前专利权人： FERRARI S.p.A.
- 当前专利权人地址： Via Emilia Est, 1163 41100 Modena IT
- 代理机构： Maccagnan, Matteo
- 优先权： ITBO20050789 20051223
- 国际公布： WO2007072207 20070628
- 主分类号： F02D35/02
- IPC分类号： F02D35/02 ; F02P5/152 ; F02P17/12
摘要：
A method of controlling the spark lead of an internal combustion engine having at least one cylinder fitted with a spark plug; the method including the steps of: determining a standard spark lead value; determining an engine knock index in the cylinder; calculating a correction factor as a function of the engine knock index; determining a modified spark lead value by applying the correction factor to the standard spark lead value; and controlling the spark plug using the modified spark lead value. The correction factor is calculated by statistically analyzing a number of engine knock indexes to calculate a cumulative distribution; comparing the cumulative distribution with at least one target value; and modifying the current correction factor value as a function of the comparison between the cumulative distribution and the target value.