发明申请
- 专利标题: RESYNCHRONIZATION OF TEMPORALLY ACQUIRED ENGINE SIGNALS
- 专利标题(中): 临时获得发动机信号的重新定位
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申请号: US11955480申请日: 2007-12-13
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公开(公告)号: US20080162013A1公开(公告)日: 2008-07-03
- 发明人: Christian Grouffal , Gerard Thierry
- 申请人: Christian Grouffal , Gerard Thierry
- 优先权: FR06/10.996 20061215
- 主分类号: F02D35/02
- IPC分类号: F02D35/02
摘要:
An method of synchronizing a signal coming from at least one sensor positioned on an engine with a periodic event of the engine such as the crankshaft rotation is disclosed having application for engine control. A crankshaft rotation signal indicative of a reference time (TR), with which the engine signal(s) is to be synchronized, is acquired. The effective time difference (D) between the reference time and the time that is the closest to each temporally acquired engine signal is measured. Then the coefficients of a fractional digital compensation filter (FSDF) for compensating for the fractional part (d) of the measured effective time difference are determined. Finally, this digital compensation filter is applied to each temporally sampled engine signal, allowing obtaining of a series of digitized samples resealed from reference time (TR) for each engine signal.
公开/授权文献
- US07584043B2 Resynchronization of temporally acquired engine signals 公开/授权日:2009-09-01
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