发明名称 |
METHOD OF ACCURATELY METERING A GASEOUS FUEL THAT IS INJECTED DIRECTLY INTO A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE |
摘要 |
For gaseous fuels that are injected directly into a combustion chamber the mass flow rate through an injection valve can be influenced by changes in the in-cylinder pressure. A method and apparatus are provided for accurately metering a gaseous into a combustion chamber of an internal combustion engine. The method comprises inputting a fueling command; determining from said fueling command a baseline pulse width of an injection event, based upon a baseline pressure differential across a fuel injection valve; estimating the difference between said baseline pressure differential and an actual pressure differential; calculating a corrected pulse width by applying at least one correction factor to said baseline pulse width, wherein said correction factor is a function of the estimated difference between said baseline pressure differential and said actual pressure differential. |
申请公布号 |
EP1994273(A4) |
申请公布日期 |
2009.12.09 |
申请号 |
EP20070710636 |
申请日期 |
2007.02.19 |
申请人 |
WESTPORT POWER INC. |
发明人 |
BATENBURG, GREG;ANCIMER, RICHARD, J.;DUNN, MARK, EDWARD;GOUDIE, DALE |
分类号 |
F02M69/52;F02B43/00;F02D41/00;F02M21/02;F02M37/00;F02M67/06;F02M67/14;F02M69/16;G01F11/28 |
主分类号 |
F02M69/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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