发明名称 |
System and method for air flow and EGR flow estimation |
摘要 |
An exhaust gas recirculation system directs exhaust gasses from an exhaust manifold to an intake manifold of an internal combustion engine. The exhaust gasses travel from the exhaust manifold, first passing through a flow control valve and then through a measuring orifice before entering the intake manifold. Pressure upstream of the orifice is used, along with correction pressure downstream of the orifice, to measure and control exhaust gas flow. Further, manifold pressure is determined from downstream pressure and the used along with the measured exhaust gas flow to calculated a cylinder air charge amount.
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申请公布号 |
US6944530(B2) |
申请公布日期 |
2005.09.13 |
申请号 |
US20030625758 |
申请日期 |
2003.07.22 |
申请人 |
FORD GLOBAL TECHNOLOGIES, LLC |
发明人 |
RUSSELL JOHN D.;KOTWICKI ALLAN JOSEPH;GATES FREEMAN CARTER |
分类号 |
G01F1/42;F02D21/08;F02D41/00;F02D41/18;F02D41/32;F02M25/07;G01F1/34;G01F1/36;G01F9/00;G01F9/02;G01F22/02;(IPC1-7):F02M25/07 |
主分类号 |
G01F1/42 |
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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