发明名称 |
Systems and Methods For Determining Blow-By Gas Species Concentrations |
摘要 |
In one embodiment, a method for determining a blow-by gas species concentration may include calculating one-dimensional engine performance data with a one-dimensional engine performance model. The one-dimensional engine performance data may be based at least in part upon an engine operating condition. The one-dimensional engine performance data may be transformed, automatically with a processor executing a two-dimensional ring dynamics model, into piston ring motion data. The two-dimensional ring dynamics model simulates geometrical changes to a piston-ring pack flow path. The blow-by gas species concentration may be determined with a network model including the one-dimensional engine performance model and a two-dimensional ring pack model. The two-dimensional ring pack model simulates species concentration change in the piston-ring pack flow path. The blow-by gas species concentration may be determined using the engine operating condition and the piston ring motion data.
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申请公布号 |
US2012173119(A1) |
申请公布日期 |
2012.07.05 |
申请号 |
US20110984237 |
申请日期 |
2011.01.04 |
申请人 |
SHIEH TENGHUA TOM;NOMURA SHOHEI;BERNIER KYLE THOMAS;LIU WEI;TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC. |
发明人 |
SHIEH TENGHUA TOM;NOMURA SHOHEI;BERNIER KYLE THOMAS;LIU WEI |
分类号 |
G01M15/04 |
主分类号 |
G01M15/04 |
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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