发明名称 |
Cylinder air/fuel ratio estimation system of internal combustion engine |
摘要 |
In a direct injection spark ignition engine which is operable in three operation modes including a stoichiometric air/fuel ratio operation mode, a pre-mixture combustion mode and a stratified combustion operation mode which are different in the desired air/fuel ratio and a single air/fuel ratio sensor installed downstream of the exhaust manifold, the sensor output is successively sampled and one from among the sampled data is selected based on the engine speed and engine load and selected one of the operation modes such that the air/fuel ratio at each cylinder can be accurately estimated for the selected operation mode under the engine operating conditions.
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申请公布号 |
US6550465(B2) |
申请公布日期 |
2003.04.22 |
申请号 |
US20010904476 |
申请日期 |
2001.07.16 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
UENO MASAKI;EHARA YASUNORI;SATO MASAHIRO;OGAWA KEN |
分类号 |
F02D45/00;F02D41/04;F02D41/14;F02D41/24;F02D41/30;(IPC1-7):F02D41/00 |
主分类号 |
F02D45/00 |
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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