发明名称 |
Fuel injection controller for internal combustion engine |
摘要 |
When a specified learning executing condition is established, a command furl injection quantity ratio (CFIQ-ratio) between two fuel injectors is compulsorily changed and a fuel injection quantity error of each fuel injector is learned respectively based on the CFIQ-ratio and an air-fuel-ratio feedback correction value. Based on the learning value of fuel injection quantity error, a fuel injection period of each fuel injector is respectively corrected, whereby each fuel injection quantity error of two fuel injectors is respectively corrected with respect to each cylinder. Thereby, a ratio of fuel injection quantity between two fuel injectors is accurately controlled. |
申请公布号 |
US8219302(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20090469860 |
申请日期 |
2009.05.21 |
申请人 |
YAMASHITA HIROSHI;KOUDA AKINORI;DENSO CORPORATION |
发明人 |
YAMASHITA HIROSHI;KOUDA AKINORI |
分类号 |
F02D41/30;F02M15/00;G06F19/00 |
主分类号 |
F02D41/30 |
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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