发明名称 |
DIAGNOSTIC SYSTEM AND DIAGNOSTIC METHOD FOR INTERNAL COMBUSTION ENGINE |
摘要 |
<p>A diagnostic system for an engine includes: a plurality of cylinders, in-cylinder injectors, port injectors and an electronic control unit. The electronic control unit configured to make an abnormality diagnosis of an air-fuel ratio due to the in-cylinder injectors and then to make an abnormality diagnosis of the air-fuel ratio due to the port injectors. The electronic control unit is configured to make an abnormality diagnosis of the air-fuel ratio due to the in-cylinder injectors in an operating situation in which fuel is injected from only the in-cylinder injectors, and to make an abnormality diagnosis of the air- fuel ratio due to the port injectors by increasing a ratio of an injection amount of the port injectors when the electronic control unit has diagnosed that there is an abnormality of the air-fuel ratio in an operating situation in which fuel is injected from both the in-cylinder injectors and the port injectors.</p> |
申请公布号 |
WO2014020393(A1) |
申请公布日期 |
2014.02.06 |
申请号 |
WO2013IB01579 |
申请日期 |
2013.07.22 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA;MATSUMOTO, TAKASHI |
发明人 |
MATSUMOTO, TAKASHI |
分类号 |
F02D41/14;F02D41/22;F02D41/30 |
主分类号 |
F02D41/14 |
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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