发明名称 |
Air-fuel ratio control apparatus |
摘要 |
<p>An air-fuel ratio control apparatus is basically provided with an exhaust system, a first sensor and a controller. The exhaust system includes an exhaust channel with a main catalytic converter disposed therein, a bypass channel with a bypass catalytic converter disposed therein, and a valve mechanism disposed in the exhaust channel between the connection points of the exhaust channel to switch a pathway for exhaust gas from the exhaust channel to the bypass channel. The first sensor detects a property indicative of an air-fuel ratio of exhaust flowing in the exhaust channel at a point downstream of the valve mechanism. The controller adjusts an element temperature of the first sensor to a prescribed temperature or less during a prescribed interval of time from when the valve mechanism is switched from a closed state to an open state.</p> |
申请公布号 |
EP1944491(B1) |
申请公布日期 |
2013.11.13 |
申请号 |
EP20080150080 |
申请日期 |
2008.01.08 |
申请人 |
NISSAN MOTOR COMPANY LIMITED |
发明人 |
OOTAKE, YOSHIYUKI;ISHIZUKA, YASUJI;KOGA, MASAKI;SATO, KENICHI |
分类号 |
F02D41/14;F01N3/10;F01N3/20;F01N13/08;F02D41/02 |
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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