发明名称 |
Air-fuel ratio control system for internal combustion engines |
摘要 |
An air-fuel ratio control system for an internal combustion engine having a catalytic converter arranged in the exhaust system, a first air-fuel ratio sensor arranged upstream of the catalytic converter, and a second air-fuel ratio sensor arranged downstream of the catalytic converter, calculates an air-fuel ratio control variable, based on an output from the second air-fuel ratio sensor. An air-fuel ratio correction amount is calculated based on an output from the first air-fuel ratio sensor and the air-fuel ratio control variable. The air-fuel ratio of a mixture supplied to the engine is controlled based on the air-fuel ratio correction amount. The air-fuel ratio control variable is corrected in the rich direction such that the air-fuel ratio of the mixture supplied to the engine becomes richer, when deterioration of the catalytic converter is detected.
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申请公布号 |
US5398501(A) |
申请公布日期 |
1995.03.21 |
申请号 |
US19930137433 |
申请日期 |
1993.10.15 |
申请人 |
HONDA GIKEN KOGYO K.K. (HONDA MOTOR CO., LTD. IN ENGLISH) |
发明人 |
ITO, HIROSHI;IWATA, YOICHI;TAKIZAWA TSUYOSHI;SATO, TOSHIHIKO;IIDA, NAOKI;NAKAYAMA, TAKAYOSHI |
分类号 |
F01N3/20;F01N11/00;F02D41/14;F02D41/22;(IPC1-7):F01N3/20 |
主分类号 |
F01N3/20 |
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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