发明名称 |
Air-fuel radio control system for engine |
摘要 |
An air-fuel ratio control system for an engine in which a fuel injection amount is calculated according to the engine operating conditions and is corrected according to the output of an air-fuel ratio sensor, comprises a base fuel injection amount calculating section for calculating a base fuel injection amount corresponding to the stoichiometric air-fuel ratio on the basis of the intake air amount, a target air-fuel ratio calculating section for calculating a target air-fuel ratio according to the engine operating condition, a reference value calculating section for calculating a reference value which represents the target air-fuel ratio and is submitted to comparison with the output of the air-fuel ratio sensor, a feedback correction coefficient calculating section for calculating a feedback coefficient according to the deviation of the output of the air-fuel ratio sensor from the reference value, and a final fuel injection amount calculating section which corrects the base fuel-injection amount on the basis of the ratio of the stoichiometric air-fuel ratio to the target air-fuel ratio and the feedback coefficient to obtain a final fuel injection amount.
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申请公布号 |
US4763629(A) |
申请公布日期 |
1988.08.16 |
申请号 |
US19870014266 |
申请日期 |
1987.02.12 |
申请人 |
MAZDA MOTOR CORPORATION |
发明人 |
OKAZAKI, KATSUMI;YOKOOKU, KATSUHIKO;WATANABE, TOMOMI;NAKAZUMI, TADATAKA;MAMIYA, KIYOTAKA |
分类号 |
F02D41/14;F02D41/18;(IPC1-7):F02M17/00 |
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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