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    • 16. 发明授权
    • System for feedback-controlling the air-fuel ratio of an air-fuel
mixture to be supplied to an internal combustion engine
    • 用于反馈控制要供应到内燃机的空气燃料混合物的空燃比的系统
    • US5056308A
    • 1991-10-15
    • US470135
    • 1990-01-25
    • Tateo KumeMichiyasu YoshidaYoshiaki KodamaKazuo Koga
    • Tateo KumeMichiyasu YoshidaYoshiaki KodamaKazuo Koga
    • F02D41/14
    • F02D41/1443F02D41/1495F02D2041/1432F02D41/1456
    • A feedback control system for an air-fuel ratio according to the present invention comprises a first oxygen sensor for detecting the oxygen concentration of exhaust gas flowing through a first exhaust pipe of an internal combustion engine, a second oxygen sensor for detecting the oxygen concentration of the exhaust gas passed through an exhaust gas disposer in a common exhaust passage which is connected with both first and second exhaust pipes of the engine, and an electronic control unit for calculating the amount of fuel supply to each cylinder of the engine in accordance with the oxygen concentration of the exhaust gas detected by means of the first oxygen sensor. The electronic control unit contains therein a correction circuit for correcting the amount of fuel supply to that cylinder of the engine which is associated with the second exhaust pipe, in accordance with the oxygen concentration of the exhaust gas detected by means of the second oxygen sensor.
    • 根据本发明的用于空燃比的反馈控制系统包括用于检测流过内燃机的第一排气管的排气的氧浓度的第一氧传感器,用于检测内燃机的第一排气管的氧浓度的第二氧传感器 排气通过与发动机的第一排气管和第二排气管连接的公共排气通道中的废气处理器,以及电子控制单元,用于计算根据该发动机的每个气缸的燃料供给量 通过第一氧传感器检测的废气的氧浓度。 电子控制单元包含校正电路,用于根据通过第二氧传感器检测的排气的氧气浓度来校正与第二排气管相关联的发动机气缸的燃料量。