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    • 21. 发明授权
    • In-engine deposit detection apparatus for engine control system
    • 用于发动机控制系统的发动机内沉积检测装置
    • US4869224A
    • 1989-09-26
    • US225354
    • 1988-07-28
    • Hideaki IshikawaOsamu AbeAiichi Uehara
    • Hideaki IshikawaOsamu AbeAiichi Uehara
    • F02B1/04F02D35/00F02D41/00F02D41/04F02D41/10F02D41/14F02D41/22
    • F02D41/10F02D35/00F02D41/1481F02B1/04
    • An in-engine deposit detection apparatus for an engine control system is disclosed, comprising a sensor for detecting the output air-fuel ratio of the exhaust gas, a device for controlling the fuel supply amount according to the output air-fuel ratio from the sensor, acceleration detector for detecting a time point when an acceleration command is given the engine, a device for measuring a value based on the time length from a command time point detected by the acceleration detector to a time point that the sensor detects the shift of the output air-fuel ratio to rich side, a device for giving a reference value defining a limit of a normal range of the measurement obtained on the basis of the time length from the command time point detected by the acceleration detection means to the time point when the sensor detects that the output air-fuel ratio has shifted to rich side, and a device for comparing the measurement from the measuring means with a reference and deciding that there exists a deposit having an adverse effect on the engine control when the measurement deviates from the normal range defined by the reference value.
    • 公开了一种用于发动机控制系统的发动机内沉积检测装置,包括用于检测排气的输出空燃比的传感器,用于根据来自传感器的输出空燃比控制燃料供给量的装置 用于检测加速度指令被赋予发动机的时间点的加速度检测器,用于根据由加速度检测器检测到的指令时间点的时间长度来测量值的装置,传感器检测到 输出空燃比到丰富侧的装置,用于给出基于从由加速度检测装置检测的命令时间点的时间长度获得的测量的正常范围的限制的参考值的装置, 传感器检测到输出空燃比已经向富侧转移,并且将用于将来自测量装置的测量与参考进行比较并且确定存在的设备 当测量偏离由参考值限定的正常范围时,对发动机控制具有不利影响的沉积物。