Misfire-detecting system for internal combustion engines
    1.
    发明授权
    Misfire-detecting system for internal combustion engines 失效
    内燃机失火检测系统

    公开(公告)号:US5493227A

    公开(公告)日:1996-02-20

    申请号:US360935

    申请日:1994-12-21

    摘要: A misfire-detecting system for an internal combustion engine detects occurrence of a misfire in the engine, based on voltage between both ends of a spark plug assumed when sparking discharge takes place at the spark plug. A diode is arranged in an ignition secondary circuit of the engine, for checking reverse current flowing in the circuit in a direction reverse to the direction of flow of current occurring when spark ignition takes place at the spark plug. An ECU detects reverse current flowing in the ignition secondary circuit, and detects an abnormality of the diode, based on the detected reverse current.

    摘要翻译: 用于内燃机的失火检测系统基于在火花塞处发生火花放电时假定的火花塞的两端之间的电压来检测发动机中发生失火的发生。 在发动机的点火二次回路中设置二极管,用于检查在与火花塞处发生火花点火时发生的电流的流动方向相反的电路中流动的反向电流。 ECU检测在点火二次回路中流动的反向电流,并且基于检测到的反向电流来检测二极管的异常。