Method and apparatus to monitor a mass airflow metering device in an internal combustion engine
    10.
    发明授权
    Method and apparatus to monitor a mass airflow metering device in an internal combustion engine 有权
    监测内燃机质量气流计量装置的方法和装置

    公开(公告)号:US08224559B2

    公开(公告)日:2012-07-17

    申请号:US12691056

    申请日:2010-01-21

    IPC分类号: F02M51/00 G06G7/70

    摘要: A method for operating an internal combustion engine configured to operate in a controlled auto-ignition combustion mode and equipped with a mass airflow metering device includes monitoring an engine combustion state, monitoring states of engine operating parameters, calculating a nominal intake air mass flowrate corresponding to the states of the engine operating parameters, estimating an intake air mass flowrate corresponding to the nominal intake air mass flowrate and the engine combustion state, measuring intake air mass flowrate with the mass airflow metering device, comparing the estimated and measured intake air mass flowrates, and detecting a fault related to the mass airflow metering device when a difference between the estimated and measured intake air mass flowrates exceeds a predetermined threshold.

    摘要翻译: 一种用于操作内燃机的方法,其构造成在受控自动点火燃烧模式下操作并配备有质量气流计量装置,包括监测发动机燃烧状态,监测发动机运行参数的状态,计算对应于发动机运行参数的标称进气质量流量 发动机工作参数的状态,估计对应于标称进气质量流量和发动机燃烧状态的进气质量流量,用质量气流计量装置测量进气质量流量,比较估计和测量的进气质量流量, 并且当所述估计和测量的进气质量流量之间的差异超过预定阈值时,检测与所述质量空气流量计量装置相关的故障。