Purge system flow monitor and method
    2.
    发明授权
    Purge system flow monitor and method 失效
    吹扫系统流量监测器和方法

    公开(公告)号:US5651349A

    公开(公告)日:1997-07-29

    申请号:US570219

    申请日:1995-12-11

    CPC分类号: F02M25/0809 F02M25/08

    摘要: A system and method of monitoring the purge flow in an evaporative emission control purge system of a motor vehicle. Signals indicative of engine speed, fuel control and automatic idle speed position are measured and used to determine whether the purge flow system is operating properly. With purge flow activated, the amount of purge flow is increased in accordance with a ramping rate and the measured signals are monitored to determine whether or not a change occurs in any one of the engine speed, fuel control and AIS position signals.

    摘要翻译: 一种在机动车辆的蒸发排放控制清除系统中监测吹扫流量的系统和方法。 测量指示发动机转速,燃料控制和自动怠速位置的信号,并用于确定吹扫流量系统是否正常工作。 随着清洗流量的激活,清洗流量根据斜坡率增加,监测测量信号以确定发动机转速,燃料控制和AIS位置信号中是否发生变化。