SYSTEM AND METHOD FOR DIAGNOSIS OF ENGINE COMPONENT CONDITION
    3.
    发明申请
    SYSTEM AND METHOD FOR DIAGNOSIS OF ENGINE COMPONENT CONDITION 审中-公开
    用于诊断发动机部件条件的系统和方法

    公开(公告)号:US20120324989A1

    公开(公告)日:2012-12-27

    申请号:US13169817

    申请日:2011-06-27

    IPC分类号: G01M15/08

    CPC分类号: G01M15/08

    摘要: A diagnostic system for an internal combustion engine includes a pressure sensor configured to measure pressure within a combustion cylinder. An electronic controller is configured to receive a pressure signal from the pressure sensor, analyze the pressure signal by at least partially comparing the pressure signal to a predetermined pressure signal, and diagnose a failure of one or more piston ring seal(s), an intake valve, and an exhaust valve of the engine based on a difference between the pressure signal and the predetermined pressure signal.

    摘要翻译: 用于内燃机的诊断系统包括被配置成测量燃烧气缸内的压力的压力传感器。 电子控制器被配置为从压力传感器接收压力信号,通过至少部分地将压力信号与预定压力信号进行比较来分析压力信号,并且诊断一个或多个活塞环密封件,进气口 阀和排气阀,基于压力信号和预定压力信号之间的差。