| 摘要 |
<p>A method and apparatus are disclosed for monitoring similar machine components loaded in parallel to produce diagnostic trend information used to predict component degradation or failure. Split exhaust manifolds (18, 20) are each provided with a sensor (26) to produce signals indicating exhaust temperature. A diagnostic monitor (30), which includes a trending module (32), receives the temperatures and periodically determines a difference between the temperatures, and averages the differential values over a predefined trend period to generate trend values. A plot of the trend based on the trend values is generated and monitored for changes which indicate the possible degradation of one of the components. The data monitoring and trending can be used with both stationary and mobile machines and may be performed either onboard or remotely from the machine (36, 37).</p> |
