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1.前言近年来,随着运输量的不断增长,对大马力发动机的需要也日益高涨。其中突出的一点就是,要求大型化的发动机也要具有良好的性能;另一方面,要求提高发动机的耐久怪’可靠性,降低维修成本的愿望也非常强烈,这些已成为发动机研制工作中最为重要的课题。与此同时,为了能尽早发现发动机在运用过程中的异常情况,以便及时修理防止造成发动机的破损而研制一套控制、监测系统也是必不可少的。对应这一需求,市面上巳开始出现了一些发动机健康诊断服务系统。这些系统都是利用分析机油的手段来进行故障预防诊断的。本文将概要地介绍日本国内外所采用的故障预防诊断系统和日本五十铃公司在研制诊断系统试验中的二、三个实例。
1. Introduction In recent years, the demand for high-horsepower engines has also been on the rise as the volume of traffic increases. One of the salient points is that large-size engines are also required to have good performance; on the other hand, there is also a strong desire to improve the durability and reliability of engines and to reduce the cost of maintenance, which has become the most important factor in engine development The subject. In the meantime, in order to detect abnormalities in engine operation as early as possible and to develop a set of control and monitoring systems to promptly repair and prevent damage to the engine, monitoring systems are also indispensable. Corresponding to this demand, some engine health diagnosis service systems have started to appear on the market. These systems are the use of oil analysis tools for fault diagnosis. This article presents an overview of the two or three examples of failure prevention diagnostic systems used in Japan and abroad and the Japanese Isuzu company in developing diagnostic system tests.