Automatic design of diagnosis systems with application to an automotive engine

It is highly desirable to systematize and automate the process of designing diagnosis systems. The reason is that in many applications, high diagnosis performance is required, and at the same time, the time-consuming engineer ing work of designing diagnosis systems must be minimized. Here, model-base d diagnosis based on structured hypothesis tests is considered. Principles for evaluating diagnosis systems are developed, and a systematic and automa tic design procedure is proposed. The procedure is successfully applied to the problem of designing a diagnosis system for the air-intake system of an automotive engine. The resulting diagnosis system is then experimentally v alidated using a real engine. (C) 1999 Elsevier Science Ltd. All rights res erved.