1989-08-01

A New Engine Analysis System for Sensor and Actuator Related Problems 891726

A new diagnostic system for the analysis of sensors and actuators accessed by the electronic control unit of internal combustion engines has been developed. The system consists of two major parts: 1) a microprocessor controlled interface via which relevant data can be accessed in a wide variety of vehicle types and models, and 2) a software package running on IBM AT's and compatibles to collect, record, and display the data, as well as to transmit the recorded data to other AT's via a standard phone line.The system proves to be a valuable tool for the analysts of faults in the electronic control module and especially the sensors and actuators. Due to its transparent user interface and its clarity in displaying relevant information, the system also has great potential in the field of training of automotive technicians.In this paper we present the major hardware and software components of the system as well as some of the design considerations taken into account during the development stage. We also give an example showing its usefulness in practice.

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