A Microcomputer-Based System for Electronic Engine Control Unit Development

Making full use of microcomputers, a Universal Control Unit (UCU), Data Acquisition Unit (DAU), and Engine Simulation Unit (ESU), have been developed for an engine control development system. The UCU has been designed to perform many types of engine control. The DAU is employed to sample various data and to change the control program and characteristics data. Both units can be mounted within an automobile if necessary. The ESU simulates engine performance. The system consisting of a commercially available program design aid and personal computer, as well as these units, facilitates evaluating hardware and software of various control units, and efficiently reduces development time and cost.