1977-02-01

MICROPROCESSORS PERFORM ENGINE CONTROL FUNCTIONS 770005

An overview of Digital Engine Controls is presented in light of the various phases required to develop an engine control microcomputer system. Topics include breadboarding techniques, vehicle mounted hardware, preproduction circuit sets, custom LSI circuit development and advanced integration.A brief review of depletion mode NMOS technology is presented along with details of a suitable family of 16 bit microprocessors, memories, and digital/analog input/output functions that can be implemented with LSI IC's to perform real time engine control.Finally, a development time table is presented which highlights program milestones in a two year development cycle.

SAE MOBILUS

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