The overall control system has now operated satisfactorily in the test vehicle for some twelve months, during which time the development action has concentrated on the assessment of various gear shift and gear scheduling strategies. Prior to this period, the commissioning of the specially constructed electronic units provided valuable experience in the debugging of combined microprocessor software and electronic hardware interactions. In some instances the development problems were due to the general purpose nature of the system. For example, the power supply current draw of up to 13 amps is not representative of the situation which would prevail in a production control module. In other instances, such as the drive circuits for the rotary valve stepper motor, the development issues were largely fundamental to that type of drive.
A 5-speed microprocessor controlled economy transmission
Ein mikroprozessorgesteuertes 5-Stufen Kraftuebertragungssystem fuer Kraftfahrzeuge
4th Int. Conf. on Automotive Electronics ; 229 ; 32-38
1983
7 Seiten, 4 Bilder, 1 Quelle
Conference paper
English
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