Electronic control unit

Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability

Reexamination Certificate

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Details

C714S011000, C714S018000, C714S048000, C714S049000, C701S001000, C701S036000

Reexamination Certificate

active

10788439

ABSTRACT:
An electronic control unit includes a serial communication circuit capable of easily confirming presence or absence of communication error while regular transmission/regular report between master station and sub station are performed timely. First and second control circuit sections200a(master station) and200b(substation) communicate mutually via series-parallel converters117, 127. The master station includes regular transmission device201and irregular transmission device211. The substation includes regular report device221, confirmation reply device205and report reply device215relative to transmission data from the master station, and unprocessed data table204. The confirmation reply device205and report reply device215confirm whether or not downstream communication from the master station to sub station is normal. When any error is present in regular report data through upstream communication, the error is confirmed on the fact the irregular transmission device211makes retransmission readout request.

REFERENCES:
patent: 5812880 (1998-09-01), Goto et al.
patent: 5966305 (1999-10-01), Watari et al.
patent: 6678586 (2004-01-01), Nakamoto et al.
patent: 2002/0035650 (2002-03-01), Nakamoto et al.
patent: 2002/0040261 (2002-04-01), Nakamoto et al.
patent: 09-162814 (1997-06-01), None
patent: 2000-267948 (2000-09-01), None
patent: 2002-108835 (2002-04-01), None
patent: 2002-235598 (2002-08-01), None
patent: 2002-333901 (2002-11-01), None

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