| 摘要 |
An in-vehicle electronic control apparatus having a monitoring control circuit is configured in such a way that a monitoring control circuit unit transmits question information from a logic circuit unit; a main control circuit transmits answer information generated by a microprocessor; the monitoring control circuit unit applies an addition and subtraction correction to the value of a first present-value memory by use of a first and fourth variation values Delta1 and Delta4, in response to the result of a comparison between correct-solution information stored in a data memory and the answer information; and when the accumulated present value exceeds an abnormality determination threshold value Nj, the monitoring control circuit unit generates a first abnormality detection signal so as to initialize and restart the microprocessor, and variably sets the abnormality determination threshold value Nj or an abnormality determination time, based on selection information obtained through a printed patter
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