Patent ID: 8234035
Filing Date: 2012-07-31
Classification: G05B,G06F

Abstract:
1. An in-vehicle electronic control apparatus, having a monitoring control circuit, the in-vehicle electronic control apparatus comprising: a main control circuit unit including: a monitoring control circuit unit including: wherein, under the condition that no communication abnormality is detected in downlink communication information that is transmitted through downlink communication from the main control circuit unit to the monitoring control circuit unit, wherein, when, due to the accumulation of the first and fourth variation values, a present value of the first addition and subtraction tallying unit reaches an abnormal-side limit value, the first abnormality-occurrence determination unit generates a first abnormality detection signal, and a difference between the abnormal-side limit value and the normal-side limit value becomes equal to an abnormality determination threshold value Nj, wherein, with regard to a first setting constant group (Δ wherein the continuous abnormality detection time Te is a time during which the value of the first present-value memory changes from the normal-side limit value to the abnormal-side limit value, in the case where the contents of all the answer information items for the question information items that sequentially occur in a question update cycle Tq are different from those of the correct-solution information items, wherein the multiplication product of the number of occurrences of continuous abnormality obtained by dividing the abnormality determination threshold value Nj by the fourth variation value Δ wherein respective different values are applied to some of the setting constants in the first setting constant group, in accordance with a kind of a vehicle to which the in-vehicle electronic control apparatus is applied, and wherein the occurrence time of the first abnormality detection signal that is generated when the determination of abnormality continues is variably set, based on the selectively applied setting constants.