Excavating
Patent
1984-05-29
1986-10-21
Fleming, Michael R.
Excavating
371 15, 371 67, G06F 1100
Patent
active
046189548
ABSTRACT:
A method of detecting abnormalities through fault diagnosis applied to at least one input unit or output unit by an electronic control unit to which the input unit or output unit is connected. The method comprises the steps of subjecting the input unit or output unit to fault diagnosis, storing information, which is indicative of abnormality, in a first storage area of the electronic control unit when the abnormality is detected as the result of the diagnosis, storing information, which is indicative of the abnormality, in a second storage area of the electronic control unit when the abnormality is detected as the result of subjecting the input or output unit to fault diagnosis again, and rendering a decision to the effect that the input unit or output unit which has undergone the fault detection operation is abnormal when it is determined that the contents stored in the first and second storage areas are identical.
REFERENCES:
patent: 4360915 (1982-11-01), Sindelar
patent: 4360917 (1982-11-01), Sindelar et al.
patent: 4429391 (1984-01-01), Lee
patent: 4477901 (1984-10-01), Braband et al.
patent: 4499581 (1985-02-01), Miazga
patent: 4541090 (1985-09-01), Shiragasawa
Kiuchi Takeo
Otobe Yutaka
Fleming Michael R.
Honda Giken Kogyo Kabushiki Kaisha
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