Method for detecting abnormality of control unit and control uni

Details Method for detecting abnormality of control unit and control uni Method for detecting abnormality of control unit and control uni

1998-05-19

2000-09-19

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

701 34, 701 66, 702176, 702177, G06F 700, G06F 1900

Patent

active

061225746

ABSTRACT:
A method of detecting an abnormality of a control unit arranged to execute a writing process and a reading process of data between a CPU and EEPROM. The method measures a time period of the reading process and informs that an abnormality of a system is generated when the reading process time period becomes greater than a predetermined value.

REFERENCES:
patent: 5525902 (1996-06-01), Nakajima et al.
patent: 5954772 (1999-09-01), Akiyama et al.
patent: 5964813 (1999-10-01), Ishii et al.

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