| 摘要 |
PROBLEM TO BE SOLVED: To avoid an inconvenience by a miss-detection under a high vibration environment. SOLUTION: The engine ECU1 which is the electronic device foe an automobile is arranged on an engine room or the position to which the vibration of the engine is directly applied. A printed circuit board 3 is arranged inside a frame body 2 and electronic parts for constituting ECU 1 also a G sensor 13 are mounted on the printed circuit board 3. When the signal from the G sensor 13 for detecting the engine vibration is taken in CPU 4 and it is judged that the signal stays under the vibration of a prescribed range or more, an abnormal detection treatment is prohobitted.
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