It is an attention - revival system for a vehicle, which is capable of producing an alarm to be carried out by presentation of tactile information, while a driver and a feeling of a convincing credible feeling is given as a result of which it is made possible, the attention of the driver to give an efficient and suitable. In the attention - revival system of the present invention, the level of awareness of the driver is estimated and an abnormal behavior (instability) of the vehicle are determined. Then, under the condition that the estimated the driver''s attentiveness lower than a predetermined degree, and said abnormal behavior of the vehicle is sensed, the driver the tactile information presented as an alarm, in order to give the driver''s attention.
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