To provide a drive support device capable of appropriately supporting drive even when disturbance occurs.
An ECU 6 of a drive support device 1 comprises: a position/speed information acquisition part 8 for acquiring information of a speed of a present vehicle, a relative distance and a relative speed or the like between the present vehicle and a preceding vehicle; a hazard sense index calculation part 9 for calculating PRE of a driver of the present vehicle to the preceding vehicle on the basis of the information; a hazard sense index fluctuation amount calculation part 11 for calculating a PRE fluctuation amount indicating time sequential data of the PRE of the driver; a forgetting parameter determination part 12 for determining a forgetting parameter on the basis of a change rate of the PRE fluctuation amount; a hazard prediction part 13 for predicting the hazard of the present vehicle to the preceding vehicle using the forgetting parameter; an operation timing calculation part 14 for calculating brake operation timing and handle operation timing of the driver corresponding to a hazard prediction result; and a drive support part 15 for executing control so as to issue an alarm by an alarm 7 when the driver does not operate a brake or a handle at the required timing.
Yoshiki Kuroki
Hikaru Suzuki
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