Patent ID: 8311719
Filing Date: 2012-11-13
Classification: B60W

Abstract:
1. A vehicle operation diagnosis device that diagnoses a driver's vehicle operation in a vehicle that is provided with an inter-vehicular distance control system that, in a case where an inter-vehicular distance between the driver's own vehicle and a vehicle ahead that is moving forward ahead of the driver's own vehicle is within a specified distance, controls the inter-vehicular distance between the driver's own vehicle and the vehicle ahead by performing deceleration control of the driver's own vehicle, the vehicle operation diagnosis device comprising: a processor; a first driving distance acquisition unit that acquires a first driving distance when the driver's own vehicle has traveled in a state in which the deceleration control by the inter-vehicular distance control system was in operation; a second driving distance acquisition unit that acquires a second driving distance when the driver's own vehicle has traveled in a state in which the deceleration control by the inter-vehicular distance control system was in operation based on the inter-vehicular distance between the driver's own vehicle and the vehicle ahead being within the specified distance in accordance with a factor that is based on the vehicle ahead; a ratio computation unit that computes a ratio of the difference between the first driving distance and the second driving distance to a driving distance that the driver's own vehicle has traveled at a predetermined speed or more; and a vehicle operation diagnosis unit that diagnoses, via the processor, the driver's vehicle operation based on the ratio computed by the ratio computation unit.