| 摘要 |
A tracking running control apparatus determines a failure-predicted segment where distance measurement using a laser radar is predicted to undergo a failure. Upon reaching the failure-predicted segment, a distance measurement device used in tracking running control is changed from the distance measurement device using the laser radar to a distance measurement device using a GPS receiver. Before the change of the distance measurement devices, a target inter-vehicle distance is gradually changed to a GPS-utilized target inter-vehicle distance through changing a vehicle speed with an acceleration equal to or less than a predetermined value. Under the configuration, it is possible to suppress annoyance for a driver of the vehicle because of the change of the target inter-vehicle distances accompanying the change of the distance measurement devices.
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