| 摘要 |
In adaptive cruise speed controlling apparatus and method for an automotive vehicle, a target vehicular velocity is set in such a way that an addition value of a difference between a target inter-vehicle distance from the vehicle to a preceding vehicle, the preceding vehicle running ahead of the vehicle on the same traffic lane, and an actual inter-vehicle distance thereof multiplied by a first gain and a relative velocity between the vehicle and the preceding vehicle multiplied by a second gain is included in the set vehicular velocity and the first and second gains are set to control a vehicular driving force to make the inter-vehicle distance substantially equal to the target inter-vehicle distance and to converge the inter-vehicle distance into the target inter-vehicle distance within a predetermined small overshoot crossing the target inter-vehicle distance when a size of an external form of the preceding vehicle is larger than a predetermined size.
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