Patent ID: 6330507
Filing Date: 2001-12-11
Classification: B60K,B60W,G05D

Abstract:
An automatic vehicular velocity control apparatus for an automotive vehicle, comprising:an inter-vehicle distance detector to detect an inter-vehicle distance from the vehicle to a preceding vehicle which is running ahead of the vehicle;a vehicular velocity detector to detect a vehicular velocity of the vehicle;a relative velocity detector to detect a relative velocity of the preceding vehicle to the vehicle;an inter-vehicle distance command value calculator to calculate a command value of the Inter-vehicle distance;a control response characteristic determinator to determine a control response characteristic of an inter-vehicle distance control system the control response characteristic determinator comprising at least one parameter to determine the control response characteristic of the inter-vehicle distance control system the parameter being determined according to at least the detected value of the relative velocity;a vehicular velocity command value calculator to calculate a command value of the vehicular velocity according to a detected value of the vehicular velocity, the detected value of the relative velocity, a first deviation between the command value of the inter-vehicle distance and a detected value thereof, a second deviation between a target value of the relative velocity and the detected value thereof, a first gain to be multiplied by the first deviation, and a second gain to be multiplied by the second deviation; anda vehicular velocity control section to control at least one of a driving force of the vehicle, a braking force of the vehicle, and a gear ratio of a vehicular transmission in such a manner that a detected value of the vehicular velocity is made equal to the command value of the vehicular velocity.