Patent ID: 6493625
Filing Date: 2002-12-10
Classification: B60K,B60W,G08G

Abstract:
A method for controlling a speed of a first motor vehicle and a distance of the first motor vehicle to at least one second motor vehicle driving ahead, comprising the steps of:inputting a setpoint trailing distance to the second motor vehicle; determining at least the speed of the first motor vehicle, the distance between the first motor vehicle and the second motor vehicle and the speed of the first motor vehicle relative to the second motor vehicle in accordance with at least one detector; decelerating or accelerating the first motor vehicle as a function of the relative speed in response to the determined distance deviating from the setpoint trailing distance; in response to a target loss of the second motor vehicle from a detection range of the detector, calculating a speed of the second motor vehicle based on the relative speed and the speed of the first motor vehicle determined prior to a time of the target loss and calculating an actual distance; and extrapolating a distance in accordance with a differential unit of time from the speed of the first motor vehicle and the calculated speed of the second motor vehicle.