METHOD AND DEVICE FOR ASCERTAINING A MINIMUM VALUE FOR THE FRICTION COEFFICIENT OF A ROAD SEGMENT

摘要

A method for ascertaining a minimum value for the friction coefficient of a road segment, in which at least one movement variable of a second vehicle, which characterizes the vehicle movement, is ascertained with the aid of a surroundings sensor system contained in a first vehicle; a minimum value for the friction coefficient of the road segment traveled by the second vehicle is ascertained on the basis of the at least one movement variable of the second vehicle; the spatial position of the first vehicle is ascertained; the relative position of the second vehicle with respect to the first vehicle is ascertained with the aid of the surroundings sensor system; the spatial position of the second vehicle is ascertained with the aid of the spatial position and the relative position of the first vehicle; the spatial position of the second vehicle and the minimum value are stored in a database.

主权项

1. A method for ascertaining a minimum value for a friction coefficient of a road segment, comprising:
ascertaining, with the aid of a surroundings sensor system contained in a first vehicle, at least one movement variable of a second vehicle which characterizes a vehicle movement of the second vehicle; ascertaining on the basis of the at least one movement variable of the second vehicle a minimum value for the friction coefficient of the road segment traveled by the second vehicle; ascertaining a spatial position of the first vehicle; ascertaining a relative position of the second vehicle with respect to the first vehicle with the aid of the surroundings sensor system; ascertaining a spatial position of the second vehicle with the aid of the spatial position of the first vehicle and the relative position; and storing in a database the spatial position of the second vehicle and the minimum value.