Abstract: Some embodiments of the invention include a vehicle control system having: two GNSS receivers positioned fixedly in a known relationship with respect to one another on a vehicle, for receiving signals from navigation satellites, a computer unit for using the signals to form direction vectors, and generating instructions for steering the vehicle as a function of the direction vectors, wherein at least one retro-reflector is arranged in a predefined position with respect to the GNSS receivers on the vehicle, a geodetic measuring device is positioned in an immovable fashion at a known reference position in order to determine exact absolute positions of the retro-reflector, wherein the measuring device has a transmitter for transmitting the exact absolute positions to a receiver of the computer unit, and the computer unit is also designed to generate the instructions as a function of the exact absolute positions.

Abstract: The invention relates to a method for aligning tracks of a roadwork machine, characterized by using a track alignment detection unit that is attached to a first track unit for allowing detection of an orientation of the first track unit, and frame orientation detection means that are attached to the machine frame for allowing detection of an orientation of the machine frame, the method comprising determining an initial orientation of the machine frame, and determining an initial orientation of the first track unit, determining whether a difference between a most recently determined orientation of the machine frame and a most recently determined orientation of the first track unit is within a predefined threshold value, initializing a pivoting of the first track unit, determining a changed orientation of the first track unit after the pivoting, and determining an orientation of the machine frame after the pivoting.

Abstract: Some embodiments of the invention include a vehicle control system having: two GNSS receivers positioned fixedly in a known relationship with respect to one another on a vehicle, for receiving signals from navigation satellites, a computer unit for using the signals to form direction vectors, and generating instructions for steering the vehicle as a function of the direction vectors, wherein at least one retro-reflector is arranged in a predefined position with respect to the GNSS receivers on the vehicle, a geodetic measuring device is positioned in an immovable fashion at a known reference position in order to determine exact absolute positions of the retro-reflector, wherein the measuring device has a transmitter for transmitting the exact absolute positions to a receiver of the computer unit, and the computer unit is also designed to generate the instructions as a function of the exact absolute positions.

Abstract: The invention relates to a method for aligning tracks of a roadwork machine, characterized by using a track alignment detection unit that is attached to a first track unit for allowing detection of an orientation of the first track unit, and frame orientation detection means that are attached to the machine frame for allowing detection of an orientation of the machine frame, the method comprising determining an initial orientation of the machine frame, and determining an initial orientation of the first track unit, determining whether a difference between a most recently determined orientation of the machine frame and a most recently determined orientation of the first track unit is within a predefined threshold value, initializing a pivoting of the first track unit, determining a changed orientation of the first track unit after the pivoting, and determining an orientation of the machine frame after the pivoting.

Abstract: The use of complex coacervates of two or more biopolymer materials, preferably at least one of these being gelatin, as a fat-replacing ingredient. The complex coacervates may be used in foods and cosmetics and preferably are of substantially spherical or elliptical shape and have an average D.sub.3,2 particle size, of from 0.2 to 100 microns.