Method for navigating a vehicle

A method for navigating a vehicle, in which an output signal from a direction unit is used to determine the direction by processing a difference from a value (drift) which is valid for travel in a straight line, wherein the drift is determined by the following steps:

• a) the absolute direction of the vehicle at a first instant is determined using satellites and roads on which the vehicle is depicted, wherein the roads are stored in a database,
• b) the absolute direction of the vehicle at a second instant is determined using satellites and roads on which the vehicle is depicted,wherein the roads are stored in a database, and wherein a predetermined minimum time is observed between the first and the second instant,
• c) a direction difference is formed from the two absolute directions,
• d) the direction changes ascertained by the direction unit are summed to form a direction sum,
• e) a correction variable is calculated using the direction difference and the direction sum, and
• f) a new drift is formed from a previous drift and the correction variable, wherein the new drift is formed from the previous drift plus a quotient of the difference between the direction difference and the direction sum and the period of time between the two instances.