SYSTEM AND METHOD FOR A DRIVER ASSISTANCE FUNCTION OF A VEHICLE

The invention relates to a computer implemented method for determining a most probable path (4) of a vehicle (1) for a driver assistance function of the vehicle (1), which driver assistance function requires information of a road ahead of the vehicle (1). The method comprises: receiving map attribute data (5) from of a map unit comprising information of at least one map having at least one map attribute, and fleet sensor data (6), wherein a fleet represents a number of fleet vehicles (10), wherein each fleet vehicle comprises at least one sensor for acquiring position data and/or motion data which for each fleet vehicle (10) are/is transferred to and stored in a fleet sensor data unit; training a machine learning algorithm (14a - 14c) by inputting training data (8b, 8c, 8d) comprising at least part of both the map attribute data (5) and the fleet sensor data (6), wherein the training data (8b - 8d) is related to an intersection category depending on a predetermined number of road segments (2, 2a - 2f) joining at an intersection (5a - 5i); providing to the machine learning algorithm (14a - 14c) input data (9b - 9j) comprising at least one data attribute (15a - 15g, 16a - 16g, 17a - 17g, 18a - 18c) of a road segment (2, 2a - 2f) joining at the intersection (5a - 5i) of the intersection category from which road segment (2, 2a - 2f) the vehicle (1) is approaching the intersection (5a - 5i); generating in response to receiving the input data (9b - 9j) output data of the machine learning algorithm (14a - 14c) comprising a probability (11d - 11n) for a turn at the intersection (5a - 5i) of the vehicle (1) for each road segment (2, 2a - 2f) joining at the intersection (5a - 5i), and; determining, based on the probability (11d - 11n) for a turn at the intersection (5a - 5i) of the vehicle (1) for each road segment (2, 2a - 2f) joining at the intersection (5a - 5i), a most probable turn (12b - 12d) at the intersection (5a - 5i) of the vehicle (1), and, based on the most probable turn (12b - 12d) of the intersection (5a - 5i) of the vehicle (1), the most probable path (4) of the vehicle. Other aspects of the invention are a software program realizing the method and a system for determining the most probable path of the vehicle for the driver assistance function of the vehicle.