Method and system for determining the parameters of a model for longitudinally guiding and for determining a longitudinal guide for a vehicle

To determine parameters (A, A) of a model of a predicted longitudinal guidance of a vehicle (10), a section of a driving route of the vehicle (10) is detected with the aid of sensors (3) of the vehicle (10), an actual speed-time profile (31-33) of the vehicle (10) when traveling through the section is detected, and the parameters (A, A) are determined as a function of the actual speed-time profile (31-33). In this case, a predetermined section type and a reference speed-time profile (21; 22) are assigned to the section, which is dependent on the section type. With the parameters (A, A), a predicted speed-time profile (23) can be determined on the basis of the reference speed-time profile (21; 22). [0002] To determine a predicted longitudinal guidance for a vehicle (10), the following steps are carried out: Determining a driving route of the vehicle (10), wherein the driving route extends from a current position of the vehicle (10) to a target position of the driving route. Dividing the driving route into sections (41-45), wherein each of the sections (41-45) is assigned to a predetermined section type, wherein each section (41-45) is assigned a reference speed-time profile (21; 22), which is dependent on the section type of the respective section (41-45). Determining a predicted speed-time profile (23) for each of the sections (41-45), in that the reference speed-time profile (21; 22) of the respective section (41-45) is applied with parameters (Ax, Ax-y), which are dependent on a current driver, in order to determine the predicted speed-time profile (23) of the respective section (41-45). Determining the longitudinal guidance by means of the predicted speed-time profiles (23) of the sections (41-45) of the driving route.