Method and a device for generating a dynamic speed profile of a motor vehicle

An apparatus for generating a dynamic speed profile of a motor vehicle which is suitable for simulating vehicle operation on a on a test computer in a model-based manner, comprising:

• a processor, the processor configured for:
• determining a route-based static speed profile for a route resolved into route segments based on information from a digital map, wherein the route-based static speed profile is raw data determined in the digital map on the basis of the route, and wherein the route is previously traveled by a motor vehicle or is established by a user using the digital map;
• determining a route-based dynamized speed profile on the basis of the route-based static speed profile, wherein the route-based dynamized speed profile factors in a defined maximum target deceleration to reach speed minima of the route-based static speed profile to achieve a steady progression of a speed in the route-based dynamized speed profile based on the raw data of the route-based static speed profile;
• determining the dynamic speed profile, resolved into time increments, on the basis of the route-based dynamized speed profile, wherein a speed of the dynamic speed profile is calculated time increment by time increment from a starting point of the route from an applied acceleration determined in each preceding time increment, wherein the applied acceleration is determined based on a speed dictated by the route-based dynamized speed profile in a route segment corresponding to the respective preceding time increment and an applied speed in the respective preceding time increment;
• and
• controlling the speed of the motor vehicle during the simulated vehicle operation on the test computer in the model-based manner based on the dynamic speed profile,
• wherein the amount of an acceleration value difference in one time increment of the time increments to an acceleration value in a preceding time increment of the time increments is less than a threshold value, wherein the threshold value is determined as a function of the driving physics, the motor vehicle, and/or a driver.

A method for generating a dynamic speed profile of a motor vehicle which is suitable for simulating vehicle operation on a test bench, comprising:

• determining a route-based static speed profile for a route resolved into route segments based on information from a digital map;
• determining a route-based dynamized speed profile on the basis of the route-based static speed profile, wherein the route-based dynamized speed profile factors in a defined target deceleration to reach speed minima of the route-based static speed profile;
• determining the dynamic speed profile, resolved into time increments, on the basis of the route-based dynamized speed profile, wherein a speed of the dynamic speed profile is calculated time increment by time increment from a starting point of the route from an applied acceleration is determined in each preceding time increment, wherein the applied acceleration is determined based on a speed dictated by the route-based dynamized speed profile in a route segment corresponding to the respective preceding time increment and an applied speed in the respective preceding time increment;
• and
• running the dynamic speed profile on the test bench,
• wherein each curve of the route is assigned a maximum cornering speed for the route-based static speed profile or the route-based dynamized speed profile on the basis of the following parameters:
• a respective curve radius;
• a respective curvature;
• a driver-specific parameter;
• and
• a maximum lateral acceleration.