DE-102024132699-A1 - Method for operating a driver assistance system for a motor vehicle, corresponding driver assistance system for a motor vehicle and computer program product

Abstract

The invention relates to a method for operating a driver assistance system for a motor vehicle (1), wherein environmental data describing the environment of the motor vehicle (1) are acquired at least temporarily by means of an environment sensing device of the motor vehicle (1). It is provided that, by means of a driver assistance device of the driver assistance system, obstacle data describing obstacles in the environment are determined using the environmental data within the framework of obstacle detection for the purpose of detecting obstacles in the environment, and based on the obstacle data, a driving data set is selected from driving data sets provided by a computing unit (8), and a driving maneuver contained in the selected driving data set is carried out and/or a planned driving maneuver is validated based on the driving maneuver contained in the selected driving data set. The invention further relates to a driver assistance system for a motor vehicle and a computer program product.

Inventors

• Jan David Schneider

Assignees

• AUDI AKTIENGESELLSCHAFT

Dates

Publication Date

20260513

Application Date

20241108

Claims (10)

1. Method for operating a driver assistance system for a motor vehicle (1), wherein environmental data describing the environment of the motor vehicle (1) are acquired at least temporarily by means of an environment detection device of the motor vehicle (1), characterized in that , by means of a driver assistance device of the driver assistance system, using the environment data, obstacle data describing obstacles in the environment are determined for the purpose of obstacle detection, and, based on the obstacle data, a driving operation data set is selected from driving operation data sets provided by a computing device (8), and a driving maneuver contained in the selected driving operation data set is carried out and/or a planned driving maneuver is validated based on the driving maneuver contained in the selected driving operation data set.
2. Procedure according to Claim 1 , characterized in that the computing device (8) simulates a simulated traffic situation with a simulated motor vehicle and one or more simulated obstacles for each of the driving operation data sets, wherein simulated obstacle data describing the simulated obstacles are stored in the respective driving operation data set.
3. Method according to one of the preceding claims, characterized in that a collision probability for the motor vehicle (1) is determined and, if a threshold is exceeded, a collision risk is detected by the collision probability, wherein the driving maneuver contained in the selected driving operation data set is only carried out when the collision risk is detected, and wherein the collision probability used is a collision probability determined on the basis of the environmental data or a collision probability determined within the framework of the simulation and stored in the driving operation data set.
4. Method according to one of the preceding claims, characterized in that, within the framework of the simulation, a driving maneuver and a risk parameter describing a collision risk of the driving maneuver when carrying out the driving maneuver are determined for each of the simulated traffic situations, and the selection of the driving operation data set is additionally carried out on the basis of the risk parameter.
5. Method according to one of the preceding claims, characterized in that when selecting the driving operation data set for several of the driving operation data sets, a correlation coefficient is determined between the obstacle data determined using the environment data and the simulated obstacle data contained in the driving operation data sets, and the driving operation data set is selected based on the correlation coefficient.
6. Method according to one of the preceding claims, characterized in that during the simulation a simulated environment detection device is simulated and simulated state data of the simulated environment detection device are stored in the driving operation data records, wherein the selection of the driving operation data record from the driving operation data records is additionally carried out on the basis of state data of the environment detection device as well as the simulated state data contained in the driving operation data records.
7. Method according to one of the preceding claims, characterized in that several simulated environment sensing devices are assigned to the simulated environment sensing device, wherein at least one of the simulated environment sensing sensors is at least partially disregarded during the simulation, or wherein the simulated environment sensing sensors are divided into several sensor categories and the simulated environment sensing sensors of at least one of the sensor categories are at least partially disregarded during the simulation.
8. Method according to one of the preceding claims, characterized in that the simulated state data of the simulated environment sensing device are an operational readiness of the simulated environment sensing device and/or environmental conditions in a simulated environment of the simulated motor vehicle.
9. Driver assistance system for a motor vehicle (1), in particular for carrying out the method according to one or more of the preceding claims, wherein the driver assistance system is provided and configured to acquire, at least temporarily, environmental data describing the environment of the motor vehicle (1) by means of an environment detection device of the motor vehicle (1), characterized in that the driver assistance system is also provided and configured to determine, by means of a driver assistance device of the driver assistance system, using the environment data within the framework of obstacle detection for the detection of obstacles in the environment, the obstacle data describing the obstacles, and to derive a driving data set from driving operation data sets provided by a computing device based on the obstacle data. to select and perform a driving maneuver contained in the selected driving operation data set and/or to validate a planned driving maneuver based on the driving maneuver contained in the selected driving operation data set.
10. Computer program product, comprising commands that cause the driver assistance system to Claim 9 the procedure according to one or more of the Claims 1 until 8 executes.

Description

The invention relates to a method for operating a driver assistance system for a motor vehicle, wherein environmental data describing the environment of the motor vehicle are acquired, at least temporarily, by means of an environment sensing device of the motor vehicle. The invention further relates to a driver assistance system for a motor vehicle and a computer program product. For example, printed matter is state of the art. DE 10 2018 210 410 A1 This document describes a driver assistance system with an emergency stop function for a vehicle, wherein the driver assistance system is configured to perform an automated lane change from a first lane to a second lane when the emergency stop function is triggered, wherein the driver assistance system is further configured to determine at least one road characteristic and/or at least one vehicle interior characteristic, and to decide whether to execute the lane change based on the determined at least one road characteristic and/or at least one vehicle interior characteristic. Another driver assistance system is described in the publication. CN 113232655 A known. The object of the invention is to propose a method for operating a driver assistance system for a motor vehicle which has advantages over known methods, in particular enabling a particularly safe operation of the motor vehicle by taking into account numerous different traffic situations when selecting a driving maneuver. According to the invention, this is achieved by a method for operating a driver assistance system for a motor vehicle with the features of claim 1. It is provided that, by means of a driver assistance device of the driver assistance system, obstacle data describing the obstacles are determined using the environmental data within the framework of obstacle detection for the detection of obstacles in the environment, and based on the obstacle data, a driving data set is selected from driving data sets provided by a computing device, and a driving maneuver contained in the selected driving data set is carried out and/or a planned driving maneuver is validated based on the driving maneuver contained in the selected driving data set. Advantageous embodiments with expedient further developments of the invention are specified in the dependent claims. It should be noted that the exemplary embodiments described in the description are not limiting; rather, any variations of the features disclosed in the description, the claims, and the figures are possible. The method serves to operate the driver assistance system. The driver assistance system comprises at least the driver assistance device and the computing unit. The method is carried out at least partially using the driver assistance device and at least partially using the computing unit. The driver assistance device or a control unit of the driver assistance device is preferably a component of the motor vehicle, but can of course also exist separately from it, particularly until the driver assistance device or the control unit is mounted on or in the motor vehicle. The driver assistance system serves, for example, to support a vehicle user in driving the vehicle and/or, at least temporarily, to perform the driving operation itself, which in this case is at least partially autonomous. Partially autonomous driving means that the driver assistance system independently takes over longitudinal and/or lateral control of the vehicle, at least temporarily. Longitudinal guidance refers in particular to setting the vehicle's speed, for example, by appropriately controlling the vehicle's drive system and/or braking system. The drive system serves to propel the vehicle, thus providing the drive torque for propelling the vehicle. To provide the drive torque, the drive system preferably has at least one drive unit, which can be configured as an internal combustion engine or an electric traction motor. The braking system, on the other hand, serves to brake or decelerate the vehicle. It includes, in particular, a service brake, which exerts a braking force on one or more wheels of the vehicle to slow it down. Supporting the user in carrying out driving operations corresponds, for example, to assisted driving according to SAE Level 1. At least partially autonomous driving operations occur in particular within the framework of partial automation according to SAE Level 2, conditional automation according to SAE Level 3, and high automation according to SAE Level 1. SAE Level 4 or full automation according to SAE Level 5. Where autonomous driving is mentioned in this description, it always refers to at least partially autonomous driving as defined above. The vehicle, and in particular its driver assistance system, is equipped with an environmental sensing system that serves to detect the vehicle's surroundings. When the environmental sensing system detects the surroundings, it generates environmental data that describes the vehicle's environment. To detect the sur