Method for activating a parking brake of a motor vehicle, and system for controlling a parking brake of a motor vehicle

1. A method for activating a parking brake of a motor vehicle, comprising:

identifying that the motor vehicle is at a standstill and/or an ignition is switched off;

activating the parking brake automatically when the motor vehicle is at the standstill or the ignition is switched off, wherein a current situation of the motor vehicle and/or an environment is detected subsequent to the automatic activation of the parking brake, and

that said current situation is compared to stored situations of the motor vehicle and/or the environment, for which a rolling capability of the motor vehicle at a standstill or with the ignition switched off has been designated, and

wherein the current situation of the motor vehicle and/or the environment is detected based on data obtained from environmental sensors.

2. The method according to claim 1 , wherein if the detected current situation of the motor vehicle and/or the environment corresponds to a stored situation of the motor vehicle and/or the environment that requires the rolling capability of the motor vehicle a signal is sent to the vehicle operator, indicating that the parking brake is to be deactivated.

3. The method according to claim 1 , wherein if the detected current situation of the motor vehicle and/or the environment corresponds to a stored situation of the motor vehicle and/or the environment that requires the rolling capability of the motor vehicle the parking brake is deactivated automatically.

4. The method according to claim 1 , wherein the current situation of the motor vehicle and/or the environment is detected based on data obtained from a GPS and/or a Car2X.

5. The method according to claim 3 , wherein the environmental sensor data are provided by a camera present in the motor vehicle and/or a distance sensor present in the motor vehicle.

6. The method according to claim 2 , wherein the vehicle operator is notified of the deactivation of the parking brake via a visual and/or acoustic signal.

7. The method according to claim 2 , wherein if the detected current situation of the motor vehicle and/or the environment corresponds to a stored situation of the motor vehicle and/or the environment that requires the rolling capability of the motor vehicle the parking brake is deactivated automatically.

8. The method according to claim 2 , wherein the current situation of the motor vehicle and/or the environment is detected based on data obtained from a GPS and/or a Car2X.

9. The method according to claim 6 , wherein if the detected current situation of the motor vehicle and/or the environment corresponds to a stored situation of the motor vehicle and/or the environment that requires the rolling capability of the motor vehicle the parking brake is deactivated automatically.

10. The method according to claim 6 , wherein the current situation of the motor vehicle and/or the environment is detected based on data obtained from a GPS and/or a Car2X.

11. A system for controlling a parking brake of a motor vehicle, comprising:

use of a controller device, which activates the parking brake when said vehicle is at a standstill and/or an ignition is switched off, wherein, subsequent to the activation of the parking brake, a detected current situation of the motor vehicle and/or an environment is provided to the controller device as an additional input value, and in that the controller device is set up to execute a comparison between the detected current situation of the motor vehicle and/or the environment and reference situations stored in the controller device that require a rolling capability of the motor vehicle when the vehicle is at the standstill and/or the ignition is switched off, wherein the current situation of the motor vehicle and/or the environment is detected based on data obtained from environmental sensors.