Abstract: A method for operating a parking assistance system for a vehicle is disclosed. The parking assistance system is configured to learn a manually traveled trajectory in a learning mode, and to automatically retrace the learned trajectory with the vehicle in a retracing mode. The learning mode includes receiving an inclination angle sensor signal from a sensor unit of the vehicle, ascertaining a curb at a specific position along the trajectory depending on the received inclination angle sensor signal. The retracing mode includes receiving an environmental sensor signal from an environment sensor unit of the vehicle, ascertaining the position of the obstacle on the learned trajectory depending on the received environmental sensor signal, and performing the retracing according to a first or second rule set depending on a comparison of the ascertained position and the position determined in the learning mode.

Abstract: A method for operating a parking assistance system for a parking facility is disclosed. The parking facility provides in a predetermined area several parking spaces for autonomously driving vehicles and includes a handover area for handing over a vehicle from a user to the parking assistance system or vice versa. The method includes receiving a request for the use of the parking facility in a specific time interval from the user of the vehicle. The request includes at least one handover time. The method also includes determining a first expected utilization of the parking facility at the handover time as a function of a number of utilization parameters, comparing the determined first expected utilization with a particular utilization threshold value, determining an alternate handover time, and transmitting a message including the alternate handover time to the user.

Abstract: A portable parking assistance system is disclosed. The system is suitable for being set up and dismantled at different locations and is designed, when set up at a particular location, to control one or more vehicles within a predetermined region of the particular location. The system includes one or more sensors which are arranged in the predetermined ration. Each of the sensors is designed to detect vehicles located in a respective specific detection range of the predetermined region and to wirelessly transmit a corresponding sensor signal. The parking assistance system also includes a control device which is designed to receive the sensor signals from the sensors, to determine a respective position of the vehicles on the basis of the received sensor signals, and control each vehicle on the basis of the determined positions of the vehicles and a specified digital map of the predetermined region.

Abstract: The invention relates to a method for producing a drivable region (6) for an at least semi-autonomously operated motor vehicle (1), comprising the steps of: —specifying a drivable trajectory (10), which is formed by a trajectory point sequence (16); —specifying a first boundary (11), which is in the form of a first boundary point sequence (16), for a travel envelope (13), the first boundary having a first lateral distance (A1) from the drivable trajectory (10) and being formed on a first side of the drivable trajectory (10); —specifying a second boundary (12), which is in the form of a second boundary point sequence (17), for the travel envelope (13), the second boundary having a second lateral distance (A2) from the drivable 10 trajectory (10) and being formed on a second side of the drivable trajectory (10); and —producing the drivable region (6) by means of the drivable trajectory (10), the first boundary (11) and the second boundary (12).

Abstract: A method for determining a replacement trajectory for a vehicle operated in an autonomous driving mode is disclosed. The method involves receiving a predefined trajectory with a first section and a second section that are linked to one another at a travel direction turning point, wherein a travel direction of the first section is different from that of the second section, receiving a sensor signal indicative of surroundings of the vehicle, detecting an obstacle in the surroundings on the basis of the received sensor signal, calculating at least one collision point on the predefined trajectory at which a collision occurs between the vehicle and the obstacle, and ascertaining the replacement trajectory based on the at least one calculated collision point. The replacement trajectory connects a starting point, located before the collision point, to an end point on the predefined trajectory, located after the collision point, while avoiding the collision.

Abstract: One or more all-distances sketches are generated for nodes in a graph. An all-distances sketch for a node includes a subset of the nodes of the graph, and a shortest distance between the node and each of the nodes in the subset of nodes. The generated all-distances sketches are used to estimate the closeness similarity of nodes. The estimated closeness similarity can be used for targeted advertising or for content item recommendation, for example.

Abstract: One or more all-distances sketches are generated for nodes in a graph. An all-distances sketch for a node includes a subset of the nodes of the graph, and a shortest distance between the node and each of the nodes in the subset of nodes. The generated all-distances sketches are used to estimate the closeness similarity of nodes. The estimated closeness similarity can be used for targeted advertising or for content item recommendation, for example.