Abstract: An RFID antenna device (10) for emitting and/or receiving circularly polarised electromagnetic radiation, comprising a radiator unit (12) which has a radiator network (14) with multiple at least partially curved radiator portions (16) and an auxiliary antenna (20) which is galvanically isolated from the radiator network (14) and is inductively or capacitively coupled to the radiator network (14), a supply network unit (22) having a power division portion (26) with a device port and having at least one delay portion (28) which is electrically conductively connected to the power division portion (26) and is electrically conductively connected to the radiator portions (16), wherein the auxiliary antenna (20) is centrally located between the radiator portions (16). Further, an RFID sensor device comprising such an RFID antenna device (10).

Abstract: A battery system (10) for use on a vehicle electrical system (50) of a motor vehicle, comprising a negative pole (21), a positive pole (22), a battery module (5) and a switching unit (60) that has at least one actuatable switch and a current sensor (65) for measuring a battery current (IB) flowing through the battery system (10) is disclosed. The switching unit (60) is operable in a safety mode in which the at least one switch and the current sensor (65) interact such that the battery current (IB) is limited to a prescribed maximum value or is interrupted for a prescribed maximum period of time if the battery current (IB) exceeds a prescribed limit value and hence starting of the motor vehicle is prevented.

Abstract: A vehicle assistance system comprising a computer and a client device. The computer is configured to receive an identification reference and a current position of the first vehicle, provide a route of the first vehicle based on the identification reference and the current position of the first vehicle, receiving an identification reference and current position of a second vehicle, providing a route of the second vehicle based on the identification reference and the current position of the second vehicle, detect an expected location where the route of the first and second vehicle intersect or overlap, detect an expected time when the first and second vehicle intersect at the expected location, generate adaptation data based on the expected location and the expected time, the adaptation data representing an adaptation of a route parameter of the route of the first or second vehicle, sending the adaptation data to the client device.

Abstract: A battery system (10) for use on a vehicle electrical system (50) of a motor vehicle, comprising a negative pole (21), a positive pole (22), a battery module (5) and a switching unit (60) that has at least one actuatable switch and a current sensor (65) for measuring a battery current (IB) flowing through the battery system (10) is disclosed. The switching unit (60) is operable in a safety mode in which the at least one switch and the current sensor (65) interact such that the battery current (IB) is limited to a prescribed maximum value or is interrupted for a prescribed maximum period of time if the battery current (IB) exceeds a prescribed limit value and hence starting of the motor vehicle is prevented.