Abstract: A coil unit for inductively charging a vehicle is provided. The coil unit includes a coil, wherein the coil includes multiple windings of at least two electric lines. The electric lines are connected in parallel. Each of the electric lines has a respective winding part, in which the windings are formed, and an additional part, in which an additional inductor unit having a predefined electric inductance is arranged.

Abstract: A method for the supply of an electrical component with electric power using an inductive charging system having a primary coil unit and a secondary coil unit, where the electrical component is connected on a secondary side corresponding to the secondary coil, includes setting a rough position of the secondary coil unit relative to the primary coil unit to establish an electromagnetic coupling, displacing a primary coil in the primary coil unit relative to a primary ferrite in the primary coil unit in a preferred direction such that an electromagnetic coupling factor of the rough position of the secondary coil unit relative to the primary coil unit is increased, where the preferred direction lies in a plane of a planar basic shape of the primary ferrite, and changing a magnetically active surface area within the primary coil unit in the plane.

Abstract: A method for checking a test secondary unit of an inductive test charging system for charging an electrical energy store, wherein the test charging system comprises the test secondary unit having a test secondary coil and a reference primary unit having a reference primary coil, includes recording a plurality of actual primary unit impedance values of the test charging system at the reference primary coil for a corresponding plurality of test combinations of values of operating parameters of the test charging system. The method also includes comparing the plurality of actual primary unit impedance values with a reference value range for a primary unit impedance.

Abstract: An inductive charging unit for a vehicle includes a trough-shaped base support having a base surface and the base surface has laterally enclosing side walls where the base surface and the side walls form a trough. The charging unit further includes a top surface opposite the base surface and a primary coil for inductive coupling to a secondary coil associated with the vehicle, where the primary coil is disposed in the trough. A filling material is disposed in the trough and surrounds the primary coil so as to fix the primary coil mechanically.

Abstract: A method for checking a test secondary unit of an inductive test charging system for charging an electrical energy store, wherein the test charging system comprises the test secondary unit having a test secondary coil and a reference primary unit having a reference primary coil, includes recording a plurality of actual primary unit impedance values of the test charging system at the reference primary coil for a corresponding plurality of test combinations of values of operating parameters of the test charging system. The method also includes comparing the plurality of actual primary unit impedance values with a reference value range for a primary unit impedance.

Abstract: A method for checking a test secondary unit of an inductive test charging system for charging an electrical energy store, wherein the test charging system comprises the test secondary unit having a test secondary coil and a reference primary unit having a reference primary coil, includes recording a plurality of actual primary unit impedance values of the test charging system at the reference primary coil for a corresponding plurality of test combinations of values of operating parameters of the test charging system. The method also includes comparing the plurality of actual primary unit impedance values with a reference value range for a primary unit impedance.

Abstract: A coil device for a motor vehicle has a housing which has a receiving area, at least one secondary coil which is arranged in the receiving area for inductively transmitting electric energy in order to charge an energy storage unit of the motor vehicle, and at least one ferrite element which is arranged in the housing for conducting at least one magnetic field in order to inductively transmit the electric energy. The ferrite element has at least two ferrite regions that are at least partly mutually spaced by at least one through-opening which is arranged between the ferrite regions and in which a support structure is at least partly arranged that is made of a fiber composite material and has ferrite elements received in the fiber composite material, wherein opposing housing elements of the housing are supported against each other via said support structure.

Abstract: A secondary coil unit for a vehicle has a housing with a cover that can be removed from the housing. The secondary coil unit further has a secondary coil which is arranged in the housing and surrounds a core region. The cover and the housing are designed in such a way that an opening through the secondary coil unit is created when the cover is removed from the housing.

Abstract: A system includes a vehicle and an induction unit external to the vehicle. The induction unit includes a primary coil designed as a primary induction coil, and the vehicle includes a low voltage on-board electrical system having a secondary coil designed as a secondary induction coil. An alternating voltage can be induced in at least one part of the low-voltage on-board electrical system by the electromagnetic coupling of the secondary coil to the primary coil, and at least one component of the low-voltage on-board electrical system can be fed with the induced alternating voltage or with direct voltage via a rectifier.

Abstract: An assistance system for assisting the driver of a motor vehicle when positioning the motor vehicle at a predefined target position is provided. The target position is preferably a charging position for wireless, in particular inductive, charging of the motor vehicle. In order to position the motor vehicle, the longitudinal movement of the vehicle can be controlled manually by one or more operator control elements (e.g., accelerator pedal, brake pedal) which can be actuated by the driver. The assistance system assists the manual longitudinal control during positioning. The assistance system serves to influence the manual longitudinal control. By influencing the manual longitudinal control, the assistance system counteracts, as a function of the respective position information, the longitudinal movement of the vehicle at least for certain relative positions, in order to bring the vehicle to a stop essentially at the target position.

Abstract: An apparatus is provided for protecting high-voltage electrical connections, in particular in vehicles. A fuse for interrupting a line includes a conduction coil, which is designed to have a conduction current on the line flowing through the conduction coil and to thereby generate a magnetic field. Furthermore, the includes a control coil, which is magnetically coupled to the conduction coil, and a circuit breaker, which is designed to interrupt the line depending on a field intensity of the magnetic field. In addition, the fuse includes a control unit, which is designed to determine a control current through the control coil in order to vary the field intensity of the magnetic field, and thus to cause or suppress an interruption of the line by way of the circuit breaker.

Abstract: To provide correction data for determining position, first position data are determined and/or made available to a vehicle depending on an incoming Global Navigation Satellite System (GNSS) signal, the vehicle having a GNSS receiver or a differential GNSS (DGNSS) receiver for receiving the incoming GNSS signal, and the first position data being determined when the vehicle is in a charging position at a predefined charging station. Second position data are also determined and/or made available, the second position data including information which is representative of a global position of the predefined charging station. Correction data is determined depending on the first position data and the second position data. The correction data is made available to at least one further device to determine the position of the at least one further device.

Abstract: A cover device is provided for an electromagnetic coil. The electromagnetic coil is configured for the inductive transmission of energy between the electromagnetic coil and an electromagnetic counter coil. The cover is designed as a housing for the electromagnetic coil. The cover is designed for fastening the cover to an undercarriage of a vehicle. The cover is provided with a plurality of recesses for magnet guide elements, wherein the recesses are designed such that at least one magnet guide element can be inserted into each recess.

Abstract: A method for the supply of an electrical component with electric power using an inductive charging system having a primary coil unit and a secondary coil unit, where the electrical component is connected on a secondary side corresponding to the secondary coil, includes setting a rough position of the secondary coil unit relative to the primary coil unit to establish an electromagnetic coupling, displacing a primary coil in the primary coil unit relative to a primary ferrite in the primary coil unit in a preferred direction such that an electromagnetic coupling factor of the rough position of the secondary coil unit relative to the primary coil unit is increased, where the preferred direction lies in a plane of a planar basic shape of the primary ferrite, and changing a magnetically active surface area within the primary coil unit in the plane.

Abstract: A primary unit for an inductive charging system includes a primary coil, which is configured to generate a magnetic field in response to a coil current through the primary coil; a first inverter, which is coupled to the primary coil via a first capacitor and which is configured to charge and/or discharge the first capacitor based on a first input voltage; and a second inverter, which is coupled to the primary coil via a second capacitor and which is configured to charge and/or discharge the second capacitor based on a second input voltage. The primary unit has a control unit, which is configured to identify capacitance information with respect to an effective capacitance of a primary resonant circuit of the primary unit, and to actuate the first inverter and the second inverter depending on the capacitance information in order to effect the coil current through the primary coil.

Abstract: A primary coil unit is configured for electromagnetically coupling with a secondary coil unit. The primary coil unit includes a primary coil and a primary ferrite, where the primary coil is movably supported relative to the primary ferrite.

Abstract: A system includes a power withdrawal point on a power supply network and a vehicle for the corded charging of a traction battery at the power withdrawal point. The vehicle includes a charging electronics unit for charging, and is electrically connectable to the vehicle-external power withdrawal point via a charging cable. The charging cable is configured as a cable connected outside the vehicle to a station charging device for a charging process, or as a cable charging device. The station charging device or the cable charging device, respectively, is electrically connected to the power withdrawal point when a charging connection has been established, and the power withdrawal point can supply an alternating current respectively via the station charging device or via the cable charging device for charging.

Abstract: A charging station facility is provided having one or more charging stations for wirelessly transmitting electric energy to a vehicle. Each charging station includes a base unit which is designed to generate an electromagnetic charging field during a charging process in order to transmit electric energy to the vehicle and a transmitting and/or receiving unit which is designed to receive a request signal from a transmission unit of a vehicle or to transmit the request signal to a receiving unit of the vehicle. The request signal lies in any range of a plurality of different frequency ranges. The receiving unit is additionally designed to ascertain a signal strength of the received request signal.

Abstract: A primary unit for an inductive charging system configured to transmit energy from the primary unit to a secondary unit via a magnetic field includes a primary coil, which is configured to generate the magnetic field in response to a coil current through the primary coil. The primary unit also has a first inverter, which is coupled to the primary coil via a first capacitor and which is configured to charge and/or discharge the first capacitor based on a first input voltage; and a second inverter, which is coupled to the primary coil via a second capacitor and which is configured to charge and/or discharge the second capacitor based on a second input voltage. The primary unit has a control unit, which is configured to identify capacitance information with respect to an effective capacitance of a primary resonant circuit of the primary unit, and to actuate the first inverter and the second inverter depending on the capacitance information in order to effect the coil current through the primary coil.

Abstract: A method for determining the position of a charging station for wirelessly transferring electric energy to a vehicle, wherein the charging station comprises a ground unit with a primary coil configured to generate an electromagnetic charging field for transferring electric energy to the vehicle, and wherein the vehicle comprises a receiving unit of a satellite positioning system and a secondary coil in the vehicle underbody, comprises performing, by the receiving unit of the vehicle, a plurality of position determination operations for at least part of the duration of a charging process during which the vehicle is arranged with respect to the ground unit such that the secondary coil of the vehicle has a predefined positional relationship with respect to the primary coil of the ground unit.