Abstract: A method for operating an electric charging device for an electrically drivable motor vehicle. The electric charging device has a ground unit for positioning in the ground and for generating an alternating magnetic field for an electric charging operation. The method includes sensing a motor vehicle within a predefined perimeter surrounding the ground unit; sensing a driving parameter value of at least one driving parameter of the sensed motor vehicle at at least one respective predefinable point in time; storing the at least one driving parameter value if an electric charging operation is carried out for the detected motor vehicle; determining a driving recommendation on the basis of the at least one sensed and stored driving parameter value; and transmitting the driving recommendation if another motor vehicle is sensed within the predefined perimeter surrounding the ground unit.

Abstract: The disclosure relates to a method for determining position information of a motor vehicle, which has an inductive charging device with at least one charging coil, which is in particular situated in the region of the bottom of the vehicle, and a measurement means which is assigned to the charging coil to measure a magnetic field, the method having the following steps: magnetizing, by supplying current to the charging coil, at least one magnetic structure which is situated in or on a surface on which the motor vehicle drives, wherein the structure and further structures are stored together with a position indication for the respective structure in a digital map; measuring, using the measurement means, measurement data which describe the magnetic behavior of the structure; identifying the structure by evaluating the measurement data; and determining the position information depending on position indication assigned to the identified structure.

Abstract: A contactless motor vehicle-charging device which, as components, includes a primary side and a secondary side, between which, via at least one air gap, energy can be transferred via inductive and/or capacitive coupling, and each of the components in each case includes at least a portion of a control circuit of the contactless motor vehicle-charging device, wherein at least one of the components includes a field controller and at least one of the components comprises a field measurement device which is designed to acquire a magnetic and/or electric field strength, wherein the field controller is designed to use in at least one control operation the acquired field strength as an actual value and, by this actual value and a predetermined setpoint value, to set at least one field strength of the contactless motor vehicle-charging device as a control variable.

Abstract: A contactless motor vehicle-charging device which, as components, includes a primary side and a secondary side, between which, via at least one air gap, energy can be transferred via inductive and/or capacitive coupling, and each of the components in each case includes at least a portion of a control circuit of the contactless motor vehicle-charging device, wherein at least one of the components includes a field controller and at least one of the components comprises a field measurement device which is designed to acquire a magnetic and/or electric field strength, wherein the field controller is designed to use in at least one control operation the acquired field strength as an actual value and, by this actual value and a predetermined setpoint value, to set at least one field strength of the contactless motor vehicle-charging device as a control variable.

Abstract: The disclosure relates to a method for charging a battery of a motor vehicle by an external charging station and to a motor vehicle which is designed to carry out such a method. The method includes the following steps which occur before coupling the motor vehicle to the charging station for charging the battery of the motor vehicle: first, on the basis of charging station data received by a motor vehicle, data which characterizes a current maximum charging capacity of the charging station, it is verified whether a predetermined charging state of the battery of the motor vehicle can be achieved by the charging station within a predetermined time. If the predetermined charging state of the battery cannot be achieved, a warning signal is issued.

Abstract: The invention relates to a component of an inductive energy transmission apparatus, wherein the component includes an object recognition apparatus having at least a first and a second electrical inductance, wherein the first electrical inductance is formed by an energy transmission coil of the component, which can be acted upon by a predetermined measurement current, and the component comprises a measurement apparatus, an energy transmission unit and an evaluation apparatus.

Abstract: The disclosure relates to a method for determining position information of a motor vehicle, which has an inductive charging device with at least one charging coil, which is in particular situated in the region of the bottom of the vehicle, and a measurement means which is assigned to the charging coil to measure a magnetic field, the method having the following steps: magnetizing, by supplying current to the charging coil, at least one magnetic structure which is situated in or on a surface on which the motor vehicle drives, wherein the structure and further structures are stored together with a position indication for the respective structure in a digital map; measuring, using the measurement means, measurement data which describe the magnetic behavior of the structure; identifying the structure by evaluating the measurement data; and determining the position information depending on position indication assigned to the identified structure.

Abstract: A charging device for inductively charging an electrical energy store of a motor vehicle, having a primary coil, which is designed for inducing a voltage in a secondary coil of the motor vehicle for charging the electrical energy store, and having a lifting mechanism which is designed to move the primary coil between a stowage position and a charging position. A power electronics of the charging device is coupled in heat-conducting manner to the lifting mechanism.

Abstract: A method for providing a communication connection between a stationary electric charging station and a motor vehicle arranged in an environment of the charging station. The communication connection is established by a controller and trajectory data of a current approach trajectory of the motor vehicle are determined during an approach of the motor vehicle toward the charging station. At least one characteristic approach trajectory leading to the charging station is provided and compared with the current approach trajectory and, if the current approach trajectory fulfills a predetermined offset criterion regarding any characteristic approach trajectory, an alternating signal is generated which signalizes that the communication connection is dis-connected and a new communication connection should be established to a different charging station.

Abstract: A charging device for inductively charging an electrical energy store of a motor vehicle provided with a primary coil, which is designed to induce a voltage in a secondary coil of the motor vehicle for charging the electrical energy store, and with a lifting mechanism, which is designed to move the primary coil between a stored position and a charging position. The charging device is provided with a control device, which is adapted for operating the lifting mechanism in a deicing mode in which the lifting mechanism is moved according to a predeterminable movement cycle between the stored position and the charging position.

Abstract: A method for operating an electric charging device for an electrically drivable motor vehicle. The electric charging device has a ground unit for positioning in the ground and for generating an alternating magnetic field for an electric charging operation. The method includes sensing a motor vehicle within a predefined perimeter surrounding the ground unit; sensing a driving parameter value of at least one driving parameter of the sensed motor vehicle at at least one respective predefinable point in time; storing the at least one driving parameter value if an electric charging operation is carried out for the detected motor vehicle; determining a driving recommendation on the basis of the at least one sensed and stored driving parameter value; and transmitting the driving recommendation if another motor vehicle is sensed within the predefined perimeter surrounding the ground unit.

Abstract: A charging device for inductively charging an electrical energy store of a motor vehicle that is provided with a primary coil which is designed to induce a voltage in a secondary coil of the motor vehicle in order to charge the electrical energy store, and with a lifting mechanism, which is designed to move the primary coil between a stored position and a charging position. The charging device is provided with at least one heating conductor, in particular a heating wire, which is arranged on the lifting mechanism and which can be controlled by a control device of the charging device. The invention further relates to a method for operating a charging device.

Abstract: A charging device for inductively charging an electrical energy store of a motor vehicle that is provided with a primary coil which is designed to induce a voltage in a secondary coil of the motor vehicle in order to charge the electrical energy store, and with a lifting mechanism, which is designed to move the primary coil between a stored position and a charging position. The charging device is provided with at least one heating conductor, in particular a heating wire, which is arranged on the lifting mechanism and which can be controlled by a control device of the charging device. The invention further relates to a method for operating a charging device.

Abstract: The disclosure relates to a method for charging a battery of a motor vehicle by an external charging station and to a motor vehicle which is designed to carry out such a method. The method includes the following steps which occur before coupling the motor vehicle to the charging station for charging the battery of the motor vehicle: first, on the basis of charging station data received by a motor vehicle, data which characterizes a current maximum charging capacity of the charging station, it is verified whether a predetermined charging state of the battery of the motor vehicle can be achieved by the charging station within a predetermined time. If the predetermined charging state of the battery cannot be achieved, a warning signal is issued.

Abstract: The invention relates to a component of an inductive energy transmission apparatus, wherein the component includes an object recognition apparatus having at least a first and a second electrical inductance, wherein the first electrical inductance is formed by an energy transmission coil of the component, which can be acted upon by a predetermined measurement current, and the component comprises a measurement apparatus, an energy transmission unit and an evaluation apparatus.

Abstract: A method for ascertaining positional data describing a position of a motor vehicle relative to a stationary charging device as a destination. At the charging device end, a plurality of electromagnetic transmission signals are emitted from respectively different transmitting positions that are arranged in a transmitting position pattern and have respectively at least one signal characteristic that can be differentiated by the motor vehicle during reception. After which, for each reception signal received, signal strength data that describe its reception strength are produced, and the positional data are determined from the data, taking into consideration transmitter information describing the transmitting position pattern and an assignment of the transmitting positions to the signal characteristics.

Abstract: A charging device for inductively charging an electrical energy store of a motor vehicle, having a primary coil, which is designed for inducing a voltage in a secondary coil of the motor vehicle for charging the electrical energy store; and having a lifting mechanism, which is designed for moving the primary coil between a stowage position and a charging position. The charging device has a fan unit, which is arranged in such a way that an air flow that can be produced by the fan unit flow around a power electronics of the charging device, and subsequently flows to the lifting mechanism.

Abstract: A charging station for motor vehicles, including a primary coil for inductive transmission of energy to a battery of a motor vehicle and a metal detector. The metal detector is designed to detect a motor vehicle arranged above a charging station surface of the charging station. The charging station is provided with a transmitting device which is designed to transmit an occupancy signal if it is detected by the metal detector that a motor vehicle is arranged above the charging station surface.

Abstract: A charging device for inductive transfer of electric energy with a primary conductor arranged in a first housing, by which an alternating magnetic field can be generated when it is energized with an alternating current, electrically connected to a power source that is electrically connectable to a power electronics device for energizing the primary conductor with an alternating current. A drive means for moving the first housing from a first position to a second position, wherein the charging device is equipped with a fault detecting device, by which can be detected whether the first housing is or is not moved when a movement operation has been initiated by the drive means.

Abstract: An energy storage device for a motor vehicle. A housing and at least one energy storage device mounted in the housing. A coil device is provided, which is designed for inductively supplying energy via an external magnetic field in order to charge the energy storage, and which is arranged on an outer surface of the housing.