Abstract: A switching device for a coil is specified, having an input connection, for connection to a coil electronics system and/or to a resonant circuit capacitor, an output connection, for connection to an end of the coil and/or to a resonant circuit capacitor, and a disconnecting device, wherein the disconnecting device is able to be switched between an on-state and an off-state, the disconnecting device connects the input connection and the output connection to an on-impedance in the on-state, and the disconnecting device connects the input connection and the output connection to an off-impedance in the off-state, the off-impedance has an increased value compared to the on-impedance, the off-impedance permits a flow of current between the input connection and the output connection, and the off-impedance is formed so as to damp at least one external signal of a definable frequency, the external signal being coupled into the coil.

Abstract: The invention relates to a module for contactless inductive energy transfer, including a coil with a magnetic core for emitting or receiving electrical energy using inductive coupling, and a wireless communication device, the magnetic core having a hole forming a communication channel for signals from the wireless communication device.

Abstract: A vehicle module CPM of an inductive vehicle charging system for charging an on-board energy store, wherein the vehicle charging system includes the CPM and at least one base module GPM arranged in a stationary manner, the CPM having: a monitoring device, a secondary coil, a managing device, and a communication device, the monitoring device and the communication device are each connected to the managing device, the secondary coil is designed to receive energy inductively transmitted by the GPM; the monitoring device is designed to ascertain a state Z(t) of the vehicle in which the CPM is installed and/or of the CPM and to transmit information IO to the managing device in an event of a specifiable state ZStart, the managing device is designed to transmit software SWCPM stored on the managing device and intended for the GPM to the GPM by the communication device after obtaining the information IO.

Abstract: A base station for a power transmission system the base station including a generator for generating power having a duty ratio and frequency, a circuit having a coil, a measuring device for measuring real power and/or apparent power in the circuit, and a control device, wherein the circuit is connected to the generator and the measuring device, wherein the control device is connected to the measuring device and the generator, wherein the control device is configured to keep the duty ratio constant while varying the frequency from a starting frequency, use the measuring device to measure the real power and/or the apparent power while varying the frequency, keep the frequency constant and vary the duty ratio when a real power limit value and/or apparent power limit value is/are exceeded, and exclude a combination of values for the frequency and the duty ratio when varying the frequency and/or the duty ratio.

Abstract: A system for determining a relative position and/or a relative distance of a transmitter with respect to a receiver, including: the transmitter for wirelessly emitting signals at the time ti, the receiver or receiving a signal at the time ti+?t, wherein the receiver is configured to determine the following: a signal level P and/or a signal-to-noise ratio SNR of the received signal, a direction of incidence of the received signal and, on the basis of P and E, a relative position POS of the transmitter with respect to the receiver and/or a relative distance D between the transmitter and the receiver, and another transmitter connected to the receiver and intended to wirelessly transmit P, SNR, POS, and/or D to another receiver connected to the transmitter.

Abstract: The invention relates to an inductive power transmission with a resonant circuit, the resonant circuit including a transmitting/receiving coil or a transmitting and receiving coil for transmitting and/or receiving electromagnetic energy, a coupling capacitor, a tuning capacitor, and a switching device, wherein the switching device is connected in series to the coupling capacitor and the tuning capacitor, and wherein, furthermore, the switching device is designed to activate and/or disconnect a signal generator and to modify a quality factor or to modify the resonance frequency of the resonant circuit.

Abstract: A system for charging an energy store in a vehicle and a method for operating the system, wherein the system includes a first transmission unit having a primary coil, arranged outside the vehicle in a stationary manner, and a second transmission unit having a secondary coil, arranged in the vehicle, wherein energy is transmitted via inductive energy transmission from the primary coil to the secondary coil to charge the energy store. The second transmission unit has a signal generator for generating and coupling signals into the secondary coil for transmission via the secondary coil, and the first transmission unit has an evaluation unit, a first auxiliary coil, and a second auxiliary coil, wherein the evaluation unit is designed to ascertain a magnetic coupling and/or a relative position between the first transmission unit and the second transmission unit based on the signals received by the primary coil and the auxiliary coils.

Abstract: Powertrain, comprising an inverter unit comprising an inverter configured for converting direct current to alternating current and an inverter housing defining an inverter housing interior volume accommodating the inverter, and an electric motor comprising a rotor and a stator, the rotor defining a motor axis and the electric motor being configured for providing torque, and an electric motor housing, and a reducing gear unit comprising a reducing gear and a reducing gear cover surrounding the reducing gear, the reducing gear defining an output reducing gear axis, wherein the output reducing gear axis is parallel to the motor axis, and in that the reducing gear cover and the inverter housing are arranged at opposite ends of the electric motor with respect to the motor axis, and in that the inverter housing comprises a cut-out, wherein the cut-out defines a cut-out region fully contained within the convex hull of the inverter housing, wherein the cut-out region is disjoint from the inverter housing interior vol

Abstract: A signal matching apparatus for an evaluation circuit for evaluating an electromagnetic signal for operation in an inductive energy transmission system, the apparatus including a signal transmission device, wherein the signal transmission device includes an antenna connection for connecting a receiving antenna, an evaluation connection for connecting the evaluation circuit for the electromagnetic signal, wherein the antenna connection is configured to receive the electromagnetic signal, wherein the signal transmission device is configured to leave the phase of the electromagnetic signal substantially unchanged and wherein the signal transmission device is configured to match the amplitude of the electromagnetic signal to a characteristic prescribable by the evaluation circuit, wherein the evaluation connection is configured to provide the electromagnetic signal to the evaluation circuit.

Abstract: A measuring device for measuring current effective power in a circuit of a transmission system, including an evaluation device and a calibration device, the evaluation device having a connection for measuring current, voltage, and phase shift between the current and the voltage in the circuit, wherein the evaluation device and the calibration device are connected to one another, the evaluation device configured to measure power by evaluating measured current and measured voltage, the calibration device configured to correct the measured current and/or the measured voltage via a cos ( ) value of a measured phase shift between the measured current and the measured voltage and/or via a holding time, the evaluation device configured to calculate a power value with a corrected value of the measured current and/or a corrected value of the measured voltage, and the calibration device configured to make available the calculated power as the current effective power.

Abstract: A module for inductive energy transfer including: a main coil HS completely enclosed by electrical insulation IS1, wherein only two connections, A1HS and A2HS, are routed from/to the main coil HS by insulation IS1; an electrical assembly with two high-voltage parts, HT1 and HT2, and at least one low-voltage part NT, wherein each of the high-voltage parts, HT1 and HT2, is directly and completely enclosed by respective separate electrical insulation, IS2HT1/IS2HT2, wherein connection A1HT is routed to the one-sided connection of the main coil HS, and electrical supply lines are routed from the low-voltage part NT to the high-voltage part HT1 by insulation IS2HT1, and wherein connection A2HT is routed to a reciprocal connection of the main coil HS, and the electrical supply lines are routed from the low-voltage part NT to the high-voltage part HT2 by insulation IS2HT2, and connection A1HS to connection A1HT and connection A2HS to connection A2HT are only electrically connectable or connected such that connection