Abstract: A system for inductive energy transmission may include a stationary induction charging device, a mobile induction charging device, and a positioning device configured to detect a relative position of respective charging coils of the charging devices during charging. The positioning device may include a transmitting device and a receiving device that are each arranged in a respective one of the charging devices. The transmitting device may include at least two transmitters that simultaneously emit a respective transmission signal with an associated predetermined frequency. The receiving device may include a receiver configured to output a superimposition of all received transmission signals as a time-dependent received signal. The positioning device may be configured to i) determine an associated amplitude for each transmission signal from the time-dependent received signal and/or ii) provide a position information item from the determined amplitudes.

Abstract: An electric machine, in particular for a motor vehicle, is provided. The machine includes a housing, which is designed open and partially surrounds a housing interior. The machine, furthermore, includes a rotor, which is arranged rotationally adjustably relative to the housing in the housing interior. The machine additionally includes a stator, which is arranged fixed in place relative to the housing in the housing interior and includes multiple magnetic field coils with electrically energizable stator windings. For electrically energizing the stator windings the field coils are electrically connectable or connected to a power electronic system. The power electronic system includes a cooling plate for cooling the power electronic system and is formed by a power electronic module that is formed separately from the housing and can be inserted into the housing interior.

Abstract: A charging device includes a passive auxiliary circuit and a rectifier which is connected downstream of the auxiliary circuit. The passive auxiliary circuit includes input nodes and output nodes. Between the input node and the output nodes, two impedances are connected. Here, an imaginary component of the first impedance has a positive non-zero value and an imaginary component of the second impedance a negative non-zero value or vice versa.

Abstract: An electric machine, in particular for a motor vehicle, is provided. The machine includes a housing, which is designed open and partially surrounds a housing interior. The machine, furthermore, includes a rotor, which is arranged rotationally adjustably relative to the housing in the housing interior. The machine additionally includes a stator, which is arranged fixed in place relative to the housing in the housing interior and includes multiple magnetic field coils with electrically energizable stator windings. For electrically energizing the stator windings the field coils are electrically connectable or connected to a power electronic system. The power electronic system includes a cooling plate for cooling the power electronic system and is formed by a power electronic module that is formed separately from the housing and can be inserted into the housing interior.

Abstract: A wireless power transfer (WPT) system for an electrical vehicle (EV) may include a ground assembly (GA) having a GA transmitter coil, a vehicle assembly (VA) having a VA receiver coil magnetically coupled to the GA transmitter coil, a compensation strategy stage including a parallel-series compensation network to obtain a voltage VVA in the VA receiver coil proportional to an effective current Ip_rms in the GA transmitter coil, a rectifier in the VA to obtain a continuous voltage Vdc_VA, and a control strategy stage with a voltage control loop and a current control loop. The control strategy stage may provide a control command to regulate voltage in the VA to adjust the continuous voltage Vdc_VA based on a reference DC link voltage. A DC link of a conductive charger of the EV may be regulated with the adjusted continuous voltage Vdc_VA during an inductive charging process of the EV. The rectifier may be connected to the DC link of the conductive charger of the EV.