Abstract: A secondary-sided arrangement of at least one secondary winding structure includes at least one phase line and one secondary winding structure per phase line, wherein the secondary-sided arrangement comprises at least two magnetically conducting elements, at least one lateral outer magnetically conducting element and at least one inner magnetically conducting element, wherein a width of the at least one lateral outer magnetically conducting element is larger than a width of the at least one inner magnetically conducting element and/or a length of the at least one inner magnetically conducting element is smaller than a length of the at least one lateral outer magnetically conducting element. A method for manufacturing a secondary-sided arrangement is also disclosed.

Abstract: The invention relates to an inductive power transfer pad (10), comprising a conductor arrangement (36) for generating or receiving an electromagnetic field during an inductive power transfer and an airflow generating system (37) that is configured to generate an airflow (22) during an inductive power transfer, said airflow (22) being directed into the surroundings of the inductive power transfer pad (10). Further, the invention relates to an arrangement (11) for an inductive power transfer and a method for cooling an inductive power transfer pad (10).

Abstract: The invention relates to a system for determining a relative position and/or orientation between a primary winding structure and a secondary winding structure of a system for inductive power transfer. The system includes at least one secondary-sided transmitting unit, wherein a positioning signal with a positioning frequency is transmittable by the secondary-sided transmitting unit. The system includes at least one primary-sided receiving unit. A signal portion of the received signal with the positioning frequency is determinable. The relative position and/or orientation is determinable depending on the determined signal portion. The invention relates to a method for determining a relative position and/or orientation between a primary winding structure and a secondary winding structure of a system for inductive power transfer.

Abstract: A secondary-sided arrangement of at least one secondary winding structure includes at least one phase line and one secondary winding structure per phase line, wherein the secondary-sided arrangement comprises at least two magnetically conducting elements, at least one lateral outer magnetically conducting element and at least one inner magnetically conducting element, wherein a width of the at least one lateral outer magnetically conducting element is larger than a width of the at least one inner magnetically conducting element and/or a length of the at least one inner magnetically conducting element is smaller than a length of the at least one lateral outer magnetically conducting element. A method for manufacturing a secondary-sided arrangement is also disclosed.

Abstract: An inductive power transfer system for transferring electric energy to a vehicle. The system includes a wayside electric conductor arrangement and a vehicle side receiving device. The wayside electric conductor arrangement is combined with an array of a plurality of sensor coils, placed side by side to form the array. The array extends in directions transverse to a field direction of the electromagnetic field, which field direction extends from the wayside electric conductor arrangement to the vehicle side receiving device during transfer of the energy to the vehicle. A detector arrangement is connected to the plurality of the sensor coils and adapted to detect an effect of any magnetic and/or electrically conducting body, that is possibly located in the field direction on at least one electrical property of at least one of the sensor coils. At least one marker body is combined with the vehicle side receiving device.

Abstract: Disclosed is a system and a method of operating an inductive power transfer system for transferring power to a vehicle. The inductive power transfer system includes a primary winding structure for generating an alternating electromagnetic field and a secondary winding structure for receiving the alternating electromagnetic field and generating an alternating current output voltage, wherein the alternating current output voltage is rectified and supplied to at least one energy storage element. The rectified output voltage is adjusted by varying a gap size of a gap between the primary winding structure and the secondary winding structure, wherein the gap size is adjusted to prepare and/or to initiate and/or to control an energy transfer process depending on charging characteristics of the at least one energy storage element.

Abstract: The invention relates to a system for determining a relative position and/or orientation between a primary winding structure and a secondary winding structure of a system for inductive power transfer. The system includes at least one secondary-sided transmitting unit, wherein a positioning signal with a positioning frequency is transmittable by the secondary-sided transmitting unit. The system includes at least one primary-sided receiving unit. A signal portion of the received signal with the positioning frequency is determinable. The relative position and/or orientation is determinable depending on the determined signal portion. The invention relates to a method for determining a relative position and/or orientation between a primary winding structure and a secondary winding structure of a system for inductive power transfer.

Abstract: The invention relates to a method of operating a three phase primary winding structure of a system for inductive power transfer, wherein the primary winding structure includes a first phase line, a second phase line and a third phase line, wherein in a standard operational mode a first phase input voltage, a second phase input voltage and a third phase input voltage are controlled such that a predetermined phase shift between all three phase input voltages is provided, wherein in a modified operational mode the first phase input voltage, the second phase input voltage and the third phase input voltage are controlled such that the set of phase shift values includes at most two non-zero values and all non-zero phase shift values are equal. Furthermore, the invention relates to a primary unit of a system for inductive power transfer.

Abstract: Provided herein is an inductive power transfer pad for inductive power transfer to a vehicle. The inductive power transfer pad includes a stationary part and a movable part. The movable part includes a primary winding structure. The movable part is movable between a retracted state and an extended state. The power transfer pad is designed or controllable such that the movable part is only movable to a position from a set of predetermined positions. The set of predetermined positions is a subset of the set of all positions between the retracted and the extended state. A method of operating an inductive power transfer pad and an inductive power transfer system are also provided herein.

Abstract: Disclosed is a system and a method of operating an inductive power transfer system for transferring power to a vehicle. The inductive power transfer system includes a primary winding structure for generating an alternating electromagnetic field and a secondary winding structure for receiving the alternating electromagnetic field and generating an alternating current output voltage, wherein the alternating current output voltage is rectified and supplied to at least one energy storage element. The rectified output voltage is adjusted by varying a gap size of a gap between the primary winding structure and the secondary winding structure, wherein the gap size is adjusted to prepare and/or to initiate and/or to control an energy transfer process depending on charging characteristics of the at least one energy storage element.

Abstract: A receiving device for receiving a magnetic field and for producing electric energy by magnetic induction. The receiving device includes at least one coil of at least one electric line. The magnetic field induces an electric voltage in the at least one coil during operation. The receiving device and the at least one coil are adapted to receive the magnetic field from a receiving side of the receiving device. The receiving device includes a field shaping arrangement including magnetizable material adapted to shape magnetic field lines of the magnetic field. The field shaping arrangement is placed behind the at least one coil. A depth of the field shaping arrangement varies. A method of manufacturing a receiving device and an arrangement including the receiving device.

Abstract: A receiving device for receiving a magnetic field and producing electric energy by magnetic induction. The receiving device includes at least one coil of an electric line. The magnetic field induces an electric voltage in the coil during operation. The coil has an inductance. The receiving device and the coil are adapted to receive the magnetic field from a receiving side. The receiving device includes a case enclosing the at least one coil and further components of the receiving device. The receiving device includes at least one capacitor. The capacitor is electrically connected to the coil or to at least one of the coils so as to form an electric circuit having a resonance frequency according to the inductance(s) of the coil(s) and to the capacitance(s) of the capacitor(s).

Abstract: An arrangement for providing a vehicle, in particular a track bound and/or road vehicle, with electric energy, comprising a receiving device 1 adapted to receive an alternating electromagnetic field and produce an alternating electric current by electromagnetic induction. The receiving device comprises three phase lines, 2a, 2b, 2c, connected on one side to a common star point 5, and on the other side to a bridge rectifier 10. Each phase line includes an inductance 3a, 3b, 3c and a capacitance 4a, 4b, 4c having a resonant frequency. The rectifier comprises a number of controllable switches 12, 13 and a control device to switch the switches on and off at a frequency smaller than the resonant frequency. During operation the incident electromagnetic field induces a voltage in the inductances and a corresponding alternating current flows through the phase lines, is rectified by the rectifier, and is provided to the load 17.

Abstract: Provided herein is an inductive power transfer pad for inductive power transfer to a vehicle. The inductive power transfer pad includes a stationary part and a movable part. The movable part includes a primary winding structure. The movable part is movable between a retracted state and an extended state. The power transfer pad is designed or controllable such that the movable part is only movable to a position from a set of predetermined positions. The set of predetermined positions is a subset of the set of all positions between the retracted and the extended state. A method of operating an inductive power transfer pad and an inductive power transfer system are also provided herein.

Abstract: An inductive power transfer system for transferring electric energy to a vehicle. The system includes a wayside electric conductor arrangement and a vehicle side receiving device. The wayside electric conductor arrangement is combined with an array of a plurality of sensor coils, placed side by side to form the array. The array extends in directions transverse to a field direction of the electromagnetic field, which field direction extends from the wayside electric conductor arrangement to the vehicle side receiving device during transfer of the energy to the vehicle. A detector arrangement is connected to the plurality of the sensor coils and adapted to detect an effect of any magnetic and/or electrically conducting body, that is possibly located in the field direction on at least one electrical property of at least one of the sensor coils. At least one marker body is combined with the vehicle side receiving device.

Abstract: The invention relates to a method of operating a three phase primary winding structure of a system for inductive power transfer, wherein the primary winding structure includes a first phase line, a second phase line and a third phase line, wherein in a standard operational mode a first phase input voltage, a second phase input voltage and a third phase input voltage are controlled such that a predetermined phase shift between all three phase input voltages is provided, wherein in a modified operational mode the first phase input voltage, the second phase input voltage and the third phase input voltage are controlled such that the set of phase shift values includes at most two non-zero values and all non-zero phase shift values are equal. Furthermore, the invention relates to a primary unit of a system for inductive power transfer.

Abstract: A receiving device for receiving a magnetic field and for producing electric energy by magnetic induction. The receiving device includes at least one coil of at least one electric line. The magnetic field induces an electric voltage in the at least one coil during operation. The receiving device and the at least one coil are adapted to receive the magnetic field from a receiving side of the receiving device. The receiving device includes a field shaping arrangement including magnetizable material adapted to shape magnetic field lines of the magnetic field. The field shaping arrangement is placed behind the at least one coil. A depth of the field shaping arrangement varies. A method of manufacturing a receiving device and an arrangement including the receiving device.

Abstract: A receiving device for receiving a magnetic field and for producing electric energy by magnetic induction. The receiving device includes at least one coil of an electric line. The magnetic field induces an electric voltage in the coil during operation. The coil has an inductance. The receiving device and the coil are adapted to receive the magnetic field. The receiving device includes a separating structure. The separating structure includes at least one column made of a solid material. The invention also relates to a method of manufacturing a receiving device and an arrangement including the receiving device.

Abstract: A receiving device for receiving a magnetic field and producing electric energy by magnetic induction. The receiving device includes at least one coil of an electric line. The magnetic field induces an electric voltage in the coil during operation. The coil has an inductance. The receiving device and the coil are adapted to receive the magnetic field from a receiving side. The receiving device includes a case enclosing the at least one coil and further components of the receiving device. The receiving device includes at least one capacitor. The capacitor is electrically connected to the coil or to at least one of the coils so as to form an electric circuit having a resonance frequency according to the inductance(s) of the coil(s) and to the capacitance(s) of the capacitor(s).

Abstract: An arrangement for providing a vehicle, in particular a track bound and/or road vehicle, with electric energy, comprising a receiving device 1 adapted to receive an alternating electromagnetic field and produce an alternating electric current by electromagnetic induction. The receiving device comprises three phase lines, 2a, 2b, 2c, connected on one side to a common star point 5, and on the other side to a bridge rectifier 10. Each phase line includes an inductance 3a, 3b, 3c and a capacitance 4a, 4b, 4c having a resonant frequency. The rectifier comprises a number of controllable switches 12, 13 and a control device to switch the switches on and off at a frequency smaller than the resonant frequency. During operation the incident electromagnetic field induces a voltage in the inductances and a corresponding alternating current flows through the phase lines, is rectified by the rectifier, and is provided to the load 17.