Inductive power transfer for transferring electric energy to a vehicle
First Claim
1. An inductive power transfer system for transferring electric energy to a vehicle, wherein the system comprisesa wayside electric conductor arrangement for producing an alternating electromagnetic field and for thereby transferring the energy to the vehicle;
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the wayside electric conductor arrangement is combined with an array of a plurality of sensor coils, the sensor coils being 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, the detector arrangement being 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,the vehicle side receiving device is combined with a communication transmitter adapted to transmit communication signals to the array of the plurality of sensor coils, wherein the detector arrangement and/or a communication receiver, that is connected to the plurality of the sensor coils, is/are adapted to receive the communication signals via at least one of the plurality of sensor coils, andthe system is adapted to use a communication signal received via at least one of the plurality of sensor coils to detect a position of the vehicle side receiving device.
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Accused Products
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. A position determining device is connected to the detector arrangement and adapted to determine a position of the vehicle side receiving device. The invention also relates to a method of operating and of manufacturing an inductive power transfer system.
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Citations
14 Claims
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1. An inductive power transfer system for transferring electric energy to a vehicle, wherein the system comprises
a wayside electric conductor arrangement for producing an alternating electromagnetic field and for thereby transferring the energy to the vehicle; - and
a vehicle side receiving device for receiving the alternating electromagnetic field and for producing electric energy by magnetic induction, wherein; the wayside electric conductor arrangement is combined with an array of a plurality of sensor coils, the sensor coils being 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, the detector arrangement being 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, the vehicle side receiving device is combined with a communication transmitter adapted to transmit communication signals to the array of the plurality of sensor coils, wherein the detector arrangement and/or a communication receiver, that is connected to the plurality of the sensor coils, is/are adapted to receive the communication signals via at least one of the plurality of sensor coils, and the system is adapted to use a communication signal received via at least one of the plurality of sensor coils to detect a position of the vehicle side receiving device. - View Dependent Claims (2, 3, 4, 5)
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6. An arrangement for transferring electric energy to a vehicle, comprising
a wayside electric conductor arrangement for producing an alternating electromagnetic field and for thereby transferring the energy to a vehicle, an array of a plurality of sensor coils, a detector arrangement that is connected to the plurality of the sensor coils, the detector arrangement being adapted to detect an effect of any magnetic and/or electrically conducting body, that is possibly located in the field direction of the alternating electromagnetic field, on at least one electrical property of at least one of the sensor coils, wherein the detector arrangement and/or a communication receiver, that is connected to the plurality of the sensor coils, is/are adapted to receive communication signals from a vehicle side communication transmitter via at least one of the plurality of sensor coils and wherein the arrangement is adapted to use a communication signal received via at least one of the plurality of sensor coils to detect a position of a vehicle side receiving device for receiving the alternating electromagnetic field and for producing electric energy by magnetic induction.
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8. A method of operating an inductive power transfer system for transferring electric energy to a vehicle, the method comprising:
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producing, by a wayside electric conductor arrangement, an alternating electromagnetic field that thereby transfers the energy to the vehicle, receiving, by a vehicle side receiving device, the alternating electromagnetic field and producing from the received alternating electromagnetic field electric energy by magnetic induction, wherein; the wayside electric conductor arrangement is operated in combination with an array of a plurality of sensor coils, the sensor coils being 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, which is connected to the plurality of the sensor coils, detects 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, a communication transmitter that is combined with the vehicle side receiving device transmits a communication signal to the array of the sensor coils, the detector arrangement and/or a communication receiver, that is connected to the plurality of the sensor coils, receive(s) the communication signal via at least one of the plurality sensor coils, a communication signal received via at least one of the plurality of sensor coils is used to determine a position of the vehicle side receiving device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification