Providing a vehicle with electric energy using induction and a rectifier
First Claim
1. An arrangement for providing a vehicle with electric energy, the arrangement comprising:
- a receiving device adapted to receive an alternating electromagnetic field and to produce an alternating electric current by electromagnetic induction, wherein;
the receiving device comprises at least one inductance which is formed by an electrically conducting material for producing one phase of the alternating electric current by the electromagnetic induction,each inductance producing one phase of the alternating electric current at a resonance frequency at which the phase of the alternating electric current is produced in response to the alternating electromagnetic field of corresponding frequency being received by the receiving device,each inductance connected to a rectifier for rectifying the alternating electric current and thereby producing a direct electric current,the rectifier comprisesan automatically controllable switch which is arranged such that closing the switch results in a short circuit across the at least one inductance, ora plurality of automatically controllable switches which is arranged such that closing the switches results in a short circuit across the at least one inductance,the arrangement comprises a control device which is adapted to control the automatically controllable switch or the plurality of automatically controllable switches, andthe control device is adapted to switch on and off the automatically controllable switch or the plurality of automatically controllable switches at a frequency which is smaller than the resonance frequency.
5 Assignments
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Accused Products
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.
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Citations
15 Claims
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1. An arrangement for providing a vehicle with electric energy, the arrangement comprising:
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a receiving device adapted to receive an alternating electromagnetic field and to produce an alternating electric current by electromagnetic induction, wherein; the receiving device comprises at least one inductance which is formed by an electrically conducting material for producing one phase of the alternating electric current by the electromagnetic induction, each inductance producing one phase of the alternating electric current at a resonance frequency at which the phase of the alternating electric current is produced in response to the alternating electromagnetic field of corresponding frequency being received by the receiving device, each inductance connected to a rectifier for rectifying the alternating electric current and thereby producing a direct electric current, the rectifier comprises an automatically controllable switch which is arranged such that closing the switch results in a short circuit across the at least one inductance, or a plurality of automatically controllable switches which is arranged such that closing the switches results in a short circuit across the at least one inductance, the arrangement comprises a control device which is adapted to control the automatically controllable switch or the plurality of automatically controllable switches, and the control device is adapted to switch on and off the automatically controllable switch or the plurality of automatically controllable switches at a frequency which is smaller than the resonance frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operating a vehicle, in particular a track bound vehicle and/or a road automobile, using electric energy, wherein
an alternating electromagnetic field is received and is used to produce an alternating electric current by electromagnetic induction, the alternating electromagnetic field is received by one or more inductances, each of which is formed by an electrically conducting material and which produces one phase of the alternating electric current by the electromagnetic induction, each inductance produces one phase of the alternating electric current at a resonance frequency, the alternating electric current is rectified by a rectifier and thereby a direct electric current is produced, the rectifier is operated using an automatically controllable switch or a plurality of automatically controllable switches which, when temporarily closed effects a short circuit across the one or more inductances, and the at least one automatically controllable switch is controlled by a control device so that each automatically controllable switch is switched on and off at a frequency which is smaller than the resonance frequency.
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15. A method of manufacturing a vehicle, in particular a track bound vehicle and/or a road automobile, comprising the following steps:
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providing a receiving device adapted to receive an alternating electromagnetic field and to produce an alternating electric current by electromagnetic induction, providing for the receiving device one or more inductances, each of which is formed by an electrically conducting material for producing one phase of the alternating electric current by the electromagnetic induction, adapting each inductance in order to produce one phase of the alternating electric current, to operate at a resonance frequency at which the phase of the alternating electric current is produced in response to the alternating electromagnetic field of corresponding frequency being received by the receiving device, connecting each inductance to a rectifier for rectifying the alternating electric current and thereby producing a direct electric current, arranging an automatically controllable switch or a plurality of automatically controllable switches of the rectifier in such a manner that closing the switch or closing the plurality of the switches results in a short circuit across the one or more of inductances, providing a control device and adapting the control device so that it is able to control each automatically controllable switch and adapting the control device so that it is able to switch on and off each automatically controllable switch at a frequency which is smaller than the resonance frequency.
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Specification