Manufacturer-independent positioning system for an inductive charging process
First Claim
1. A charging station for wirelessly transmitting electrical energy to a vehicle, the charging station comprising:
- a base unit which is configured to generate an electromagnetic charging field for transmitting electrical energy to the vehicle; and
a receiver unit which is configuredto receive a request signal from a transmitter unit of a vehicle;
wherein the request signal lies in any of a plurality of different frequency ranges;
to detect a signal strength of the received request signal;
to detect the frequency range of the request signal from the plurality of different frequency ranges; and
to adapt a signal conditioning unit to the frequency range of the request signal,wherein a position of the vehicle relative to the base unit is determined based on the detected signal strength of the received request signal, andwherein the request signal comprises a request signal of a keyless access function and/or of a keyless engine start function of the vehicle.
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Accused Products
Abstract
A method and a corresponding device are provided for positioning a vehicle over the base unit of an inductive charging system. In particular, a charging station for wirelessly transmitting electric energy to a vehicle includes a base unit which is designed to generate an electromagnetic charging field for transmitting electric energy to the vehicle. The charging station has a receiving unit which is designed to receive a request signal from a transmitting unit of a vehicle. The request signal lies in any of a plurality of different frequency ranges. The receiving unit is further designed to determine a signal strength of the received request signal.
18 Citations
12 Claims
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1. A charging station for wirelessly transmitting electrical energy to a vehicle, the charging station comprising:
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a base unit which is configured to generate an electromagnetic charging field for transmitting electrical energy to the vehicle; and a receiver unit which is configured to receive a request signal from a transmitter unit of a vehicle; wherein the request signal lies in any of a plurality of different frequency ranges; to detect a signal strength of the received request signal; to detect the frequency range of the request signal from the plurality of different frequency ranges; and to adapt a signal conditioning unit to the frequency range of the request signal, wherein a position of the vehicle relative to the base unit is determined based on the detected signal strength of the received request signal, and wherein the request signal comprises a request signal of a keyless access function and/or of a keyless engine start function of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for determining a position of a vehicle relative to a charging station, the method comprising the acts of:
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receiving a signal at the charging station, wherein the received signal comprises a request signal transmitted from the vehicle, and wherein the request signal lies in any of a plurality of different frequency ranges; detecting a frequency range of the request signal at the charging station as a frequency range from the plurality of different frequency ranges; conditioning the received signal as a function of the detected frequency range of the request signal; detecting a signal strength of the request signal on the basis of the conditioned signal; and detecting the position of the vehicle relative to the charging station on the basis of the detected signal strength, wherein the request signal comprises a request signal of a keyless access function and/or of a keyless engine start function of the vehicle.
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Specification