Wireless charging positioning device and positioning method
A technology of wireless charging and positioning method, which is applied in charging stations, electric vehicle charging technology, electric vehicles, etc., and can solve problems such as large environmental impact, large error, and high cost
Active Publication Date: 2020-10-16
BEIJING INVISPOWER TECH CO LTD
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Problems solved by technology
Therefore, an alignment detection system is generally configured in an electric vehicle to provide coil alignment guidance for the driver or the automatic driving system of the vehicle. The alignment of the prior art generally uses the difference between the transmitted power and the received power to determine whether it is aligned. This method has a relatively small error. Large, and it is also greatly affected by the environment
There are also some solutions where a camera is installed for alignment assistance, but in this way, the working environment of the camera is not easy to guarantee, and the cost is high
Method used
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[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0039] The invention discloses a wireless charging positioning device, which can be a part of a wireless charging system. Divided by wireless charging system, it can be as follows Figure 1A and Figure 1B As shown, it is divided into a transmitting terminal T and a receiving terminal R. In the following, for the convenience of explanation, an electric vehicle will be used as an example. At this time, the transmitting terminal T is the ground terminal, which is used to provide wireless energy output, and the receiving terminal R For the...
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The invention discloses wireless charging positioning equipment and a positioning method. The wireless charging positioning equipment comprises a transmitting terminal detection system mounted at a transmitting terminal and a receiving terminal detection system mounted at a receiving terminal. The transmitting terminal detection system comprises a signal generator, a driver, a transmitting circuitand a detection transmitting coil which are communicated in sequence; at least one transmitting loop is arranged in the transmitting circuit; and one detection transmitting coil is connected in eachtransmitting loop. The receiving terminal detection system comprises a detection receiving coil and a detection circuit which are communicated with each other; the detection circuit is provided with at least one receiving loop, and each receiving loop is connected with one detection receiving coil; and in the working range; and mutual inductance is generated between the detection transmitting coiland the detection receiving coil. According to the wireless charging positioning equipment and the wireless charging positioning method, alignment judgment during wireless charging can be realized.
Description
technical field [0001] The invention relates to the charging field, in particular to a wireless charging positioning device and a positioning method. Background technique [0002] As an ideal power supply method for electric vehicles, high-power wireless charging has been rapidly developed and widely used in recent years due to its advantages of safety, convenience and high degree of automation. During wireless charging, the transmitting coil and the receiving coil need to be aligned as much as possible to obtain the maximum coupling coefficient and achieve the maximum energy transmission efficiency. Therefore, an alignment detection system is generally configured in an electric vehicle to provide coil alignment guidance for the driver or the automatic driving system of the vehicle. The alignment of the prior art generally uses the difference between the transmitted power and the received power to determine whether it is aligned. This method has a relatively small error. La...
Claims
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IPC IPC(8): B60L53/38B60L53/12H02J50/90H02J50/12H02J50/40H02J50/80
CPCB60L53/12B60L53/38H02J50/12H02J50/40H02J50/80H02J50/90Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 王哲陆钧贺凡波葛俊杰马俊超
Owner BEIJING INVISPOWER TECH CO LTD