VEHICLE INCLUDING ANTENNA APPARATUS AND CONTROL METHOD THEREOF

• US 20200137587A1
• Filed: 04/08/2019
• Published: 04/30/2020
• Est. Priority Date: 10/25/2018
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: KIM, Dongjin
• Granted Patent: US 10,979,912 B2
• Time in Patent Office: Days
• CPC Class Codes: H01Q 1/3208 characterised by the application wherein the antenna is used
• CPC Class Codes: H01Q 1/3241 particular used in keyless entry systems
• CPC Class Codes: H01Q 15/24 Polarising devices; Polarisation filters H01Q15/12, H01Q15/22 take precedence
• CPC Class Codes: H01Q 15/246 rotating the plane of polarisation of a linear polarised wave guided wave H01P1/165
• CPC Class Codes: H01Q 3/02 using mechanical movement of antenna or antenna system as a whole
• CPC Class Codes: H01Q 3/24 varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 4/40 for vehicles, e.g. vehicle-to-pedestrians [V2P]

Abstract

A vehicle includes: an antenna; a polarization adjuster configured to change a first polarized wave emitted through the antenna; and a controller configured to receive a wireless signal from a portable user device through the antenna, to identify a second polarized wave emitted from the portable user device based on the wireless signal, and to control the polarization adjuster such that the first polarized wave matches the second polarized wave.

Claims

1. A vehicle comprising:

an antenna;

a polarization adjuster configured to change a first polarized wave emitted through the antenna; and

a controller configured to;

receive a wireless signal from a portable user device through the antenna;

identify a second polarized wave emitted from the portable user device based on the wireless signal; and

control the polarization adjuster such that the first polarized wave matches the second polarized wave.

2. The vehicle of claim 1, wherein the wireless signal received from the portable user device includes information about the second polarized wave.

3. The vehicle of claim 2, wherein the information about the second polarized wave is obtained from a posture of the portable user device.

4. The vehicle of claim 1, wherein the wireless signal received from the portable user device includes information about a posture of the portable user device.

5. The vehicle of claim 1, wherein the polarization adjuster includes a driving motor configured to rotate the antenna.

6. The vehicle of claim 5, wherein the controller controls the driving motor such that the first polarized wave matches the second polarized wave.

7. The vehicle of claim 1, wherein the antenna includes a plurality of polarization antennas and the polarization adjuster includes a switch configured to connect at least one of the plurality of polarization antennas to the controller.

8. The vehicle of claim 7, wherein the controller controls the switch to connect a polarization antenna, through which a third polarized wave that matches the second polarized wave is emitted, among the plurality of polarization antennas to the controller.

9. The vehicle of claim 1, wherein the controller determines whether the first polarized wave matches the second polarized wave.

10. The vehicle of claim 9, wherein the controller controls the polarization adjuster when the first polarized wave does not match the second polarized wave.

11. The vehicle of claim 9, wherein the controller processes the wireless signal from the portable user device when the first polarized wave matches the second polarized wave.

12. A method of controlling a vehicle, which includes an antenna and a polarization adjuster configured to change a first polarized wave emitted through the antenna, the method comprising steps of:

receiving a wireless signal from a portable user device through the antenna;

identifying a second polarized wave emitted from the portable user device based on the wireless signal; and

controlling the polarization adjuster such that the first polarized wave matches the second polarized wave.

13. The method of claim 12, wherein the wireless signal received from the portable user device includes information about the second polarized wave.

14. The method of claim 13, wherein the information about the second polarized wave is obtained from a posture of the portable user device.

15. The method of claim 12, wherein the wireless signal received from the portable user device includes information about a posture of the portable user device.

16. The method of claim 12, wherein the step of controlling the polarization adjuster includes controlling such that the first polarized wave matches the second polarized wave.

17. The method of claim 12, wherein the step of controlling the polarization adjuster includes controlling a switch to select a polarization antenna, through which a third polarized wave that matches the second polarized wave is emitted, among the plurality of polarization antennas.

18. The method of claim 12, further comprising a step of determining whether the first polarized wave matches the second polarized wave.

19. The method of claim 18, further comprising a step of controlling the polarization adjuster when the first polarized wave does not match the second polarized wave.

20. The method of claim 18, further comprising a step of processing the wireless signal from the portable user device when the first polarized wave matches the second polarized wave.