System and method for illuminating charging port of electric vehicle

1. A system for illuminating a charging port of an electric vehicle, the charging port being provided in a vehicle body for supplying electrical power to a vehicle driving battery, the system comprising:

a charging port door configured to open and close the charging port, wherein the charging port door is hinge-coupled to the vehicle body through a hinge device configured to be opened upward and wherein the hinge device comprises:

a hinge shaft configured to provide hinge coupling;

a hinge body configured to rotate about the hinge shaft; and

a hinge arm configured to connect the hinge body and the charging port door, wherein the hinge arm comprises:

a first arm protruding from the hinge body, wherein a first sliding groove is formed on the first arm;

a second arm configured to connect the first arm and the charging port door, wherein a second sliding groove is formed on the second arm; and

a third arm extending in parallel with the charging port door from an end of the second arm and coupled with the charging port door;

a lamp device disposed on an inner surface of the charging port door and positioned to illuminate the charging port, wherein the lamp device is configured to emit light from the inner surface of the charging port door;

a lamp wiring disposed along the hinge device and configured to supply power to the lamp device; and

a hinge cover configured to cover the lamp wiring, wherein the hinge cover comprises:

a first cover configured to cover the first arm and slidably coupled with the first arm through the first sliding groove;

a second cover configured to support the first cover and cover the second arm, the second cover being slidably coupled with the second arm through the second sliding groove; and

a third cover configured to cover the third arm.

2. The system of claim 1 , wherein the lamp device is configured to illuminate downward from the charging port door when the charging port door is in an opened state.

3. The system of claim 1 , wherein:

the hinge arm comprises a rib protruding toward the hinge cover; and

the lamp wiring is fixed between the hinge arm and the hinge cover by the rib.

4. The system of claim 1 , wherein:

a wiring holding indentation is formed between the hinge cover and the hinge body;

the lamp wiring is fixed to the wiring holding indentation as the hinge cover is coupled to the hinge arm; and

the lamp wiring leads to inside of the vehicle through the wiring holding indentation.

5. The system of claim 4 , wherein a portion of the lamp wiring from the wiring holding indentation toward the inside of the vehicle is fixed by being tightly held by a holding member formed on a hinge housing of the hinge device.

6. The system of claim 1 , wherein:

a light transmitting window is formed at the hinge cover; and

the lamp device is coupled with an inner surface of the hinge cover and configured to illuminate through the light transmitting window.

7. The system of claim 1 , further comprising:

a door sensor configured to detect opening and closing of the charging port door; and

a lamp controller configured to control supplying of electricity to the lamp device based on a signal from the door sensor.

8. The system of claim 7 , wherein the lamp controller is configured to control the supplying of the electricity to turn on the lamp device in response to detection of the opening of the charging port door, and to turn off the lamp device in response to detection of the closing of the charging port door.

9. The system of claim 7 , wherein the lamp controller is configured to turn off the lamp device after a preset time period when a start of charging of the vehicle driving battery is detected after turning on the lamp device.

10. The system of claim 9 , wherein the lamp controller is further configured to, after turning off the lamp device after the preset time period, generate a preset warning signal through the lamp device when an abnormality of the charging is detected.

11. The system of claim 9 , wherein the lamp controller is further configured to, after turning off the lamp device after the preset time period, turn on the lamp device when a finish of the charging is detected.

12. A method for illuminating the charging port of claim 1 , the method comprising:

detecting opening of the charging port door;

turning on the lamp device to illuminate downward from the charging port door toward the charging port, in response to detecting the opening of the charging port door;

detecting closing of the charging port door; and

turning off the lamp device in response to detecting the closing of the charging port door.

13. The method of claim 12 , further comprising:

detecting a start of charging the vehicle driving battery after turning on the lamp device; and

turning off the lamp device after a preset time period after detecting the start of the charging.

14. The method of claim 13 , further comprising, after turning off the lamp device after the preset time period:

detecting an abnormality of the charging; and

generating a preset warning signal through the lamp device in response to detecting the abnormality of the charging.

15. The method of claim 13 , further comprising, after turning off the lamp device after the preset time period:

detecting a finish of the charging; and

turning on the lamp device in response to detecting the finish of the charging.