Apparatus and method for detecting disconnnection of lamps

• US 9,500,691 B2
• Filed: 04/15/2015
• Issued: 11/22/2016
• Est. Priority Date: 11/06/2014
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Yun, Hyun Chul
• Primary Examiner(s): Tan, Vibol
• Application Number:
  US14/687,296
• Publication Number:
  US 20160129829A1
• Time in Patent Office: 587 Days
• US Class Current: 1/1
• CPC Class Codes: B60Q 11/00 Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
• CPC Class Codes: G01R 31/006 on road vehicles, e.g. automobiles or trucks testing of ignition installations peculiar to internal combustion engines F02P17/00
• CPC Class Codes: G01R 31/007 using microprocessors or computers
• CPC Class Codes: G01R 31/66 Testing of connections, e.g. of plugs or non-disconnectable joints testing for incorrect line connections G01R31/55
• CPC Class Codes: H05B 47/25 Circuit arrangements for protecting against overcurrent

Abstract

An apparatus and method for detecting a disconnection of lamps are provided. The apparatus includes a power supply that is configured to supply power to a vehicle and a controller. The controller receives operation power for at least one lamp mounted within the vehicle and supplies the operation power to the at least one lamp. In addition, the controller measures an inrush current value generated from the at least one lamp for a plurality of time intervals and detects the disconnection of the at least one lamp based on the inrush current value.

Claims

1. An apparatus for detecting a disconnection of lamps, comprising:

a power supply configured to supply power to a vehicle;

a controller configured to;

receive operate power for at least one lamp mounted within the vehicle;

supply the operation power to the at least one lamp;

measure a inrush current value generated from the at least one lamp a plurality of time intervals, wherein the controller measures the inrush current values using a sensor; and

determine the disconnection of the at least one lamp based on whether the measured inrush current value is normal.

2. The apparatus according to claim 1, wherein the controller is configured to supply the power and confirm whether a multi-function switch is turned on or off.

3. The apparatus according to claim 2, wherein the controller is configured to supply the operation power to the at least one lamp when the multi-function switch is turned off and execute a pre-stored lamp control algorithm to operate the at least one lamp when the multi-function switch is in a turn on state.

4. The apparatus according to claim 2, wherein the controller is configured to supply the operation power to the at least one lamp and then split a critical time into the plurality of time intervals and measure the inrush current values for each time interval.

5. The apparatus according to claim 4, wherein the controller is configured to detect an error in the at least one lamp when the inrush current values for the plurality of time intervals are beyond a normal range.

6. The apparatus according to claim 5, wherein the controller is configured to detect the disconnection when the confirmed error count is equal to or greater than a threshold value and output the confirmed result.

7. The apparatus according to claim 1, wherein the controller is configured to determine information regarding the nearest service center from the vehicle.

8. A method for detecting a disconnection of lamps, comprising:

detecting, by a controller, a power on of a vehicle;

supplying, by the controller, operation power to at least one lamp mounted within the vehicle when the power on is detected;

supplying, by the controller, the operation power to the at least one lamp and measuring inrush current values generated from the at least one lamp for a plurality of time intervals, wherein the controller measures the inrush current value using a sensor;

determining, by the controller, the disconnection of the at least one lamp based whether on the measured inrush current value is normal; and

outputting, by the controller, the disconnection determination result.

9. The method according to claim 8, further comprising:

after detecting the power on of the vehicle, confirming, by the controller, whether a multi-function switch is turned on or off.

10. The method according to claim 9, wherein the supplying of the operation power to the at least one lamp includes:

supplying, by the controller, the operation power to the at least one lamp when the multi-function switch is in a turn off state.

11. The method according to claim 10, further comprising:

executing, by the controller, a pre-stored lamp control algorithm to operate the at least one lamp when the multi-function switch is in a turn on state.

12. The method according to claim 9, wherein the determining of the disconnection of the at least one lamp includes:

splitting, by the controller, a critical time into the plurality of time intervals after the operation power is supplied to the at least one lamp; and

measuring, by the controller, the inrush current values for each of the plurality of split time intervals.

13. The method according to claim 12, wherein the determining of the disconnection of the at least one lamp includes:

determining, by the controller, an error in the at least one lamp when the measured inrush current values is beyond a normal range; and

detecting, by the controller, that the disconnection occurs when an error count is equal to or greater than a threshold value.

14. The method according to claim 8, further comprising:

after outputting the disconnection detection result, confirming and outputting, by the controller, information regarding a nearest service center from the vehicle.