FAULT DIAGNOSIS METHOD FOR VEHICLE

• US 20170154479A1
• Filed: 05/10/2016
• Published: 06/01/2017
• Est. Priority Date: 12/01/2015
• Status: Abandoned Application

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Kim, Seung Bum
• Application Number:
  US15/150,811
• Publication Number:
  US 20170154479A1
• Time in Patent Office: Days
• CPC Class Codes: G05B 19/042 using digital processors G05B19/05 takes precedence
• CPC Class Codes: G05B 2219/2637 Vehicle, car, auto, wheelchair
• CPC Class Codes: G05B 2219/45018 Car, auto, vehicle
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005
• CPC Class Codes: G07C 5/0816 Indicating performance data, e.g. occurrence of a malfunction

Abstract

A fault diagnosis method for a vehicle includes steps of: detecting, by a controller, whether a reference engineering code (REC) has been generated; if the reference engineering code (REC) has been generated as a result of performing the detecting step, measuring, by the controller, a time for which the reference engineering code (REC) has been generated; after the measuring step, calculating, by the controller, a percentage of the reference engineering code (REC), based on both the time for which the reference engineering code (REC) has been generated and a preset time; after the calculating step, storing, by the controller, the reference engineering code (REC) and the percentage of the REC; and after the storing step, when a request signal is received from a diagnostic device, providing, by the controller, an output signal that includes the reference engineering code (REC) and the percentage of the REC to the diagnostic device.

Claims

1. A fault diagnosis method for a vehicle, comprising the steps of:

detecting, by a controller, whether a reference engineering code (REC) has been generated;

measuring, by the controller, a time for which the reference engineering code (REC) has been generated, if the reference engineering code (REC) has been generated as a result of performing the detecting step;

calculating, by the controller, a percentage of the reference engineering code (REC), based on both the time for which the reference engineering code (REC) has been generated and a preset time, after the measuring step;

storing, by the controller, the reference engineering code (REC) and the percentage of the reference engineering code (REC), after the calculating step; and

when a request signal is received from a diagnostic device, providing, by the controller, an output signal that includes the stored reference engineering code (REC) and the stored percentage of the reference engineering code (REC) to the diagnostic device, after the storing step.

2. The fault diagnosis method of claim 1, wherein the calculating step further comprises calculating, by the controller, the percentage of the reference engineering code (REC) by dividing the time for which the reference engineering code (REC) has been generated by the preset time and multiplying a resulting value by 100.

3. The fault diagnosis method of claim 1, wherein the preset time is a time for which the reference engineering code (REC) has been generated until the diagnostic trouble code (DTC) is fixed.

4. The fault diagnosis method of claim 1, wherein the diagnostic device is configured to transmit a request signal to the controller depending on manipulation of a user and to display the reference engineering code (REC) and the percentage of the reference engineering code (REC) in response to the output signal received from the controller.

5. The fault diagnosis method of claim 1, further comprising, after the storing step:

when a request signal is not received from the diagnostic device, again performing, by the controller, the detecting step.

6. The fault diagnosis method of claim 5, further comprising, before the storing step:

when a previously stored percentage of reference engineering code (REC) is less than the percentage of the reference engineering code (REC) currently calculated at the calculating step, storing, by the controller, the previously stored percentage of the reference engineering code (REC).