Method and device for self-diagnosing ignition coil of engine of vehicle
AssigneesHyundai Motor Company, Kia Corporation
InventorJe Hyeon Um
Life of this patent
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Abstract
A method for self-diagnosing an ignition coil of an engine of a vehicle, which self-diagnoses an error of the ignition coil supplying voltage to a spark plug includes generating, by a self-diagnosis signal generating device included in the ignition coil, a fault flag signal by monitoring a discharge time of secondary current which flows on a secondary coil of the ignition coil, and generating, by a controller, a diagnostic trouble code (DTC) according to a duration of the fault flag signal.
Claims8
A method for self-diagnosing an ignition coil of an engine of a vehicle, which self-diagnoses an error of the ignition coil configured to supply voltage to a spark plug, the method comprising:
- generating, by a self-diagnosis signal generating device included in the ignition coil, a fault flag signal by monitoring a discharge time of a secondary current which flows on a secondary coil of the ignition coil;
- and
- generating, by a controller, a diagnostic trouble code (DTC) according to a duration of the fault flag signal.
A device for self-diagnosing an ignition coil of an engine of a vehicle, the device comprising:
- an ignition coil generating a fault flag signal by monitoring a discharge time of secondary current which flows on a secondary coil of the ignition coil supplying voltage to a spark plug;
- and
- a controller generating a diagnostic trouble code (DTC) according to a duration of the fault flag signal.
Dependencies are inferred from the claim text.