APPARATUS AND METHOD OF DIAGNOSING CURRENT SENSOR OF ECO-FRIENDLY VEHICLE
First Claim
1. An apparatus of diagnosing a current sensor of an eco-friendly vehicle, comprising:
- a load monitor configured to monitor whether a load in the eco-friendly vehicle is operated, wherein the current sensor is configured to sense an output current of a high voltage battery; and
a controller configured to detect an abnormality in the current sensor when the current sensor senses a current exceeding a first threshold value and the load is not operated.
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Abstract
An apparatus and a method of diagnosing a current sensor of an eco-friendly vehicle is provided. A fault is detected in a current range between disconnection and short-circuit of a current sensor by monitoring whether a load using a high voltage in the eco-friendly vehicle is operated to detect a fault of the current sensor sensing an output current of a high voltage battery. The apparatus includes the current sensor configured to sense an output current of a high voltage battery and a load monitor that monitors whether a load in the eco-friendly vehicle is operated. A controller then detects an abnormality in the current sensor when the current sensor senses a current exceeding a first threshold value and the load is not operated.
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Citations
12 Claims
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1. An apparatus of diagnosing a current sensor of an eco-friendly vehicle, comprising:
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a load monitor configured to monitor whether a load in the eco-friendly vehicle is operated, wherein the current sensor is configured to sense an output current of a high voltage battery; and a controller configured to detect an abnormality in the current sensor when the current sensor senses a current exceeding a first threshold value and the load is not operated. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of diagnosing a current sensor of an eco-friendly vehicle, comprising:
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monitoring, by a load monitor, whether a load in the eco-friendly vehicle is operated; sensing, by the current sensor, an output current of a high voltage battery; and detecting, by a controller, an abnormality in the current sensor when the current sensor senses a current exceeding a first threshold value and the load is not operated. - View Dependent Claims (8, 9)
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10. A method of diagnosing a current sensor of an eco-friendly vehicle, comprising:
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monitoring, by a load monitor, whether a load in the eco-friendly vehicle is operated; sensing, by the current sensor, an output current of a high voltage battery; sensing, by a voltage sensor, a voltage of the high voltage battery; and detecting, by a controller, an abnormality in the current sensor based on the voltage sensed by the voltage sensor when the current sensor senses a current exceeding a first threshold value and the load is not operated. - View Dependent Claims (11, 12)
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Specification