Method for diagnosing an internal combustion engine in a motor vehicle
First Claim
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1. A method for diagnosing an internal combustion engine in a motor vehicle having at least one sensor unit which includes at least one sound receiver, the method comprising:
- recording sound waves of the internal combustion engine using the sound receiver;
converting the sound waves into an electrical signal using the sound receiver; and
using the electrical signal for a diagnosis of an operating state of the internal combustion engine.
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Abstract
A method for diagnosing an internal combustion engine in a motor vehicle having at least one sensor unit, including at least one sound receiver, the sound receiver converting sound waves into an electrical signal. Sound waves of the internal combustion engine are recorded using the sound receiver of the sensor unit and converted into an electrical signal, and the electrical signal is used for the diagnosis of the operating state of the internal combustion engine.
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Citations
12 Claims
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1. A method for diagnosing an internal combustion engine in a motor vehicle having at least one sensor unit which includes at least one sound receiver, the method comprising:
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recording sound waves of the internal combustion engine using the sound receiver; converting the sound waves into an electrical signal using the sound receiver; and using the electrical signal for a diagnosis of an operating state of the internal combustion engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control unit for diagnosing an internal combustion engine in a motor vehicle having at least one sensor unit which includes at least one sound receiver, the control unit comprising:
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means for recording sound waves of the internal combustion engine using the sound receiver; means for converting the sound waves into an electrical signal using the sound receiver; and means for using the electrical signal for a diagnosis of an operating state of the internal combustion engine.
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12. A computer program embodied on a computer-readable medium which when executed by a processor performs the following method for diagnosing an internal combustion engine in a motor vehicle having at least one sensor unit which includes at least one sound receiver:
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recording sound waves of the internal combustion engine using the sound receiver; converting the sound waves into an electrical signal using the sound receiver; and using the electrical signal for a diagnosis of an operating state of the internal combustion engine.
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Specification