Method for diagnosing an internal combustion engine
First Claim
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1. A method for diagnosing an internal combustion engine, the method comprising:
- recording, using at least one microphone associated with the internal combustion engine, a sound of the internal combustion engine, and converting it into an electrical signal; and
diagnosing an operating state of the internal combustion engine using the electrical signal representing the sound.
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Abstract
A method for diagnosing an internal combustion engine including at least one microphone associated with the internal combustion engine, the sound of the internal combustion engine being recorded and converted into an electrical signal. The electrical signal representing the sound is used for the diagnosis of the operating state of the internal combustion engine.
34 Citations
15 Claims
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1. A method for diagnosing an internal combustion engine, the method comprising:
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recording, using at least one microphone associated with the internal combustion engine, a sound of the internal combustion engine, and converting it into an electrical signal; and diagnosing an operating state of the internal combustion engine using the electrical signal representing the sound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for diagnosing an internal combustion engine, comprising:
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a recording arrangement to record, using at least one microphone associated with the internal combustion engine, a sound of the internal combustion engine, and converting it into an electrical signal; and a diagnosing arrangement to diagnose an operating state of the internal combustion engine using the electrical signal representing the sound.
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14. A computer readable medium having a program executable by a processor, comprising:
program code for diagnosing an internal combustion engine by performing the following; recording, using at least one microphone associated with the internal combustion engine, a sound of the internal combustion engine, and converting it into an electrical signal; and diagnosing an operating state of the internal combustion engine using the electrical signal representing the sound.
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15. A system for actively controlling the sound of the exhaust gas system of an internal combustion engine, comprising:
a device for diagnosing an internal combustion engine, including; a recording arrangement to record, using at least one microphone associated with the internal combustion engine, a sound of the internal combustion engine, and converting it into an electrical signal; and a diagnosing arrangement to diagnose an operating state of the internal combustion engine using the electrical signal representing the sound.
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