AUTOMATIC ENGINE OIL LIFE DETERMINATION ADJUSTED FOR VOLUME OF OIL EXPOSED TO A COMBUSTION EVENT
First Claim
1. A method for determining remaining oil life prior to an oil change in an internal combustion engine that uses a body of oil, the method comprising:
- transferring the body of oil to the engine;
determining a volume of the transferred body of oil;
determining a factor representative of a volume of oil from the transferred body of oil that is exposed to a combustion event in the engine;
determining the remaining oil life based on the determined volume of the body of oil and the determined factor representative of a volume of oil that is exposed to a combustion event; and
activating an oil change indicator when the remaining oil life reaches a predetermined level.
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Accused Products
Abstract
A method is provided for determining remaining oil life prior to an oil change in an internal combustion engine that uses a body of oil. The method includes transferring the body of oil to the engine and determining a volume of the transferred body of oil. The method also includes determining a factor representative of a volume of oil from the transferred body of oil that is exposed to a combustion event in the engine. Additionally, the method includes determining the remaining oil life based on the determined volume of the body of oil and the determined factor representative of a volume of oil that is exposed to a combustion event. Moreover, the method includes activating an oil change indicator when the remaining oil life reaches a predetermined level. A system for determining a number of engine revolutions permitted on a volume of oil is also disclosed.
16 Citations
19 Claims
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1. A method for determining remaining oil life prior to an oil change in an internal combustion engine that uses a body of oil, the method comprising:
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transferring the body of oil to the engine; determining a volume of the transferred body of oil; determining a factor representative of a volume of oil from the transferred body of oil that is exposed to a combustion event in the engine; determining the remaining oil life based on the determined volume of the body of oil and the determined factor representative of a volume of oil that is exposed to a combustion event; and activating an oil change indicator when the remaining oil life reaches a predetermined level. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for determining remaining oil life permitted prior to an oil change in an internal combustion engine that uses a body of oil, the system comprising:
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an oil sump arranged on the engine to accept the body of oil; a sensor arranged on the engine and configured to provide a signal indicative of a volume of the body of oil in the sump; and a controller operatively connected to the sensor and programmed to determine the permitted remaining oil life based on the determined volume of the body of oil and a determined factor representative of a volume of oil that is exposed to a combustion event. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method for determining a number of engine revolutions permitted prior to an oil change in an internal combustion engine that uses a body of oil, the method comprising:
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transferring the body of oil to the engine; determining a volume of the transferred body of oil; determining a factor representative of a volume of oil from the transferred body of oil that is exposed to a combustion event in the engine; determining the remaining oil life based on the determined volume of the body of oil and the determined factor representative of a volume of oil that is exposed to a combustion event; and activating an oil change indicator when the number of engine revolutions reaches a predetermined level. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification