System and method for extending a lubricant discard interval
First Claim
1. A processor-based system for predicting a portion of used lubricant in an engine that is to be drained and replaced by fresh lubricant or supplemented with fresh lubricant based on a plurality of analysis parameter values measured in a plurality of samples of used engine lubricant taken from the engine over a period of time, the system comprising:
- a first input that receives the plurality of analysis parameter values and a plurality of historical analysis parameter values for the engine that are indicative of one or more characteristics of the used lubricant and stores the plurality of analysis parameter values and historical analysis parameter values in a memory of a processor;
a second input that receives an analysis parameter threshold value for the used lubricant at the end of a service interval and stores the analysis parameter threshold value in the memory of the processor;
a determiner that determines a future analysis parameter value of a mixture of the used lubricant at the end of the service interval by performing modeling of the plurality of analysis parameter values and the historical analysis parameter values, and compares the future analysis parameter value to the analysis parameter threshold value to determine whether or not the future analysis parameter value exceeds the analysis parameter threshold value at the end of the service interval in order to provide an output indicating an amount of supplemental fresh oil to add or amount of used lubricant to be replaced with fresh lubricant in an engine in order to extend the lubricant to a future service interval, wherein the historical analysis parameter values include measured values of levels, concentrations, or amounts of one or more of iron, lead, tin, copper, aluminum, boron, nitration, potassium, silicon, or sodium in the lubricant samples.
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Accused Products
Abstract
A system, a method and a computer program to predict a portion of used lubricant in an engine that is to be drained and replaced by fresh lubricant based on an analysis parameter value that is measured in a sample of used engine lubricant from the engine. The system includes a first input that receives the analysis parameter value from the used lubricant and stores the analysis parameter value in a memory of a processor. A second input receives an analysis parameter threshold value for the used lubricant at the end of a service interval and stores the analysis parameter threshold value in a memory of the processor. A determiner predicts a future analysis parameter value of the used lubricant at the end of the service interval based on the analysis parameter value, and the analysis parameter threshold value.
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Citations
14 Claims
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1. A processor-based system for predicting a portion of used lubricant in an engine that is to be drained and replaced by fresh lubricant or supplemented with fresh lubricant based on a plurality of analysis parameter values measured in a plurality of samples of used engine lubricant taken from the engine over a period of time, the system comprising:
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a first input that receives the plurality of analysis parameter values and a plurality of historical analysis parameter values for the engine that are indicative of one or more characteristics of the used lubricant and stores the plurality of analysis parameter values and historical analysis parameter values in a memory of a processor; a second input that receives an analysis parameter threshold value for the used lubricant at the end of a service interval and stores the analysis parameter threshold value in the memory of the processor; a determiner that determines a future analysis parameter value of a mixture of the used lubricant at the end of the service interval by performing modeling of the plurality of analysis parameter values and the historical analysis parameter values, and compares the future analysis parameter value to the analysis parameter threshold value to determine whether or not the future analysis parameter value exceeds the analysis parameter threshold value at the end of the service interval in order to provide an output indicating an amount of supplemental fresh oil to add or amount of used lubricant to be replaced with fresh lubricant in an engine in order to extend the lubricant to a future service interval, wherein the historical analysis parameter values include measured values of levels, concentrations, or amounts of one or more of iron, lead, tin, copper, aluminum, boron, nitration, potassium, silicon, or sodium in the lubricant samples. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A processor-based method for predicting a portion of used lubricant in an engine that is to be drained and replaced by fresh lubricant based on a plurality of analysis parameter values measured in a sample of used engine lubricant taken from the engine, the method comprising:
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receiving at a first input of the processor the plurality of analysis parameter values and a plurality of historical analysis parameter values for the engine that are indicative of one or more characteristics of the used lubricant and storing the plurality of analysis parameter values and historical analysis parameter values in a memory of the processor; receiving at a second input of the processor an analysis parameter threshold value for the used lubricant at the end of a service interval and storing the analysis parameter threshold value in the memory of the processor; and using the processor (a) to determine a future analysis parameter value for the used at the end of the service interval by performing modeling of the plurality of analysis parameter values and the historical analysis parameter values;
(b) to compare the future analysis parameter value and the analysis parameter threshold value to determine whether the future analysis parameter value exceeds the analysis parameter threshold value at the end of the service interval; and
(c) to provide an output indicating an amount of supplemental lubricant to add or amount of used lubricant to be replaced by fresh lubricant in the engine in order to extend the lubricant to a future service interval, wherein the historical analysis parameter values include measured values of levels, concentrations, or amounts of one or more of iron, lead, tin, copper, aluminum, boron, nitration, potassium, silicon, or sodium in the lubricant samples. - View Dependent Claims (12, 13, 14)
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Specification