Oil degradation warning system
First Claim
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1. An oil degradation warning system comprising:
- first means for detecting a plurality of parameters which are related to a plurality of degradation factors of an engine oil, wherein said first means comprises an oil temperature sensor which senses the temperature of the engine oil, an engine speed sensor which senses the rotation speed of the engine, and an engine load sensor which senses a load applied to the engine, wherein said engine oil temperature, engine rotation speed and engine load sensor constitute said plurality of parameters;
second means for processing said parameters and providing an oil degradation coefficient for each of said plurality of parameters and integrating each oil degradation coefficient in each factor with passage of time;
third means for issuing an instruction signal when at least one of the integrated values of the oil degradation coefficients exceeds a corresponding reference value; and
fourth means for providing a warning when said instruction signal is applied thereto, thereby indicating oil degradation.
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Abstract
Herein disclosed in an oil degradation warning system which comprises several sensors for sensing parameters which are closely related to degradation factors of the engine oil, a microcomputer which processes the detected parameters to compute oil degradation coefficients of them in each factor, integrates the oil degradation coefficients in each factor with passage of time, and issues an instruction signal when at least of the integrated values of the oil degradation coefficients exceeds a corresponding reference value, and a warning device which gives a warning when the instruction signal is applied thereto.
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Citations
5 Claims
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1. An oil degradation warning system comprising:
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first means for detecting a plurality of parameters which are related to a plurality of degradation factors of an engine oil, wherein said first means comprises an oil temperature sensor which senses the temperature of the engine oil, an engine speed sensor which senses the rotation speed of the engine, and an engine load sensor which senses a load applied to the engine, wherein said engine oil temperature, engine rotation speed and engine load sensor constitute said plurality of parameters; second means for processing said parameters and providing an oil degradation coefficient for each of said plurality of parameters and integrating each oil degradation coefficient in each factor with passage of time; third means for issuing an instruction signal when at least one of the integrated values of the oil degradation coefficients exceeds a corresponding reference value; and fourth means for providing a warning when said instruction signal is applied thereto, thereby indicating oil degradation. - View Dependent Claims (2, 3, 4, 5)
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Specification