The objective of this work was the development of a system level approach and laboratory investigations for the real-time measurement of friction between a tire and pavement. Measurement of the coefficient of friction in real-time is important for several vehicle safety systems, such as rear-end collision warning, adaptive cruise control and monitoring roadway pavement conditions to achieve cost effective surface treatment during adverse weather.
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Foster-Miller's friction sensor achieved the following technical goals: measurement of the coefficient of friction using a system level approach ,
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Successful laboratory demonstration of an electro-optical sensor that measures pavement water levels and determines the presence of snow and ice,
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Understanding the phenomenology of water formation on pavement surfaces and its effect on an incident laser beam, and
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Development of a theory of friction and its confirmation in the laboratory and during field testing.
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