System for checking filter of air cleaner for automobiles
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United States of America Patent
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Nov 5, 2013
Grant Date -
Jun 7, 2012
app pub date -
Nov 16, 2011
filing date -
Dec 6, 2010
priority date (Note) -
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Abstract
A system recognizes a check-up time of a filter of an air cleaner. The system includes a power unit that supplies power to the system, a pressure sensor that measure pressure of a filter, at an outlet connected with a filter unit, a conversion circuit that converts the measured value into a predetermined type, a processor that controls the measurement period of the pressure sensor and receives and compare the measured value converted by the conversion circuit with a predetermined reference value, and a display unit that displays a filter replacement period.
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