Abstract: The present invention relates to an apparatus for monitoring a tire pressure. Provided is a tire pressure monitoring apparatus including: a radius analyzing unit which calculates a radius analysis value using a relative speed difference and an average speed calculated from wheel speeds of the wheels mounted on the vehicle; a regression equation calculating unit which calculates a first regression equation for the calculated radius analysis value and first driving information and a second regression equation for the calculated radius analysis value and second driving information; a mass calculating unit which calculates an additional mass of the vehicle; a calibration unit which corrects the calculated radius analysis value using a combination of the calculated first and second regression equations and the calculated additional mass; and a low pressure determining unit which determines a low pressure of a tire mounted on the vehicle using the corrected radius analysis value.

Abstract: The present invention relates to an apparatus and a method for monitoring a tire pressure considering a low pressure situation. Provided is a tire pressure monitoring apparatus considering a low pressure situation including: a radius analyzing unit which calculates a radius analysis value using a relative velocity difference and an average velocity calculated from wheel velocities of the wheels mounted on the vehicle; a critical value setting unit which compares the calculated radius analysis value with a predetermined determination reference value and sets different critical values in accordance with the comparison result; and a low pressure determining unit which determines a low pressure of a tire mounted on a vehicle using the set critical value.

Abstract: The present invention relates to an apparatus for monitoring a tire pressure. Provided is a tire pressure monitoring apparatus including: a radius analyzing unit which calculates a radius analysis value using a relative speed difference and an average speed calculated from wheel speeds of the wheels mounted on the vehicle; a regression equation calculating unit which calculates a first regression equation for the calculated radius analysis value and first driving information and a second regression equation for the calculated radius analysis value and second driving information; a mass calculating unit which calculates an additional mass of the vehicle; a calibration unit which corrects the calculated radius analysis value using a combination of the calculated first and second regression equations and the calculated additional mass; and a low pressure determining unit which determines a low voltage of a tire mounted on the vehicle using the corrected radius analysis value.

Abstract: The present invention relates to an apparatus and a method for monitoring a tire pressure considering a low pressure situation. Provided is a tire pressure monitoring apparatus considering a low pressure situation including: a radius analyzing unit which calculates a radius analysis value using a relative velocity difference and an average velocity calculated from wheel velocities of the wheels mounted on the vehicle; a critical value setting unit which compares the calculated radius analysis value with a predetermined determination reference value and sets different critical values in accordance with the comparison result; and a low pressure determining unit which determines a low pressure of a tire mounted on a vehicle using the set critical value.

Abstract: Disclosed herein is an electrochromic display device comprising a pair of transparent substrates facing each other, an anode electrode and a cathode electrode respectively formed on the transparent substrates, an electrolytic layer disposed between the anode electrode and the cathode electrode, an electrochromophore layer of a nano structure formed on at least one of the anode electrode and the cathode electrode, and a redox promoter layer coated with a conductive compound, on the other electrode.

Abstract: Disclosed herein is an electrochromic display device comprising a pair of transparent substrates facing each other, an anode electrode and a cathode electrode respectively formed on the transparent substrates, an electrolytic layer disposed between the anode electrode and the cathode electrode, an electrochromophore layer of a nano structure formed on at least one of the anode electrode and the cathode electrode, and a redox promoter layer coated with a conductive compound, on the other electrode.