Tire risk judging device of wheel assembly for vehicle

Details Tire risk judging device of wheel assembly for vehicle Tire risk judging device of wheel assembly for vehicle

2007-05-15

2010-11-23

Wu, Daniel (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S426330, C340S447000, C073S146000, C073S045000, C073S048000

Reexamination Certificate

active

07839274

ABSTRACT:
A tire risk judging device of a wheel assembly for a vehicle includes a pressure sensor detecting air pressure of a tire air chamber, an air pressure-generating device that can supply pressurized air to the tire air chamber, an electronic control unit, and an instrument panel display unit. The electronic control unit computes a supply airflow rate supplied from the air pressure-generating device to the tire air chamber between the present location and a specified location, computes a leakage airflow rate leaked from the tire air chamber between the present location and the specified location, computes air pressure in the specified location of the tire air chamber based on air pressure in the present location of the tire air chamber, the supply airflow rate, and the leakage airflow rate, and judges tire risk in the specified location based on the air pressure in the specified location of the tire air chamber.

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